quic: do not destroy incoming streams that have a consumer - #65335

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quic: do not destroy incoming streams that have a consumer#65335
nodejs-github-bot merged 5 commits into
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trivenay:quic-stream-consumer-gate

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Fixes: #64192

An incoming QUIC stream is currently destroyed at arrival unless the session has an onstream callback. That check is narrower than the ways a stream can actually be consumed: on an HTTP/3 session, the application layer drives incoming request streams through the session-level stream callbacks (onheaders, ontrailers, oninfo, onwanttrailers), and onstream is legitimately absent. Today such streams are destroyed out from under the h3 machinery, and the practical workaround is registering stub onstream handlers just to keep streams alive (as noted in the issue and in the WebTransport work in #63827).

This changes the arrival check to the broader invariant discussed in the issue: destroy an incoming stream only when the session has no consumer at all for it.

A consumer is either:

  • an onstream callback (any negotiated protocol), or
  • session-level stream callbacks, when the negotiated application actually produces header events. This is checked through the existing headersSupported session state, which the C++ side computes once when it selects the application from the negotiated ALPN — so the JS side reads a stored conclusion rather than re-deriving ALPN rules.

Notes on scope and safety:

  • Sessions with no consumers keep the current destroy-plus-warning behavior, so unconsumed streams cannot accumulate and hold flow control credit or MAX_STREAMS slots. (Kept streams that go idle are additionally bounded by streamIdleTimeout.)
  • The check is on the callback container, not on individual callback names — when a future consumer such as onsessionid (quic: Webtransport support quic/http 3 #63827) lands in the session-level stream callbacks, it participates with no further changes.
  • This path cannot affect HTTP/3's internal streams: control and QPACK streams are consumed inside nghttp3 and never exposed to JS (Http3Application::ReceiveStreamOpen), so only bidirectional request streams ever reach this check.
  • The check is not racy: callbacks are constructor-time configuration (listen()/connect() options), attached synchronously before the handshake that must complete before any peer stream can arrive, and the decision reads only session configuration — never stream content.

The new test covers both sides of the predicate: an HTTP/3 request completes on a session with only onheaders registered and no onstream (destroyed before this change), and stream callbacks registered on a session whose negotiated application cannot run them do not keep streams alive (destroyed with the warning, as before). The test was also validated against a build without this change, where the first case fails as expected. The existing test-quic-stream-uni-no-onstream continues to cover the no-callbacks-at-all case.

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@nodejs-github-botnodejs-github-bot added needs-ci PRs that need a full CI run. quic Issues and PRs related to the QUIC transport implementation. labels Aug 16, 2026
@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from 3b6d1fb to aa4680aCompareAugust 16, 2026 19:49
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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.12%. Comparing base (f3a8f1a) to head (7ab7790).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files
@@ Coverage Diff @@## main #65335 +/- ##
==========================================
+ Coverage 90.10% 90.12% +0.02% 
==========================================
Files 752 752 Lines 252207 252250 +43 Branches 47446 47444 -2 ==========================================
+ Hits 227254 227346 +92 + Misses 16261 16206 -55 - Partials 8692 8698 +6 
Files with missing linesCoverage Δ
lib/internal/quic/quic.js100.00% <100.00%> (ø)
lib/internal/quic/state.js100.00% <100.00%> (ø)

... and 32 files with indirect coverage changes

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

Comment threadlib/internal/quic/quic.js Outdated
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trivenayforce-pushed the quic-stream-consumer-gate branch from aa4680a to ae555c6CompareAugust 17, 2026 12:45
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Can we update quic.md to reflect this behavior? It currently says all peer-initiated streams arrive through session.onstream. This PR makes onstream optional when the negotiated application supports configured stream callbacks - for example, HTTP/3 requests consumed through onheaders. The general stream description, session.onstream docs, and HTTP/3 server example should clarify this.

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@trivikr Updated quic.md in a fixup commit: the general stream description and session.onstream now note that stream-level callbacks count as a consumer for applications that support them (e.g. HTTP/3), and the minimal HTTP/3 server example calls out that onstream is optional there. Also converted the earlier follow-up commit to a fixup.

@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from ae555c6 to 3b48565CompareAugust 18, 2026 22:46
Comment threadlib/internal/quic/quic.js Outdated
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: nodejs#64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from 3b48565 to 7ab7790CompareAugust 19, 2026 22:07
@trivikrtrivikr added the request-ci Add this label to start a Jenkins CI on a PR. label Aug 19, 2026
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@github-actionsgithub-actionsBot removed the request-ci Add this label to start a Jenkins CI on a PR. label Aug 20, 2026
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@trivikrtrivikr added commit-queue-squash PRs the Commit Queue should land as one squashed commit. commit-queue PRs queued for automated landing through the Commit Queue. labels Aug 20, 2026
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nodejs-github-bot merged commit fd5b135 into nodejs:mainAug 20, 2026
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Landed in fd5b135

@nodejs-github-botnodejs-github-bot removed the commit-queue PRs queued for automated landing through the Commit Queue. label Aug 20, 2026
aduh95 pushed a commit that referenced this pull request Aug 25, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
aduh95 pushed a commit that referenced this pull request Aug 25, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
aduh95 pushed a commit that referenced this pull request Aug 27, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
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author readyPRs with CI started, the required approvals, and no outstanding review comments.commit-queue-squashPRs the Commit Queue should land as one squashed commit.needs-ciPRs that need a full CI run.quicIssues and PRs related to the QUIC transport implementation.

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quic: Should QuicStream be destroyed, if onstream is not set

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}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
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var __re = new RegExp('^' + "github\\.com" + '
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quic: do not destroy incoming streams that have a consumer - #65335

Merged
nodejs-github-bot merged 5 commits into
nodejs:mainfrom
trivenay:quic-stream-consumer-gate
Aug 20, 2026
Merged

quic: do not destroy incoming streams that have a consumer#65335
nodejs-github-bot merged 5 commits into
nodejs:mainfrom
trivenay:quic-stream-consumer-gate

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Fixes: #64192

An incoming QUIC stream is currently destroyed at arrival unless the session has an onstream callback. That check is narrower than the ways a stream can actually be consumed: on an HTTP/3 session, the application layer drives incoming request streams through the session-level stream callbacks (onheaders, ontrailers, oninfo, onwanttrailers), and onstream is legitimately absent. Today such streams are destroyed out from under the h3 machinery, and the practical workaround is registering stub onstream handlers just to keep streams alive (as noted in the issue and in the WebTransport work in #63827).

