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[wasm] Port ProcessInfo for WASI platform #4891

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Merged
merged 1 commit into from
Mar 1, 2024
Merged

[wasm] Port ProcessInfo for WASI platform #4891

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46 changes: 40 additions & 6 deletions CoreFoundation/Base.subproj/CFPlatform.c
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -103,7 +103,6 @@ CF_PRIVATE const wchar_t *_CFDLLPath(void) {
}
#endif // TARGET_OS_WIN32

#if !TARGET_OS_WASI
static const char *__CFProcessPath = NULL;
static const char *__CFprogname = NULL;

Expand Down Expand Up @@ -186,6 +185,31 @@ const char *_CFProcessPath(void) {
__CFprogname = __CFProcessPath;
}
return __CFProcessPath;
#elif TARGET_OS_WASI
__wasi_errno_t err;
size_t argc;
size_t argv_buf_size;
err = __wasi_args_sizes_get(&argc, &argv_buf_size);
if (err != 0) {
__CFProcessPath = "";
__CFprogname = __CFProcessPath;
return __CFProcessPath;
}
char *argv_buf = malloc(argv_buf_size);
char **argv = calloc(argc, sizeof(char *));
err = __wasi_args_get((uint8_t **)argv, (uint8_t *)argv_buf);
if (err != 0) {
__CFProcessPath = "";
__CFprogname = __CFProcessPath;
free(argv_buf);
free(argv);
return __CFProcessPath;
}
_CFSetProgramNameFromPath(argv[0]);
free(argv_buf);
free(argv);
return __CFProcessPath;

#else // TARGET_OS_BSD
char *argv0 = NULL;

Expand Down Expand Up @@ -248,7 +272,6 @@ const char *_CFProcessPath(void) {
return __CFProcessPath;
#endif
}
#endif // TARGET_OS_WASI

#if TARGET_OS_MAC || TARGET_OS_WIN32 || TARGET_OS_BSD
CF_CROSS_PLATFORM_EXPORT Boolean _CFIsMainThread(void) {
Expand All @@ -273,7 +296,6 @@ Boolean _CFIsMainThread(void) {
}
#endif // TARGET_OS_LINUX

#if !TARGET_OS_WASI
CF_PRIVATE CFStringRef _CFProcessNameString(void) {
static CFStringRef __CFProcessNameString = NULL;
if (!__CFProcessNameString) {
Expand All @@ -292,7 +314,6 @@ CF_PRIVATE CFStringRef _CFProcessNameString(void) {
}
return __CFProcessNameString;
}
#endif // !TARGET_OS_WASI

#if TARGET_OS_MAC || TARGET_OS_LINUX || TARGET_OS_BSD

Expand Down Expand Up @@ -387,16 +408,20 @@ static CFURLRef _CFCopyHomeDirURLForUser(const char *username, bool fallBackToHo

#endif

#if !TARGET_OS_WASI
#define CFMaxHostNameLength 256
#define CFMaxHostNameSize (CFMaxHostNameLength+1)

CF_PRIVATE CFStringRef _CFStringCreateHostName(void) {
#if TARGET_OS_WASI
// WASI doesn't have a concept of a hostname
return CFSTR("");
#else
char myName[CFMaxHostNameSize];

// return @"" instead of nil a la CFUserName() and Ali Ozer
if (0 != gethostname(myName, CFMaxHostNameSize)) return CFSTR("");
return CFStringCreateWithCString(kCFAllocatorSystemDefault, myName, kCFPlatformInterfaceStringEncoding);
#endif
}

