/*

 * Copyright (C) the libgit2 contributors. All rights reserved.

 *

 * This file is part of libgit2, distributed under the GNU GPL v2 with

 * a Linking Exception. For full terms see the included COPYING file.

 */

#ifndef INCLUDE_trace_h__

#define INCLUDE_trace_h__

#include <git2/trace.h>

#include "buffer.h"

#ifdef GIT_TRACE

struct git_trace_data {

	git_trace_level_t level;

	git_trace_callback callback;

};

extern struct git_trace_data git_trace__data;

GIT_INLINE(void) git_trace__write_fmt(

	git_trace_level_t level,

	const char *fmt, ...)

{

	git_trace_callback callback = git_trace__data.callback;

	git_buf message = GIT_BUF_INIT;

	va_list ap;

	va_start(ap, fmt);

	git_buf_vprintf(&message, fmt, ap);

	va_end(ap);

	callback(level, git_buf_cstr(&message));

	git_buf_free(&message);

}

#define git_trace_level()		(git_trace__data.level)

#define git_trace(l, ...)		{ \

									if (git_trace__data.level >= l && \

										git_trace__data.callback != NULL) { \

										git_trace__write_fmt(l, __VA_ARGS__); \

									} \

								}

#else

GIT_INLINE(void) git_trace__null(

	git_trace_level_t level,

	const char *fmt, ...)

{

	GIT_UNUSED(level);

	GIT_UNUSED(fmt);

}

#define git_trace_level()		((void)0)

#define git_trace			git_trace__null

#endif

#endif