libgit2-sys 0.12.26+1.3.0

Native bindings to the libgit2 library
Documentation 
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/*
 * 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 "common.h"

#include <git2/trace.h>
#include "buffer.h"

#ifdef GIT_TRACE

struct git_trace_data {
	git_trace_level_t level;
	git_trace_cb callback;
};

extern struct git_trace_data git_trace__data;

GIT_INLINE(void) git_trace__write_fmt(
	git_trace_level_t level,
	const char *fmt,
	va_list ap)
{
	git_trace_cb callback = git_trace__data.callback;
	git_buf message = GIT_BUF_INIT;

	git_buf_vprintf(&message, fmt, ap);

	callback(level, git_buf_cstr(&message));

	git_buf_dispose(&message);
}

#define git_trace_level()	(git_trace__data.level)

GIT_INLINE(void) git_trace(git_trace_level_t level, const char *fmt, ...)
{
	if (git_trace__data.level >= level &&
	    git_trace__data.callback != NULL) {
		va_list ap;

		va_start(ap, fmt);
		git_trace__write_fmt(level, fmt, ap);
		va_end(ap);
	}
}

#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()	((git_trace_level_t)0)
#define git_trace		git_trace__null

#endif

#endif