This changes the arrival check to the broader invariant discussed in the issue: destroy an incoming stream only when the session has no consumer at all for it.

A consumer is either:

  • an onstream callback (any negotiated protocol), or
  • session-level stream callbacks, when the negotiated application actually produces header events. This is checked through the existing headersSupported session state, which the C++ side computes once when it selects the application from the negotiated ALPN — so the JS side reads a stored conclusion rather than re-deriving ALPN rules.

Notes on scope and safety:

  • Sessions with no consumers keep the current destroy-plus-warning behavior, so unconsumed streams cannot accumulate and hold flow control credit or MAX_STREAMS slots. (Kept streams that go idle are additionally bounded by streamIdleTimeout.)
  • The check is on the callback container, not on individual callback names — when a future consumer such as onsessionid (quic: Webtransport support quic/http 3 #63827) lands in the session-level stream callbacks, it participates with no further changes.
  • This path cannot affect HTTP/3's internal streams: control and QPACK streams are consumed inside nghttp3 and never exposed to JS (Http3Application::ReceiveStreamOpen), so only bidirectional request streams ever reach this check.
  • The check is not racy: callbacks are constructor-time configuration (listen()/connect() options), attached synchronously before the handshake that must complete before any peer stream can arrive, and the decision reads only session configuration — never stream content.

The new test covers both sides of the predicate: an HTTP/3 request completes on a session with only onheaders registered and no onstream (destroyed before this change), and stream callbacks registered on a session whose negotiated application cannot run them do not keep streams alive (destroyed with the warning, as before). The test was also validated against a build without this change, where the first case fails as expected. The existing test-quic-stream-uni-no-onstream continues to cover the no-callbacks-at-all case.

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Review requested:

  • @nodejs/quic

@nodejs-github-botnodejs-github-bot added needs-ci PRs that need a full CI run. quic Issues and PRs related to the QUIC transport implementation. labels Aug 16, 2026
@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from 3b6d1fb to aa4680aCompareAugust 16, 2026 19:49
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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.12%. Comparing base (f3a8f1a) to head (7ab7790).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files
@@ Coverage Diff @@## main #65335 +/- ##
==========================================
+ Coverage 90.10% 90.12% +0.02% 
==========================================
Files 752 752 Lines 252207 252250 +43 Branches 47446 47444 -2 ==========================================
+ Hits 227254 227346 +92 + Misses 16261 16206 -55 - Partials 8692 8698 +6 
Files with missing linesCoverage Δ
lib/internal/quic/quic.js100.00% <100.00%> (ø)
lib/internal/quic/state.js100.00% <100.00%> (ø)

... and 32 files with indirect coverage changes

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

Comment threadlib/internal/quic/quic.js Outdated
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trivenayforce-pushed the quic-stream-consumer-gate branch from aa4680a to ae555c6CompareAugust 17, 2026 12:45
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Can we update quic.md to reflect this behavior? It currently says all peer-initiated streams arrive through session.onstream. This PR makes onstream optional when the negotiated application supports configured stream callbacks - for example, HTTP/3 requests consumed through onheaders. The general stream description, session.onstream docs, and HTTP/3 server example should clarify this.

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@trivikr Updated quic.md in a fixup commit: the general stream description and session.onstream now note that stream-level callbacks count as a consumer for applications that support them (e.g. HTTP/3), and the minimal HTTP/3 server example calls out that onstream is optional there. Also converted the earlier follow-up commit to a fixup.

@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from ae555c6 to 3b48565CompareAugust 18, 2026 22:46
Comment threadlib/internal/quic/quic.js Outdated
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: nodejs#64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from 3b48565 to 7ab7790CompareAugust 19, 2026 22:07
@trivikrtrivikr added the request-ci Add this label to start a Jenkins CI on a PR. label Aug 19, 2026
@trivikrtrivikr added the author ready PRs with CI started, the required approvals, and no outstanding review comments. label Aug 19, 2026
@github-actionsgithub-actionsBot removed the request-ci Add this label to start a Jenkins CI on a PR. label Aug 20, 2026
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@trivikrtrivikr added commit-queue-squash PRs the Commit Queue should land as one squashed commit. commit-queue PRs queued for automated landing through the Commit Queue. labels Aug 20, 2026
@nodejs-github-bot
nodejs-github-bot merged commit fd5b135 into nodejs:mainAug 20, 2026
79 checks passed
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Landed in fd5b135

@nodejs-github-botnodejs-github-bot removed the commit-queue PRs queued for automated landing through the Commit Queue. label Aug 20, 2026
aduh95 pushed a commit that referenced this pull request Aug 25, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
aduh95 pushed a commit that referenced this pull request Aug 25, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
aduh95 pushed a commit that referenced this pull request Aug 27, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
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author readyPRs with CI started, the required approvals, and no outstanding review comments.commit-queue-squashPRs the Commit Queue should land as one squashed commit.needs-ciPRs that need a full CI run.quicIssues and PRs related to the QUIC transport implementation.

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quic: Should QuicStream be destroyed, if onstream is not set

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@trivenay@nodejs-github-bot@jasnell@trivikr
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix"); } } catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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quic: do not destroy incoming streams that have a consumer - #65335

Merged
nodejs-github-bot merged 5 commits into
nodejs:mainfrom
trivenay:quic-stream-consumer-gate
Aug 20, 2026
Merged

quic: do not destroy incoming streams that have a consumer#65335
nodejs-github-bot merged 5 commits into
nodejs:mainfrom
trivenay:quic-stream-consumer-gate

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Fixes: #64192

An incoming QUIC stream is currently destroyed at arrival unless the session has an onstream callback. That check is narrower than the ways a stream can actually be consumed: on an HTTP/3 session, the application layer drives incoming request streams through the session-level stream callbacks (onheaders, ontrailers, oninfo, onwanttrailers), and onstream is legitimately absent. Today such streams are destroyed out from under the h3 machinery, and the practical workaround is registering stub onstream handlers just to keep streams alive (as noted in the issue and in the WebTransport work in #63827).

