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gst/tcp/: Abstracted away the select call, implemented poll (yes we ran into the 1024 limit in production).

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Original commit message from CVS:
* gst/tcp/Makefile.am:
* gst/tcp/gstfdset.c: (gst_fdset_mode_get_type), (nearest_pow),
(ensure_size), (gst_fdset_new), (gst_fdset_free),
(gst_fdset_set_mode), (gst_fdset_get_mode), (gst_fdset_add_fd),
(gst_fdset_remove_fd), (gst_fdset_fd_ctl_write),
(gst_fdset_fd_ctl_read), (gst_fdset_fd_has_closed),
(gst_fdset_fd_has_error), (gst_fdset_fd_can_read),
(gst_fdset_fd_can_write), (gst_fdset_wait):
* gst/tcp/gstfdset.h:
* gst/tcp/gstmultifdsink.c: (gst_unit_type_get_type),
(gst_multifdsink_class_init), (gst_multifdsink_init),
(gst_multifdsink_add), (gst_multifdsink_remove),
(gst_multifdsink_clear), (gst_multifdsink_get_stats),
(gst_multifdsink_remove_client_link),
(gst_multifdsink_handle_client_read),
(gst_multifdsink_client_queue_data),
(gst_multifdsink_client_queue_caps),
(gst_multifdsink_client_queue_buffer),
(gst_multifdsink_handle_client_write),
(gst_multifdsink_recover_client), (gst_multifdsink_queue_buffer),
(gst_multifdsink_handle_clients), (gst_multifdsink_set_property),
(gst_multifdsink_get_property), (gst_multifdsink_init_send),
(gst_multifdsink_close):
* gst/tcp/gstmultifdsink.h:
* gst/tcp/gsttcpserversink.c: (gst_tcpserversink_class_init),
(gst_tcpserversink_init), (gst_tcpserversink_handle_server_read),
(gst_tcpserversink_handle_wait), (gst_tcpserversink_init_send),
(gst_tcpserversink_close):
* gst/tcp/gsttcpserversink.h:
Abstracted away the select call, implemented poll (yes we ran into
the 1024 limit in production).
This commit is contained in:
Wim Taymans 2004-08-11 15:58:48 +00:00
parent 2260add03b
commit 870c00c76a
8 changed files with 611 additions and 124 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

34
ChangeLog
View file

@ -1,3 +1,37 @@
2004-08-11 Wim Taymans <wim@fluendo.com>
* gst/tcp/Makefile.am:
* gst/tcp/gstfdset.c: (gst_fdset_mode_get_type), (nearest_pow),
(ensure_size), (gst_fdset_new), (gst_fdset_free),
(gst_fdset_set_mode), (gst_fdset_get_mode), (gst_fdset_add_fd),
(gst_fdset_remove_fd), (gst_fdset_fd_ctl_write),
(gst_fdset_fd_ctl_read), (gst_fdset_fd_has_closed),
(gst_fdset_fd_has_error), (gst_fdset_fd_can_read),
(gst_fdset_fd_can_write), (gst_fdset_wait):
* gst/tcp/gstfdset.h:
* gst/tcp/gstmultifdsink.c: (gst_unit_type_get_type),
(gst_multifdsink_class_init), (gst_multifdsink_init),
(gst_multifdsink_add), (gst_multifdsink_remove),
(gst_multifdsink_clear), (gst_multifdsink_get_stats),
(gst_multifdsink_remove_client_link),
(gst_multifdsink_handle_client_read),
(gst_multifdsink_client_queue_data),
(gst_multifdsink_client_queue_caps),
(gst_multifdsink_client_queue_buffer),
(gst_multifdsink_handle_client_write),
(gst_multifdsink_recover_client), (gst_multifdsink_queue_buffer),
(gst_multifdsink_handle_clients), (gst_multifdsink_set_property),
(gst_multifdsink_get_property), (gst_multifdsink_init_send),
(gst_multifdsink_close):
* gst/tcp/gstmultifdsink.h:
* gst/tcp/gsttcpserversink.c: (gst_tcpserversink_class_init),
(gst_tcpserversink_init), (gst_tcpserversink_handle_server_read),
(gst_tcpserversink_handle_wait), (gst_tcpserversink_init_send),
(gst_tcpserversink_close):
* gst/tcp/gsttcpserversink.h:
Abstracted away the select call, implemented poll (yes we ran into
the 1024 limit in production).
2004-08-11 Thomas Vander Stichele <thomas at apestaart dot org>
* gst/tcp/gsttcp.c:

2
gst/tcp/Makefile.am
View file

@ -16,6 +16,7 @@ libgsttcp_la_SOURCES = \
gsttcpplugin.c \
gsttcpsrc.c gsttcpsink.c \
gsttcp.c \
gstfdset.c \
gstmultifdsink.c \
gsttcpclientsrc.c gsttcpclientsink.c \
gsttcpserversrc.c gsttcpserversink.c
@ -32,6 +33,7 @@ noinst_HEADERS = \
gsttcpplugin.h \
gsttcpsrc.h gsttcpsink.h \
gsttcp.h \
gstfdset.h \
gstmultifdsink.h \
gsttcpclientsrc.h gsttcpclientsink.h \
gsttcpserversrc.h gsttcpserversink.h

