Commit 4486ac14 authored by Philip Withnall's avatar Philip Withnall

Merge branch 'sysprof' into 'master'

Add initial sysprof support

See merge request !1551
parents 1ee22d0a b08bd04a
Pipeline #194623 failed with stages
in 10 minutes and 30 seconds
......@@ -22,6 +22,7 @@ if get_option('gtk_doc')
'gprintfint.h',
'gmirroringtable.h',
'gscripttable.h',
'gtrace-private.h',
'glib-mirroring-tab',
'gnulib',
'pcre',
......
......@@ -87,6 +87,7 @@
* GTask *task;
*
* task = g_task_new (initable, cancellable, callback, user_data);
* g_task_set_name (task, G_STRFUNC);
*
* switch (self->priv->state)
* {
......
......@@ -632,6 +632,7 @@ g_dbus_interface_method_dispatch_helper (GDBusInterfaceSkeleton *interface
task = g_task_new (interface, NULL, NULL, NULL);
g_task_set_source_tag (task, g_dbus_interface_method_dispatch_helper);
g_task_set_name (task, "[gio] D-Bus interface method dispatch");
g_task_set_task_data (task, data, (GDestroyNotify) dispatch_data_unref);
g_task_run_in_thread (task, dispatch_in_thread_func);
g_object_unref (task);
......
......@@ -183,6 +183,7 @@ _g_socket_read_with_control_messages (GSocket *socket,
task = g_task_new (socket, cancellable, callback, user_data);
g_task_set_source_tag (task, _g_socket_read_with_control_messages);
g_task_set_name (task, "[gio] D-Bus read");
g_task_set_task_data (task, data, (GDestroyNotify) read_with_control_data_free);
if (g_socket_condition_check (socket, G_IO_IN))
......@@ -1123,6 +1124,7 @@ write_message_async (GDBusWorker *worker,
{
data->task = g_task_new (NULL, NULL, callback, user_data);
g_task_set_source_tag (data->task, write_message_async);
g_task_set_name (data->task, "[gio] D-Bus write message");
data->total_written = 0;
write_message_continue_writing (data);
}
......
......@@ -1631,6 +1631,7 @@ async_initable_init_second_async (GAsyncInitable *initable,
task = g_task_new (proxy, cancellable, callback, user_data);
g_task_set_source_tag (task, async_initable_init_second_async);
g_task_set_name (task, "[gio] D-Bus proxy init");
g_task_set_priority (task, io_priority);
/* Check name ownership asynchronously - possibly also start the service */
......@@ -1802,6 +1803,7 @@ async_initable_init_async (GAsyncInitable *initable,
task = g_task_new (proxy, cancellable, callback, user_data);
g_task_set_source_tag (task, async_initable_init_async);
g_task_set_name (task, "[gio] D-Bus proxy init");
g_task_set_priority (task, io_priority);
if (proxy->priv->bus_type != G_BUS_TYPE_NONE)
......@@ -2649,6 +2651,7 @@ g_dbus_proxy_call_internal (GDBusProxy *proxy,
my_callback = (GAsyncReadyCallback) reply_cb;
task = g_task_new (proxy, cancellable, callback, user_data);
g_task_set_source_tag (task, g_dbus_proxy_call_internal);
g_task_set_name (task, "[gio] D-Bus proxy call");
}
else
{
......
......@@ -576,6 +576,7 @@ lookup_by_name_async_real (GResolver *resolver,
task = g_task_new (resolver, cancellable, callback, user_data);
g_task_set_source_tag (task, lookup_by_name_async_real);
g_task_set_name (task, "[gio] resolver lookup");
if (addrs)
g_task_return_pointer (task, addrs, (GDestroyNotify) g_resolver_free_addresses);
else
......@@ -595,6 +596,7 @@ lookup_by_name_async_real (GResolver *resolver,
_("Invalid hostname"));
task = g_task_new (resolver, cancellable, callback, user_data);
g_task_set_source_tag (task, lookup_by_name_async_real);
g_task_set_name (task, "[gio] resolver lookup");
g_task_return_error (task, error);
g_object_unref (task);
return;
......@@ -613,6 +615,7 @@ lookup_by_name_async_real (GResolver *resolver,
_("%s not implemented"), "lookup_by_name_with_flags_async");
task = g_task_new (resolver, cancellable, callback, user_data);
g_task_set_source_tag (task, lookup_by_name_async_real);
g_task_set_name (task, "[gio] resolver lookup");
g_task_return_error (task, error);
g_object_unref (task);
}
......