/* These are sanitized versions of the above functions. We might want to eliminate the above ones someday.
Expand Down Expand Up @@ -433,6 +458,8 @@ CF_EXPORT CFStringRef CFCopyUserName(void) {
result = CFStringCreateWithCString(kCFAllocatorSystemDefault, cname, kCFPlatformInterfaceStringEncoding);
}
}
#elif TARGET_OS_WASI
// WASI does not have user concept
#else
#error "Please add an implementation for CFCopyUserName() that copies the account username"
#endif
Expand Down Expand Up @@ -462,6 +489,8 @@ CF_CROSS_PLATFORM_EXPORT CFStringRef CFCopyFullUserName(void) {
GetUserNameExW(NameDisplay, (LPWSTR)wszBuffer, &ulLength);

result = CFStringCreateWithCharacters(kCFAllocatorSystemDefault, (UniChar *)wszBuffer, ulLength);
#elif TARGET_OS_WASI
// WASI does not have user concept
#else
#error "Please add an implementation for CFCopyFullUserName() that copies the full (display) user name"
#endif
Expand Down Expand Up @@ -528,6 +557,9 @@ CFURLRef CFCopyHomeDirectoryURL(void) {
if (testPath) CFRelease(testPath);

return retVal;
#elif TARGET_OS_WASI
// WASI does not have user concept
return NULL;
#else
#error Dont know how to compute users home directories on this platform
#endif
Expand Down Expand Up @@ -659,6 +691,9 @@ CF_EXPORT CFURLRef CFCopyHomeDirectoryURLForUser(CFStringRef uName) {
CFAllocatorDeallocate(kCFAllocatorSystemDefault, pwszUserName);

return url;
#elif TARGET_OS_WASI
// WASI does not have user concept
return NULL;
#else
#error Dont know how to compute users home directories on this platform
#endif
Expand All @@ -667,7 +702,6 @@ CF_EXPORT CFURLRef CFCopyHomeDirectoryURLForUser(CFStringRef uName) {

#undef CFMaxHostNameLength
#undef CFMaxHostNameSize
#endif // !TARGET_OS_WASI

#if TARGET_OS_WIN32
CF_INLINE CFIndex strlen_UniChar(const UniChar* p) {
Expand Down
6 changes: 1 addition & 5 deletions CoreFoundation/Base.subproj/CFPriv.h
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Original file line number Diff line number Diff line change
Expand Up @@ -57,19 +57,17 @@ CF_EXTERN_C_BEGIN

CF_EXPORT void _CFRuntimeSetCFMPresent(void *a);

#if !TARGET_OS_WASI
CF_EXPORT const char *_CFProcessPath(void);
CF_EXPORT const char **_CFGetProcessPath(void);
CF_EXPORT const char **_CFGetProgname(void);

#if !TARGET_OS_WIN32
#if !TARGET_OS_WIN32 && !TARGET_OS_WASI
#include <sys/types.h>

CF_EXPORT void _CFGetUGIDs(uid_t *euid, gid_t *egid);
CF_EXPORT uid_t _CFGetEUID(void);
CF_EXPORT uid_t _CFGetEGID(void);
#endif
#endif

#if (TARGET_OS_MAC && !(TARGET_OS_IPHONE || TARGET_OS_LINUX))
CF_EXPORT void _CFRunLoopSetCurrent(CFRunLoopRef rl);
Expand Down Expand Up @@ -166,7 +164,6 @@ CF_EXPORT Boolean _CFStringGetFileSystemRepresentation(CFStringRef string, UInt8
/* If this is publicized, we might need to create a GetBytesPtr type function as well. */
CF_EXPORT CFStringRef _CFStringCreateWithBytesNoCopy(CFAllocatorRef alloc, const UInt8 *bytes, CFIndex numBytes, CFStringEncoding encoding, Boolean externalFormat, CFAllocatorRef contentsDeallocator);

#if !TARGET_OS_WASI
/* These return NULL on MacOS 8 */
// This one leaks the returned string in order to be thread-safe.
// CF cannot help you in this matter if you continue to use this SPI.
Expand All @@ -178,7 +175,6 @@ CFStringRef CFCopyUserName(void);

CF_EXPORT
CFURLRef CFCopyHomeDirectoryURLForUser(CFStringRef uName); /* Pass NULL for the current user's home directory */
#endif


/*
Expand Down