gstreamer/gst/gsttracerrecord.h
Chris White a38d06cb1c gst: Add missing G_GNUC_NULL_TERMINATED markers
Functions that require NULL as their last vararg are marked so the
compiler can warn on missing NULL.

Also, document the NULL terminator for gst_make_element_message_details()
and gst_tracer_record_new().

https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/669

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/774>
2021-04-01 20:53:26 -04:00

106 lines
3.8 KiB
C

/* GStreamer
* Copyright (C) 2016 Stefan Sauer <ensonic@users.sf.net>
*
* gsttracerrecord.h: tracer log record class
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_TRACER_RECORD_H__
#define __GST_TRACER_RECORD_H__
#include <gst/gstobject.h>
G_BEGIN_DECLS
/**
* GstTracerRecord:
*
* The opaque GstTracerRecord instance structure
*
* Since: 1.8
*/
typedef struct _GstTracerRecord GstTracerRecord;
typedef struct _GstTracerRecordClass GstTracerRecordClass;
#define GST_TYPE_TRACER_RECORD (gst_tracer_record_get_type())
#define GST_TRACER_RECORD(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj),GST_TYPE_TRACER_RECORD,GstTracerRecord))
#define GST_TRACER_RECORD_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass),GST_TYPE_TRACER_RECORD,GstTracerRecordClass))
#define GST_IS_TRACER_RECORD(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj),GST_TYPE_TRACER_RECORD))
#define GST_IS_TRACER_RECORD_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass),GST_TYPE_TRACER_RECORD))
#define GST_TRACER_RECORD_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj),GST_TYPE_TRACER_RECORD,GstTracerRecordClass))
#define GST_TRACER_RECORD_CAST(obj) ((GstTracerRecord *)(obj))
GST_API
GType gst_tracer_record_get_type (void);
G_DEFINE_AUTOPTR_CLEANUP_FUNC(GstTracerRecord, gst_object_unref)
/**
* GstTracerValueScope:
* @GST_TRACER_VALUE_SCOPE_PROCESS: the value is related to the process
* @GST_TRACER_VALUE_SCOPE_THREAD: the value is related to a thread
* @GST_TRACER_VALUE_SCOPE_ELEMENT: the value is related to an #GstElement
* @GST_TRACER_VALUE_SCOPE_PAD: the value is related to a #GstPad
*
* Tracing record will contain fields that contain a measured value or extra
* meta-data. One such meta data are values that tell where a measurement was
* taken. This enumerating declares to which scope such a meta data field
* relates to. If it is e.g. %GST_TRACER_VALUE_SCOPE_PAD, then each of the log
* events may contain values for different #GstPads.
*
* Since: 1.8
*/
typedef enum
{
GST_TRACER_VALUE_SCOPE_PROCESS,
GST_TRACER_VALUE_SCOPE_THREAD,
GST_TRACER_VALUE_SCOPE_ELEMENT,
GST_TRACER_VALUE_SCOPE_PAD
} GstTracerValueScope;
/**
* GstTracerValueFlags:
* @GST_TRACER_VALUE_FLAGS_NONE: no flags
* @GST_TRACER_VALUE_FLAGS_OPTIONAL: the value is optional. When using this flag
* one need to have an additional boolean arg before this value in the
* var-args list passed to gst_tracer_record_log().
* @GST_TRACER_VALUE_FLAGS_AGGREGATED: the value is a combined figure, since the
* start of tracing. Examples are averages or timestamps.
*
* Flag that describe the value. These flags help applications processing the
* logs to understand the values.
*/
typedef enum
{
GST_TRACER_VALUE_FLAGS_NONE = 0,
GST_TRACER_VALUE_FLAGS_OPTIONAL = (1 << 0),
GST_TRACER_VALUE_FLAGS_AGGREGATED = (1 << 1),
} GstTracerValueFlags;
GST_API
GstTracerRecord * gst_tracer_record_new (const gchar * name, const gchar * firstfield, ...) G_GNUC_NULL_TERMINATED;
#ifndef GST_DISABLE_GST_DEBUG
GST_API
void gst_tracer_record_log (GstTracerRecord *self, ...);
#else
#define gst_tracer_record_log(...) G_STMT_START {} G_STMT_END
#endif
G_END_DECLS
#endif /* __GST_TRACER_RECORD_H__ */