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gnoffgnoff
authored
[Fizz] add additional task reentrancy protections (#36291)
The prior fix for finishedTask reentrancy solved an observed failure. This change adds a bit of defensive bookeeping to protect against other theoretical reentrant task finishing that might fail in simlar ways but where we don't have a clear demonstration of the bug.
1 parent f6fe427 commit 4b073f4

1 file changed

Lines changed: 18 additions & 5 deletions

File tree

‎packages/react-server/src/ReactFizzServer.js‎

Lines changed: 18 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -4438,9 +4438,15 @@ function erroredTask(
44384438
constboundaryRow=boundary.row;
44394439
if(boundaryRow!==null){
44404440
// Unblock the SuspenseListRow that was blocked by this boundary.
4441+
// finishSuspenseListRow → unblockSuspenseListRow → finishedTask reenters
4442+
// and decrements allPendingTasks. Pin the counter above zero so those
4443+
// nested calls can't trip completeAll before this outer frame's own
4444+
// zero check at the end.
4445+
request.allPendingTasks++;
44414446
if(--boundaryRow.pendingTasks===0){
44424447
finishSuspenseListRow(request,boundaryRow);
44434448
}
4449+
request.allPendingTasks--;
44444450
}
44454451

44464452
// Regardless of what happens next, this boundary won't be displayed,
@@ -4955,20 +4961,21 @@ function finishedTask(
49554961
hoistHoistables(boundaryRow.hoistables,boundary.contentState);
49564962
}
49574963
if(!isEligibleForOutlining(request,boundary)){
4958-
// abortTaskSoft reenters finishedTask for each aborted task, which
4959-
// decrements allPendingTasks. Ensure that these reentrant finsihedTask
4960-
// calls do not call `completeAll` too early by forcing the task counter
4961-
// above zero for their duration.
4964+
// abortTaskSoft (below) and finishSuspenseListRow → unblockSuspenseListRow
4965+
// → finishedTask (further below) both reenter finishedTask and decrement
4966+
// allPendingTasks. Pin the counter above zero for the duration of these
4967+
// fan-outs so a nested finishedTask can't observe 0 and call completeAll
4968+
// before this outer call reaches its own zero check.
49624969
request.allPendingTasks++;
49634970
boundary.fallbackAbortableTasks.forEach(abortTaskSoft,request);
49644971
boundary.fallbackAbortableTasks.clear();
4965-
request.allPendingTasks--;
49664972
if(boundaryRow!==null){
49674973
// If we aren't eligible for outlining, we don't have to wait until we flush it.
49684974
if(--boundaryRow.pendingTasks===0){
49694975
finishSuspenseListRow(request,boundaryRow);
49704976
}
49714977
}
4978+
request.allPendingTasks--;
49724979
}
49734980

49744981
if(
@@ -4994,11 +5001,17 @@ function finishedTask(
49945001
boundaryRow.next,
49955002
);
49965003
}
5004+
// finishSuspenseListRow → unblockSuspenseListRow → finishedTask reenters
5005+
// and decrements allPendingTasks. Pin the counter above zero so those
5006+
// nested calls can't trip completeAll before this outer frame's own
5007+
// zero check at the end.
5008+
request.allPendingTasks++;
49975009
if(--boundaryRow.pendingTasks===0){
49985010
// This is really unnecessary since we've already postponed the boundaries but
49995011
// for pairity with other track+finish paths. We might end up using the hoisting.
50005012
finishSuspenseListRow(request,boundaryRow);
50015013
}
5014+
request.allPendingTasks--;
50025015
}
50035016
}
50045017
}else{

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Comments
 (0)
, 'i'); if (__m === '*' || __re.test(location.href)) { // Add copy buttons to all 
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var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '
[Fizz] add additional task reentrancy protections (#36291) · react/react@4b073f4 · GitHub
Skip to content
Commit 4b073f4
Browse files
gnoffgnoff
authored
[Fizz] add additional task reentrancy protections (#36291)
The prior fix for finishedTask reentrancy solved an observed failure.
This change adds a bit of defensive bookeeping to protect against other
theoretical reentrant task finishing that might fail in simlar ways but
where we don't have a clear demonstration of the bug.
1 parent f6fe427 commit 4b073f4
1 file changed
Lines changed: 18 additions & 5 deletions
File tree
‎packages/react-server/src/ReactFizzServer.js‎
Lines changed: 18 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -4438,9 +4438,15 @@ function erroredTask(
44384438
constboundaryRow=boundary.row;
44394439
if(boundaryRow!==null){
44404440
// Unblock the SuspenseListRow that was blocked by this boundary.
4441+
// finishSuspenseListRow → unblockSuspenseListRow → finishedTask reenters
4442+
// and decrements allPendingTasks. Pin the counter above zero so those
4443+
// nested calls can't trip completeAll before this outer frame's own
4444+
// zero check at the end.
4445+
request.allPendingTasks++;
44414446
if(--boundaryRow.pendingTasks===0){
44424447
finishSuspenseListRow(request,boundaryRow);
44434448
}
4449+
request.allPendingTasks--;
44444450
}
44454451