This changes the arrival check to the broader invariant discussed in the issue: destroy an incoming stream only when the session has no consumer at all for it.

A consumer is either:

  • an onstream callback (any negotiated protocol), or
  • session-level stream callbacks, when the negotiated application actually produces header events. This is checked through the existing headersSupported session state, which the C++ side computes once when it selects the application from the negotiated ALPN — so the JS side reads a stored conclusion rather than re-deriving ALPN rules.

Notes on scope and safety:

  • Sessions with no consumers keep the current destroy-plus-warning behavior, so unconsumed streams cannot accumulate and hold flow control credit or MAX_STREAMS slots. (Kept streams that go idle are additionally bounded by streamIdleTimeout.)
  • The check is on the callback container, not on individual callback names — when a future consumer such as onsessionid (quic: Webtransport support quic/http 3 #63827) lands in the session-level stream callbacks, it participates with no further changes.
  • This path cannot affect HTTP/3's internal streams: control and QPACK streams are consumed inside nghttp3 and never exposed to JS (Http3Application::ReceiveStreamOpen), so only bidirectional request streams ever reach this check.
  • The check is not racy: callbacks are constructor-time configuration (listen()/connect() options), attached synchronously before the handshake that must complete before any peer stream can arrive, and the decision reads only session configuration — never stream content.

The new test covers both sides of the predicate: an HTTP/3 request completes on a session with only onheaders registered and no onstream (destroyed before this change), and stream callbacks registered on a session whose negotiated application cannot run them do not keep streams alive (destroyed with the warning, as before). The test was also validated against a build without this change, where the first case fails as expected. The existing test-quic-stream-uni-no-onstream continues to cover the no-callbacks-at-all case.

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@nodejs-github-botnodejs-github-bot added needs-ci PRs that need a full CI run. quic Issues and PRs related to the QUIC transport implementation. labels Aug 16, 2026
@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from 3b6d1fb to aa4680aCompareAugust 16, 2026 19:49
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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.12%. Comparing base (f3a8f1a) to head (7ab7790).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files
@@ Coverage Diff @@## main #65335 +/- ##
==========================================
+ Coverage 90.10% 90.12% +0.02% 
==========================================
Files 752 752 Lines 252207 252250 +43 Branches 47446 47444 -2 ==========================================
+ Hits 227254 227346 +92 + Misses 16261 16206 -55 - Partials 8692 8698 +6 
Files with missing linesCoverage Δ
lib/internal/quic/quic.js100.00% <100.00%> (ø)
lib/internal/quic/state.js100.00% <100.00%> (ø)

... and 32 files with indirect coverage changes

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

Comment threadlib/internal/quic/quic.js Outdated
@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from aa4680a to ae555c6CompareAugust 17, 2026 12:45
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Can we update quic.md to reflect this behavior? It currently says all peer-initiated streams arrive through session.onstream. This PR makes onstream optional when the negotiated application supports configured stream callbacks - for example, HTTP/3 requests consumed through onheaders. The general stream description, session.onstream docs, and HTTP/3 server example should clarify this.

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@trivikr Updated quic.md in a fixup commit: the general stream description and session.onstream now note that stream-level callbacks count as a consumer for applications that support them (e.g. HTTP/3), and the minimal HTTP/3 server example calls out that onstream is optional there. Also converted the earlier follow-up commit to a fixup.

@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from ae555c6 to 3b48565CompareAugust 18, 2026 22:46
Comment threadlib/internal/quic/quic.js Outdated
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: nodejs#64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from 3b48565 to 7ab7790CompareAugust 19, 2026 22:07
@trivikrtrivikr added the request-ci Add this label to start a Jenkins CI on a PR. label Aug 19, 2026
@trivikrtrivikr added the author ready PRs with CI started, the required approvals, and no outstanding review comments. label Aug 19, 2026
@github-actionsgithub-actionsBot removed the request-ci Add this label to start a Jenkins CI on a PR. label Aug 20, 2026
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@trivikrtrivikr added commit-queue-squash PRs the Commit Queue should land as one squashed commit. commit-queue PRs queued for automated landing through the Commit Queue. labels Aug 20, 2026
@nodejs-github-bot
nodejs-github-bot merged commit fd5b135 into nodejs:mainAug 20, 2026
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@nodejs-github-botnodejs-github-bot removed the commit-queue PRs queued for automated landing through the Commit Queue. label Aug 20, 2026
aduh95 pushed a commit that referenced this pull request Aug 25, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
aduh95 pushed a commit that referenced this pull request Aug 25, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
aduh95 pushed a commit that referenced this pull request Aug 27, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
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author readyPRs with CI started, the required approvals, and no outstanding review comments.commit-queue-squashPRs the Commit Queue should land as one squashed commit.needs-ciPRs that need a full CI run.quicIssues and PRs related to the QUIC transport implementation.

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quic: Should QuicStream be destroyed, if onstream is not set

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@trivenay@nodejs-github-bot@jasnell@trivikr
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms"); } } catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
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quic: do not destroy incoming streams that have a consumer - #65335

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nodejs-github-bot merged 5 commits into
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trivenay:quic-stream-consumer-gate
Aug 20, 2026
Merged

quic: do not destroy incoming streams that have a consumer#65335
nodejs-github-bot merged 5 commits into
nodejs:mainfrom
trivenay:quic-stream-consumer-gate

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Fixes: #64192

An incoming QUIC stream is currently destroyed at arrival unless the session has an onstream callback. That check is narrower than the ways a stream can actually be consumed: on an HTTP/3 session, the application layer drives incoming request streams through the session-level stream callbacks (onheaders, ontrailers, oninfo, onwanttrailers), and onstream is legitimately absent. Today such streams are destroyed out from under the h3 machinery, and the practical workaround is registering stub onstream handlers just to keep streams alive (as noted in the issue and in the WebTransport work in #63827).