......@@ -759,6 +759,7 @@ g_task_report_error (gpointer source_object,
task = g_task_new (source_object, NULL, callback, callback_data);
g_task_set_source_tag (task, source_tag);
g_task_set_name (task, G_STRFUNC);
g_task_return_error (task, error);
g_object_unref (task);
}
......@@ -982,8 +983,8 @@ g_task_set_return_on_cancel (GTask *task,
* Since: 2.36
*/
void
g_task_set_source_tag (GTask *task,
gpointer source_tag)
(g_task_set_source_tag) (GTask *task,
gpointer source_tag)
{
g_return_if_fail (G_IS_TASK (task));
......@@ -1241,6 +1242,7 @@ g_task_return (GTask *task,
GTaskReturnType type)
{
GSource *source;
gchar *source_name = NULL;
if (type != G_TASK_RETURN_FROM_THREAD)
task->ever_returned = TRUE;
......@@ -1289,7 +1291,10 @@ g_task_return (GTask *task,
/* Otherwise, complete in the next iteration */
source = g_idle_source_new ();
g_source_set_name (source, "[gio] complete_in_idle_cb");
source_name = g_strdup_printf ("[gio] %s complete_in_idle_cb",
(task->name != NULL) ? task->name : "(unnamed)");
g_source_set_name (source, source_name);
g_free (source_name);
g_task_attach_source (task, source, complete_in_idle_cb);
g_source_unref (source);
}
......
......@@ -78,6 +78,14 @@ GLIB_AVAILABLE_IN_2_60
void g_task_set_name (GTask *task,
const gchar *name);
/* Macro wrapper to set the task name when setting the source tag. */
#define g_task_set_source_tag(task, tag) G_STMT_START { \
GTask *_task = (task); \
(g_task_set_source_tag) (_task, tag); \
if (g_task_get_name (_task) == NULL) \
g_task_set_name (_task, G_STRINGIFY (tag)); \
} G_STMT_END
GLIB_AVAILABLE_IN_2_36
gpointer g_task_get_source_object (GTask *task);
GLIB_AVAILABLE_IN_2_36
......
......@@ -187,6 +187,7 @@ lookup_by_name (GResolver *resolver,
data = lookup_data_new (hostname, AF_UNSPEC);
task = g_task_new (resolver, cancellable, NULL, NULL);
g_task_set_source_tag (task, lookup_by_name);
g_task_set_name (task, "[gio] resolver lookup");
g_task_set_task_data (task, data, (GDestroyNotify)lookup_data_free);
g_task_set_return_on_cancel (task, TRUE);
g_task_run_in_thread_sync (task, do_lookup_by_name);
......@@ -228,6 +229,7 @@ lookup_by_name_with_flags (GResolver *resolver,
data = lookup_data_new (hostname, AF_UNSPEC);
task = g_task_new (resolver, cancellable, NULL, NULL);
g_task_set_source_tag (task, lookup_by_name_with_flags);
g_task_set_name (task, "[gio] resolver lookup");
g_task_set_task_data (task, data, (GDestroyNotify)lookup_data_free);
g_task_set_return_on_cancel (task, TRUE);
g_task_run_in_thread_sync (task, do_lookup_by_name);
......@@ -251,6 +253,7 @@ lookup_by_name_with_flags_async (GResolver *resolver,
data = lookup_data_new (hostname, flags_to_family (flags));
task = g_task_new (resolver, cancellable, callback, user_data);
g_task_set_source_tag (task, lookup_by_name_with_flags_async);
g_task_set_name (task, "[gio] resolver lookup");
g_task_set_task_data (task, data, (GDestroyNotify)lookup_data_free);
g_task_set_return_on_cancel (task, TRUE);
g_task_run_in_thread (task, do_lookup_by_name);
......@@ -350,6 +353,7 @@ lookup_by_address (GResolver *resolver,
task = g_task_new (resolver, cancellable, NULL, NULL);
