static void vprintf_stderr_common(const char* format, va_list args)
{
#if USE(CF) && !OS(WINDOWS)
if (strstr(format, "%@")) {
CFStringRef cfFormat = CFStringCreateWithCString(NULL, format, kCFStringEncodingUTF8);
#if COMPILER(CLANG)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wformat-nonliteral"
#endif
CFStringRef str = CFStringCreateWithFormatAndArguments(NULL, NULL, cfFormat, args);
#if COMPILER(CLANG)
#pragma clang diagnostic pop
#endif
CFIndex length = CFStringGetMaximumSizeForEncoding(CFStringGetLength(str), kCFStringEncodingUTF8);
char* buffer = (char*)malloc(length + 1);
CFStringGetCString(str, buffer, length, kCFStringEncodingUTF8);
logToStderr(buffer);
free(buffer);
CFRelease(str);
CFRelease(cfFormat);
return;
}
#if USE(APPLE_SYSTEM_LOG)
va_list copyOfArgs;
va_copy(copyOfArgs, args);
asl_vlog(0, 0, ASL_LEVEL_NOTICE, format, copyOfArgs);
va_end(copyOfArgs);
#endif
// Fall through to write to stderr in the same manner as other platforms.
#elif HAVE(ISDEBUGGERPRESENT)
if (IsDebuggerPresent()) {
size_t size = 1024;
do {
char* buffer = (char*)malloc(size);
if (buffer == NULL)
break;
if (vsnprintf(buffer, size, format, args) != -1) {
OutputDebugStringA(buffer);
free(buffer);
break;
}
free(buffer);
size *= 2;
} while (size > 1024);
}
#endif
vfprintf(stderr, format, args);
}
void WTFLog(WTFLogChannel* channel, const char* format, ...)
{
if (channel->state == WTFLogChannelOff)
return;
if (channel->state == WTFLogChannelOn) {
va_list args;
va_start(args, format);
vprintf_stderr_with_trailing_newline(format, args);
va_end(args);
return;
}
ASSERT(channel->state == WTFLogChannelOnWithAccumulation);
va_list args;
va_start(args, format);
#if COMPILER(CLANG)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wformat-nonliteral"
#endif
String loggingString = String::format(format, args);
#if COMPILER(CLANG)
#pragma clang diagnostic pop
#endif
va_end(args);
if (!loggingString.endsWith('\n'))
loggingString.append('\n');
loggingAccumulator().accumulate(loggingString);
logToStderr(loggingString.utf8().data());
}