368
gst/tcp/gstfdset.c Normal file
View file

@ -0,0 +1,368 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2004> Wim Taymans <wim@fluendo.com>
*
* gsttcpfdset.h: fdset datastructure
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#define MIN_POLLFDS 64
#define INIT_POLLFDS MIN_POLLFDS
#include <sys/poll.h>
#include "gstfdset.h"
GType
gst_fdset_mode_get_type (void)
{
static GType fdset_mode_type = 0;
static GEnumValue fdset_mode[] = {
{GST_FDSET_MODE_SELECT, "GST_FDSET_MODE_SELECT", "Select"},
{GST_FDSET_MODE_POLL, "GST_FDSET_MODE_POLL", "Poll"},
{GST_FDSET_MODE_EPOLL, "GST_FDSET_MODE_EPOLL", "EPoll"},
{0, NULL, NULL},
};
if (!fdset_mode_type) {
fdset_mode_type = g_enum_register_static ("GstFDSetModeType", fdset_mode);
}
return fdset_mode_type;
}
struct _GstFDSet
{
GstFDSetMode mode;
/* for poll */
struct pollfd *pollfds;
gint last_pollfds;
gint size;
gint free;
/* for select */
fd_set readfds, writefds; /* input */
fd_set testreadfds, testwritefds; /* output */
};
static gint
nearest_pow (gint num)
{
gint n = 1;
while (n < num)
n <<= 1;
return n;
}
static void
ensure_size (GstFDSet * set, gint len)
{
guint need = len * sizeof (struct pollfd);
if (need > set->size) {
need = nearest_pow (need);
need = MAX (need, MIN_POLLFDS * sizeof (struct pollfd));
set->pollfds = g_realloc (set->pollfds, need);
set->size = need;
}
}
GstFDSet *
gst_fdset_new (GstFDSetMode mode)
{
GstFDSet *nset;
nset = g_new0 (GstFDSet, 1);
nset->mode = mode;
switch (mode) {
case GST_FDSET_MODE_SELECT:
FD_ZERO (&nset->readfds);
FD_ZERO (&nset->writefds);
break;
case GST_FDSET_MODE_POLL:
nset->pollfds = NULL;
nset->free = 0;
nset->last_pollfds = 0;
ensure_size (nset, MIN_POLLFDS);
break;
case GST_FDSET_MODE_EPOLL:
g_warning ("implement me");
break;
default:
break;
}
return nset;
}
void
gst_fdset_free (GstFDSet * set)
{
switch (set->mode) {
case GST_FDSET_MODE_SELECT:
break;
case GST_FDSET_MODE_POLL:
g_free (set->pollfds);
break;
case GST_FDSET_MODE_EPOLL:
g_warning ("implement me");
break;
default:
break;
}
g_free (set);
}
void
gst_fdset_set_mode (GstFDSet * set, GstFDSetMode mode)
{
g_warning ("implement me");
}
GstFDSetMode
gst_fdset_get_mode (GstFDSet * set)
{
return set->mode;
}
void
gst_fdset_add_fd (GstFDSet * set, GstFD * fd)
{
switch (set->mode) {
case GST_FDSET_MODE_SELECT:
/* nothing */
break;
case GST_FDSET_MODE_POLL:
{
struct pollfd *nfd;
gint idx;
ensure_size (set, set->last_pollfds + 1);
idx = set->free;
if (idx == -1) {
/* find free space */
while (idx < set->last_pollfds) {
idx++;
if (set->pollfds[idx].fd == -1)
break;
}
}
nfd = &set->pollfds[idx];
nfd->fd = fd->fd;
nfd->events = 0;
nfd->revents = 0;
/* see if we have one fd more */
set->last_pollfds = MAX (idx + 1, set->last_pollfds);
fd->idx = idx;
set->free = -1;
break;
}
case GST_FDSET_MODE_EPOLL:
break;
}
}
void
gst_fdset_remove_fd (GstFDSet * set, GstFD * fd)
{
switch (set->mode) {
case GST_FDSET_MODE_SELECT:
/* nothing */
FD_CLR (fd->fd, &set->writefds);
FD_CLR (fd->fd, &set->readfds);
break;
case GST_FDSET_MODE_POLL:
{
set->pollfds[fd->idx].fd = -1;
set->pollfds[fd->idx].events = 0;
set->pollfds[fd->idx].revents = 0;
/* if we removed the last fd, we can lower the last_pollfds */
if (fd->idx + 1 == set->last_pollfds) {
set->last_pollfds--;
}
fd->idx = -1;
if (set->free == -1) {
set->free = fd->idx;
} else {
set->free = MIN (set->free, fd->idx);
}
break;
}
case GST_FDSET_MODE_EPOLL:
break;
}
}
void
gst_fdset_fd_ctl_write (GstFDSet * set, GstFD * fd, gboolean active)
{
switch (set->mode) {
case GST_FDSET_MODE_SELECT:
if (active)
FD_SET (fd->fd, &set->writefds);
else
FD_CLR (fd->fd, &set->writefds);
break;
case GST_FDSET_MODE_POLL:
{
set->pollfds[fd->idx].events = (active ? POLLOUT : 0);
break;
}
case GST_FDSET_MODE_EPOLL:
break;
}
}
void
gst_fdset_fd_ctl_read (GstFDSet * set, GstFD * fd, gboolean active)
{
switch (set->mode) {
case GST_FDSET_MODE_SELECT:
if (active)
FD_SET (fd->fd, &set->readfds);
else
FD_CLR (fd->fd, &set->readfds);
break;
case GST_FDSET_MODE_POLL:
{
set->pollfds[fd->idx].events = (active ? (POLLIN | POLLPRI) : 0);
break;
}
case GST_FDSET_MODE_EPOLL:
break;
}
}
gboolean
gst_fdset_fd_has_closed (GstFDSet * set, GstFD * fd)
{
gboolean res = FALSE;
switch (set->mode) {
case GST_FDSET_MODE_SELECT:
res = FALSE;
break;
case GST_FDSET_MODE_POLL:
res = (set->pollfds[fd->idx].revents & POLLHUP) != 0;
break;
case GST_FDSET_MODE_EPOLL:
break;
}
return res;
}
gboolean
gst_fdset_fd_has_error (GstFDSet * set, GstFD * fd)
{
gboolean res = FALSE;
switch (set->mode) {
case GST_FDSET_MODE_SELECT:
res = FALSE;
break;
case GST_FDSET_MODE_POLL:
res = (set->pollfds[fd->idx].revents & (POLLERR | POLLNVAL)) != 0;
break;
case GST_FDSET_MODE_EPOLL:
break;
}
return res;
}
gboolean
gst_fdset_fd_can_read (GstFDSet * set, GstFD * fd)
{
gboolean res = FALSE;
switch (set->mode) {
case GST_FDSET_MODE_SELECT:
res = FD_ISSET (fd->fd, &set->testreadfds);
break;
case GST_FDSET_MODE_POLL:
res = (set->pollfds[fd->idx].revents & (POLLIN | POLLPRI)) != 0;
break;
case GST_FDSET_MODE_EPOLL:
break;
}
return res;
}
gboolean
gst_fdset_fd_can_write (GstFDSet * set, GstFD * fd)
{
gboolean res = FALSE;
switch (set->mode) {
case GST_FDSET_MODE_SELECT:
res = FD_ISSET (fd->fd, &set->testwritefds);
break;
case GST_FDSET_MODE_POLL:
res = (set->pollfds[fd->idx].revents & POLLOUT) != 0;
break;
case GST_FDSET_MODE_EPOLL:
break;
}
return res;
}
int
gst_fdset_wait (GstFDSet * set, int timeout)
{
int res = -1;
switch (set->mode) {
case GST_FDSET_MODE_SELECT:
{
struct timeval tv;
struct timeval *tvptr = NULL;
set->testreadfds = set->readfds;
set->testwritefds = set->writefds;
if (timeout > 0) {
tv.tv_sec = timeout / 1000;
tv.tv_usec = timeout % 1000;
tvptr = &tv;
}
res =
select (FD_SETSIZE, &set->testreadfds, &set->testwritefds,
(fd_set *) 0, tvptr);
break;
}
case GST_FDSET_MODE_POLL:
/* we do not make a copy here. The polfds could change while
* executing this call but even if this should happen and cause
* problems, we can recover from it */
res = poll (set->pollfds, set->last_pollfds, timeout);
break;
case GST_FDSET_MODE_EPOLL:
break;
}
return res;
}

