mirror of
https://gitlab.freedesktop.org/gstreamer/gstreamer.git
synced 2024-11-23 10:11:08 +00:00
thread-pool: add object to manage threads
Add an object to manage the client and media threads.
This commit is contained in:
Wim Taymans
parent
1a0c7051aa
commit
25269c7b1a
3 changed files with 628 additions and 0 deletions
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@ -3,6 +3,7 @@ public_headers = \
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rtsp-address-pool.h \
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rtsp-params.h \
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rtsp-sdp.h \
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rtsp-thread-pool.h \
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rtsp-media.h \
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rtsp-media-factory.h \
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rtsp-media-factory-uri.h \
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@ -22,6 +23,7 @@ c_sources = \
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rtsp-address-pool.c \
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rtsp-params.c \
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rtsp-sdp.c \
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rtsp-thread-pool.c \
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rtsp-media.c \
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rtsp-media-factory.c \
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rtsp-media-factory-uri.c \
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461
gst/rtsp-server/rtsp-thread-pool.c
Normal file
461
gst/rtsp-server/rtsp-thread-pool.c
Normal file
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@ -0,0 +1,461 @@
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/* GStreamer
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* Copyright (C) 2013 Wim Taymans <wim.taymans at gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <string.h>
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#include "rtsp-thread-pool.h"
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typedef struct _GstRTSPThreadImpl
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{
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GstRTSPThread thread;
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gint reused;
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} GstRTSPThreadImpl;
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GST_DEFINE_MINI_OBJECT_TYPE (GstRTSPThread, gst_rtsp_thread);
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static void gst_rtsp_thread_init (GstRTSPThreadImpl * impl);
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static void
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_gst_rtsp_thread_free (GstRTSPThreadImpl * impl)
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{
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GST_DEBUG ("free thread %p", impl);
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g_main_loop_unref (impl->thread.loop);
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g_main_context_unref (impl->thread.context);
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g_slice_free1 (sizeof (GstRTSPThreadImpl), impl);
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}
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static GstRTSPThread *
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_gst_rtsp_thread_copy (GstRTSPThreadImpl * impl)
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{
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GstRTSPThreadImpl *copy;
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GST_DEBUG ("copy thread %p", impl);
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copy = g_slice_new0 (GstRTSPThreadImpl);
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gst_rtsp_thread_init (copy);
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copy->thread.context = g_main_context_ref (impl->thread.context);
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copy->thread.loop = g_main_loop_ref (impl->thread.loop);
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return GST_RTSP_THREAD (copy);
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}
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static void
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gst_rtsp_thread_init (GstRTSPThreadImpl * impl)
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{
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gst_mini_object_init (GST_MINI_OBJECT_CAST (impl), 0,
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GST_TYPE_RTSP_THREAD,
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(GstMiniObjectCopyFunction) _gst_rtsp_thread_copy, NULL,
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(GstMiniObjectFreeFunction) _gst_rtsp_thread_free);
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g_atomic_int_set (&impl->reused, 1);
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}
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/**
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* gst_rtsp_thread_new:
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*
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* Create a new thread object that can run a mainloop.
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*
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* Returns: a #GstRTSPThread.
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*/
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GstRTSPThread *
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gst_rtsp_thread_new (void)
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{
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GstRTSPThreadImpl *impl;
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impl = g_slice_new0 (GstRTSPThreadImpl);
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gst_rtsp_thread_init (impl);
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impl->thread.context = g_main_context_new ();
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impl->thread.loop = g_main_loop_new (impl->thread.context, TRUE);
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return GST_RTSP_THREAD (impl);
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}
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/**
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* gst_rtsp_thread_reuse:
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* @thread: a #GstRTSPThread
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*
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* Reuse the mainloop of @thread
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*/
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void
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gst_rtsp_thread_reuse (GstRTSPThread * thread)
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{
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GstRTSPThreadImpl *impl = (GstRTSPThreadImpl *) thread;
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g_return_if_fail (GST_IS_RTSP_THREAD (thread));
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GST_DEBUG ("reuse thread %p", thread);
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g_atomic_int_inc (&impl->reused);
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}
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/**
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* gst_rtsp_thread_stop:
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* @thread: a #GstRTSPThread
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*
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* Stop @thread. When no threads are using the mainloop, the thread will be
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* stopped and the final ref to @thread will be released.
