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sync: fix futexes on wasm

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This commit is contained in:
Laytan Laats
2024-12-05 19:00:45 +01:00
parent d452d37b93
commit ad438f418d
1 changed files with 5 additions and 15 deletions
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20
core/sync/futex_wasm.odin
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@@ -12,8 +12,8 @@ _futex_wait :: proc "contextless" (f: ^Futex, expected: u32) -> bool {
when !intrinsics.has_target_feature("atomics") {
panic_contextless("usage of `core:sync` requires the `-target-feature:\"atomics\"` or a `-microarch` that supports it")
} else {
s := intrinsics.wasm_memory_atomic_wait32((^u32)(f), expected, -1)
return s != 0
intrinsics.wasm_memory_atomic_wait32((^u32)(f), expected, -1)
return true
}
}
@@ -22,7 +22,7 @@ _futex_wait_with_timeout :: proc "contextless" (f: ^Futex, expected: u32, durati
panic_contextless("usage of `core:sync` requires the `-target-feature:\"atomics\"` or a `-microarch` that supports it")
} else {
s := intrinsics.wasm_memory_atomic_wait32((^u32)(f), expected, i64(duration))
return s != 0
return s != 2
}
}
@@ -30,12 +30,7 @@ _futex_signal :: proc "contextless" (f: ^Futex) {
when !intrinsics.has_target_feature("atomics") {
panic_contextless("usage of `core:sync` requires the `-target-feature:\"atomics\"` or a `-microarch` that supports it")
} else {
loop: for {
s := intrinsics.wasm_memory_atomic_notify32((^u32)(f), 1)
if s >= 1 {
return
}
}
intrinsics.wasm_memory_atomic_notify32((^u32)(f), 1)
}
}
@@ -43,12 +38,7 @@ _futex_broadcast :: proc "contextless" (f: ^Futex) {
when !intrinsics.has_target_feature("atomics") {
panic_contextless("usage of `core:sync` requires the `-target-feature:\"atomics\"` or a `-microarch` that supports it")
} else {
loop: for {
s := intrinsics.wasm_memory_atomic_notify32((^u32)(f), ~u32(0))
if s >= 0 {
return
}
}
intrinsics.wasm_memory_atomic_notify32((^u32)(f), max(u32))
}
}