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dtls: Propagate write errors backwards through dtlsenc/dtlsconnection

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This commit is contained in:
Sebastian Dröge 2020-01-12 12:48:55 +02:00 committed by GStreamer Merge Bot
parent ee55dac8d4
commit a132138f1c
4 changed files with 31 additions and 6 deletions
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5
ext/dtls/gstdtlsconnection.c
View file

@ -899,14 +899,15 @@ static int
bio_method_write (BIO * bio, const char *data, int size)
{
GstDtlsConnection *self = GST_DTLS_CONNECTION (BIO_get_data (bio));
gboolean ret = TRUE;
GST_LOG_OBJECT (self, "BIO: writing %d", size);
if (self->priv->send_callback)
self->priv->send_callback (self, data, size,
ret = self->priv->send_callback (self, data, size,
self->priv->send_callback_user_data);
return size;
return ret ? size : -1;
}
static int

2
ext/dtls/gstdtlsconnection.h
View file

@ -99,7 +99,7 @@ void gst_dtls_connection_stop(GstDtlsConnection *);
void gst_dtls_connection_close(GstDtlsConnection *);
typedef void (*GstDtlsConnectionSendCallback) (GstDtlsConnection * connection, gconstpointer data, gsize length, gpointer user_data);
typedef gboolean (*GstDtlsConnectionSendCallback) (GstDtlsConnection * connection, gconstpointer data, gsize length, gpointer user_data);
/*
* Sets the callback that will be called whenever data needs to be sent.

29
ext/dtls/gstdtlsenc.c
View file

@ -100,8 +100,8 @@ static gboolean sink_event (GstPad * pad, GstObject * parent, GstEvent * event);
static void on_key_received (GstDtlsConnection *, gpointer key, guint cipher,
guint auth, GstDtlsEnc *);
static void on_send_data (GstDtlsConnection *, gconstpointer data, gint length,
GstDtlsEnc *);
static gboolean on_send_data (GstDtlsConnection *, gconstpointer data,
gint length, GstDtlsEnc *);
static void
gst_dtls_enc_class_init (GstDtlsEncClass * klass)
@ -378,6 +378,7 @@ src_activate_mode (GstPad * pad, GstObject * parent, GstPadMode mode,
GST_DEBUG_OBJECT (self, "src pad activating in push mode");
self->flushing = FALSE;
self->src_ret = GST_FLOW_OK;
self->send_initial_events = TRUE;
success =
gst_pad_start_task (pad, (GstTaskFunction) src_task_loop, self->src,
@ -392,6 +393,7 @@ src_activate_mode (GstPad * pad, GstObject * parent, GstPadMode mode,
g_queue_foreach (&self->queue, (GFunc) gst_buffer_unref, NULL);
g_queue_clear (&self->queue);
self->flushing = TRUE;
self->src_ret = GST_FLOW_FLUSHING;
g_cond_signal (&self->queue_cond_add);
g_mutex_unlock (&self->queue_lock);
success = gst_pad_stop_task (pad);
@ -466,6 +468,9 @@ src_task_loop (GstPad * pad)
GST_WARNING_OBJECT (self, "failed to push buffer on src pad: %s",
gst_flow_get_name (ret));
}
g_mutex_lock (&self->queue_lock);
self->src_ret = ret;
g_mutex_unlock (&self->queue_lock);
}
static GstFlowReturn
@ -475,6 +480,19 @@ sink_chain (GstPad * pad, GstObject * parent, GstBuffer * buffer)
GstMapInfo map_info;
gint ret;
g_mutex_lock (&self->queue_lock);
if (self->src_ret != GST_FLOW_OK) {
if (G_UNLIKELY (self->src_ret == GST_FLOW_NOT_LINKED
|| self->src_ret < GST_FLOW_EOS))
GST_ERROR_OBJECT (self, "Pushing previous data returned an error: %s",
gst_flow_get_name (self->src_ret));
gst_buffer_unref (buffer);
g_mutex_unlock (&self->queue_lock);
return self->src_ret;
}
g_mutex_unlock (&self->queue_lock);
gst_buffer_map (buffer, &map_info, GST_MAP_READ);
if (map_info.size) {
@ -548,11 +566,12 @@ on_key_received (GstDtlsConnection * connection, gpointer key, guint cipher,
g_signal_emit (self, signals[SIGNAL_ON_KEY_RECEIVED], 0);
}
static void
static gboolean
on_send_data (GstDtlsConnection * connection, gconstpointer data, gint length,
GstDtlsEnc * self)
{
GstBuffer *buffer;
gboolean ret;
GST_DEBUG_OBJECT (self, "sending data from %s with length %d",
self->connection_id, length);
@ -569,5 +588,9 @@ on_send_data (GstDtlsConnection * connection, gconstpointer data, gint length,
g_cond_signal (&self->queue_cond_add);
GST_TRACE_OBJECT (self, "send data: releasing lock");
ret = self->src_ret == GST_FLOW_OK;
g_mutex_unlock (&self->queue_lock);
return ret;
}

1
ext/dtls/gstdtlsenc.h
View file

@ -46,6 +46,7 @@ struct _GstDtlsEnc {
GstElement element;
GstPad *src;
GstFlowReturn src_ret;
GQueue queue;
GMutex queue_lock;