44464452
// Regardless of what happens next, this boundary won't be displayed,
@@ -4955,20 +4961,21 @@ function finishedTask(
49554961
hoistHoistables(boundaryRow.hoistables,boundary.contentState);
49564962
}
49574963
if(!isEligibleForOutlining(request,boundary)){
4958-
// abortTaskSoft reenters finishedTask for each aborted task, which
4959-
// decrements allPendingTasks. Ensure that these reentrant finsihedTask
4960-
// calls do not call `completeAll` too early by forcing the task counter
4961-
// above zero for their duration.
4964+
// abortTaskSoft (below) and finishSuspenseListRow → unblockSuspenseListRow
4965+
// → finishedTask (further below) both reenter finishedTask and decrement
4966+
// allPendingTasks. Pin the counter above zero for the duration of these
4967+
// fan-outs so a nested finishedTask can't observe 0 and call completeAll
4968+
// before this outer call reaches its own zero check.
49624969
request.allPendingTasks++;
49634970
boundary.fallbackAbortableTasks.forEach(abortTaskSoft,request);
49644971
boundary.fallbackAbortableTasks.clear();
4965-
request.allPendingTasks--;
49664972
if(boundaryRow!==null){
49674973
// If we aren't eligible for outlining, we don't have to wait until we flush it.
49684974
if(--boundaryRow.pendingTasks===0){
49694975
finishSuspenseListRow(request,boundaryRow);
49704976
}
49714977
}
4978+
request.allPendingTasks--;
49724979
}
49734980

49744981
if(
@@ -4994,11 +5001,17 @@ function finishedTask(
49945001
boundaryRow.next,
49955002
);
49965003
}
5004+
// finishSuspenseListRow → unblockSuspenseListRow → finishedTask reenters
5005+
// and decrements allPendingTasks. Pin the counter above zero so those
5006+
// nested calls can't trip completeAll before this outer frame's own
5007+
// zero check at the end.
5008+
request.allPendingTasks++;
49975009
if(--boundaryRow.pendingTasks===0){
49985010
// This is really unnecessary since we've already postponed the boundaries but
49995011
// for pairity with other track+finish paths. We might end up using the hoisting.
50005012
finishSuspenseListRow(request,boundaryRow);
50015013
}
5014+
request.allPendingTasks--;
50025015
}
50035016
}
50045017
}else{
0 commit comments
Comments
 (0)

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Force GitHub README to respect dark mode
(function() {
var style = document.createElement('style');
style.textContent = '
.markdown-body {
color-scheme: dark light;
}
.markdown-body pre { background: #161b22 !important; }
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';
document.head.appendChild(style);
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} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
[Fizz] add additional task reentrancy protections (#36291) · react/react@4b073f4 · GitHub
Skip to content
Commit 4b073f4
Browse files
gnoffgnoff
authored
[Fizz] add additional task reentrancy protections (#36291)
The prior fix for finishedTask reentrancy solved an observed failure.
This change adds a bit of defensive bookeeping to protect against other
theoretical reentrant task finishing that might fail in simlar ways but
where we don't have a clear demonstration of the bug.
1 parent f6fe427 commit 4b073f4
1 file changed
Lines changed: 18 additions & 5 deletions
File tree
‎packages/react-server/src/ReactFizzServer.js‎
Lines changed: 18 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -4438,9 +4438,15 @@ function erroredTask(
44384438
constboundaryRow=boundary.row;
44394439
if(boundaryRow!==null){
44404440
// Unblock the SuspenseListRow that was blocked by this boundary.
4441+
// finishSuspenseListRow → unblockSuspenseListRow → finishedTask reenters
4442+
// and decrements allPendingTasks. Pin the counter above zero so those
4443+
// nested calls can't trip completeAll before this outer frame's own
4444+
// zero check at the end.
4445+
request.allPendingTasks++;
44414446
if(--boundaryRow.pendingTasks===0){
44424447
finishSuspenseListRow(request,boundaryRow);
44434448
}
4449+
request.allPendingTasks--;
44444450
}
44454451