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*/
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void
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gst_rtsp_thread_stop (GstRTSPThread * thread)
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{
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GstRTSPThreadImpl *impl = (GstRTSPThreadImpl *) thread;
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g_return_if_fail (GST_IS_RTSP_THREAD (thread));
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GST_DEBUG ("stop thread %p", thread);
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if (g_atomic_int_dec_and_test (&impl->reused)) {
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GST_DEBUG ("stop mainloop of thread %p", thread);
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g_main_loop_quit (thread->loop);
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}
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}
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#define GST_RTSP_THREAD_POOL_GET_PRIVATE(obj) \
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(G_TYPE_INSTANCE_GET_PRIVATE ((obj), GST_TYPE_RTSP_THREAD_POOL, GstRTSPThreadPoolPrivate))
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struct _GstRTSPThreadPoolPrivate
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{
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GMutex lock;
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gint max_threads;
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/* currently used mainloops */
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GQueue threads;
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};
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#define DEFAULT_MAX_THREADS 1
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enum
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{
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PROP_0,
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PROP_MAX_THREADS,
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PROP_LAST
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};
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GST_DEBUG_CATEGORY_STATIC (rtsp_thread_pool_debug);
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#define GST_CAT_DEFAULT rtsp_thread_pool_debug
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static GQuark thread_pool;
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static void gst_rtsp_thread_pool_get_property (GObject * object, guint propid,
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GValue * value, GParamSpec * pspec);
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static void gst_rtsp_thread_pool_set_property (GObject * object, guint propid,
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const GValue * value, GParamSpec * pspec);
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static void gst_rtsp_thread_pool_finalize (GObject * obj);
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static gpointer do_loop (GstRTSPThread * thread,
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GstRTSPThreadPoolClass * klass);
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static GstRTSPThread *default_get_thread (GstRTSPThreadPool * pool,
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GstRTSPThreadType type, GstRTSPClientState * state);
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G_DEFINE_TYPE (GstRTSPThreadPool, gst_rtsp_thread_pool, G_TYPE_OBJECT);
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static void
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gst_rtsp_thread_pool_class_init (GstRTSPThreadPoolClass * klass)
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{
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GObjectClass *gobject_class;
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g_type_class_add_private (klass, sizeof (GstRTSPThreadPoolPrivate));
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gobject_class = G_OBJECT_CLASS (klass);
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gobject_class->get_property = gst_rtsp_thread_pool_get_property;
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gobject_class->set_property = gst_rtsp_thread_pool_set_property;
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gobject_class->finalize = gst_rtsp_thread_pool_finalize;
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/**
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* GstRTSPThreadPool::max-threads:
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*
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* The maximum amount of threads to use for client connections. A value of
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* 0 means to use only the mainloop, -1 means an unlimited amount of
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* threads.
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*/
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g_object_class_install_property (gobject_class, PROP_MAX_THREADS,
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g_param_spec_int ("max-threads", "Max Threads",
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"The maximum amount of threads to use for client connections "
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"(0 = only mainloop, -1 = unlimited)", -1, G_MAXINT,
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DEFAULT_MAX_THREADS, G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS));
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klass->get_thread = default_get_thread;
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klass->pool = g_thread_pool_new ((GFunc) do_loop, klass, -1, FALSE, NULL);
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GST_DEBUG_CATEGORY_INIT (rtsp_thread_pool_debug, "rtspthreadpool", 0,
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"GstRTSPThreadPool");
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thread_pool = g_quark_from_string ("gst.rtsp.thread.pool");
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}
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static void
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gst_rtsp_thread_pool_init (GstRTSPThreadPool * pool)
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{
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GstRTSPThreadPoolPrivate *priv;
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pool->priv = priv = GST_RTSP_THREAD_POOL_GET_PRIVATE (pool);
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g_mutex_init (&priv->lock);
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priv->max_threads = DEFAULT_MAX_THREADS;