This changes the arrival check to the broader invariant discussed in the issue: destroy an incoming stream only when the session has no consumer at all for it.

A consumer is either:

  • an onstream callback (any negotiated protocol), or
  • session-level stream callbacks, when the negotiated application actually produces header events. This is checked through the existing headersSupported session state, which the C++ side computes once when it selects the application from the negotiated ALPN — so the JS side reads a stored conclusion rather than re-deriving ALPN rules.

Notes on scope and safety:

  • Sessions with no consumers keep the current destroy-plus-warning behavior, so unconsumed streams cannot accumulate and hold flow control credit or MAX_STREAMS slots. (Kept streams that go idle are additionally bounded by streamIdleTimeout.)
  • The check is on the callback container, not on individual callback names — when a future consumer such as onsessionid (quic: Webtransport support quic/http 3 #63827) lands in the session-level stream callbacks, it participates with no further changes.
  • This path cannot affect HTTP/3's internal streams: control and QPACK streams are consumed inside nghttp3 and never exposed to JS (Http3Application::ReceiveStreamOpen), so only bidirectional request streams ever reach this check.
  • The check is not racy: callbacks are constructor-time configuration (listen()/connect() options), attached synchronously before the handshake that must complete before any peer stream can arrive, and the decision reads only session configuration — never stream content.

The new test covers both sides of the predicate: an HTTP/3 request completes on a session with only onheaders registered and no onstream (destroyed before this change), and stream callbacks registered on a session whose negotiated application cannot run them do not keep streams alive (destroyed with the warning, as before). The test was also validated against a build without this change, where the first case fails as expected. The existing test-quic-stream-uni-no-onstream continues to cover the no-callbacks-at-all case.

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Review requested:

  • @nodejs/quic

@nodejs-github-botnodejs-github-bot added needs-ci PRs that need a full CI run. quic Issues and PRs related to the QUIC transport implementation. labels Aug 16, 2026
@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from 3b6d1fb to aa4680aCompareAugust 16, 2026 19:49
@codecov

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.12%. Comparing base (f3a8f1a) to head (7ab7790).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files
@@ Coverage Diff @@## main #65335 +/- ##
==========================================
+ Coverage 90.10% 90.12% +0.02% 
==========================================
Files 752 752 Lines 252207 252250 +43 Branches 47446 47444 -2 ==========================================
+ Hits 227254 227346 +92 + Misses 16261 16206 -55 - Partials 8692 8698 +6 
Files with missing linesCoverage Δ
lib/internal/quic/quic.js100.00% <100.00%> (ø)
lib/internal/quic/state.js100.00% <100.00%> (ø)

... and 32 files with indirect coverage changes

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

Comment threadlib/internal/quic/quic.js Outdated
@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from aa4680a to ae555c6CompareAugust 17, 2026 12:45
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Can we update quic.md to reflect this behavior? It currently says all peer-initiated streams arrive through session.onstream. This PR makes onstream optional when the negotiated application supports configured stream callbacks - for example, HTTP/3 requests consumed through onheaders. The general stream description, session.onstream docs, and HTTP/3 server example should clarify this.

@trivenay

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@trivikr Updated quic.md in a fixup commit: the general stream description and session.onstream now note that stream-level callbacks count as a consumer for applications that support them (e.g. HTTP/3), and the minimal HTTP/3 server example calls out that onstream is optional there. Also converted the earlier follow-up commit to a fixup.

@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from ae555c6 to 3b48565CompareAugust 18, 2026 22:46
Comment threadlib/internal/quic/quic.js Outdated
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: nodejs#64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from 3b48565 to 7ab7790CompareAugust 19, 2026 22:07
@trivikrtrivikr added the request-ci Add this label to start a Jenkins CI on a PR. label Aug 19, 2026
@trivikrtrivikr added the author ready PRs with CI started, the required approvals, and no outstanding review comments. label Aug 19, 2026
@github-actionsgithub-actionsBot removed the request-ci Add this label to start a Jenkins CI on a PR. label Aug 20, 2026
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@trivikrtrivikr added commit-queue-squash PRs the Commit Queue should land as one squashed commit. commit-queue PRs queued for automated landing through the Commit Queue. labels Aug 20, 2026
@nodejs-github-bot
nodejs-github-bot merged commit fd5b135 into nodejs:mainAug 20, 2026
79 checks passed
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Landed in fd5b135

@nodejs-github-botnodejs-github-bot removed the commit-queue PRs queued for automated landing through the Commit Queue. label Aug 20, 2026
aduh95 pushed a commit that referenced this pull request Aug 25, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
aduh95 pushed a commit that referenced this pull request Aug 25, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
aduh95 pushed a commit that referenced this pull request Aug 27, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
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Labels

author readyPRs with CI started, the required approvals, and no outstanding review comments.commit-queue-squashPRs the Commit Queue should land as one squashed commit.needs-ciPRs that need a full CI run.quicIssues and PRs related to the QUIC transport implementation.

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Development

Successfully merging this pull request may close these issues.

quic: Should QuicStream be destroyed, if onstream is not set

4 participants

@trivenay@nodejs-github-bot@jasnell@trivikr
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links"); } } catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); } })(); (function(){ try { var __m = "youtube.com"; var __re = new RegExp('^' + "youtube\\.com" + '
Skip to content

quic: do not destroy incoming streams that have a consumer - #65335

Merged
nodejs-github-bot merged 5 commits into
nodejs:mainfrom
trivenay:quic-stream-consumer-gate
Aug 20, 2026
Merged

quic: do not destroy incoming streams that have a consumer#65335
nodejs-github-bot merged 5 commits into
nodejs:mainfrom
trivenay:quic-stream-consumer-gate

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Fixes: #64192

An incoming QUIC stream is currently destroyed at arrival unless the session has an onstream callback. That check is narrower than the ways a stream can actually be consumed: on an HTTP/3 session, the application layer drives incoming request streams through the session-level stream callbacks (onheaders, ontrailers, oninfo, onwanttrailers), and onstream is legitimately absent. Today such streams are destroyed out from under the h3 machinery, and the practical workaround is registering stub onstream handlers just to keep streams alive (as noted in the issue and in the WebTransport work in #63827).