69
gst/tcp/gstfdset.h Normal file
View file

@ -0,0 +1,69 @@
/* GStreamer
* Copyright (C) <1999> Erik Walthinsen <omega@cse.ogi.edu>
* Copyright (C) <2004> Wim Taymans <wim@fluendo.com>
*
* gstfdset.h: fdset datastructure
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __GST_FDSET_H__
#define __GST_FDSET_H__
#include <gst/gst.h>
G_BEGIN_DECLS
typedef struct _GstFDSet GstFDSet;
typedef struct {
int fd;
gint idx;
gpointer data;
} GstFD;
typedef enum {
GST_FDSET_MODE_SELECT,
GST_FDSET_MODE_POLL,
GST_FDSET_MODE_EPOLL
} GstFDSetMode;
#define GST_TYPE_FDSET_MODE (gst_fdset_mode_get_type())
GType gst_fdset_mode_get_type (void);
GstFDSet* gst_fdset_new (GstFDSetMode mode);
void gst_fdset_free (GstFDSet *set);
void gst_fdset_set_mode (GstFDSet *set, GstFDSetMode mode);
GstFDSetMode gst_fdset_get_mode (GstFDSet *set);
void gst_fdset_add_fd (GstFDSet *set, GstFD *fd);
void gst_fdset_remove_fd (GstFDSet *set, GstFD *fd);
void gst_fdset_fd_ctl_write (GstFDSet *set, GstFD *fd, gboolean active);
void gst_fdset_fd_ctl_read (GstFDSet *set, GstFD *fd, gboolean active);
gboolean gst_fdset_fd_has_closed (GstFDSet *set, GstFD *fd);
gboolean gst_fdset_fd_has_error (GstFDSet *set, GstFD *fd);
gboolean gst_fdset_fd_can_read (GstFDSet *set, GstFD *fd);
gboolean gst_fdset_fd_can_write (GstFDSet *set, GstFD *fd);
int gst_fdset_wait (GstFDSet *set, int timeout);
G_END_DECLS
#endif /* __GST_FDSET_H__ */

