Use 64 bits for time_t #17401
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Use 64 bits for time_t #17401
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kripken
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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
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Co-authored-by: Alon Zakai <azakai@google.com>
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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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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 JSfunctions is not always easy (we don't always have WASM_BIGINT
available) that simplest solution was to define
time_tto 32-bit whichdoesn't have issues at the JS boundary.
However, in the intervening time many of the
time_t-returning functionhave 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
intwhile keepingtime_titself as64-bit.
Fixes: #17393