44464452
// Regardless of what happens next, this boundary won't be displayed,
@@ -4955,20 +4961,21 @@ function finishedTask(
49554961
hoistHoistables(boundaryRow.hoistables,boundary.contentState);
49564962
}
49574963
if(!isEligibleForOutlining(request,boundary)){
4958-
// abortTaskSoft reenters finishedTask for each aborted task, which
4959-
// decrements allPendingTasks. Ensure that these reentrant finsihedTask
4960-
// calls do not call `completeAll` too early by forcing the task counter
4961-
// above zero for their duration.
4964+
// abortTaskSoft (below) and finishSuspenseListRow → unblockSuspenseListRow
4965+
// → finishedTask (further below) both reenter finishedTask and decrement
4966+
// allPendingTasks. Pin the counter above zero for the duration of these
4967+
// fan-outs so a nested finishedTask can't observe 0 and call completeAll
4968+
// before this outer call reaches its own zero check.
49624969
request.allPendingTasks++;
49634970
boundary.fallbackAbortableTasks.forEach(abortTaskSoft,request);
49644971
boundary.fallbackAbortableTasks.clear();
4965-
request.allPendingTasks--;
49664972
if(boundaryRow!==null){
49674973
// If we aren't eligible for outlining, we don't have to wait until we flush it.
49684974
if(--boundaryRow.pendingTasks===0){
49694975
finishSuspenseListRow(request,boundaryRow);
49704976
}
49714977
}
4978+
request.allPendingTasks--;
49724979
}
49734980

49744981
if(
@@ -4994,11 +5001,17 @@ function finishedTask(
49945001
boundaryRow.next,
49955002
);
49965003
}
5004+
// finishSuspenseListRow → unblockSuspenseListRow → finishedTask reenters
5005+
// and decrements allPendingTasks. Pin the counter above zero so those
5006+
// nested calls can't trip completeAll before this outer frame's own
5007+
// zero check at the end.
5008+
request.allPendingTasks++;
49975009
if(--boundaryRow.pendingTasks===0){
49985010
// This is really unnecessary since we've already postponed the boundaries but
49995011
// for pairity with other track+finish paths. We might end up using the hoisting.
50005012
finishSuspenseListRow(request,boundaryRow);
50015013
}
5014+
request.allPendingTasks--;
50025015
}
50035016
}
50045017
}else{
0 commit comments
Comments
 (0)

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Highlight search terms from Google/DuckDuckGo/Bing referrer
(function() {
var ref = document.referrer;
var terms = [];
if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {
var url = new URL(ref);
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var style = document.createElement('style');
style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';
document.head.appendChild(style);
function highlight(node) {
if (node.nodeType === 3) { // text node
var text = node.textContent;
var found = false;
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var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\]\\]/g, '\\') + ')', 'gi');
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observer.observe(document.body, { childList: true, subtree: true });
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} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
[Fizz] add additional task reentrancy protections (#36291) · react/react@4b073f4 · GitHub
Skip to content
Commit 4b073f4
Browse files
gnoffgnoff
authored
[Fizz] add additional task reentrancy protections (#36291)
The prior fix for finishedTask reentrancy solved an observed failure.
This change adds a bit of defensive bookeeping to protect against other
theoretical reentrant task finishing that might fail in simlar ways but
where we don't have a clear demonstration of the bug.
1 parent f6fe427 commit 4b073f4
1 file changed
Lines changed: 18 additions & 5 deletions
File tree
‎packages/react-server/src/ReactFizzServer.js‎
Lines changed: 18 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -4438,9 +4438,15 @@ function erroredTask(
44384438
constboundaryRow=boundary.row;
44394439
if(boundaryRow!==null){
44404440
// Unblock the SuspenseListRow that was blocked by this boundary.
4441+
// finishSuspenseListRow → unblockSuspenseListRow → finishedTask reenters
4442+
// and decrements allPendingTasks. Pin the counter above zero so those
4443+
// nested calls can't trip completeAll before this outer frame's own
4444+
// zero check at the end.
4445+
request.allPendingTasks++;
44414446
if(--boundaryRow.pendingTasks===0){
44424447
finishSuspenseListRow(request,boundaryRow);
44434448
}
4449+
request.allPendingTasks--;
44444450
}
44454451

