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examples: add cgroups example

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This commit is contained in:
Wim Taymans 2013-07-10 20:57:12 +02:00
parent e788a9ca60
commit 5c6bb3052f
3 changed files with 267 additions and 2 deletions
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4
configure.ac
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@ -229,6 +229,10 @@ AC_SUBST([GST_OBJ_CFLAGS])
GST_OBJ_LIBS="\$(top_builddir)/gst/rtsp-server/libgstrtspserver-$GST_API_VERSION.la \$(GST_ALL_LIBS)"
AC_SUBST([GST_OBJ_LIBS])
PKG_CHECK_MODULES(LIBCGROUP, libcgroup >= 0.26, HAVE_LIBCGROUP="yes", HAVE_LIBCGROUP="no")
AC_SUBST(LIBCGROUP_CFLAGS)
AC_SUBST(LIBCGROUP_LIBS)
dnl this really should only contain flags, not libs - they get added before
dnl whatevertarget_LIBS and -L flags here affect the rest of the linking

4
examples/Makefile.am
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@ -1,8 +1,8 @@
noinst_PROGRAMS = test-video test-ogg test-mp4 test-readme \
test-launch test-sdp test-uri test-auth \
test-multicast test-multicast2
test-multicast test-multicast2 test-cgroups
#INCLUDES = -I$(top_srcdir) -I$(srcdir)
AM_CFLAGS = $(GST_OBJ_CFLAGS)
AM_LDFLAGS = $(GST_OBJ_LIBS) $(GIO_LIBS)
AM_LDFLAGS = $(GST_OBJ_LIBS) $(GIO_LIBS) $(LIBCGROUP_LIBS)