186
gst/tcp/gstmultifdsink.c
View file

@ -24,6 +24,10 @@
#include <gst/gst-i18n-plugin.h>
#include <sys/ioctl.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/socket.h>
#ifdef HAVE_FIONREAD_IN_SYS_FILIO
#include <sys/filio.h>
@ -32,6 +36,8 @@
#include "gstmultifdsink.h"
#include "gsttcp-marshal.h"
#define NOT_IMPLEMENTED 0
/* the select call is also performed on the control sockets, that way
* we can send special commands to unblock or restart the select call */
#define CONTROL_RESTART 'R' /* restart the select call */
@ -39,15 +45,16 @@
#define CONTROL_SOCKETS(sink) sink->control_sock
#define WRITE_SOCKET(sink) sink->control_sock[1]
#define READ_SOCKET(sink) sink->control_sock[0]
#define SEND_COMMAND(sink, command) \
G_STMT_START { \
unsigned char c; c = command; \
write (WRITE_SOCKET(sink), &c, 1); \
write (WRITE_SOCKET(sink).fd, &c, 1); \
} G_STMT_END
#define READ_COMMAND(sink, command, res) \
G_STMT_START { \
res = read(READ_SOCKET(sink), &command, 1); \
res = read(READ_SOCKET(sink).fd, &command, 1); \
} G_STMT_END
/* elementfactory information */
@ -79,6 +86,7 @@ enum
/* this is really arbitrary choosen */
#define DEFAULT_PROTOCOL GST_TCP_PROTOCOL_TYPE_NONE
#define DEFAULT_MODE GST_FDSET_MODE_POLL
#define DEFAULT_BUFFERS_MAX -1
#define DEFAULT_BUFFERS_SOFT_MAX -1
#define DEFAULT_UNIT_TYPE GST_UNIT_TYPE_BUFFERS
@ -91,6 +99,7 @@ enum
{
ARG_0,
ARG_PROTOCOL,
ARG_MODE,
ARG_BUFFERS_QUEUED,
ARG_BYTES_QUEUED,
ARG_TIME_QUEUED,
@ -132,6 +141,7 @@ gst_recover_policy_get_type (void)
return recover_policy_type;
}
#if NOT_IMPLEMENTED
#define GST_TYPE_UNIT_TYPE (gst_unit_type_get_type())
static GType
gst_unit_type_get_type (void)
@ -149,6 +159,7 @@ gst_unit_type_get_type (void)
}
return unit_type_type;
}
#endif
#define GST_TYPE_CLIENT_STATUS (gst_client_status_get_type())
static GType
@ -241,6 +252,10 @@ gst_multifdsink_class_init (GstMultiFdSinkClass * klass)
g_object_class_install_property (gobject_class, ARG_PROTOCOL,
g_param_spec_enum ("protocol", "Protocol", "The protocol to wrap data in",
GST_TYPE_TCP_PROTOCOL_TYPE, DEFAULT_PROTOCOL, G_PARAM_READWRITE));
g_object_class_install_property (gobject_class, ARG_MODE,
g_param_spec_enum ("mode", "Mode",
"The mode for selecting activity on the fds", GST_TYPE_FDSET_MODE,
DEFAULT_MODE, G_PARAM_READWRITE));
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_BUFFERS_MAX,
g_param_spec_int ("buffers-max", "Buffers max",
@ -251,6 +266,7 @@ gst_multifdsink_class_init (GstMultiFdSinkClass * klass)
"Recover client when going over this limit (-1 = no limit)", -1,
G_MAXINT, DEFAULT_BUFFERS_SOFT_MAX, G_PARAM_READWRITE));
#if NOT_IMPLEMENTED
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_UNIT_TYPE,
g_param_spec_enum ("unit-type", "Units type",
"The unit to measure the max/soft-max/queued properties",
@ -263,11 +279,13 @@ gst_multifdsink_class_init (GstMultiFdSinkClass * klass)
g_param_spec_int ("units-soft-max", "Units soft max",
"Recover client when going over this limit (-1 = no limit)", -1,
G_MAXINT, DEFAULT_UNITS_SOFT_MAX, G_PARAM_READWRITE));
#endif
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_BUFFERS_QUEUED,
g_param_spec_uint ("buffers-queued", "Buffers queued",
"Number of buffers currently queued", 0, G_MAXUINT, 0,
G_PARAM_READABLE));
#if NOT_IMPLEMENTED
g_object_class_install_property (G_OBJECT_CLASS (klass), ARG_BYTES_QUEUED,
g_param_spec_uint ("bytes-queued", "Bytes queued",
"Number of bytes currently queued", 0, G_MAXUINT, 0,
@ -276,6 +294,7 @@ gst_multifdsink_class_init (GstMultiFdSinkClass * klass)
g_param_spec_uint64 ("time-queued", "Time queued",
"Number of time currently queued", 0, G_MAXUINT64, 0,
G_PARAM_READABLE));
#endif
g_object_class_install_property (gobject_class, ARG_RECOVER_POLICY,
g_param_spec_enum ("recover-policy", "Recover Policy",
@ -346,6 +365,7 @@ gst_multifdsink_init (GstMultiFdSink * this)
GST_FLAG_UNSET (this, GST_MULTIFDSINK_OPEN);
this->protocol = DEFAULT_PROTOCOL;
this->mode = DEFAULT_MODE;
this->clientslock = g_mutex_new ();
this->clients = NULL;
@ -359,18 +379,6 @@ gst_multifdsink_init (GstMultiFdSink * this)
this->timeout = DEFAULT_TIMEOUT;
}
static void
gst_multifdsink_debug_fdset (GstMultiFdSink * sink, fd_set * testfds)
{
int fd;
for (fd = 0; fd < FD_SETSIZE; fd++) {
if (FD_ISSET (fd, testfds)) {
GST_LOG_OBJECT (sink, "fd %d", fd);
}
}
}
void
gst_multifdsink_add (GstMultiFdSink * sink, int fd)
{
@ -381,7 +389,7 @@ gst_multifdsink_add (GstMultiFdSink * sink, int fd)
/* create client datastructure */
client = g_new0 (GstTCPClient, 1);
client->fd = fd;
client->fd.fd = fd;
client->status = GST_CLIENT_STATUS_OK;
client->bufpos = -1;
client->bufoffset = 0;
@ -404,7 +412,9 @@ gst_multifdsink_add (GstMultiFdSink * sink, int fd)
/* set the socket to non blocking */
fcntl (fd, F_SETFL, O_NONBLOCK);
/* we always read from a client */
FD_SET (fd, &sink->readfds);
gst_fdset_add_fd (sink->fdset, &client->fd);
gst_fdset_fd_ctl_read (sink->fdset, &client->fd, TRUE);
SEND_COMMAND (sink, CONTROL_RESTART);
g_mutex_unlock (sink->clientslock);
@ -428,9 +438,10 @@ gst_multifdsink_remove (GstMultiFdSink * sink, int fd)
client = (GstTCPClient *) clients->data;
next = g_list_next (clients);
if (client->fd == fd) {
if (client->fd.fd == fd) {
client->status = GST_CLIENT_STATUS_REMOVED;
gst_multifdsink_remove_client_link (sink, clients);
SEND_COMMAND (sink, CONTROL_RESTART);
break;
}
}
@ -454,6 +465,7 @@ gst_multifdsink_clear (GstMultiFdSink * sink)
client->status = GST_CLIENT_STATUS_REMOVED;
gst_multifdsink_remove_client_link (sink, clients);
}
SEND_COMMAND (sink, CONTROL_RESTART);
g_mutex_unlock (sink->clientslock);
}
@ -470,7 +482,7 @@ gst_multifdsink_get_stats (GstMultiFdSink * sink, int fd)
client = (GstTCPClient *) clients->data;
if (client->fd == fd) {
if (client->fd.fd == fd) {
GValue value = { 0 };
guint64 interval;
@ -525,48 +537,42 @@ gst_multifdsink_remove_client_link (GstMultiFdSink * sink, GList * link)
GTimeVal now;
GstTCPClient *client = (GstTCPClient *) link->data;