g_task_set_source_tag (task, lookup_by_address);
g_task_set_name (task, "[gio] resolver lookup");
g_task_set_task_data (task, g_object_ref (address), g_object_unref);
g_task_set_return_on_cancel (task, TRUE);
g_task_run_in_thread_sync (task, do_lookup_by_address);
......@@ -370,6 +374,7 @@ lookup_by_address_async (GResolver *resolver,
task = g_task_new (resolver, cancellable, callback, user_data);
g_task_set_source_tag (task, lookup_by_address_async);
g_task_set_name (task, "[gio] resolver lookup");
g_task_set_task_data (task, g_object_ref (address), g_object_unref);
g_task_set_return_on_cancel (task, TRUE);
g_task_run_in_thread (task, do_lookup_by_address);
......@@ -1040,6 +1045,7 @@ lookup_records (GResolver *resolver,
task = g_task_new (resolver, cancellable, NULL, NULL);
g_task_set_source_tag (task, lookup_records);
g_task_set_name (task, "[gio] resolver lookup records");
lrd = g_slice_new (LookupRecordsData);
lrd->rrname = g_strdup (rrname);
......@@ -1067,6 +1073,7 @@ lookup_records_async (GResolver *resolver,
task = g_task_new (resolver, cancellable, callback, user_data);
g_task_set_source_tag (task, lookup_records_async);
g_task_set_name (task, "[gio] resolver lookup records");
lrd = g_slice_new (LookupRecordsData);
lrd->rrname = g_strdup (rrname);
......
......@@ -186,6 +186,7 @@ g_tls_database_real_verify_chain_async (GTlsDatabase *self,
task = g_task_new (self, cancellable, callback, user_data);
g_task_set_source_tag (task, g_tls_database_real_verify_chain_async);
g_task_set_name (task, "[gio] verify TLS chain");
g_task_set_task_data (task, args, async_verify_chain_free);
g_task_run_in_thread (task, async_verify_chain_thread);
g_object_unref (task);
......@@ -264,6 +265,7 @@ g_tls_database_real_lookup_certificate_for_handle_async (GTlsDatabase
task = g_task_new (self, cancellable, callback, user_data);
g_task_set_source_tag (task,
g_tls_database_real_lookup_certificate_for_handle_async);
g_task_set_name (task, "[gio] lookup TLS certificate");
g_task_set_task_data (task, args, async_lookup_certificate_for_handle_free);
g_task_run_in_thread (task, async_lookup_certificate_for_handle_thread);
g_object_unref (task);
......@@ -338,6 +340,7 @@ g_tls_database_real_lookup_certificate_issuer_async (GTlsDatabase *sel
task = g_task_new (self, cancellable, callback, user_data);
g_task_set_source_tag (task,
g_tls_database_real_lookup_certificate_issuer_async);
g_task_set_name (task, "[gio] lookup certificate issuer");
g_task_set_task_data (task, args, async_lookup_certificate_issuer_free);
g_task_run_in_thread (task, async_lookup_certificate_issuer_thread);
g_object_unref (task);
......@@ -419,6 +422,7 @@ g_tls_database_real_lookup_certificates_issued_by_async (GTlsDatabase
task = g_task_new (self, cancellable, callback, user_data);
g_task_set_source_tag (task,
g_tls_database_real_lookup_certificates_issued_by_async);
g_task_set_name (task, "[gio] lookup certificates issued by");
g_task_set_task_data (task, args, async_lookup_certificates_issued_by_free);
g_task_run_in_thread (task, async_lookup_certificates_issued_by_thread);
g_object_unref (task);
......
