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nettimeprovider: Use GInitable instead of having a new() function that can return NULL

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Bindings don't like that much and as we're using GIO here anyway we can as
well use GInitable for possibly failing initialization.
This commit is contained in:
Sebastian Dröge 2016-01-04 10:39:27 +02:00
parent 5dc8cea6f4
commit 23abc425d4
1 changed files with 44 additions and 27 deletions
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71
libs/gst/net/gstnettimeprovider.c
View file

@ -76,7 +76,10 @@ struct _GstNetTimeProviderPrivate
gboolean made_cancel_fd;
};
static gboolean gst_net_time_provider_start (GstNetTimeProvider * bself);
static void gst_net_time_provider_initable_iface_init (gpointer g_iface);
static gboolean gst_net_time_provider_start (GstNetTimeProvider * bself,
GError ** error);
static void gst_net_time_provider_stop (GstNetTimeProvider * bself);
static gpointer gst_net_time_provider_thread (gpointer data);
@ -88,7 +91,8 @@ static void gst_net_time_provider_get_property (GObject * object, guint prop_id,
GValue * value, GParamSpec * pspec);
#define _do_init \
GST_DEBUG_CATEGORY_INIT (ntp_debug, "nettime", 0, "Network time provider");
GST_DEBUG_CATEGORY_INIT (ntp_debug, "nettime", 0, "Network time provider"); \
G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE, gst_net_time_provider_initable_iface_init)
#define gst_net_time_provider_parent_class parent_class
G_DEFINE_TYPE_WITH_CODE (GstNetTimeProvider, gst_net_time_provider,
@ -272,20 +276,24 @@ gst_net_time_provider_get_property (GObject * object, guint prop_id,
}
static gboolean
gst_net_time_provider_start (GstNetTimeProvider * self)
gst_net_time_provider_start (GstNetTimeProvider * self, GError ** error)
{
GSocketAddress *socket_addr, *bound_addr;
GInetAddress *inet_addr;
GPollFD dummy_pollfd;
GSocket *socket;
GError *err = NULL;
int port;
gchar *address;
GError *err = NULL;
if (self->priv->address) {
inet_addr = g_inet_address_new_from_string (self->priv->address);
if (inet_addr == NULL)
if (inet_addr == NULL) {
err =
g_error_new (G_IO_ERROR, G_IO_ERROR_FAILED,
"Failed to parse address '%s'", self->priv->address);
goto invalid_address;
}
} else {
inet_addr = g_inet_address_new_any (G_SOCKET_FAMILY_IPV4);
}
@ -294,18 +302,19 @@ gst_net_time_provider_start (GstNetTimeProvider * self)
socket = g_socket_new (g_inet_address_get_family (inet_addr),
G_SOCKET_TYPE_DATAGRAM, G_SOCKET_PROTOCOL_UDP, &err);
if (err != NULL)
if (!socket)
goto no_socket;
GST_DEBUG_OBJECT (self, "binding on port %d", self->priv->port);
socket_addr = g_inet_socket_address_new (inet_addr, self->priv->port);
g_socket_bind (socket, socket_addr, TRUE, &err);
if (!g_socket_bind (socket, socket_addr, TRUE, &err)) {
g_object_unref (socket_addr);
g_object_unref (inet_addr);
goto bind_error;
}
g_object_unref (socket_addr);
g_object_unref (inet_addr);
if (err != NULL)
goto bind_error;
bound_addr = g_socket_get_local_address (socket, NULL);
port = g_inet_socket_address_get_port (G_INET_SOCKET_ADDRESS (bound_addr));
inet_addr =
@ -337,7 +346,7 @@ gst_net_time_provider_start (GstNetTimeProvider * self)
self->priv->thread = g_thread_try_new ("GstNetTimeProvider",
gst_net_time_provider_thread, self, &err);
if (err != NULL)
if (!self->priv->thread)
goto no_thread;
return TRUE;
@ -346,26 +355,27 @@ gst_net_time_provider_start (GstNetTimeProvider * self)
invalid_address:
{
GST_ERROR_OBJECT (self, "invalid address: %s", self->priv->address);
g_propagate_error (error, err);
return FALSE;
}
no_socket:
{
GST_ERROR_OBJECT (self, "could not create socket: %s", err->message);
g_error_free (err);
g_propagate_error (error, err);
g_object_unref (inet_addr);
return FALSE;
}
bind_error:
{
GST_ERROR_OBJECT (self, "bind failed: %s", err->message);
g_error_free (err);
g_propagate_error (error, err);
g_object_unref (socket);
return FALSE;
}
no_thread:
{
GST_ERROR_OBJECT (self, "could not create thread: %s", err->message);
g_error_free (err);
g_propagate_error (error, err);
g_object_unref (self->priv->socket);
self->priv->socket = NULL;
g_object_unref (self->priv->cancel);
@ -397,6 +407,23 @@ gst_net_time_provider_stop (GstNetTimeProvider * self)
GST_INFO_OBJECT (self, "stopped");
}
static gboolean
gst_net_time_provider_initable_init (GInitable * initable,
GCancellable * cancellable, GError ** error)
{
GstNetTimeProvider *self = GST_NET_TIME_PROVIDER (initable);
return gst_net_time_provider_start (self, error);
}
static void
gst_net_time_provider_initable_iface_init (gpointer g_iface)
{
GInitableIface *iface = g_iface;
iface->init = gst_net_time_provider_initable_init;
}
/**
* gst_net_time_provider_new:
* @clock: a #GstClock to export over the network
@ -416,19 +443,9 @@ gst_net_time_provider_new (GstClock * clock, const gchar * address, gint port)
g_return_val_if_fail (clock && GST_IS_CLOCK (clock), NULL);
g_return_val_if_fail (port >= 0 && port <= G_MAXUINT16, NULL);
ret = g_object_new (GST_TYPE_NET_TIME_PROVIDER, "clock", clock, "address",
address, "port", port, NULL);
ret =
g_initable_new (GST_TYPE_NET_TIME_PROVIDER, NULL, NULL, "clock", clock,
"address", address, "port", port, NULL);
if (!gst_net_time_provider_start (ret))
goto failed_start;
/* all systems go, cap'n */
return ret;
failed_start:
{
/* already printed a nice error */
gst_object_unref (ret);
return NULL;
}
}