This changes the arrival check to the broader invariant discussed in the issue: destroy an incoming stream only when the session has no consumer at all for it.

A consumer is either:

  • an onstream callback (any negotiated protocol), or
  • session-level stream callbacks, when the negotiated application actually produces header events. This is checked through the existing headersSupported session state, which the C++ side computes once when it selects the application from the negotiated ALPN — so the JS side reads a stored conclusion rather than re-deriving ALPN rules.

Notes on scope and safety:

  • Sessions with no consumers keep the current destroy-plus-warning behavior, so unconsumed streams cannot accumulate and hold flow control credit or MAX_STREAMS slots. (Kept streams that go idle are additionally bounded by streamIdleTimeout.)
  • The check is on the callback container, not on individual callback names — when a future consumer such as onsessionid (quic: Webtransport support quic/http 3 #63827) lands in the session-level stream callbacks, it participates with no further changes.
  • This path cannot affect HTTP/3's internal streams: control and QPACK streams are consumed inside nghttp3 and never exposed to JS (Http3Application::ReceiveStreamOpen), so only bidirectional request streams ever reach this check.
  • The check is not racy: callbacks are constructor-time configuration (listen()/connect() options), attached synchronously before the handshake that must complete before any peer stream can arrive, and the decision reads only session configuration — never stream content.

The new test covers both sides of the predicate: an HTTP/3 request completes on a session with only onheaders registered and no onstream (destroyed before this change), and stream callbacks registered on a session whose negotiated application cannot run them do not keep streams alive (destroyed with the warning, as before). The test was also validated against a build without this change, where the first case fails as expected. The existing test-quic-stream-uni-no-onstream continues to cover the no-callbacks-at-all case.

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@nodejs-github-botnodejs-github-bot added needs-ci PRs that need a full CI run. quic Issues and PRs related to the QUIC transport implementation. labels Aug 16, 2026
@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from 3b6d1fb to aa4680aCompareAugust 16, 2026 19:49
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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.12%. Comparing base (f3a8f1a) to head (7ab7790).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files
@@ Coverage Diff @@## main #65335 +/- ##
==========================================
+ Coverage 90.10% 90.12% +0.02% 
==========================================
Files 752 752 Lines 252207 252250 +43 Branches 47446 47444 -2 ==========================================
+ Hits 227254 227346 +92 + Misses 16261 16206 -55 - Partials 8692 8698 +6 
Files with missing linesCoverage Δ
lib/internal/quic/quic.js100.00% <100.00%> (ø)
lib/internal/quic/state.js100.00% <100.00%> (ø)

... and 32 files with indirect coverage changes

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

Comment threadlib/internal/quic/quic.js Outdated
@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from aa4680a to ae555c6CompareAugust 17, 2026 12:45
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Can we update quic.md to reflect this behavior? It currently says all peer-initiated streams arrive through session.onstream. This PR makes onstream optional when the negotiated application supports configured stream callbacks - for example, HTTP/3 requests consumed through onheaders. The general stream description, session.onstream docs, and HTTP/3 server example should clarify this.

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@trivikr Updated quic.md in a fixup commit: the general stream description and session.onstream now note that stream-level callbacks count as a consumer for applications that support them (e.g. HTTP/3), and the minimal HTTP/3 server example calls out that onstream is optional there. Also converted the earlier follow-up commit to a fixup.

@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from ae555c6 to 3b48565CompareAugust 18, 2026 22:46
Comment threadlib/internal/quic/quic.js Outdated
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: nodejs#64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from 3b48565 to 7ab7790CompareAugust 19, 2026 22:07
@trivikrtrivikr added the request-ci Add this label to start a Jenkins CI on a PR. label Aug 19, 2026
@trivikrtrivikr added the author ready PRs with CI started, the required approvals, and no outstanding review comments. label Aug 19, 2026
@github-actionsgithub-actionsBot removed the request-ci Add this label to start a Jenkins CI on a PR. label Aug 20, 2026
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@trivikrtrivikr added commit-queue-squash PRs the Commit Queue should land as one squashed commit. commit-queue PRs queued for automated landing through the Commit Queue. labels Aug 20, 2026
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nodejs-github-bot merged commit fd5b135 into nodejs:mainAug 20, 2026
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@nodejs-github-botnodejs-github-bot removed the commit-queue PRs queued for automated landing through the Commit Queue. label Aug 20, 2026
aduh95 pushed a commit that referenced this pull request Aug 25, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
aduh95 pushed a commit that referenced this pull request Aug 25, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
aduh95 pushed a commit that referenced this pull request Aug 27, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
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author readyPRs with CI started, the required approvals, and no outstanding review comments.commit-queue-squashPRs the Commit Queue should land as one squashed commit.needs-ciPRs that need a full CI run.quicIssues and PRs related to the QUIC transport implementation.

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quic: Should QuicStream be destroyed, if onstream is not set

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@trivenay@nodejs-github-bot@jasnell@trivikr
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default"); } } catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

quic: do not destroy incoming streams that have a consumer - #65335

Merged
nodejs-github-bot merged 5 commits into
nodejs:mainfrom
trivenay:quic-stream-consumer-gate
Aug 20, 2026
Merged

quic: do not destroy incoming streams that have a consumer#65335
nodejs-github-bot merged 5 commits into
nodejs:mainfrom
trivenay:quic-stream-consumer-gate

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Fixes: #64192

An incoming QUIC stream is currently destroyed at arrival unless the session has an onstream callback. That check is narrower than the ways a stream can actually be consumed: on an HTTP/3 session, the application layer drives incoming request streams through the session-level stream callbacks (onheaders, ontrailers, oninfo, onwanttrailers), and onstream is legitimately absent. Today such streams are destroyed out from under the h3 machinery, and the practical workaround is registering stub onstream handlers just to keep streams alive (as noted in the issue and in the WebTransport work in #63827).