......@@ -302,7 +302,8 @@ eject_unmount_do (GMount *mount,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data,
char **argv)
char **argv,
const gchar *task_name)
{
GUnixMount *unix_mount = G_UNIX_MOUNT (mount);
GTask *task;
......@@ -310,6 +311,7 @@ eject_unmount_do (GMount *mount,
task = g_task_new (mount, cancellable, callback, user_data);
g_task_set_source_tag (task, eject_unmount_do);
g_task_set_name (task, task_name);
g_task_set_task_data (task, g_strdupv (argv), (GDestroyNotify) g_strfreev);
if (unix_mount->volume_monitor != NULL)
......@@ -337,7 +339,7 @@ g_unix_mount_unmount (GMount *mount,
else
argv[1] = unix_mount->device_path;
eject_unmount_do (mount, cancellable, callback, user_data, argv);
eject_unmount_do (mount, cancellable, callback, user_data, argv, "[gio] unmount mount");
}
static gboolean
......@@ -363,7 +365,7 @@ g_unix_mount_eject (GMount *mount,
else
argv[1] = unix_mount->device_path;
eject_unmount_do (mount, cancellable, callback, user_data, argv);
eject_unmount_do (mount, cancellable, callback, user_data, argv, "[gio] eject mount");
}
static gboolean
......
......@@ -305,7 +305,8 @@ eject_mount_do (GVolume *volume,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data,
const gchar * const *argv)
const gchar * const *argv,
const gchar *task_name)
{
GSubprocess *subprocess;
GError *error = NULL;
......@@ -313,6 +314,7 @@ eject_mount_do (GVolume *volume,
task = g_task_new (volume, cancellable, callback, user_data);
g_task_set_source_tag (task, eject_mount_do);
g_task_set_name (task, task_name);
if (g_task_return_error_if_cancelled (task))
{
......@@ -344,7 +346,7 @@ g_unix_volume_mount (GVolume *volume,
else
argv[1] = unix_volume->device_path;
eject_mount_do (volume, cancellable, callback, user_data, argv);
eject_mount_do (volume, cancellable, callback, user_data, argv, "[gio] mount volume");
}
static gboolean
......@@ -369,7 +371,7 @@ g_unix_volume_eject (GVolume *volume,
argv[1] = unix_volume->device_path;
eject_mount_do (volume, cancellable, callback, user_data, argv);
eject_mount_do (volume, cancellable, callback, user_data, argv, "[gio] eject volume");
}
static gboolean
......
......@@ -88,6 +88,7 @@
#include "gstrfuncs.h"
#include "gtestutils.h"
#include "gthreadprivate.h"
#include "gtrace-private.h"
#ifdef G_OS_WIN32
#include "gwin32.h"
......@@ -1248,6 +1249,12 @@ g_source_attach_unlocked (GSource *source,
if (do_wakeup && context->owner && context->owner != G_THREAD_SELF)
g_wakeup_signal (context->wakeup);
g_trace_mark (G_TRACE_CURRENT_TIME, 0,
"GLib", "g_source_attach",
"%s to context %p",
(g_source_get_name (source) != NULL) ? g_source_get_name (source) : "(unnamed)",
context);
return source->source_id;
}
......@@ -3291,6 +3298,7 @@ g_main_dispatch (GMainContext *context)
GSourceFunc,
