myvtm/Other/unix/libaudioframework/audiolog.c

#include "precompile.h"
#include "audiolog.h"

#include <stdlib.h>

#ifdef _WIN32
static void __stdcall default_log_func(int level, const char* s)
#else
static void __attribute__((__stdcall)) default_log_func(int level, const char* s)
#endif
{
	OutputDebugStringA(s);
}

static int g_log_level = 0;
static audio_log_func g_log_func = &default_log_func;

static int can_log(int level)
{
	return level >= g_log_level && g_log_func;
}

void audio_log_set_level(int level)
{
	g_log_level = level;
}

audio_log_func audio_log_set_func(audio_log_func func)
{
	audio_log_func old = g_log_func;
	g_log_func = func;
	return old;
}

void audio_log(int level, const char *str)
{
	if (can_log(level)) {
		(*g_log_func)(level, str);
	}
}

void audio_log_v(int level, const char *fmt, ...)
{
	int rc;
	va_list arg;

	if (can_log(level)) {
		va_start(arg, fmt);
		rc = vsnprintf(NULL, 0, fmt, arg);
		if (rc > 0) {
			char *p = malloc(rc + 1);
			if (p) {
				vsprintf(p, fmt, arg);
				audio_log(level, p);
				free(p);
			}
		}
		va_end(arg);
	}
}