This changes the arrival check to the broader invariant discussed in the issue: destroy an incoming stream only when the session has no consumer at all for it.

A consumer is either:

  • an onstream callback (any negotiated protocol), or
  • session-level stream callbacks, when the negotiated application actually produces header events. This is checked through the existing headersSupported session state, which the C++ side computes once when it selects the application from the negotiated ALPN — so the JS side reads a stored conclusion rather than re-deriving ALPN rules.

Notes on scope and safety:

  • Sessions with no consumers keep the current destroy-plus-warning behavior, so unconsumed streams cannot accumulate and hold flow control credit or MAX_STREAMS slots. (Kept streams that go idle are additionally bounded by streamIdleTimeout.)
  • The check is on the callback container, not on individual callback names — when a future consumer such as onsessionid (quic: Webtransport support quic/http 3 #63827) lands in the session-level stream callbacks, it participates with no further changes.
  • This path cannot affect HTTP/3's internal streams: control and QPACK streams are consumed inside nghttp3 and never exposed to JS (Http3Application::ReceiveStreamOpen), so only bidirectional request streams ever reach this check.
  • The check is not racy: callbacks are constructor-time configuration (listen()/connect() options), attached synchronously before the handshake that must complete before any peer stream can arrive, and the decision reads only session configuration — never stream content.

The new test covers both sides of the predicate: an HTTP/3 request completes on a session with only onheaders registered and no onstream (destroyed before this change), and stream callbacks registered on a session whose negotiated application cannot run them do not keep streams alive (destroyed with the warning, as before). The test was also validated against a build without this change, where the first case fails as expected. The existing test-quic-stream-uni-no-onstream continues to cover the no-callbacks-at-all case.

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Review requested:

  • @nodejs/quic

@nodejs-github-botnodejs-github-bot added needs-ci PRs that need a full CI run. quic Issues and PRs related to the QUIC transport implementation. labels Aug 16, 2026
@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from 3b6d1fb to aa4680aCompareAugust 16, 2026 19:49
@codecov

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.12%. Comparing base (f3a8f1a) to head (7ab7790).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files
@@ Coverage Diff @@## main #65335 +/- ##
==========================================
+ Coverage 90.10% 90.12% +0.02% 
==========================================
Files 752 752 Lines 252207 252250 +43 Branches 47446 47444 -2 ==========================================
+ Hits 227254 227346 +92 + Misses 16261 16206 -55 - Partials 8692 8698 +6 
Files with missing linesCoverage Δ
lib/internal/quic/quic.js100.00% <100.00%> (ø)
lib/internal/quic/state.js100.00% <100.00%> (ø)

... and 32 files with indirect coverage changes

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

Comment threadlib/internal/quic/quic.js Outdated
@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from aa4680a to ae555c6CompareAugust 17, 2026 12:45
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Can we update quic.md to reflect this behavior? It currently says all peer-initiated streams arrive through session.onstream. This PR makes onstream optional when the negotiated application supports configured stream callbacks - for example, HTTP/3 requests consumed through onheaders. The general stream description, session.onstream docs, and HTTP/3 server example should clarify this.

@trivenay

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ContributorAuthor

@trivikr Updated quic.md in a fixup commit: the general stream description and session.onstream now note that stream-level callbacks count as a consumer for applications that support them (e.g. HTTP/3), and the minimal HTTP/3 server example calls out that onstream is optional there. Also converted the earlier follow-up commit to a fixup.

@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from ae555c6 to 3b48565CompareAugust 18, 2026 22:46
Comment threadlib/internal/quic/quic.js Outdated
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: nodejs#64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from 3b48565 to 7ab7790CompareAugust 19, 2026 22:07
@trivikrtrivikr added the request-ci Add this label to start a Jenkins CI on a PR. label Aug 19, 2026
@trivikrtrivikr added the author ready PRs with CI started, the required approvals, and no outstanding review comments. label Aug 19, 2026
@github-actionsgithub-actionsBot removed the request-ci Add this label to start a Jenkins CI on a PR. label Aug 20, 2026
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@trivikrtrivikr added commit-queue-squash PRs the Commit Queue should land as one squashed commit. commit-queue PRs queued for automated landing through the Commit Queue. labels Aug 20, 2026
@nodejs-github-bot
nodejs-github-bot merged commit fd5b135 into nodejs:mainAug 20, 2026
79 checks passed
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Landed in fd5b135

@nodejs-github-botnodejs-github-bot removed the commit-queue PRs queued for automated landing through the Commit Queue. label Aug 20, 2026
aduh95 pushed a commit that referenced this pull request Aug 25, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
aduh95 pushed a commit that referenced this pull request Aug 25, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
aduh95 pushed a commit that referenced this pull request Aug 27, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
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Labels

author readyPRs with CI started, the required approvals, and no outstanding review comments.commit-queue-squashPRs the Commit Queue should land as one squashed commit.needs-ciPRs that need a full CI run.quicIssues and PRs related to the QUIC transport implementation.

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Successfully merging this pull request may close these issues.

quic: Should QuicStream be destroyed, if onstream is not set

4 participants

@trivenay@nodejs-github-bot@jasnell@trivikr
, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers"); } } catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); } })(); (function(){ try { var __m = "*"; var __re = new RegExp('^' + ".*" + '
Skip to content

quic: do not destroy incoming streams that have a consumer - #65335

Merged
nodejs-github-bot merged 5 commits into
nodejs:mainfrom
trivenay:quic-stream-consumer-gate
Aug 20, 2026
Merged

quic: do not destroy incoming streams that have a consumer#65335
nodejs-github-bot merged 5 commits into
nodejs:mainfrom
trivenay:quic-stream-consumer-gate

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Fixes: #64192

An incoming QUIC stream is currently destroyed at arrival unless the session has an onstream callback. That check is narrower than the ways a stream can actually be consumed: on an HTTP/3 session, the application layer drives incoming request streams through the session-level stream callbacks (onheaders, ontrailers, oninfo, onwanttrailers), and onstream is legitimately absent. Today such streams are destroyed out from under the h3 machinery, and the practical workaround is registering stub onstream handlers just to keep streams alive (as noted in the issue and in the WebTransport work in #63827).