44464452
// Regardless of what happens next, this boundary won't be displayed,
@@ -4955,20 +4961,21 @@ function finishedTask(
49554961
hoistHoistables(boundaryRow.hoistables,boundary.contentState);
49564962
}
49574963
if(!isEligibleForOutlining(request,boundary)){
4958-
// abortTaskSoft reenters finishedTask for each aborted task, which
4959-
// decrements allPendingTasks. Ensure that these reentrant finsihedTask
4960-
// calls do not call `completeAll` too early by forcing the task counter
4961-
// above zero for their duration.
4964+
// abortTaskSoft (below) and finishSuspenseListRow → unblockSuspenseListRow
4965+
// → finishedTask (further below) both reenter finishedTask and decrement
4966+
// allPendingTasks. Pin the counter above zero for the duration of these
4967+
// fan-outs so a nested finishedTask can't observe 0 and call completeAll
4968+
// before this outer call reaches its own zero check.
49624969
request.allPendingTasks++;
49634970
boundary.fallbackAbortableTasks.forEach(abortTaskSoft,request);
49644971
boundary.fallbackAbortableTasks.clear();
4965-
request.allPendingTasks--;
49664972
if(boundaryRow!==null){
49674973
// If we aren't eligible for outlining, we don't have to wait until we flush it.
49684974
if(--boundaryRow.pendingTasks===0){
49694975
finishSuspenseListRow(request,boundaryRow);
49704976
}
49714977
}
4978+
request.allPendingTasks--;
49724979
}
49734980

49744981
if(
@@ -4994,11 +5001,17 @@ function finishedTask(
49945001
boundaryRow.next,
49955002
);
49965003
}
5004+
// finishSuspenseListRow → unblockSuspenseListRow → finishedTask reenters
5005+
// and decrements allPendingTasks. Pin the counter above zero so those
5006+
// nested calls can't trip completeAll before this outer frame's own
5007+
// zero check at the end.
5008+
request.allPendingTasks++;
49975009
if(--boundaryRow.pendingTasks===0){
49985010
// This is really unnecessary since we've already postponed the boundaries but
49995011
// for pairity with other track+finish paths. We might end up using the hoisting.
50005012
finishSuspenseListRow(request,boundaryRow);
50015013
}
5014+
request.allPendingTasks--;
50025015
}
50035016
}
50045017
}else{
0 commit comments
Comments
 (0)

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Strip utm_, fbclid, gclid, etc. from all links on page
(function() {
var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',
'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',
'ref', 'ref_src', 'source', 'medium', 'campaign'];
function cleanUrl(url) {
try {
var u = new URL(url, window.location.origin);
var changed = false;
trackingParams.forEach(function(p) {
if (u.searchParams.has(p)) {
u.searchParams.delete(p);
changed = true;
}
});
return changed ? u.toString() : url;
} catch (e) {
return url;
}
}
function cleanLinks() {
document.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
cleanLinks();
var observer = new MutationObserver(function(mutations) {
mutations.forEach(function(m) {
m.addedNodes.forEach(function(node) {
if (node.nodeType === 1) {
if (node.tagName === 'A') cleanLinks();
node.querySelectorAll('a[href]').forEach(function(a) {
var clean = cleanUrl(a.href);
if (clean !== a.href) a.href = clean;
});
}
});
});
});
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '
[Fizz] add additional task reentrancy protections (#36291) · react/react@4b073f4 · GitHub
Skip to content
Commit 4b073f4
Browse files
gnoffgnoff
authored
[Fizz] add additional task reentrancy protections (#36291)
The prior fix for finishedTask reentrancy solved an observed failure.
This change adds a bit of defensive bookeeping to protect against other
theoretical reentrant task finishing that might fail in simlar ways but
where we don't have a clear demonstration of the bug.
1 parent f6fe427 commit 4b073f4
1 file changed
Lines changed: 18 additions & 5 deletions
File tree
‎packages/react-server/src/ReactFizzServer.js‎
Lines changed: 18 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -4438,9 +4438,15 @@ function erroredTask(
44384438
constboundaryRow=boundary.row;
44394439
if(boundaryRow!==null){
44404440
// Unblock the SuspenseListRow that was blocked by this boundary.
4441+
// finishSuspenseListRow → unblockSuspenseListRow → finishedTask reenters
4442+
// and decrements allPendingTasks. Pin the counter above zero so those
4443+
// nested calls can't trip completeAll before this outer frame's own
4444+
// zero check at the end.
4445+
request.allPendingTasks++;
44414446
if(--boundaryRow.pendingTasks===0){
44424447
finishSuspenseListRow(request,boundaryRow);
44434448
}
4449+
request.allPendingTasks--;
44444450
}
44454451