fd = client->fd;
fd = client->fd.fd;
/* FIXME: if we keep track of ip we can log it here and signal */
GST_DEBUG_OBJECT (sink, "removing client on fd %d", fd);
switch (client->status) {
case GST_CLIENT_STATUS_OK:
GST_WARNING_OBJECT (sink, "removing client %p with fd %d for no reason",
client, client->fd);
client, fd);
break;
case GST_CLIENT_STATUS_CLOSED:
GST_DEBUG_OBJECT (sink, "removing client %p with fd %d because of close",
client, client->fd);
client, fd);
break;
case GST_CLIENT_STATUS_REMOVED:
GST_DEBUG_OBJECT (sink,
"removing client %p with fd %d because the app removed it", client,
client->fd);
fd);
break;
case GST_CLIENT_STATUS_SLOW:
GST_INFO_OBJECT (sink,
"removing client %p with fd %d because it was too slow", client,
client->fd);
"removing client %p with fd %d because it was too slow", client, fd);
break;
case GST_CLIENT_STATUS_ERROR:
GST_WARNING_OBJECT (sink,
"removing client %p with fd %d because of error", client, client->fd);
"removing client %p with fd %d because of error", client, fd);
break;
default:
GST_WARNING_OBJECT (sink,
"removing client %p with fd %d with invalid reason", client,
client->fd);
"removing client %p with fd %d with invalid reason", client, fd);
break;
}
FD_CLR (fd, &sink->readfds);
FD_CLR (fd, &sink->writefds);
gst_fdset_remove_fd (sink->fdset, &client->fd);
if (close (fd) != 0) {
/* this is not really an error */
GST_DEBUG_OBJECT (sink, "error closing fd %d: %s", fd, g_strerror (errno));
}
SEND_COMMAND (sink, CONTROL_RESTART);
g_get_current_time (&now);
client->disconnect_time = GST_TIMEVAL_TO_TIME (now);
@ -596,7 +602,7 @@ gst_multifdsink_handle_client_read (GstMultiFdSink * sink,
int avail, fd;
gboolean ret;
fd = client->fd;
fd = client->fd.fd;
if (ioctl (fd, FIONREAD, &avail) < 0) {
GST_WARNING_OBJECT (sink, "ioctl failed for fd %d: %s",
@ -665,7 +671,7 @@ gst_multifdsink_client_queue_data (GstMultiFdSink * sink, GstTCPClient * client,
GST_BUFFER_SIZE (buf) = len;
GST_LOG_OBJECT (sink, "Queueing data of length %d for fd %d",
len, client->fd);
len, client->fd.fd);
client->sending = g_slist_append (client->sending, buf);
@ -683,7 +689,7 @@ gst_multifdsink_client_queue_caps (GstMultiFdSink * sink, GstTCPClient * client,
string = gst_caps_to_string (caps);
GST_DEBUG_OBJECT (sink, "Queueing caps %s for fd %d through GDP", string,
client->fd);
client->fd.fd);
g_free (string);
if (!gst_dp_packet_from_caps (caps, 0, &length, &header, &payload)) {
@ -708,7 +714,7 @@ gst_multifdsink_client_queue_buffer (GstMultiFdSink * sink,
if (!gst_dp_header_from_buffer (buffer, 0, &len, &header)) {
GST_DEBUG_OBJECT (sink,
"could not create header, removing client on fd %d", client->fd);
"could not create header, removing client on fd %d", client->fd.fd);
return FALSE;
}
gst_multifdsink_client_queue_data (sink, client, header, len);
@ -750,7 +756,7 @@ static gboolean
gst_multifdsink_handle_client_write (GstMultiFdSink * sink,
GstTCPClient * client)
{
int fd = client->fd;
int fd = client->fd.fd;
gboolean more;
gboolean res;
GstClockTime now;
@ -803,7 +809,7 @@ gst_multifdsink_handle_client_write (GstMultiFdSink * sink,
if (client->bufpos == -1) {
/* client is too fast, remove from write queue until new buffer is
* available */
FD_CLR (fd, &sink->writefds);
gst_fdset_fd_ctl_write (sink->fdset, &client->fd, FALSE);
return TRUE;
} else {
/* client can pick a buffer from the global queue */
@ -885,7 +891,7 @@ gst_multifdsink_recover_client (GstMultiFdSink * sink, GstTCPClient * client)
GST_WARNING_OBJECT (sink,
"client %p with fd %d is lagging at %d, recover using policy %d", client,
client->fd, client->bufpos, sink->recover_policy);
client->fd.fd, client->bufpos, sink->recover_policy);
switch (sink->recover_policy) {
case GST_RECOVER_POLICY_NONE:
@ -961,7 +967,7 @@ gst_multifdsink_queue_buffer (GstMultiFdSink * sink, GstBuffer * buf)
client->bufpos++;
GST_LOG_OBJECT (sink, "client %p with fd %d at position %d",
client, client->fd, client->bufpos);
client, client->fd.fd, client->bufpos);
/* check soft max if needed, recover client */
if (sink->units_soft_max > 0 && client->bufpos >= sink->units_soft_max) {
gint newpos;
@ -971,10 +977,11 @@ gst_multifdsink_queue_buffer (GstMultiFdSink * sink, GstBuffer * buf)
client->bufpos = newpos;
client->discont = TRUE;
GST_WARNING_OBJECT (sink, "client %p with fd %d position reset to %d",
client, client->fd, client->bufpos);
client, client->fd.fd, client->bufpos);
} else {
GST_WARNING_OBJECT (sink,
"client %p with fd %d not recovering position", client, client->fd);
"client %p with fd %d not recovering position", client,
client->fd.fd);
}
}
/* check hard max and timeout, remove client */
@ -983,20 +990,18 @@ gst_multifdsink_queue_buffer (GstMultiFdSink * sink, GstBuffer * buf)
&& now - client->last_activity_time > sink->timeout)) {
/* remove client */
GST_WARNING_OBJECT (sink, "client %p with fd %d is too slow, removing",
client, client->fd);
FD_CLR (client->fd, &sink->readfds);
FD_CLR (client->fd, &sink->writefds);
client, client->fd.fd);
/* remove the client, the fd set will be cleared and the select thread will
* be signaled */
client->status = GST_CLIENT_STATUS_SLOW;
gst_multifdsink_remove_client_link (sink, clients);
/* cannot send data to this client anymore. need to signal the select thread that
* the fd_set changed */
need_signal = TRUE;
/* set client to invalid position while being removed */
client->bufpos = -1;
need_signal = TRUE;
} else if (client->bufpos == 0) {
/* can send data to this client now. need to signal the select thread that
* the fd_set changed */
FD_SET (client->fd, &sink->writefds);
gst_fdset_fd_ctl_write (sink->fdset, &client->fd, TRUE);
need_signal = TRUE;
}
/* keep track of maximum buffer usage */
@ -1038,7 +1043,6 @@ static void
gst_multifdsink_handle_clients (GstMultiFdSink * sink)
{
int result;
fd_set testreadfds, testwritefds;
GList *clients, *next;
gboolean try_again;
GstMultiFdSinkClass *fclass;
@ -1054,20 +1058,11 @@ gst_multifdsink_handle_clients (GstMultiFdSink * sink)
