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dtls: Use a plain function pointer instead of a GClosure for the send callback

Browse source 
There's not point in using GClosure and going through all the
GValue/libffi infrastructure for each DTLS packet.
This commit is contained in:
Sebastian Dröge 2020-01-12 11:24:15 +02:00 committed by GStreamer Merge Bot
parent 47ce34d32c
commit ee55dac8d4
3 changed files with 30 additions and 43 deletions
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58
ext/dtls/gstdtlsconnection.c
View file

@ -93,7 +93,9 @@ struct _GstDtlsConnectionPrivate
gint bio_buffer_len;
gint bio_buffer_offset;
GClosure *send_closure;
GstDtlsConnectionSendCallback send_callback;
gpointer send_callback_user_data;
GDestroyNotify send_callback_destroy_notify;
gboolean timeout_pending;
GThreadPool *thread_pool;
@ -170,8 +172,6 @@ gst_dtls_connection_init (GstDtlsConnection * self)
priv->ssl = NULL;
priv->bio = NULL;
priv->send_closure = NULL;
priv->is_client = FALSE;
priv->is_alive = TRUE;
priv->keys_exported = FALSE;
@ -203,10 +203,8 @@ gst_dtls_connection_finalize (GObject * gobject)
SSL_free (priv->ssl);
priv->ssl = NULL;
if (priv->send_closure) {
g_closure_unref (priv->send_closure);
priv->send_closure = NULL;
}
if (priv->send_callback_destroy_notify)
priv->send_callback_destroy_notify (priv->send_callback_user_data);
g_mutex_clear (&priv->mutex);
g_cond_clear (&priv->condition);
@ -293,7 +291,7 @@ gst_dtls_connection_start (GstDtlsConnection * self, gboolean is_client)
priv = self->priv;
g_return_if_fail (priv->send_closure);
g_return_if_fail (priv->send_callback);
g_return_if_fail (priv->ssl);
g_return_if_fail (priv->bio);
@ -486,26 +484,27 @@ gst_dtls_connection_close (GstDtlsConnection * self)
void
gst_dtls_connection_set_send_callback (GstDtlsConnection * self,
GClosure * closure)
GstDtlsConnectionSendCallback callback, gpointer user_data,
GDestroyNotify destroy_notify)
{
GstDtlsConnectionPrivate *priv;
g_return_if_fail (GST_IS_DTLS_CONNECTION (self));
priv = self->priv;
GST_TRACE_OBJECT (self, "locking @ set_send_callback");
g_mutex_lock (&self->priv->mutex);
g_mutex_lock (&priv->mutex);
GST_TRACE_OBJECT (self, "locked @ set_send_callback");
if (self->priv->send_closure) {
g_closure_unref (self->priv->send_closure);
self->priv->send_closure = NULL;
}
self->priv->send_closure = closure;
if (closure && G_CLOSURE_NEEDS_MARSHAL (closure)) {
g_closure_set_marshal (closure, g_cclosure_marshal_generic);
}
if (priv->send_callback_destroy_notify)
priv->send_callback_destroy_notify (priv->send_callback_user_data);
priv->send_callback = callback;
priv->send_callback_user_data = user_data;
priv->send_callback_destroy_notify = destroy_notify;
GST_TRACE_OBJECT (self, "unlocking @ set_send_callback");
g_mutex_unlock (&self->priv->mutex);
g_mutex_unlock (&priv->mutex);
}
gint
@ -903,22 +902,9 @@ bio_method_write (BIO * bio, const char *data, int size)
GST_LOG_OBJECT (self, "BIO: writing %d", size);
if (self->priv->send_closure) {
GValue values[3] = { G_VALUE_INIT };
g_value_init (&values[0], GST_TYPE_DTLS_CONNECTION);
g_value_set_object (&values[0], self);
g_value_init (&values[1], G_TYPE_POINTER);
g_value_set_pointer (&values[1], (gpointer) data);
g_value_init (&values[2], G_TYPE_INT);
g_value_set_int (&values[2], size);
g_closure_invoke (self->priv->send_closure, NULL, 3, values, NULL);
g_value_unset (&values[0]);
}
if (self->priv->send_callback)
self->priv->send_callback (self, data, size,
self->priv->send_callback_user_data);
return size;
}

10
ext/dtls/gstdtlsconnection.h
View file

@ -98,13 +98,13 @@ void gst_dtls_connection_stop(GstDtlsConnection *);
*/
void gst_dtls_connection_close(GstDtlsConnection *);
typedef void (*GstDtlsConnectionSendCallback) (GstDtlsConnection * connection, gconstpointer data, gsize length, gpointer user_data);
/*
* Sets the closure that will be called whenever data needs to be sent.
*
* The closure will get called with the following arguments:
* void cb(GstDtlsConnection *, gpointer data, gint length, gpointer user_data)
* Sets the callback that will be called whenever data needs to be sent.
*/
void gst_dtls_connection_set_send_callback(GstDtlsConnection *, GClosure *);
void gst_dtls_connection_set_send_callback(GstDtlsConnection *, GstDtlsConnectionSendCallback, gpointer, GDestroyNotify);
/*
* Processes data that has been received, the transformation is done in-place.

5
ext/dtls/gstdtlsenc.c
View file

@ -296,7 +296,7 @@ gst_dtls_enc_change_state (GstElement * element, GstStateChange transition)
"on-encoder-key", G_CALLBACK (on_key_received), self, 0);
gst_dtls_connection_set_send_callback (self->connection,
g_cclosure_new (G_CALLBACK (on_send_data), self, NULL));
(GstDtlsConnectionSendCallback) on_send_data, self, NULL);
} else {
GST_WARNING_OBJECT (self,
"trying to change state to ready without connection id");
@ -313,7 +313,8 @@ gst_dtls_enc_change_state (GstElement * element, GstStateChange transition)
if (self->connection) {
gst_dtls_connection_close (self->connection);
gst_dtls_connection_set_send_callback (self->connection, NULL);
gst_dtls_connection_set_send_callback (self->connection, NULL, NULL,
NULL);
g_object_unref (self->connection);
self->connection = NULL;
}