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[wasm] Include _CFIsMainThread for WASI platform #5292

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[wasm] Include _CFIsMainThread for WASI platform #5292

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4 changes: 2 additions & 2 deletions Sources/CoreFoundation/CFPlatform.c
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Original file line number Diff line number Diff line change
Expand Up @@ -306,9 +306,9 @@ const char *_CFProcessPath(void) {
#endif
}

#if TARGET_OS_MAC || TARGET_OS_WIN32 || TARGET_OS_BSD
#if TARGET_OS_MAC || TARGET_OS_WIN32 || TARGET_OS_BSD || TARGET_OS_WASI
CF_CROSS_PLATFORM_EXPORT Boolean _CFIsMainThread(void) {
#if defined(__OpenBSD__) || defined(__FreeBSD__)
#if defined(__OpenBSD__) || defined(__FreeBSD__) || TARGET_OS_WASI
return pthread_equal(pthread_self(), _CFMainPThread) != 0;
#else
return pthread_main_np() == 1;
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2 changes: 0 additions & 2 deletions Sources/CoreFoundation/CFRuntime.c
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Expand Up @@ -1195,8 +1195,6 @@ void __CFInitialize(void) {
#elif _POSIX_THREADS
// move this next line up into the #if above after Foundation gets off this symbol. Also: <rdar://problem/39622745> Stop using _CFMainPThread
_CFMainPThread = pthread_self();
#elif TARGET_OS_WASI
_CFMainPThread = kNilPthreadT;
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@kateinoigakukun kateinoigakukun Nov 26, 2025

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_POSIX_THREADS is now defined and pthread_self is available in wasi-libc, so this line won't be reachable

#else
#error Dont know how to get the main thread on this platform
#endif
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