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Add support for WASI in CFInternal.h #2872

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Sep 15, 2020
Merged

Add support for WASI in CFInternal.h #2872

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21 changes: 15 additions & 6 deletions CoreFoundation/Base.subproj/CFInternal.h
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Original file line number Diff line number Diff line change
Expand Up @@ -104,7 +104,7 @@ CF_EXTERN_C_BEGIN
#include <stdatomic.h>
#include <Block.h>

#if TARGET_OS_MAC || TARGET_OS_LINUX || TARGET_OS_BSD
#if TARGET_OS_MAC || TARGET_OS_LINUX || TARGET_OS_BSD || TARGET_OS_WASI

#if TARGET_OS_MAC || (TARGET_OS_BSD && !defined(__OpenBSD__)) || TARGET_OS_ANDROID
#include <xlocale.h>
Expand All @@ -113,7 +113,7 @@ CF_EXTERN_C_BEGIN
#include <sys/time.h>
#include <signal.h>
#include <stdio.h>
#endif // TARGET_OS_MAC || TARGET_OS_LINUX || TARGET_OS_BSD
#endif // TARGET_OS_MAC || TARGET_OS_LINUX || TARGET_OS_BSD || TARGET_OS_WASI

#if __has_include(<unistd.h>)
#include <unistd.h>
Expand Down Expand Up @@ -317,10 +317,18 @@ static inline void __CFRuntimeSetValue(CFTypeRef cf, uint8_t n1, uint8_t n2, uin
__CFInfoType info = atomic_load(&(((CFRuntimeBase *)cf)->_cfinfoa));
__CFInfoType newInfo;
__CFInfoType mask = __CFInfoMask(n1, n2);

#if !TARGET_OS_WASI
do {
#endif
// maybe don't need to do the negation part because the right side promises that we are not going to touch the rest of the word
newInfo = (info & ~mask) | ((x << n2) & mask);
// Atomics are not supported on WASI, see https://bugs.swift.org/browse/SR-12097 for more details
#if !TARGET_OS_WASI
} while (!atomic_compare_exchange_weak(&(((CFRuntimeBase *)cf)->_cfinfoa), &info, newInfo));
#else
((CFRuntimeBase *)cf)->_cfinfoa = newInfo;
#endif
}

/// Set a flag in a CFTypeRef info bitfield.
Expand Down Expand Up @@ -1024,7 +1032,7 @@ CF_INLINE const char *CFPathRelativeToAppleFrameworksRoot(const char *path, Bool
enum {
DISPATCH_QUEUE_OVERCOMMIT = 0x2ull,
};
#endif
#endif // __has_include(<dispatch/private.h>)

#if TARGET_OS_LINUX || TARGET_OS_WIN32
#define QOS_CLASS_USER_INITIATED DISPATCH_QUEUE_PRIORITY_HIGH
Expand All @@ -1040,7 +1048,7 @@ CF_INLINE long qos_class_self() {
return QOS_CLASS_DEFAULT;
}

#endif
#endif // TARGET_OS_LINUX || TARGET_OS_WIN32

// Returns a generic dispatch queue for when you want to just throw some work
// into the concurrent pile to execute, and don't care about specifics except
Expand All @@ -1064,12 +1072,13 @@ CF_INLINE dispatch_queue_t __CFDispatchQueueGetGenericBackground(void) {
return dispatch_get_global_queue(QOS_CLASS_UTILITY, DISPATCH_QUEUE_OVERCOMMIT);
}

#endif
CF_PRIVATE dispatch_data_t _CFDataCreateDispatchData(CFDataRef data); //avoids copying in most cases

#endif // __HAS_DISPATCH__

CF_PRIVATE CFStringRef _CFStringCopyBundleUnloadingProtectedString(CFStringRef str);

CF_PRIVATE uint8_t *_CFDataGetBytePtrNonObjC(CFDataRef data);
CF_PRIVATE dispatch_data_t _CFDataCreateDispatchData(CFDataRef data); //avoids copying in most cases

// Use this for functions that are intended to be breakpoint hooks. If you do not, the compiler may optimize them away.
// Based on: BREAKPOINT_FUNCTION in objc-os.h
Expand Down