* - server socket input (ie, new client connections)
* - client socket input (ie, clients saying goodbye)
* - client socket output (ie, client reads) */
testwritefds = sink->writefds;
testreadfds = sink->readfds;
GST_LOG_OBJECT (sink, "doing select on server + client fds for reads");
gst_multifdsink_debug_fdset (sink, &testreadfds);
GST_LOG_OBJECT (sink, "doing select on client fds for writes");
gst_multifdsink_debug_fdset (sink, &testwritefds);
result =
select (FD_SETSIZE, &testreadfds, &testwritefds, (fd_set *) 0, NULL);
result = gst_fdset_wait (sink->fdset, -1);
/* < 0 is an error, 0 just means a timeout happened */
if (result < 0) {
GST_WARNING_OBJECT (sink, "select failed: %s", g_strerror (errno));
GST_WARNING_OBJECT (sink, "wait failed: %s", g_strerror (errno));
if (errno == EBADF) {
/* ok, so one of the fds is invalid. We loop over them to find one
* that gives an error to the F_GETFL fcntl. */
@ -1081,7 +1076,7 @@ gst_multifdsink_handle_clients (GstMultiFdSink * sink)
client = (GstTCPClient *) clients->data;
next = g_list_next (clients);
fd = client->fd;
fd = client->fd.fd;
res = fcntl (fd, F_GETFL, &flags);
if (res == -1) {
@ -1106,34 +1101,35 @@ gst_multifdsink_handle_clients (GstMultiFdSink * sink)
return;
}
} else {
GST_LOG_OBJECT (sink, "%d sockets had action", result);
GST_LOG_OBJECT (sink, "done select on server/client fds for reads");
gst_multifdsink_debug_fdset (sink, &testreadfds);
GST_LOG_OBJECT (sink, "done select on client fds for writes");
gst_multifdsink_debug_fdset (sink, &testwritefds);
GST_INFO_OBJECT (sink, "wait done: %d", result);
/* read all commands */
if (FD_ISSET (READ_SOCKET (sink), &testreadfds)) {
if (gst_fdset_fd_can_read (sink->fdset, &READ_SOCKET (sink))) {
GST_INFO_OBJECT (sink, "have a command");
while (TRUE) {
gchar command;
int res;
READ_COMMAND (sink, command, res);
if (res < 0) {
GST_INFO_OBJECT (sink, "no more commands");
/* no more commands */
break;
}
switch (command) {
case CONTROL_RESTART:
GST_INFO_OBJECT (sink, "restart");
/* need to restart the select call as the fd_set changed */
try_again = TRUE;
break;
/* need to restart the select call as the fd_set changed */
case CONTROL_STOP:
GST_INFO_OBJECT (sink, "stop");
/* stop this function */
stop = TRUE;
break;
default:
GST_WARNING_OBJECT (sink, "unkown");
g_warning ("multifdsink: unknown control message received");
break;
}
@ -1145,14 +1141,13 @@ gst_multifdsink_handle_clients (GstMultiFdSink * sink)
}
} while (try_again);
if (fclass->select)
fclass->select (sink, &testreadfds, &testwritefds);
if (fclass->wait)
fclass->wait (sink, sink->fdset);
/* Check the reads */
g_mutex_lock (sink->clientslock);
for (clients = sink->clients; clients; clients = next) {
GstTCPClient *client;
int fd;
client = (GstTCPClient *) clients->data;
next = g_list_next (clients);
@ -1162,16 +1157,24 @@ gst_multifdsink_handle_clients (GstMultiFdSink * sink)
continue;
}
fd = client->fd;
if (FD_ISSET (fd, &testreadfds)) {
if (gst_fdset_fd_has_closed (sink->fdset, &client->fd)) {
client->status = GST_CLIENT_STATUS_CLOSED;
gst_multifdsink_remove_client_link (sink, clients);
continue;
}
if (gst_fdset_fd_has_error (sink->fdset, &client->fd)) {
client->status = GST_CLIENT_STATUS_ERROR;
gst_multifdsink_remove_client_link (sink, clients);
continue;
}
if (gst_fdset_fd_can_read (sink->fdset, &client->fd)) {
/* handle client read */
if (!gst_multifdsink_handle_client_read (sink, client)) {
gst_multifdsink_remove_client_link (sink, clients);
continue;
}
}
if (FD_ISSET (fd, &testwritefds)) {
if (gst_fdset_fd_can_write (sink->fdset, &client->fd)) {
/* handle client write */
if (!gst_multifdsink_handle_client_write (sink, client)) {
gst_multifdsink_remove_client_link (sink, clients);
@ -1243,6 +1246,9 @@ gst_multifdsink_set_property (GObject * object, guint prop_id,
case ARG_PROTOCOL:
multifdsink->protocol = g_value_get_enum (value);
break;
case ARG_MODE:
multifdsink->mode = g_value_get_enum (value);
break;
case ARG_BUFFERS_MAX:
multifdsink->units_max = g_value_get_int (value);
break;
@ -1284,6 +1290,9 @@ gst_multifdsink_get_property (GObject * object, guint prop_id, GValue * value,
case ARG_PROTOCOL:
g_value_set_enum (value, multifdsink->protocol);
break;
case ARG_MODE:
g_value_set_enum (value, multifdsink->mode);
break;
case ARG_BUFFERS_MAX:
g_value_set_int (value, multifdsink->units_max);
break;
@ -1333,20 +1342,26 @@ static gboolean
gst_multifdsink_init_send (GstMultiFdSink * this)
{
GstMultiFdSinkClass *fclass;
int control_socket[2];
fclass = GST_MULTIFDSINK_GET_CLASS (this);
FD_ZERO (&this->readfds);
FD_ZERO (&this->writefds);
GST_INFO_OBJECT (this, "starting in mode %d", this->mode);
this->fdset = gst_fdset_new (this->mode);
if (socketpair (PF_UNIX, SOCK_STREAM, 0, CONTROL_SOCKETS (this)) < 0) {
if (socketpair (PF_UNIX, SOCK_STREAM, 0, control_socket) < 0) {
GST_ELEMENT_ERROR (this, RESOURCE, OPEN_READ_WRITE, (NULL),
GST_ERROR_SYSTEM);
return FALSE;
}
FD_SET (READ_SOCKET (this), &this->readfds);
fcntl (READ_SOCKET (this), F_SETFL, O_NONBLOCK);
fcntl (WRITE_SOCKET (this), F_SETFL, O_NONBLOCK);
READ_SOCKET (this).fd = control_socket[0];
WRITE_SOCKET (this).fd = control_socket[1];
gst_fdset_add_fd (this->fdset, &READ_SOCKET (this));
gst_fdset_fd_ctl_read (this->fdset, &READ_SOCKET (this), TRUE);
fcntl (READ_SOCKET (this).fd, F_SETFL, O_NONBLOCK);
fcntl (WRITE_SOCKET (this).fd, F_SETFL, O_NONBLOCK);
this->streamheader = NULL;
this->bytes_to_serve = 0;
@ -1375,8 +1390,9 @@ gst_multifdsink_close (GstMultiFdSink * this)
SEND_COMMAND (this, CONTROL_STOP);
g_thread_join (this->thread);
close (READ_SOCKET (this));
close (WRITE_SOCKET (this));
close (READ_SOCKET (this).fd);
close (WRITE_SOCKET (this).fd);
gst_fdset_remove_fd (this->fdset, &READ_SOCKET (this));
if (this->streamheader) {
GSList *l;
@ -1389,6 +1405,8 @@ gst_multifdsink_close (GstMultiFdSink * this)
if (fclass->close)
fclass->close (this);
gst_fdset_free (this->fdset);
}
static GstElementStateReturn