gpointer);
GSource *prev_source;
gint64 begin_time_nsec G_GNUC_UNUSED;
dispatch = source->source_funcs->dispatch;
cb_funcs = source->callback_funcs;
......@@ -3317,12 +3325,20 @@ g_main_dispatch (GMainContext *context)
current->source = source;
current->depth++;
begin_time_nsec = G_TRACE_CURRENT_TIME;
TRACE (GLIB_MAIN_BEFORE_DISPATCH (g_source_get_name (source), source,
dispatch, callback, user_data));
need_destroy = !(* dispatch) (source, callback, user_data);
TRACE (GLIB_MAIN_AFTER_DISPATCH (g_source_get_name (source), source,
dispatch, need_destroy));
g_trace_mark (begin_time_nsec, G_TRACE_CURRENT_TIME - begin_time_nsec,
"GLib", "GSource.dispatch",
"%s ⇒ %s",
(g_source_get_name (source) != NULL) ? g_source_get_name (source) : "(unnamed)",
need_destroy ? "destroy" : "keep");
current->source = prev_source;
current->depth--;
......@@ -3626,12 +3642,22 @@ g_main_context_prepare (GMainContext *context,
if (prepare)
{
gint64 begin_time_nsec G_GNUC_UNUSED;
context->in_check_or_prepare++;
UNLOCK_CONTEXT (context);
begin_time_nsec = G_TRACE_CURRENT_TIME;
result = (* prepare) (source, &source_timeout);
TRACE (GLIB_MAIN_AFTER_PREPARE (source, prepare, source_timeout));
g_trace_mark (begin_time_nsec, G_TRACE_CURRENT_TIME - begin_time_nsec,
"GLib", "GSource.prepare",
"%s ⇒ %s",
(g_source_get_name (source) != NULL) ? g_source_get_name (source) : "(unnamed)",
result ? "ready" : "unready");
LOCK_CONTEXT (context);
context->in_check_or_prepare--;
}
......@@ -3886,14 +3912,24 @@ g_main_context_check (GMainContext *context,
if (check)
{
gint64 begin_time_nsec G_GNUC_UNUSED;
/* If the check function is set, call it. */
context->in_check_or_prepare++;
UNLOCK_CONTEXT (context);
begin_time_nsec = G_TRACE_CURRENT_TIME;
result = (* check) (source);
TRACE (GLIB_MAIN_AFTER_CHECK (source, check, result));
g_trace_mark (begin_time_nsec, G_TRACE_CURRENT_TIME - begin_time_nsec,
"GLib", "GSource.check",
"%s ⇒ %s",
(g_source_get_name (source) != NULL) ? g_source_get_name (source) : "(unnamed)",
result ? "dispatch" : "ignore");
LOCK_CONTEXT (context);
context->in_check_or_prepare--;
}
......@@ -4004,9 +4040,12 @@ g_main_context_iterate (GMainContext *context,
gboolean some_ready;
gint nfds, allocated_nfds;
GPollFD *fds = NULL;
gint64 begin_time_nsec G_GNUC_UNUSED;
UNLOCK_CONTEXT (context);
begin_time_nsec = G_TRACE_CURRENT_TIME;
if (!g_main_context_acquire (context))
{
gboolean got_ownership;
......@@ -4061,6 +4100,10 @@ g_main_context_iterate (GMainContext *context,
g_main_context_release (context);
g_trace_mark (begin_time_nsec, G_TRACE_CURRENT_TIME - begin_time_nsec,
"GLib", "g_main_context_iterate",
"Context %p, %s ⇒ %s", context, block ? "blocking" : "non-blocking", some_ready ? "dispatched" : "nothing");
LOCK_CONTEXT (context);
return some_ready;
......