This changes the arrival check to the broader invariant discussed in the issue: destroy an incoming stream only when the session has no consumer at all for it.

A consumer is either:

  • an onstream callback (any negotiated protocol), or
  • session-level stream callbacks, when the negotiated application actually produces header events. This is checked through the existing headersSupported session state, which the C++ side computes once when it selects the application from the negotiated ALPN — so the JS side reads a stored conclusion rather than re-deriving ALPN rules.

Notes on scope and safety:

  • Sessions with no consumers keep the current destroy-plus-warning behavior, so unconsumed streams cannot accumulate and hold flow control credit or MAX_STREAMS slots. (Kept streams that go idle are additionally bounded by streamIdleTimeout.)
  • The check is on the callback container, not on individual callback names — when a future consumer such as onsessionid (quic: Webtransport support quic/http 3 #63827) lands in the session-level stream callbacks, it participates with no further changes.
  • This path cannot affect HTTP/3's internal streams: control and QPACK streams are consumed inside nghttp3 and never exposed to JS (Http3Application::ReceiveStreamOpen), so only bidirectional request streams ever reach this check.
  • The check is not racy: callbacks are constructor-time configuration (listen()/connect() options), attached synchronously before the handshake that must complete before any peer stream can arrive, and the decision reads only session configuration — never stream content.

The new test covers both sides of the predicate: an HTTP/3 request completes on a session with only onheaders registered and no onstream (destroyed before this change), and stream callbacks registered on a session whose negotiated application cannot run them do not keep streams alive (destroyed with the warning, as before). The test was also validated against a build without this change, where the first case fails as expected. The existing test-quic-stream-uni-no-onstream continues to cover the no-callbacks-at-all case.

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Review requested:

  • @nodejs/quic

@nodejs-github-botnodejs-github-bot added needs-ci PRs that need a full CI run. quic Issues and PRs related to the QUIC transport implementation. labels Aug 16, 2026
@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from 3b6d1fb to aa4680aCompareAugust 16, 2026 19:49
@codecov

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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.12%. Comparing base (f3a8f1a) to head (7ab7790).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files
@@ Coverage Diff @@## main #65335 +/- ##
==========================================
+ Coverage 90.10% 90.12% +0.02% 
==========================================
Files 752 752 Lines 252207 252250 +43 Branches 47446 47444 -2 ==========================================
+ Hits 227254 227346 +92 + Misses 16261 16206 -55 - Partials 8692 8698 +6 
Files with missing linesCoverage Δ
lib/internal/quic/quic.js100.00% <100.00%> (ø)
lib/internal/quic/state.js100.00% <100.00%> (ø)

... and 32 files with indirect coverage changes

🚀 New features to boost your workflow:
  • ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.
  • 📦 JS Bundle Analysis: Save yourself from yourself by tracking and limiting bundle sizes in JS merges.

Comment threadlib/internal/quic/quic.js Outdated
@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from aa4680a to ae555c6CompareAugust 17, 2026 12:45
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Can we update quic.md to reflect this behavior? It currently says all peer-initiated streams arrive through session.onstream. This PR makes onstream optional when the negotiated application supports configured stream callbacks - for example, HTTP/3 requests consumed through onheaders. The general stream description, session.onstream docs, and HTTP/3 server example should clarify this.

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@trivikr Updated quic.md in a fixup commit: the general stream description and session.onstream now note that stream-level callbacks count as a consumer for applications that support them (e.g. HTTP/3), and the minimal HTTP/3 server example calls out that onstream is optional there. Also converted the earlier follow-up commit to a fixup.

@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from ae555c6 to 3b48565CompareAugust 18, 2026 22:46
Comment threadlib/internal/quic/quic.js Outdated
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: nodejs#64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from 3b48565 to 7ab7790CompareAugust 19, 2026 22:07
@trivikrtrivikr added the request-ci Add this label to start a Jenkins CI on a PR. label Aug 19, 2026
@trivikrtrivikr added the author ready PRs with CI started, the required approvals, and no outstanding review comments. label Aug 19, 2026
@github-actionsgithub-actionsBot removed the request-ci Add this label to start a Jenkins CI on a PR. label Aug 20, 2026
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@trivikrtrivikr added commit-queue-squash PRs the Commit Queue should land as one squashed commit. commit-queue PRs queued for automated landing through the Commit Queue. labels Aug 20, 2026
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nodejs-github-bot merged commit fd5b135 into nodejs:mainAug 20, 2026
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@nodejs-github-botnodejs-github-bot removed the commit-queue PRs queued for automated landing through the Commit Queue. label Aug 20, 2026
aduh95 pushed a commit that referenced this pull request Aug 25, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
aduh95 pushed a commit that referenced this pull request Aug 25, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
aduh95 pushed a commit that referenced this pull request Aug 27, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
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author readyPRs with CI started, the required approvals, and no outstanding review comments.commit-queue-squashPRs the Commit Queue should land as one squashed commit.needs-ciPRs that need a full CI run.quicIssues and PRs related to the QUIC transport implementation.

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quic: Should QuicStream be destroyed, if onstream is not set

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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode"); } } catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); } })(); })();
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quic: do not destroy incoming streams that have a consumer - #65335

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quic: do not destroy incoming streams that have a consumer#65335
nodejs-github-bot merged 5 commits into
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Fixes: #64192

An incoming QUIC stream is currently destroyed at arrival unless the session has an onstream callback. That check is narrower than the ways a stream can actually be consumed: on an HTTP/3 session, the application layer drives incoming request streams through the session-level stream callbacks (onheaders, ontrailers, oninfo, onwanttrailers), and onstream is legitimately absent. Today such streams are destroyed out from under the h3 machinery, and the practical workaround is registering stub onstream handlers just to keep streams alive (as noted in the issue and in the WebTransport work in #63827).

