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Move more time functions to native code. NFC - #16439
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…unction. NFC This test was under `core` instead of `other`. Avoiding the use of `clock_gettime` since I'm about move that to natice code with #16439.
kleisauke
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LGTM! Left a possible further improvement as inline comment.
| // Represents whether emscripten_get_now is guaranteed monotonic; the Date.now | ||
| // implementation is not :( | ||
| $nowIsMonotonic__internal: true, | ||
| #if MIN_IE_VERSION <= 9 || MIN_FIREFOX_VERSION <= 14 || MIN_CHROME_VERSION <= 23 || MIN_SAFARI_VERSION <= 80400 // https://caniuse.com/#feat=high-resolution-time |
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This conditional directive is duplicated three times in this file. As an possible follow-up, perhaps we could make a performance.now() polyfill in src/polyfill that calls Date.now() - nowOffset if unsupported (e.g. https://gist.github.com/paulirish/5438650)? Then we could just call that polyfill throughout this file.
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Sure! Feel free to propose a PR.. or open a bug to refactor that.
I'm pretty this is going to be codesize win for a lot of codebases even though its not showing up in our (minimal) codesize tests.
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This brings us back in line with upstream musl. The change to 32-bit was only recently made in #16966. The reason we made this change was made was because we had certain C library calls that were implemented in JS that returned `time_t`. Since returning 64-bit values from JS functions is not always easy (we don't always have WASM_BIGINT available) that simplest solution was to define `time_t` to 32-bit which doesn't have issues at the JS boundary. However, in the intervening time many of the `time_t`-returning function have been moved into native code (See #16606 and #16439) with only two remaining: _mktime_js and _timegm_js. So this change redefines just those two functions to return `int` while keeping `time_t` itself as 64-bit. Fixes: #17393
sbc100 added a commit
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Jul 8, 2022
This brings us back in line with upstream musl. The change to 32-bit was only recently made in #16966. The reason we made this change was made was because we had certain C library calls that were implemented in JS that returned `time_t`. Since returning 64-bit values from JS functions is not always easy (we don't always have WASM_BIGINT available) that simplest solution was to define `time_t` to 32-bit which doesn't have issues at the JS boundary. However, in the intervening time many of the `time_t`-returning function have been moved into native code (See #16606 and #16439) with only two remaining: _mktime_js and _timegm_js. So this change redefines just those two functions to return `int` while keeping `time_t` itself as 64-bit. Fixes: #17393
sbc100 added a commit
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Jul 8, 2022
This brings us back in line with upstream musl. The change to 32-bit was only recently made in #16966. The reason we made this change was made was because we had certain C library calls that were implemented in JS that returned `time_t`. Since returning 64-bit values from JS functions is not always easy (we don't always have WASM_BIGINT available) that simplest solution was to define `time_t` to 32-bit which doesn't have issues at the JS boundary. However, in the intervening time many of the `time_t`-returning function have been moved into native code (See #16606 and #16439) with only two remaining: _mktime_js and _timegm_js. So this change redefines just those two functions to return `int` while keeping `time_t` itself as 64-bit. Fixes: #17393
sbc100 added a commit
that referenced
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Jul 8, 2022
This brings us back in line with upstream musl. The change to 32-bit was only recently made in #16966. The reason we made this change was made was because we had certain C library calls that were implemented in JS that returned `time_t`. Since returning 64-bit values from JS functions is not always easy (we don't always have WASM_BIGINT available) that simplest solution was to define `time_t` to 32-bit which doesn't have issues at the JS boundary. However, in the intervening time many of the `time_t`-returning function have been moved into native code (See #16606 and #16439) with only two remaining: _mktime_js and _timegm_js. So this change redefines just those two functions to return `int` while keeping `time_t` itself as 64-bit. Fixes: #17393
sbc100 added a commit
that referenced
this pull request
Jul 8, 2022
This brings us back in line with upstream musl. The change to 32-bit was only recently made in #16966. The reason we made this change was made was because we had certain C library calls that were implemented in JS that returned `time_t`. Since returning 64-bit values from JS functions is not always easy (we don't always have WASM_BIGINT available) that simplest solution was to define `time_t` to 32-bit which doesn't have issues at the JS boundary. However, in the intervening time many of the `time_t`-returning function have been moved into native code (See #16606 and #16439) with only two remaining: _mktime_js and _timegm_js. So this change redefines just those two functions to return `int` while keeping `time_t` itself as 64-bit. Fixes: #17393
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Jul 22, 2022
This brings us back in line with upstream musl. The change to 32-bit was only recently made in emscripten-core#16966. The reason we made this change was made was because we had certain C library calls that were implemented in JS that returned `time_t`. Since returning 64-bit values from JS functions is not always easy (we don't always have WASM_BIGINT available) that simplest solution was to define `time_t` to 32-bit which doesn't have issues at the JS boundary. However, in the intervening time many of the `time_t`-returning function have been moved into native code (See emscripten-core#16606 and emscripten-core#16439) with only two remaining: _mktime_js and _timegm_js. So this change redefines just those two functions to return `int` while keeping `time_t` itself as 64-bit. Fixes: emscripten-core#17393
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I'm pretty this is going to be codesize win for a lot of
codebases even though its not showing up in our (minimal)
codesize tests.
Inspired by #16401