44464452
// Regardless of what happens next, this boundary won't be displayed,
@@ -4955,20 +4961,21 @@ function finishedTask(
49554961
hoistHoistables(boundaryRow.hoistables,boundary.contentState);
49564962
}
49574963
if(!isEligibleForOutlining(request,boundary)){
4958-
// abortTaskSoft reenters finishedTask for each aborted task, which
4959-
// decrements allPendingTasks. Ensure that these reentrant finsihedTask
4960-
// calls do not call `completeAll` too early by forcing the task counter
4961-
// above zero for their duration.
4964+
// abortTaskSoft (below) and finishSuspenseListRow → unblockSuspenseListRow
4965+
// → finishedTask (further below) both reenter finishedTask and decrement
4966+
// allPendingTasks. Pin the counter above zero for the duration of these
4967+
// fan-outs so a nested finishedTask can't observe 0 and call completeAll
4968+
// before this outer call reaches its own zero check.
49624969
request.allPendingTasks++;
49634970
boundary.fallbackAbortableTasks.forEach(abortTaskSoft,request);
49644971
boundary.fallbackAbortableTasks.clear();
4965-
request.allPendingTasks--;
49664972
if(boundaryRow!==null){
49674973
// If we aren't eligible for outlining, we don't have to wait until we flush it.
49684974
if(--boundaryRow.pendingTasks===0){
49694975
finishSuspenseListRow(request,boundaryRow);
49704976
}
49714977
}
4978+
request.allPendingTasks--;
49724979
}
49734980

49744981
if(
@@ -4994,11 +5001,17 @@ function finishedTask(
49945001
boundaryRow.next,
49955002
);
49965003
}
5004+
// finishSuspenseListRow → unblockSuspenseListRow → finishedTask reenters
5005+
// and decrements allPendingTasks. Pin the counter above zero so those
5006+
// nested calls can't trip completeAll before this outer frame's own
5007+
// zero check at the end.
5008+
request.allPendingTasks++;
49975009
if(--boundaryRow.pendingTasks===0){
49985010
// This is really unnecessary since we've already postponed the boundaries but
49995011
// for pairity with other track+finish paths. We might end up using the hoisting.
50005012
finishSuspenseListRow(request,boundaryRow);
50015013
}
5014+
request.allPendingTasks--;
50025015
}
50035016
}
50045017
}else{
0 commit comments
Comments
 (0)

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Auto-enable theater mode on YouTube
(function() {
function tryTheater() {
var btn = document.querySelector('button[aria-label="Theater mode"], ytd-player #player button[title="Theater mode"]');
if (btn && !btn.classList.contains('activated')) {
btn.click();
}
}
// Try immediately
tryTheater();
// Try after navigation (SPA)
var lastUrl = location.href;
setInterval(function() {
if (location.href !== lastUrl) {
lastUrl = location.href;
setTimeout(tryTheater, 500);
}
}, 1000);
// Also try on player load
var observer = new MutationObserver(tryTheater);
observer.observe(document.body, { childList: true, subtree: true });
})();
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
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try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
[Fizz] add additional task reentrancy protections (#36291) · react/react@4b073f4 · GitHub
Skip to content
Commit 4b073f4
Browse files
gnoffgnoff
authored
[Fizz] add additional task reentrancy protections (#36291)
The prior fix for finishedTask reentrancy solved an observed failure.
This change adds a bit of defensive bookeeping to protect against other
theoretical reentrant task finishing that might fail in simlar ways but
where we don't have a clear demonstration of the bug.
1 parent f6fe427 commit 4b073f4
1 file changed
Lines changed: 18 additions & 5 deletions
File tree
‎packages/react-server/src/ReactFizzServer.js‎
Lines changed: 18 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -4438,9 +4438,15 @@ function erroredTask(
44384438
constboundaryRow=boundary.row;
44394439
if(boundaryRow!==null){
44404440
// Unblock the SuspenseListRow that was blocked by this boundary.
4441+
// finishSuspenseListRow → unblockSuspenseListRow → finishedTask reenters
4442+
// and decrements allPendingTasks. Pin the counter above zero so those
4443+
// nested calls can't trip completeAll before this outer frame's own
4444+
// zero check at the end.
4445+
request.allPendingTasks++;
44414446
if(--boundaryRow.pendingTasks===0){
44424447
finishSuspenseListRow(request,boundaryRow);
44434448
}
4449+
request.allPendingTasks--;
44444450
}
44454451