This changes the arrival check to the broader invariant discussed in the issue: destroy an incoming stream only when the session has no consumer at all for it.

A consumer is either:

  • an onstream callback (any negotiated protocol), or
  • session-level stream callbacks, when the negotiated application actually produces header events. This is checked through the existing headersSupported session state, which the C++ side computes once when it selects the application from the negotiated ALPN — so the JS side reads a stored conclusion rather than re-deriving ALPN rules.

Notes on scope and safety:

  • Sessions with no consumers keep the current destroy-plus-warning behavior, so unconsumed streams cannot accumulate and hold flow control credit or MAX_STREAMS slots. (Kept streams that go idle are additionally bounded by streamIdleTimeout.)
  • The check is on the callback container, not on individual callback names — when a future consumer such as onsessionid (quic: Webtransport support quic/http 3 #63827) lands in the session-level stream callbacks, it participates with no further changes.
  • This path cannot affect HTTP/3's internal streams: control and QPACK streams are consumed inside nghttp3 and never exposed to JS (Http3Application::ReceiveStreamOpen), so only bidirectional request streams ever reach this check.
  • The check is not racy: callbacks are constructor-time configuration (listen()/connect() options), attached synchronously before the handshake that must complete before any peer stream can arrive, and the decision reads only session configuration — never stream content.

The new test covers both sides of the predicate: an HTTP/3 request completes on a session with only onheaders registered and no onstream (destroyed before this change), and stream callbacks registered on a session whose negotiated application cannot run them do not keep streams alive (destroyed with the warning, as before). The test was also validated against a build without this change, where the first case fails as expected. The existing test-quic-stream-uni-no-onstream continues to cover the no-callbacks-at-all case.

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@nodejs-github-botnodejs-github-bot added needs-ci PRs that need a full CI run. quic Issues and PRs related to the QUIC transport implementation. labels Aug 16, 2026
@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from 3b6d1fb to aa4680aCompareAugust 16, 2026 19:49
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Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.12%. Comparing base (f3a8f1a) to head (7ab7790).
⚠️ Report is 3 commits behind head on main.

Additional details and impacted files
@@ Coverage Diff @@## main #65335 +/- ##
==========================================
+ Coverage 90.10% 90.12% +0.02% 
==========================================
Files 752 752 Lines 252207 252250 +43 Branches 47446 47444 -2 ==========================================
+ Hits 227254 227346 +92 + Misses 16261 16206 -55 - Partials 8692 8698 +6 
Files with missing linesCoverage Δ
lib/internal/quic/quic.js100.00% <100.00%> (ø)
lib/internal/quic/state.js100.00% <100.00%> (ø)

... and 32 files with indirect coverage changes

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Comment threadlib/internal/quic/quic.js Outdated
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trivenayforce-pushed the quic-stream-consumer-gate branch from aa4680a to ae555c6CompareAugust 17, 2026 12:45
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Can we update quic.md to reflect this behavior? It currently says all peer-initiated streams arrive through session.onstream. This PR makes onstream optional when the negotiated application supports configured stream callbacks - for example, HTTP/3 requests consumed through onheaders. The general stream description, session.onstream docs, and HTTP/3 server example should clarify this.

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@trivikr Updated quic.md in a fixup commit: the general stream description and session.onstream now note that stream-level callbacks count as a consumer for applications that support them (e.g. HTTP/3), and the minimal HTTP/3 server example calls out that onstream is optional there. Also converted the earlier follow-up commit to a fixup.

@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from ae555c6 to 3b48565CompareAugust 18, 2026 22:46
Comment threadlib/internal/quic/quic.js Outdated
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: nodejs#64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
@trivenay
trivenayforce-pushed the quic-stream-consumer-gate branch from 3b48565 to 7ab7790CompareAugust 19, 2026 22:07
@trivikrtrivikr added the request-ci Add this label to start a Jenkins CI on a PR. label Aug 19, 2026
@trivikrtrivikr added the author ready PRs with CI started, the required approvals, and no outstanding review comments. label Aug 19, 2026
@github-actionsgithub-actionsBot removed the request-ci Add this label to start a Jenkins CI on a PR. label Aug 20, 2026
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@trivikrtrivikr added commit-queue-squash PRs the Commit Queue should land as one squashed commit. commit-queue PRs queued for automated landing through the Commit Queue. labels Aug 20, 2026
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nodejs-github-bot merged commit fd5b135 into nodejs:mainAug 20, 2026
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@nodejs-github-botnodejs-github-bot removed the commit-queue PRs queued for automated landing through the Commit Queue. label Aug 20, 2026
aduh95 pushed a commit that referenced this pull request Aug 25, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
aduh95 pushed a commit that referenced this pull request Aug 25, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
aduh95 pushed a commit that referenced this pull request Aug 27, 2026
An incoming stream was destroyed unless the session had an onstream
callback, even when session-level stream callbacks (onheaders et al)
were registered and the negotiated application (HTTP/3) would drive
the stream through them. Users had to register stub onstream handlers
just to keep their streams alive.
Destroy an incoming stream only when the session has no consumer for
it at all: no onstream callback, and no session-level stream callbacks
runnable on the negotiated application (checked via the existing
headersSupported session state, computed when the application is
selected from ALPN). Sessions with no consumers keep the current
destroy-and-warn behavior so unconsumed streams cannot accumulate and
hold flow control credit.
On HTTP/3 sessions only bidirectional request streams reach this path;
control and QPACK streams are consumed internally by nghttp3 and are
never exposed to JavaScript.
Fixes: #64192
Signed-off-by: Naman Trivedi <trivenay@amazon.com>
PR-URL: #65335Fixes: #64192
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Trivikram Kamat <trivikr.dev@gmail.com>
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author readyPRs with CI started, the required approvals, and no outstanding review comments.commit-queue-squashPRs the Commit Queue should land as one squashed commit.needs-ciPRs that need a full CI run.quicIssues and PRs related to the QUIC transport implementation.

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quic: Should QuicStream be destroyed, if onstream is not set

4 participants

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