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g_queue_init (&priv->threads);
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}
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static void
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gst_rtsp_thread_pool_finalize (GObject * obj)
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{
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GstRTSPThreadPool *pool = GST_RTSP_THREAD_POOL (obj);
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GstRTSPThreadPoolPrivate *priv = pool->priv;
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GST_INFO ("finalize pool %p", pool);
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g_queue_clear (&priv->threads);
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g_mutex_clear (&priv->lock);
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G_OBJECT_CLASS (gst_rtsp_thread_pool_parent_class)->finalize (obj);
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}
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static void
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gst_rtsp_thread_pool_get_property (GObject * object, guint propid,
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GValue * value, GParamSpec * pspec)
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{
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GstRTSPThreadPool *pool = GST_RTSP_THREAD_POOL (object);
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switch (propid) {
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case PROP_MAX_THREADS:
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g_value_set_int (value, gst_rtsp_thread_pool_get_max_threads (pool));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, propid, pspec);
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}
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}
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static void
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gst_rtsp_thread_pool_set_property (GObject * object, guint propid,
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const GValue * value, GParamSpec * pspec)
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{
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GstRTSPThreadPool *pool = GST_RTSP_THREAD_POOL (object);
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switch (propid) {
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case PROP_MAX_THREADS:
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gst_rtsp_thread_pool_set_max_threads (pool, g_value_get_int (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, propid, pspec);
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}
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}
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static gpointer
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do_loop (GstRTSPThread * thread, GstRTSPThreadPoolClass * klass)
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{
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GstRTSPThreadPoolPrivate *priv;
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GstRTSPThreadPool *pool;
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pool = gst_mini_object_get_qdata (GST_MINI_OBJECT (thread), thread_pool);
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priv = pool->priv;
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if (klass->thread_enter)
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klass->thread_enter (pool, thread);
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GST_INFO ("enter mainloop of thread %p", thread);
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g_main_loop_run (thread->loop);
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GST_INFO ("exit mainloop of thread %p", thread);
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if (klass->thread_leave)
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klass->thread_leave (pool, thread);
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g_mutex_lock (&priv->lock);
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g_queue_remove (&priv->threads, thread);
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g_mutex_unlock (&priv->lock);
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gst_rtsp_thread_unref (thread);
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return NULL;
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}
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/**
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* gst_rtsp_thread_pool_new:
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*
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* Create a new #GstRTSPThreadPool instance.
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*
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* Returns: a new #GstRTSPThreadPool
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*/
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GstRTSPThreadPool *
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gst_rtsp_thread_pool_new (void)
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{
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GstRTSPThreadPool *result;
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result = g_object_new (GST_TYPE_RTSP_THREAD_POOL, NULL);
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return result;
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}
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/**
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* gst_rtsp_thread_pool_set_max_threads:
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* @pool: a #GstRTSPThreadPool
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* @max_threads: maximum threads
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*
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* Set the maximum threads used by the pool to handle client requests.
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* A value of 0 will use the pool mainloop, a value of -1 will use an
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* unlimited number of threads.
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*/
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void
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gst_rtsp_thread_pool_set_max_threads (GstRTSPThreadPool * pool,
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gint max_threads)
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{
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GstRTSPThreadPoolPrivate *priv;
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g_return_if_fail (GST_IS_RTSP_THREAD_POOL (pool));
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priv = pool->priv;