44464452
// Regardless of what happens next, this boundary won't be displayed,
@@ -4955,20 +4961,21 @@ function finishedTask(
49554961
hoistHoistables(boundaryRow.hoistables,boundary.contentState);
49564962
}
49574963
if(!isEligibleForOutlining(request,boundary)){
4958-
// abortTaskSoft reenters finishedTask for each aborted task, which
4959-
// decrements allPendingTasks. Ensure that these reentrant finsihedTask
4960-
// calls do not call `completeAll` too early by forcing the task counter
4961-
// above zero for their duration.
4964+
// abortTaskSoft (below) and finishSuspenseListRow → unblockSuspenseListRow
4965+
// → finishedTask (further below) both reenter finishedTask and decrement
4966+
// allPendingTasks. Pin the counter above zero for the duration of these
4967+
// fan-outs so a nested finishedTask can't observe 0 and call completeAll
4968+
// before this outer call reaches its own zero check.
49624969
request.allPendingTasks++;
49634970
boundary.fallbackAbortableTasks.forEach(abortTaskSoft,request);
49644971
boundary.fallbackAbortableTasks.clear();
4965-
request.allPendingTasks--;
49664972
if(boundaryRow!==null){
49674973
// If we aren't eligible for outlining, we don't have to wait until we flush it.
49684974
if(--boundaryRow.pendingTasks===0){
49694975
finishSuspenseListRow(request,boundaryRow);
49704976
}
49714977
}
4978+
request.allPendingTasks--;
49724979
}
49734980

49744981
if(
@@ -4994,11 +5001,17 @@ function finishedTask(
49945001
boundaryRow.next,
49955002
);
49965003
}
5004+
// finishSuspenseListRow → unblockSuspenseListRow → finishedTask reenters
5005+
// and decrements allPendingTasks. Pin the counter above zero so those
5006+
// nested calls can't trip completeAll before this outer frame's own
5007+
// zero check at the end.
5008+
request.allPendingTasks++;
49975009
if(--boundaryRow.pendingTasks===0){
49985010
// This is really unnecessary since we've already postponed the boundaries but
49995011
// for pairity with other track+finish paths. We might end up using the hoisting.
50005012
finishSuspenseListRow(request,boundaryRow);
50015013
}
5014+
request.allPendingTasks--;
50025015
}
50035016
}
50045017
}else{
0 commit comments
Comments
 (0)

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Remove or un-stick sticky/fixed headers that block content
(function() {
function unstick() {
document.querySelectorAll('header, nav, [role="banner"], .header, .navbar, .sticky, .fixed-top, [style*="position: fixed"], [style*="position:sticky"]').forEach(function(el) {
if (el.style.position === 'fixed' || el.style.position === 'sticky' || getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {
el.style.position = 'static';
el.style.top = 'auto';
el.style.zIndex = 'auto';
}
});
}
unstick();
var observer = new MutationObserver(unstick);
observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });
})();
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '
[Fizz] add additional task reentrancy protections (#36291) · react/react@4b073f4 · GitHub
Skip to content
Commit 4b073f4
Browse files
gnoffgnoff
authored
[Fizz] add additional task reentrancy protections (#36291)
The prior fix for finishedTask reentrancy solved an observed failure.
This change adds a bit of defensive bookeeping to protect against other
theoretical reentrant task finishing that might fail in simlar ways but
where we don't have a clear demonstration of the bug.
1 parent f6fe427 commit 4b073f4
1 file changed
Lines changed: 18 additions & 5 deletions
File tree
‎packages/react-server/src/ReactFizzServer.js‎
Lines changed: 18 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -4438,9 +4438,15 @@ function erroredTask(
44384438
constboundaryRow=boundary.row;
44394439
if(boundaryRow!==null){
44404440
// Unblock the SuspenseListRow that was blocked by this boundary.
4441+
// finishSuspenseListRow → unblockSuspenseListRow → finishedTask reenters
4442+
// and decrements allPendingTasks. Pin the counter above zero so those
4443+
// nested calls can't trip completeAll before this outer frame's own
4444+
// zero check at the end.
4445+
request.allPendingTasks++;
44414446
if(--boundaryRow.pendingTasks===0){
44424447
finishSuspenseListRow(request,boundaryRow);
44434448
}
4449+
request.allPendingTasks--;
44444450
}
44454451

