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/*
* Copyright © 2020 Endless Mobile, Inc.
*
* SPDX-License-Identifier: LGPL-2.1-or-later
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
* Author: Philip Withnall <withnall@endlessm.com>
*/
#pragma once
#ifdef HAVE_SYSPROF
#include <sysprof-capture.h>
#endif
#include "glib.h"
G_BEGIN_DECLS
/*
* G_TRACE_CURRENT_TIME:
*
* Get the current time, in nanoseconds since the tracing epoch. This (and only
* this) is suitable for passing to tracing functions like g_trace_mark(). It is
* not suitable for other timekeeping.
*
* The tracing epoch is implementation defined, but is guaranteed to be
* unchanged within the lifetime of each thread. It is not comparable across
* threads or process instances.
*
* If tracing support is disabled, this evaluates to `0`.
*
* Since: 2.66
*/
#ifdef HAVE_SYSPROF
#define G_TRACE_CURRENT_TIME SYSPROF_CAPTURE_CURRENT_TIME
#else
#define G_TRACE_CURRENT_TIME 0
#endif
void (g_trace_mark) (gint64 begin_time_nsec,
gint64 duration_nsec,
const gchar *group,
const gchar *name,
const gchar *message_format,
...) G_GNUC_PRINTF (5, 6);
#ifndef HAVE_SYSPROF
/* Optimise the whole call out */
#if defined(G_HAVE_ISO_VARARGS)
#define g_trace_mark(b, d, g, n, m, ...)
#elif defined(G_HAVE_GNUC_VARARGS)
#define g_trace_mark(b, d, g, n, m...)
#else
/* no varargs macro support; the call will have to be optimised out by the compiler */
#endif
#endif
guint (g_trace_define_int64_counter) (const char *group,
const char *name,
const char *description);
void (g_trace_set_int64_counter) (guint id,
gint64 value);
#ifndef HAVE_SYSPROF
#define g_trace_define_int64_counter(g, n, d) ((guint) -1)
#define g_trace_set_int64_counter(i,v)
#endif
G_END_DECLS
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