gstreamer/gst-libs/gst/sctp/sctpsendmeta.c
Matthew Waters 640a65bf96 gst: don't use volatile to mean atomic
volatile is not sufficient to provide atomic guarantees and real atomics
should be used instead.  GCC 11 has started warning about using volatile
with atomic operations.

https://gitlab.gnome.org/GNOME/glib/-/merge_requests/1719

Discovered in https://gitlab.freedesktop.org/gstreamer/gst-plugins-good/-/issues/868

Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-bad/-/merge_requests/2098>
2021-03-22 14:34:36 +11:00

102 lines
3.7 KiB
C

/*
* Copyright (c) 2015, Collabora Ltd.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or other
* materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "sctpsendmeta.h"
static gboolean gst_sctp_send_meta_init (GstMeta * meta, gpointer params,
GstBuffer * buffer);
static gboolean gst_sctp_send_meta_transform (GstBuffer * transbuf,
GstMeta * meta, GstBuffer * buffer, GQuark type, gpointer data);
GType
gst_sctp_send_meta_api_get_type (void)
{
static const gchar *tags[] = { NULL };
static GType type;
if (g_once_init_enter (&type)) {
GType _type = gst_meta_api_type_register ("GstSctpSendMetaAPI", tags);
g_once_init_leave (&type, _type);
}
return type;
}
const GstMetaInfo *
gst_sctp_send_meta_get_info (void)
{
static const GstMetaInfo *gst_sctp_send_meta_info = NULL;
if (g_once_init_enter (&gst_sctp_send_meta_info)) {
const GstMetaInfo *meta = gst_meta_register (GST_SCTP_SEND_META_API_TYPE,
"GstSctpSendMeta",
sizeof (GstSctpSendMeta),
gst_sctp_send_meta_init,
(GstMetaFreeFunction) NULL,
gst_sctp_send_meta_transform);
g_once_init_leave (&gst_sctp_send_meta_info, meta);
}
return gst_sctp_send_meta_info;
}
static gboolean
gst_sctp_send_meta_init (GstMeta * meta, gpointer params, GstBuffer * buffer)
{
GstSctpSendMeta *gst_sctp_send_meta = (GstSctpSendMeta *) meta;
gst_sctp_send_meta->ppid = 0;
gst_sctp_send_meta->ordered = TRUE;
gst_sctp_send_meta->pr = GST_SCTP_SEND_META_PARTIAL_RELIABILITY_NONE;
gst_sctp_send_meta->pr_param = 0;
return TRUE;
}
static gboolean
gst_sctp_send_meta_transform (GstBuffer * transbuf, GstMeta * meta,
GstBuffer * buffer, GQuark type, gpointer data)
{
GstSctpSendMeta *gst_sctp_send_meta = (GstSctpSendMeta *) meta;
gst_sctp_buffer_add_send_meta (transbuf, gst_sctp_send_meta->ppid,
gst_sctp_send_meta->ordered, gst_sctp_send_meta->pr,
gst_sctp_send_meta->pr_param);
return TRUE;
}
GstSctpSendMeta *
gst_sctp_buffer_add_send_meta (GstBuffer * buffer, guint32 ppid,
gboolean ordered, GstSctpSendMetaPartiallyReliability pr, guint32 pr_param)
{
GstSctpSendMeta *gst_sctp_send_meta = NULL;
g_return_val_if_fail (GST_IS_BUFFER (buffer), NULL);
gst_sctp_send_meta =
(GstSctpSendMeta *) gst_buffer_add_meta (buffer, GST_SCTP_SEND_META_INFO,
NULL);
gst_sctp_send_meta->ppid = ppid;
gst_sctp_send_meta->ordered = ordered;
gst_sctp_send_meta->pr = pr;
gst_sctp_send_meta->pr_param = pr_param;
return gst_sctp_send_meta;
}