44464452
// Regardless of what happens next, this boundary won't be displayed,
@@ -4955,20 +4961,21 @@ function finishedTask(
49554961
hoistHoistables(boundaryRow.hoistables,boundary.contentState);
49564962
}
49574963
if(!isEligibleForOutlining(request,boundary)){
4958-
// abortTaskSoft reenters finishedTask for each aborted task, which
4959-
// decrements allPendingTasks. Ensure that these reentrant finsihedTask
4960-
// calls do not call `completeAll` too early by forcing the task counter
4961-
// above zero for their duration.
4964+
// abortTaskSoft (below) and finishSuspenseListRow → unblockSuspenseListRow
4965+
// → finishedTask (further below) both reenter finishedTask and decrement
4966+
// allPendingTasks. Pin the counter above zero for the duration of these
4967+
// fan-outs so a nested finishedTask can't observe 0 and call completeAll
4968+
// before this outer call reaches its own zero check.
49624969
request.allPendingTasks++;
49634970
boundary.fallbackAbortableTasks.forEach(abortTaskSoft,request);
49644971
boundary.fallbackAbortableTasks.clear();
4965-
request.allPendingTasks--;
49664972
if(boundaryRow!==null){
49674973
// If we aren't eligible for outlining, we don't have to wait until we flush it.
49684974
if(--boundaryRow.pendingTasks===0){
49694975
finishSuspenseListRow(request,boundaryRow);
49704976
}
49714977
}
4978+
request.allPendingTasks--;
49724979
}
49734980

49744981
if(
@@ -4994,11 +5001,17 @@ function finishedTask(
49945001
boundaryRow.next,
49955002
);
49965003
}
5004+
// finishSuspenseListRow → unblockSuspenseListRow → finishedTask reenters
5005+
// and decrements allPendingTasks. Pin the counter above zero so those
5006+
// nested calls can't trip completeAll before this outer frame's own
5007+
// zero check at the end.
5008+
request.allPendingTasks++;
49975009
if(--boundaryRow.pendingTasks===0){
49985010
// This is really unnecessary since we've already postponed the boundaries but
49995011
// for pairity with other track+finish paths. We might end up using the hoisting.
50005012
finishSuspenseListRow(request,boundaryRow);
50015013
}
5014+
request.allPendingTasks--;
50025015
}
50035016
}
50045017
}else{
0 commit comments
Comments
 (0)