28
gst/tcp/gstmultifdsink.h
View file

@ -29,20 +29,8 @@
extern "C" {
#endif /* __cplusplus */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <errno.h>
#include <string.h>
#include <sys/time.h>
#include <sys/types.h>
#include <netinet/in.h>
#include <netdb.h>
#include <sys/socket.h>
#include <sys/wait.h>
#include <fcntl.h>
#include <arpa/inet.h>
#include "gsttcp.h"
#include "gstfdset.h"
#define GST_TYPE_MULTIFDSINK \
(gst_multifdsink_get_type())
@ -94,7 +82,8 @@ typedef enum
/* structure for a client
* */
typedef struct {
int fd;
GstFD fd;
gint bufpos; /* position of this client in the global queue */
GstClientStatus status;
@ -131,10 +120,13 @@ struct _GstMultiFdSink {
GMutex *clientslock; /* lock to protect the clients list */
GList *clients; /* list of clients we are serving */
fd_set readfds; /* all the client file descriptors that we can read from */
fd_set writefds; /* all the client file descriptors that we can write to */
GstFDSetMode mode;
GstFDSet *fdset;
int control_sock[2]; /* sockets for controlling the select call */
//fd_set readfds; /* all the client file descriptors that we can read from */
//fd_set writefds; /* all the client file descriptors that we can write to */
GstFD control_sock[2];/* sockets for controlling the select call */
GSList *streamheader; /* GSList of GstBuffers to use as streamheader */
GstTCPProtocolType protocol;
@ -168,7 +160,7 @@ struct _GstMultiFdSinkClass {
/* vtable */
gboolean (*init) (GstMultiFdSink *sink);
gboolean (*select) (GstMultiFdSink *sink, fd_set *readfds, fd_set *writefds);
gboolean (*wait) (GstMultiFdSink *sink, GstFDSet *set);
gboolean (*close) (GstMultiFdSink *sink);
/* signals */

