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Merge pull request #4103 from laytan/wait-shared-on-macos-10-15

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UL_COMPARE_AND_WAIT_SHARED is macOS 10.15+
This commit is contained in:
Laytan
2024-08-18 19:38:52 +02:00
committed by GitHub
parent a51b9c6fb0 b7b3ada3b1
commit bb3f848b4a
1 changed files with 27 additions and 3 deletions
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30
src/threading.cpp
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@@ -839,8 +839,16 @@ gb_internal void futex_signal(Futex *f) {
}
} else {
#endif
// UL_COMPARE_AND_WAIT_SHARED is only available on macOS 10.15+
int WAIT_FLAG;
if (__builtin_available(macOS 10.15, *)) {
WAIT_FLAG = UL_COMPARE_AND_WAIT_SHARED;
} else {
WAIT_FLAG = UL_COMPARE_AND_WAIT;
}
for (;;) {
int ret = __ulock_wake(UL_COMPARE_AND_WAIT_SHARED | ULF_NO_ERRNO, f, 0);
int ret = __ulock_wake(WAIT_FLAG | ULF_NO_ERRNO, f, 0);
if (ret >= 0) {
return;
}
@@ -875,9 +883,17 @@ gb_internal void futex_broadcast(Futex *f) {
}
} else {
#endif
// UL_COMPARE_AND_WAIT_SHARED is only available on macOS 10.15+
int WAIT_FLAG;
if (__builtin_available(macOS 10.15, *)) {
WAIT_FLAG = UL_COMPARE_AND_WAIT_SHARED;
} else {
WAIT_FLAG = UL_COMPARE_AND_WAIT;
}
for (;;) {
enum { ULF_WAKE_ALL = 0x00000100 };
int ret = __ulock_wake(UL_COMPARE_AND_WAIT_SHARED | ULF_NO_ERRNO | ULF_WAKE_ALL, f, 0);
int ret = __ulock_wake(WAIT_FLAG | ULF_NO_ERRNO | ULF_WAKE_ALL, f, 0);
if (ret == 0) {
return;
}
@@ -915,8 +931,16 @@ gb_internal void futex_wait(Futex *f, Footex val) {
}
} else {
#endif
// UL_COMPARE_AND_WAIT_SHARED is only available on macOS 10.15+
int WAIT_FLAG;
if (__builtin_available(macOS 10.15, *)) {
WAIT_FLAG = UL_COMPARE_AND_WAIT_SHARED;
} else {
WAIT_FLAG = UL_COMPARE_AND_WAIT;
}
for (;;) {
int ret = __ulock_wait(UL_COMPARE_AND_WAIT_SHARED | ULF_NO_ERRNO, f, val, 0);
int ret = __ulock_wait(WAIT_FLAG | ULF_NO_ERRNO, f, val, 0);
if (ret >= 0) {
if (*f != val) {
return;