261
examples/test-cgroups.c Normal file
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@ -0,0 +1,261 @@
/* GStreamer
* Copyright (C) 2013 Wim Taymans <wim.taymans at gmail.com>
*
* 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., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include <libcgroup.h>
#include <gst/gst.h>
#include <gst/rtsp-server/rtsp-server.h>
typedef struct _GstRTSPCGroupPool GstRTSPCGroupPool;
typedef struct _GstRTSPCGroupPoolClass GstRTSPCGroupPoolClass;
#define GST_TYPE_RTSP_CGROUP_POOL (gst_rtsp_cgroup_pool_get_type ())
#define GST_IS_RTSP_CGROUP_POOL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_RTSP_CGROUP_POOL))
#define GST_IS_RTSP_CGROUP_POOL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_RTSP_CGROUP_POOL))
#define GST_RTSP_CGROUP_POOL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_RTSP_CGROUP_POOL, GstRTSPCGroupPoolClass))
#define GST_RTSP_CGROUP_POOL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_RTSP_CGROUP_POOL, GstRTSPCGroupPool))
#define GST_RTSP_CGROUP_POOL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_RTSP_CGROUP_POOL, GstRTSPCGroupPoolClass))
#define GST_RTSP_CGROUP_POOL_CAST(obj) ((GstRTSPCGroupPool*)(obj))
#define GST_RTSP_CGROUP_POOL_CLASS_CAST(klass) ((GstRTSPCGroupPoolClass*)(klass))
struct _GstRTSPCGroupPool
{
GstRTSPThreadPool parent;
struct cgroup *user;
struct cgroup *admin;
};
struct _GstRTSPCGroupPoolClass
{
GstRTSPThreadPoolClass parent_class;
};
static GQuark thread_cgroup;
static void gst_rtsp_cgroup_pool_finalize (GObject * obj);
static void default_thread_enter (GstRTSPThreadPool * pool,
GstRTSPThread * thread);
static void default_configure_thread (GstRTSPThreadPool * pool,
GstRTSPThread * thread, GstRTSPClientState * state);
G_DEFINE_TYPE (GstRTSPCGroupPool, gst_rtsp_cgroup_pool,
GST_TYPE_RTSP_THREAD_POOL);
static void
gst_rtsp_cgroup_pool_class_init (GstRTSPCGroupPoolClass * klass)
{
GObjectClass *gobject_class;
GstRTSPThreadPoolClass *tpool_class;
gobject_class = G_OBJECT_CLASS (klass);
tpool_class = GST_RTSP_THREAD_POOL_CLASS (klass);
gobject_class->finalize = gst_rtsp_cgroup_pool_finalize;
tpool_class->configure_thread = default_configure_thread;
tpool_class->thread_enter = default_thread_enter;
thread_cgroup = g_quark_from_string ("cgroup.pool.thread.cgroup");
cgroup_init ();
}
static void
gst_rtsp_cgroup_pool_init (GstRTSPCGroupPool * pool)
{
pool->user = cgroup_new_cgroup ("user");
g_assert (cgroup_add_controller (pool->user, "cpu") != NULL);
pool->admin = cgroup_new_cgroup ("admin");
g_assert (cgroup_add_controller (pool->admin, "cpu") != NULL);
}
static void
gst_rtsp_cgroup_pool_finalize (GObject * obj)
{
GstRTSPCGroupPool *pool = GST_RTSP_CGROUP_POOL (obj);
GST_INFO ("finalize pool %p", pool);
cgroup_free (&pool->user);
cgroup_free (&pool->admin);
G_OBJECT_CLASS (gst_rtsp_cgroup_pool_parent_class)->finalize (obj);
}
static void
default_thread_enter (GstRTSPThreadPool * pool, GstRTSPThread * thread)
{
struct cgroup *cgroup;
cgroup = gst_mini_object_get_qdata (GST_MINI_OBJECT (thread), thread_cgroup);
if (cgroup) {
gint res = 0;
res = cgroup_attach_task (cgroup);
if (res != 0)
GST_ERROR ("error: %d (%s)", res, cgroup_strerror (res));
}
}
static void
default_configure_thread (GstRTSPThreadPool * pool,
GstRTSPThread * thread, GstRTSPClientState * state)
{
GstRTSPCGroupPool *cpool = GST_RTSP_CGROUP_POOL (pool);
const gchar *cls;
struct cgroup *cgroup;
if (state->token)
cls = gst_rtsp_token_get_string (state->token, "cgroup.pool.media.class");
else
cls = NULL;
GST_DEBUG ("manage cgroup %s", cls);
if (!g_strcmp0 (cls, "admin"))
cgroup = cpool->admin;
else
cgroup = cpool->user;
/* attach the cgroup to the thread */
gst_mini_object_set_qdata (GST_MINI_OBJECT (thread), thread_cgroup,
cgroup, NULL);
}
static gboolean
timeout (GstRTSPServer * server)
{
GstRTSPSessionPool *pool;
pool = gst_rtsp_server_get_session_pool (server);
gst_rtsp_session_pool_cleanup (pool);
g_object_unref (pool);
return TRUE;
}
int
main (int argc, char *argv[])
{
GMainLoop *loop;
GstRTSPServer *server;
GstRTSPMountPoints *mounts;
GstRTSPMediaFactory *factory;
GstRTSPAuth *auth;
GstRTSPToken *token;
gchar *basic;
GstStructure *s;
GstRTSPPermissions *permissions;
GstRTSPThreadPool *thread_pool;
gst_init (&argc, &argv);
loop = g_main_loop_new (NULL, FALSE);
/* create a server instance */
server = gst_rtsp_server_new ();
/* get the mounts for this server, every server has a default mapper object
* that be used to map uri mount points to media factories */
mounts = gst_rtsp_server_get_mount_points (server);
/* make a media factory for a test stream. The default media factory can use
* gst-launch syntax to create pipelines.
* any launch line works as long as it contains elements named pay%d. Each
* element with pay%d names will be a stream */
factory = gst_rtsp_media_factory_new ();
gst_rtsp_media_factory_set_launch (factory, "( "
"videotestsrc ! video/x-raw,width=640,height=480,framerate=50/1 ! "
"x264enc ! rtph264pay name=pay0 pt=96 "
"audiotestsrc ! audio/x-raw,rate=8000 ! "
"alawenc ! rtppcmapay name=pay1 pt=97 " ")");
/* attach the test factory to the /test url */
gst_rtsp_mount_points_add_factory (mounts, "/test", factory);
/* allow user and admin to access this resource */
permissions = gst_rtsp_permissions_new ();
gst_rtsp_permissions_add_role (permissions, "user",
gst_structure_new ("user",
"media.factory.access", G_TYPE_BOOLEAN, TRUE,
"media.factory.construct", G_TYPE_BOOLEAN, TRUE, NULL));
gst_rtsp_permissions_add_role (permissions, "admin",
gst_structure_new ("admin",
"media.factory.access", G_TYPE_BOOLEAN, TRUE,
"media.factory.construct", G_TYPE_BOOLEAN, TRUE, NULL));
gst_rtsp_media_factory_set_permissions (factory, permissions);
gst_rtsp_permissions_unref (permissions);
/* don't need the ref to the mapper anymore */
g_object_unref (mounts);
/* make a new authentication manager */
auth = gst_rtsp_auth_new ();
/* make user token */
token = gst_rtsp_token_new ();
s = gst_rtsp_token_writable_structure (token);
gst_structure_set (s, "cgroup.pool.media.class", G_TYPE_STRING, "user", NULL);
gst_structure_set (s, "media.factory.role", G_TYPE_STRING, "user", NULL);
basic = gst_rtsp_auth_make_basic ("user", "password");
gst_rtsp_auth_add_basic (auth, basic, token);
g_free (basic);
gst_rtsp_token_unref (token);
/* make admin token */
token = gst_rtsp_token_new ();
s = gst_rtsp_token_writable_structure (token);
gst_structure_set (s, "cgroup.pool.media.class", G_TYPE_STRING, "admin",
NULL);
gst_structure_set (s, "media.factory.role", G_TYPE_STRING, "admin", NULL);
basic = gst_rtsp_auth_make_basic ("admin", "power");
gst_rtsp_auth_add_basic (auth, basic, token);
g_free (basic);
gst_rtsp_token_unref (token);
/* set as the server authentication manager */
gst_rtsp_server_set_auth (server, auth);
g_object_unref (auth);
thread_pool = g_object_new (GST_TYPE_RTSP_CGROUP_POOL, NULL);
gst_rtsp_server_set_thread_pool (server, thread_pool);
g_object_unref (thread_pool);
/* attach the server to the default maincontext */
if (gst_rtsp_server_attach (server, NULL) == 0)
goto failed;
g_timeout_add_seconds (2, (GSourceFunc) timeout, server);
/* start serving */
g_print ("stream with user:password ready at rtsp://127.0.0.1:8554/test\n");
g_print ("stream with admin:power ready at rtsp://127.0.0.1:8554/test\n");
g_main_loop_run (loop);
return 0;
/* ERRORS */
failed:
{
g_print ("failed to attach the server\n");
return -1;
}
}