......@@ -54,6 +54,7 @@
#include "gspawn.h"
#include "gspawn-private.h"
#include "gthread.h"
#include "gtrace-private.h"
#include "glib/gstdio.h"
#include "genviron.h"
......@@ -1760,7 +1761,10 @@ fork_exec_with_fds (gboolean intermediate_child,
if (!intermediate_child && working_directory == NULL && !close_descriptors &&
!search_path_from_envp && child_setup == NULL)
{
g_debug ("Launching with posix_spawn");
g_trace_mark (G_TRACE_CURRENT_TIME, 0,
"GLib", "posix_spawn",
"%s", argv[0]);
status = do_posix_spawn (argv,
envp,
search_path,
......@@ -1796,12 +1800,14 @@ fork_exec_with_fds (gboolean intermediate_child,
}
else
{
g_debug ("posix_spawn avoided %s%s%s%s%s",
!intermediate_child ? "" : "(automatic reaping requested) ",
working_directory == NULL ? "" : "(workdir specified) ",
!close_descriptors ? "" : "(fd close requested) ",
!search_path_from_envp ? "" : "(using envp for search path) ",
child_setup == NULL ? "" : "(child_setup specified) ");
g_trace_mark (G_TRACE_CURRENT_TIME, 0,
"GLib", "fork",
"posix_spawn avoided %s%s%s%s%s",
!intermediate_child ? "" : "(automatic reaping requested) ",
working_directory == NULL ? "" : "(workdir specified) ",
!close_descriptors ? "" : "(fd close requested) ",
!search_path_from_envp ? "" : "(using envp for search path) ",
child_setup == NULL ? "" : "(child_setup specified) ");
}
#endif /* POSIX_SPAWN_AVAILABLE */
......
/*
* Copyright © 2020 Endless Mobile, Inc.
*
* 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 "gmem.h"
#include "gmacros.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,
...);
#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
G_END_DECLS
/*
* Copyright © 2020 Endless Mobile, Inc.
*
* 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>
*/
/*
* SECTION:trace
* @Title: Performance tracing
* @Short_description: Functions for measuring and tracing performance
*
* The performance tracing functions allow for the performance of code using
* GLib to be measured by passing metrics from the current process to an
* external measurement process such as `sysprof-cli` or `sysprofd`.
*
* They are designed to execute quickly, especially in the common case where no
* measurement process is connected. They are guaranteed to not block the caller
* and are guaranteed to have zero runtime cost if tracing support is disabled
* at configure time.
*
* Tracing information can be provided as ‘marks’ with a start time and
* duration; or as marks with a start time and no duration. Marks with a
* duration are intended to show the execution time of a piece of code. Marks
* with no duration are intended to show an instantaneous performance problem,
* such as an unexpectedly large allocation, or that a slow path has been taken
* in some code.
*
* |[<!-- language="C" -->
* gint64 begin_time_nsec G_GNUC_UNUSED;
*
* begin_time_nsec = G_TRACE_CURRENT_TIME;
*
* // some code which might take a while
*
* g_trace_mark (begin_time_nsec, G_TRACE_CURRENT_TIME - begin_time_nsec,
* "GLib", "GSource.dispatch",
* "%s ⇒ %s", g_source_get_name (source), need_destroy ? "destroy" : "keep");
* ]|
*
* The tracing API is currently internal to GLib.
*
* Since: 2.66
*/
#include "config.h"
#include "gtrace-private.h"
#include <stdarg.h>
/*
* g_trace_mark:
* @begin_time_nsec: start time of the mark, as returned by %G_TRACE_CURRENT_TIME
* @duration_nsec: duration of the mark, in nanoseconds
* @group: name of the group for categorising this mark
* @name: name of the mark
* @message_format: format for the detailed message for the mark, in `printf()` format
* @...: arguments to substitute into @message_format; none of these should have
* side effects
*
* Add a mark to the trace, starting at @begin_time_nsec and having length
* @duration_nsec (which may be zero). The @group should typically be `GLib`,
* and the @name should concisely describe the call site.
*
* All of the arguments to this function must not have side effects, as the
* entire function call may be dropped if sysprof support is not available.
*
* Since: 2.66
*/
void
(g_trace_mark) (gint64 begin_time_nsec,
gint64 duration_nsec,
const gchar *group,
const gchar *name,
const gchar *message_format,
...)
{
#ifdef HAVE_SYSPROF
va_list args;
va_start (args, message_format);
sysprof_collector_mark_vprintf (begin_time_nsec, duration_nsec, group, name, message_format, args);
va_end (args);
#endif /* HAVE_SYSPROF */
}