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gst/tcp/gsttcpserversrc.c: Don't block in accept while doing the state change, move to poll and make cancellable.

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Original commit message from CVS:
* gst/tcp/gsttcpserversrc.c: (gst_tcpserversrc_create),
(gst_tcpserversrc_start):
Don't block in accept while doing the state change, move
to poll and make cancellable.
This commit is contained in:
Wim Taymans 2005-10-10 12:29:22 +00:00
parent 003cd58432
commit 6771e8b7c9
2 changed files with 75 additions and 17 deletions
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7
ChangeLog
View file

@ -1,3 +1,10 @@
2005-10-10 Wim Taymans <wim@fluendo.com>
* gst/tcp/gsttcpserversrc.c: (gst_tcpserversrc_create),
(gst_tcpserversrc_start):
Don't block in accept while doing the state change, move
to poll and make cancellable.
2005-10-09 Philippe Khalaf <burger@speedy.org>
* gst-libs/gst/rtp/rtpbasedepayload.c:

85
gst/tcp/gsttcpserversrc.c
View file

@ -170,12 +170,50 @@ gst_tcpserversrc_create (GstPushSrc * psrc, GstBuffer ** outbuf)
{
GstTCPServerSrc *src;
GstFlowReturn ret = GST_FLOW_OK;
fd_set testfds;
int maxfdp1;
src = GST_TCPSERVERSRC (psrc);
if (!GST_FLAG_IS_SET (src, GST_TCPSERVERSRC_OPEN))
goto wrong_state;
restart:
/* do a blocking select on the socket */
FD_ZERO (&testfds);
/* always select on cancel socket */
FD_SET (READ_SOCKET (src), &testfds);
if (src->client_sock_fd >= 0) {
/* if we have a client, wait for read */
FD_SET (src->client_sock_fd, &testfds);
maxfdp1 = MAX (src->client_sock_fd, READ_SOCKET (src)) + 1;
} else {
/* else wait on server socket for connections */
FD_SET (src->server_sock_fd, &testfds);
maxfdp1 = MAX (src->server_sock_fd, READ_SOCKET (src)) + 1;
}
/* no action (0) is an error too in our case */
if (select (maxfdp1, &testfds, NULL, NULL, 0) <= 0)
goto select_error;
if (FD_ISSET (READ_SOCKET (src), &testfds))
goto select_cancelled;
/* if we have no client socket we can accept one now */
if (src->client_sock_fd < 0) {
if (FD_ISSET (src->server_sock_fd, &testfds)) {
if ((src->client_sock_fd =
accept (src->server_sock_fd, (struct sockaddr *) &src->client_sin,
&src->client_sin_len)) == -1)
goto accept_error;
}
/* and restart now to poll the socket. */
goto restart;
}
GST_LOG_OBJECT (src, "asked for a buffer");
switch (src->protocol) {
@ -192,6 +230,9 @@ gst_tcpserversrc_create (GstPushSrc * psrc, GstBuffer ** outbuf)
ret = gst_tcp_gdp_read_caps (GST_ELEMENT (src), src->client_sock_fd,
READ_SOCKET (src), &caps);
if (ret == GST_FLOW_WRONG_STATE)
goto gdp_cancelled;
if (ret != GST_FLOW_OK)
goto gdp_caps_read_error;
@ -235,10 +276,35 @@ wrong_state:
GST_DEBUG_OBJECT (src, "connection to closed, cannot read data");
return GST_FLOW_WRONG_STATE;
}
gdp_caps_read_error:
select_error:
{
GST_ELEMENT_ERROR (src, RESOURCE, READ, (NULL),
("Could not read caps through GDP"));
("Select error: %s", g_strerror (errno)));
return GST_FLOW_ERROR;
}
select_cancelled:
{
GST_DEBUG_OBJECT (src, "select canceled");
return GST_FLOW_WRONG_STATE;
}
accept_error:
{
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("Could not accept client on server socket: %s", g_strerror (errno)));
return GST_FLOW_ERROR;
}
gdp_cancelled:
{
GST_DEBUG_OBJECT (src, "reading gdp canceled");
return GST_FLOW_WRONG_STATE;
}
gdp_caps_read_error:
{
/* if we did not get canceled, report an error */
if (ret != GST_FLOW_WRONG_STATE) {
GST_ELEMENT_ERROR (src, RESOURCE, READ, (NULL),
("Could not read caps through GDP"));
}
return ret;
}
}
@ -350,14 +416,6 @@ gst_tcpserversrc_start (GstBaseSrc * bsrc)
if (listen (src->server_sock_fd, TCP_BACKLOG) == -1)
goto listen_error;
/* FIXME: maybe we should think about moving actual client accepting
somewhere else */
GST_DEBUG_OBJECT (src, "waiting for client");
if ((src->client_sock_fd =
accept (src->server_sock_fd, (struct sockaddr *) &src->client_sin,
&src->client_sin_len)) == -1)
goto accept_error;
GST_DEBUG_OBJECT (src, "received client");
GST_FLAG_SET (src, GST_TCPSERVERSRC_OPEN);
@ -405,13 +463,6 @@ listen_error:
("Could not listen on server socket: %s", g_strerror (errno)));
return FALSE;
}
accept_error:
{
gst_tcp_socket_close (&src->server_sock_fd);
GST_ELEMENT_ERROR (src, RESOURCE, OPEN_READ, (NULL),
("Could not accept client on server socket: %s", g_strerror (errno)));
return FALSE;
}
}
static gboolean