46
gst/tcp/gsttcpserversink.c
View file

@ -57,8 +57,8 @@ static void gst_tcpserversink_base_init (gpointer g_class);
static void gst_tcpserversink_class_init (GstTCPServerSink * klass);
static void gst_tcpserversink_init (GstTCPServerSink * tcpserversink);
static gboolean gst_tcpserversink_handle_select (GstMultiFdSink * sink,
fd_set * readfds, fd_set * writefds);
static gboolean gst_tcpserversink_handle_wait (GstMultiFdSink * sink,
GstFDSet * set);
static gboolean gst_tcpserversink_init_send (GstMultiFdSink * this);
static gboolean gst_tcpserversink_close (GstMultiFdSink * this);
@ -129,7 +129,7 @@ gst_tcpserversink_class_init (GstTCPServerSink * klass)
gobject_class->get_property = gst_tcpserversink_get_property;
gstmultifdsink_class->init = gst_tcpserversink_init_send;
gstmultifdsink_class->select = gst_tcpserversink_handle_select;
gstmultifdsink_class->wait = gst_tcpserversink_handle_wait;
gstmultifdsink_class->close = gst_tcpserversink_close;
GST_DEBUG_CATEGORY_INIT (tcpserversink_debug, "tcpserversink", 0, "TCP sink");
@ -142,7 +142,7 @@ gst_tcpserversink_init (GstTCPServerSink * this)
/* should support as minimum 576 for IPV4 and 1500 for IPV6 */
/* this->mtu = 1500; */
this->server_sock_fd = -1;
this->server_sock.fd = -1;
}
/* handle a read request on the server,
@ -156,7 +156,7 @@ gst_tcpserversink_handle_server_read (GstTCPServerSink * sink)
int client_address_len;
client_sock_fd =
accept (sink->server_sock_fd, (struct sockaddr *) &client_address,
accept (sink->server_sock.fd, (struct sockaddr *) &client_address,
&client_address_len);
if (client_sock_fd == -1) {
GST_ELEMENT_ERROR (sink, RESOURCE, OPEN_WRITE, (NULL),
@ -173,12 +173,11 @@ gst_tcpserversink_handle_server_read (GstTCPServerSink * sink)
}
static gboolean
gst_tcpserversink_handle_select (GstMultiFdSink * sink,
fd_set * readfds, fd_set * writefds)
gst_tcpserversink_handle_wait (GstMultiFdSink * sink, GstFDSet * set)
{
GstTCPServerSink *this = GST_TCPSERVERSINK (sink);
if (FD_ISSET (this->server_sock_fd, readfds)) {
if (gst_fdset_fd_can_read (set, &this->server_sock)) {
/* handle new client connection on server socket */
if (!gst_tcpserversink_handle_server_read (this)) {
GST_ELEMENT_ERROR (this, RESOURCE, READ, (NULL),
@ -245,22 +244,22 @@ gst_tcpserversink_init_send (GstMultiFdSink * parent)
GstTCPServerSink *this = GST_TCPSERVERSINK (parent);
/* create sending server socket */
if ((this->server_sock_fd = socket (AF_INET, SOCK_STREAM, 0)) == -1) {
if ((this->server_sock.fd = socket (AF_INET, SOCK_STREAM, 0)) == -1) {
GST_ELEMENT_ERROR (this, RESOURCE, OPEN_WRITE, (NULL), GST_ERROR_SYSTEM);
return FALSE;
}
GST_DEBUG_OBJECT (this, "opened sending server socket with fd %d",
this->server_sock_fd);
this->server_sock.fd);
/* make address reusable */
if (setsockopt (this->server_sock_fd, SOL_SOCKET, SO_REUSEADDR, &ret,
if (setsockopt (this->server_sock.fd, SOL_SOCKET, SO_REUSEADDR, &ret,
sizeof (int)) < 0) {
GST_ELEMENT_ERROR (this, RESOURCE, SETTINGS, (NULL),
("Could not setsockopt: %s", g_strerror (errno)));
return FALSE;
}
/* keep connection alive; avoids SIGPIPE during write */
if (setsockopt (this->server_sock_fd, SOL_SOCKET, SO_KEEPALIVE, &ret,
if (setsockopt (this->server_sock.fd, SOL_SOCKET, SO_KEEPALIVE, &ret,
sizeof (int)) < 0) {
GST_ELEMENT_ERROR (this, RESOURCE, SETTINGS, (NULL),
("Could not setsockopt: %s", g_strerror (errno)));
@ -275,7 +274,7 @@ gst_tcpserversink_init_send (GstMultiFdSink * parent)
/* bind it */
GST_DEBUG_OBJECT (this, "binding server socket to address");
ret = bind (this->server_sock_fd, (struct sockaddr *) &this->server_sin,
ret = bind (this->server_sock.fd, (struct sockaddr *) &this->server_sin,
sizeof (this->server_sin));
if (ret) {
@ -289,20 +288,23 @@ gst_tcpserversink_init_send (GstMultiFdSink * parent)
}
/* set the server socket to nonblocking */
fcntl (this->server_sock_fd, F_SETFL, O_NONBLOCK);
fcntl (this->server_sock.fd, F_SETFL, O_NONBLOCK);
GST_DEBUG_OBJECT (this, "listening on server socket %d with queue of %d",
this->server_sock_fd, TCP_BACKLOG);
if (listen (this->server_sock_fd, TCP_BACKLOG) == -1) {
this->server_sock.fd, TCP_BACKLOG);
if (listen (this->server_sock.fd, TCP_BACKLOG) == -1) {
GST_ELEMENT_ERROR (this, RESOURCE, OPEN_READ, (NULL),
("Could not listen on server socket: %s", g_strerror (errno)));
return FALSE;
}
GST_DEBUG_OBJECT (this,
"listened on server socket %d, returning from connection setup",
this->server_sock_fd);
this->server_sock.fd);
FD_SET (this->server_sock_fd, &parent->readfds);
gst_fdset_add_fd (parent->fdset, &this->server_sock);
gst_fdset_fd_ctl_read (parent->fdset, &this->server_sock, TRUE);
//FD_SET (this->server_sock_fd, &parent->readfds);
return TRUE;
}
@ -312,9 +314,11 @@ gst_tcpserversink_close (GstMultiFdSink * parent)
{
GstTCPServerSink *this = GST_TCPSERVERSINK (parent);
if (this->server_sock_fd != -1) {
close (this->server_sock_fd);
this->server_sock_fd = -1;
if (this->server_sock.fd != -1) {
close (this->server_sock.fd);
this->server_sock.fd = -1;
gst_fdset_remove_fd (parent->fdset, &this->server_sock);
}
return TRUE;
}

2
gst/tcp/gsttcpserversink.h
View file

@ -73,7 +73,7 @@ struct _GstTCPServerSink {
struct sockaddr_in server_sin;
/* socket */
int server_sock_fd;
GstFD server_sock;
};
struct _GstTCPServerSinkClass {