, 'i');
if (__m === '*' || __re.test(location.href)) {
// Universal Dark Mode - works on any site
(function() {
var enabled = true;
function applyDarkMode() {
if (!enabled) return;
// Create style element if it doesn't exist
var style = document.getElementById('universal-dark-mode-style');
if (!style) {
style = document.createElement('style');
style.id = 'universal-dark-mode-style';
document.head.appendChild(style);
}
// Dark mode CSS - inverts colors but preserves images/video
style.textContent = '
/* Invert everything except media */
html {
filter: invert(1) hue-rotate(180deg) !important;
background: #1a1a2e !important;
}
/* Restore images, videos, iframes, canvas */
img, video, iframe, canvas, svg, picture, [style*="background-image"] {
filter: invert(1) hue-rotate(180deg) !important;
}
/* Preserve specific elements that should not be inverted */
.no-dark-mode, .no-dark-mode *,
[data-theme="light"], [data-theme="light"],
.ace_editor, .ace_editor *,
.CodeMirror, .CodeMirror *,
.monaco-editor, .monaco-editor *,
.markdown-body pre, .markdown-body pre *,
.highlight, .highlight *,
pre code, pre code * {
filter: none !important;
}
/* Fix common UI elements */
.modal, .popup, .dropdown-menu, .tooltip, .popover {
filter: invert(1) hue-rotate(180deg) !important;
background: #2d2d44 !important;
border-color: #444 !important;
}
/* Scrollbars */
::-webkit-scrollbar { background: #1a1a2e !important; }
::-webkit-scrollbar-thumb { background: #444 !important; }
::-webkit-scrollbar-thumb:hover { background: #555 !important; }
/* Selection */
::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }
';
}
function removeDarkMode() {
var style = document.getElementById('universal-dark-mode-style');
if (style) style.remove();
}
// Toggle with Alt+Shift+D
document.addEventListener('keydown', function(e) {
if (e.altKey && e.shiftKey && e.key === 'D') {
e.preventDefault();
enabled = !enabled;
if (enabled) {
applyDarkMode();
console.log('[Universal Dark Mode] Enabled');
} else {
removeDarkMode();
console.log('[Universal Dark Mode] Disabled');
}
}
});
// Apply on load
applyDarkMode();
// Re-apply on dynamic content
var observer = new MutationObserver(function(mutations) {
if (enabled && !document.getElementById('universal-dark-mode-style')) {
applyDarkMode();
}
});
observer.observe(document.head, { childList: true });
console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');
})();
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();
[Fizz] add additional task reentrancy protections (#36291) · react/react@4b073f4 · GitHub
Skip to content
Commit 4b073f4
Browse files
gnoffgnoff
authored
[Fizz] add additional task reentrancy protections (#36291)
The prior fix for finishedTask reentrancy solved an observed failure.
This change adds a bit of defensive bookeeping to protect against other
theoretical reentrant task finishing that might fail in simlar ways but
where we don't have a clear demonstration of the bug.
1 parent f6fe427 commit 4b073f4
1 file changed
Lines changed: 18 additions & 5 deletions
File tree
‎packages/react-server/src/ReactFizzServer.js‎
Lines changed: 18 additions & 5 deletions
Original file line numberDiff line numberDiff line change
@@ -4438,9 +4438,15 @@ function erroredTask(
44384438
constboundaryRow=boundary.row;
44394439
if(boundaryRow!==null){
44404440
// Unblock the SuspenseListRow that was blocked by this boundary.
4441+
// finishSuspenseListRow → unblockSuspenseListRow → finishedTask reenters
4442+
// and decrements allPendingTasks. Pin the counter above zero so those
4443+
// nested calls can't trip completeAll before this outer frame's own
4444+
// zero check at the end.
4445+
request.allPendingTasks++;
44414446
if(--boundaryRow.pendingTasks===0){
44424447
finishSuspenseListRow(request,boundaryRow);
44434448
}
4449+
request.allPendingTasks--;
44444450
}
44454451

44464452
// Regardless of what happens next, this boundary won't be displayed,
@@ -4955,20 +4961,21 @@ function finishedTask(
49554961
hoistHoistables(boundaryRow.hoistables,boundary.contentState);
49564962
}
49574963
if(!isEligibleForOutlining(request,boundary)){
4958-
// abortTaskSoft reenters finishedTask for each aborted task, which
4959-
// decrements allPendingTasks. Ensure that these reentrant finsihedTask
4960-
// calls do not call `completeAll` too early by forcing the task counter
4961-
// above zero for their duration.
4964+
// abortTaskSoft (below) and finishSuspenseListRow → unblockSuspenseListRow
4965+
// → finishedTask (further below) both reenter finishedTask and decrement
4966+
// allPendingTasks. Pin the counter above zero for the duration of these
4967+
// fan-outs so a nested finishedTask can't observe 0 and call completeAll
4968+
// before this outer call reaches its own zero check.
49624969
request.allPendingTasks++;
49634970
boundary.fallbackAbortableTasks.forEach(abortTaskSoft,request);
49644971
boundary.fallbackAbortableTasks.clear();
4965-
request.allPendingTasks--;
49664972
if(boundaryRow!==null){
49674973
// If we aren't eligible for outlining, we don't have to wait until we flush it.
49684974
if(--boundaryRow.pendingTasks===0){
49694975
finishSuspenseListRow(request,boundaryRow);
49704976
}
49714977
}
4978+
request.allPendingTasks--;
49724979
}
49734980

49744981
if(
@@ -4994,11 +5001,17 @@ function finishedTask(
49945001
boundaryRow.next,
49955002
);
49965003
}
5004+
// finishSuspenseListRow → unblockSuspenseListRow → finishedTask reenters
5005+
// and decrements allPendingTasks. Pin the counter above zero so those
5006+
// nested calls can't trip completeAll before this outer frame's own
5007+
// zero check at the end.
5008+
request.allPendingTasks++;
49975009
if(--boundaryRow.pendingTasks===0){
49985010
// This is really unnecessary since we've already postponed the boundaries but
49995011
// for pairity with other track+finish paths. We might end up using the hoisting.
50005012
finishSuspenseListRow(request,boundaryRow);
50015013
}
5014+
request.allPendingTasks--;
50025015
}
50035016
}
50045017
}else{
0 commit comments
Comments
 (0)