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g_mutex_lock (&priv->lock);
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priv->max_threads = max_threads;
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g_mutex_unlock (&priv->lock);
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}
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/**
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* gst_rtsp_thread_pool_get_max_threads:
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* @pool: a #GstRTSPThreadPool
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*
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* Get the maximum number of threads used for client connections.
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* See gst_rtsp_thread_pool_set_max_threads().
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*
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* Returns: the maximum number of threads.
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*/
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gint
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gst_rtsp_thread_pool_get_max_threads (GstRTSPThreadPool * pool)
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{
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GstRTSPThreadPoolPrivate *priv;
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gint res;
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g_return_val_if_fail (GST_IS_RTSP_THREAD_POOL (pool), -1);
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priv = pool->priv;
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g_mutex_lock (&priv->lock);
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res = priv->max_threads;
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g_mutex_unlock (&priv->lock);
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return res;
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}
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static GstRTSPThread *
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make_thread (GstRTSPThreadPool * pool, GstRTSPClientState * state)
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{
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GstRTSPThreadPoolClass *klass;
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GstRTSPThread *thread;
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klass = GST_RTSP_THREAD_POOL_GET_CLASS (pool);
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thread = gst_rtsp_thread_new ();
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gst_mini_object_set_qdata (GST_MINI_OBJECT (thread), thread_pool,
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g_object_ref (pool), g_object_unref);
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GST_DEBUG_OBJECT (pool, "new thread %p", thread);
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if (klass->configure_thread)
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klass->configure_thread (pool, thread, state);
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return thread;
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}
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static GstRTSPThread *
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default_get_thread (GstRTSPThreadPool * pool,
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GstRTSPThreadType type, GstRTSPClientState * state)
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{
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GstRTSPThreadPoolPrivate *priv = pool->priv;
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GstRTSPThreadPoolClass *klass;
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GstRTSPThread *thread;
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GError *error = NULL;
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klass = GST_RTSP_THREAD_POOL_GET_CLASS (pool);
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switch (type) {
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case GST_RTSP_THREAD_TYPE_CLIENT:
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if (priv->max_threads == 0) {
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/* no threads allowed */
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GST_DEBUG_OBJECT (pool, "no client threads allowed");
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thread = NULL;
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} else {
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if (priv->max_threads > 0 &&
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g_queue_get_length (&priv->threads) >= priv->max_threads) {
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/* max threads reached, recycle from queue */
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GST_DEBUG_OBJECT (pool, "recycle client thread");
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thread = g_queue_pop_head (&priv->threads);
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gst_rtsp_thread_ref (thread);
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} else {
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/* make more threads */
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GST_DEBUG_OBJECT (pool, "make new client thread");
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thread = make_thread (pool, state);
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if (!g_thread_pool_push (klass->pool, thread, &error))
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goto thread_error;
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}
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g_queue_push_tail (&priv->threads, thread);
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}
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break;
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case GST_RTSP_THREAD_TYPE_MEDIA:
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GST_DEBUG_OBJECT (pool, "make new media thread");
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thread = make_thread (pool, state);
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if (!g_thread_pool_push (klass->pool, thread, &error))
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goto thread_error;
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break;
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default:
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thread = NULL;
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break;
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}
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return thread;
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/* ERRORS */
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thread_error:
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{
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GST_ERROR_OBJECT (pool, "failed to push thread %s", error->message);
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gst_rtsp_thread_unref (thread);
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g_clear_error (&error);
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return NULL;
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}
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}
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/**
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* gst_rtsp_thread_pool_get_thread:
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* @pool: a #GstRTSPThreadPool
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* @type: the #GstRTSPThreadType
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* @state: a #GstRTSPClientState
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*
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* Get a new #GstRTSPThread for @type and @state.
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*
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* Returns: a new #GstRTSPThread, gst_rtsp_thread_stop() after usage
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*/
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GstRTSPThread *
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gst_rtsp_thread_pool_get_thread (GstRTSPThreadPool * pool,
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GstRTSPThreadType type, GstRTSPClientState * state)
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{
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GstRTSPThreadPoolClass *klass;
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GstRTSPThread *result = NULL;
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g_return_val_if_fail (GST_IS_RTSP_THREAD_POOL (pool), NULL);
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g_return_val_if_fail (state != NULL, NULL);
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klass = GST_RTSP_THREAD_POOL_GET_CLASS (pool);
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||||
|
||||
if (klass->get_thread)
|
||||
result = klass->get_thread (pool, type, state);
|
||||
|
||||
return result;
|
||||
}
|
||||
165
gst/rtsp-server/rtsp-thread-pool.h
Normal file
165
gst/rtsp-server/rtsp-thread-pool.h
Normal file
|
|
@ -0,0 +1,165 @@
|
|||
/* GStreamer
|
||||
* Copyright (C) 2010 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 <gst/gst.h>
|
||||
|
||||
#ifndef __GST_RTSP_THREAD_POOL_H__
|
||||
#define __GST_RTSP_THREAD_POOL_H__
|
||||
|
||||
typedef struct _GstRTSPThread GstRTSPThread;
|
||||
typedef struct _GstRTSPThreadPool GstRTSPThreadPool;
|
||||
typedef struct _GstRTSPThreadPoolClass GstRTSPThreadPoolClass;
|
||||
typedef struct _GstRTSPThreadPoolPrivate GstRTSPThreadPoolPrivate;
|
||||
|
||||
#include "rtsp-client.h"
|
||||
|
||||
G_BEGIN_DECLS
|
||||
|
||||
#define GST_TYPE_RTSP_THREAD_POOL (gst_rtsp_thread_pool_get_type ())
|
||||
#define GST_IS_RTSP_THREAD_POOL(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_RTSP_THREAD_POOL))
|
||||
#define GST_IS_RTSP_THREAD_POOL_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_RTSP_THREAD_POOL))
|
||||
#define GST_RTSP_THREAD_POOL_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_RTSP_THREAD_POOL, GstRTSPThreadPoolClass))
|
||||
#define GST_RTSP_THREAD_POOL(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_RTSP_THREAD_POOL, GstRTSPThreadPool))
|
||||
#define GST_RTSP_THREAD_POOL_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_RTSP_THREAD_POOL, GstRTSPThreadPoolClass))
|
||||
#define GST_RTSP_THREAD_POOL_CAST(obj) ((GstRTSPThreadPool*)(obj))
|
||||
#define GST_RTSP_THREAD_POOL_CLASS_CAST(klass) ((GstRTSPThreadPoolClass*)(klass))
|
||||
|
||||
GType gst_rtsp_thread_get_type (void);
|
||||
|
||||
#define GST_TYPE_RTSP_THREAD (gst_rtsp_thread_get_type ())
|
||||
#define GST_IS_RTSP_THREAD(obj) (GST_IS_MINI_OBJECT_TYPE (obj, GST_TYPE_RTSP_THREAD))
|
||||
#define GST_RTSP_THREAD_CAST(obj) ((GstRTSPThread*)(obj))
|
||||
#define GST_RTSP_THREAD(obj) (GST_RTSP_THREAD_CAST(obj))
|
||||
|
||||
/**
|
||||
* GstRTSPThread:
|
||||
*
|
||||
* Structure holding info about a mainloop running in a thread
|
||||
*/
|
||||
struct _GstRTSPThread {
|
||||
GstMiniObject mini_object;
|
||||
|
||||
GMainContext *context;
|
||||
GMainLoop *loop;
|
||||
};
|
||||
|
||||
GstRTSPThread * gst_rtsp_thread_new (void);
|
||||
|
||||
void gst_rtsp_thread_reuse (GstRTSPThread * thread);
|
||||
void gst_rtsp_thread_stop (GstRTSPThread * thread);
|
||||
|
||||
/**
|
||||
* gst_rtsp_thread_ref:
|
||||
* @thread: The thread to refcount
|
||||
*
|
||||
* Increase the refcount of this thread.
|
||||
*
|
||||
* Returns: (transfer full): @thread (for convenience when doing assignments)
|
||||
*/
|
||||
#ifdef _FOOL_GTK_DOC_
|
||||
G_INLINE_FUNC GstRTSPThread * gst_rtsp_thread_ref (GstRTSPThread * thread);
|
||||
#endif
|
||||
|
||||
static inline GstRTSPThread *
|
||||
gst_rtsp_thread_ref (GstRTSPThread * thread)
|
||||
{
|
||||
return (GstRTSPThread *) gst_mini_object_ref (GST_MINI_OBJECT_CAST (thread));
|
||||
}
|
||||
|
||||
/**
|
||||
* gst_rtsp_thread_unref:
|
||||
* @thread: (transfer full): the thread to refcount
|
||||
*
|
||||
* Decrease the refcount of an thread, freeing it if the refcount reaches 0.
|
||||
*/
|
||||
#ifdef _FOOL_GTK_DOC_
|
||||
G_INLINE_FUNC void gst_rtsp_thread_unref (GstRTSPPermissions * thread);
|
||||
#endif
|
||||
|
||||
|
||||
static inline void
|
||||
gst_rtsp_thread_unref (GstRTSPThread * thread)
|
||||
{
|
||||
gst_mini_object_unref (GST_MINI_OBJECT_CAST (thread));
|
||||
}
|
||||
|
||||
/**
|
||||
* GstRTSPThreadType:
|
||||
* @GST_RTSP_THREAD_TYPE_CLIENT: a thread to handle the client communication
|
||||
* @GST_RTSP_THREAD_TYPE_MEDIA: a thread to handle media
|
||||
*
|
||||
* Different thread types
|
||||
*/
|
||||
typedef enum
|
||||
{
|
||||
GST_RTSP_THREAD_TYPE_CLIENT,
|
||||
GST_RTSP_THREAD_TYPE_MEDIA
|
||||
} GstRTSPThreadType;
|
||||
|
||||
/**
|
||||
* GstRTSPThreadPool:
|
||||
*
|
||||
* The thread pool structure.
|
||||
*/
|
||||
struct _GstRTSPThreadPool {
|
||||
GObject parent;
|
||||
|
||||
GstRTSPThreadPoolPrivate *priv;
|
||||
};
|
||||
|
||||
/**
|
||||
* GstRTSPThreadPoolClass:
|
||||
* @get_thread: get or reuse a thread object
|
||||
* @configure_thread: configure a thread object
|
||||
* @thread_enter: called from the thread when it is entered
|
||||
* @thread_leave: called from the thread when it is left
|
||||
*
|
||||
* Class for managing threads.
|
||||
*/
|
||||
struct _GstRTSPThreadPoolClass {
|
||||
GObjectClass parent_class;
|
||||
|
||||
GThreadPool *pool;
|
||||
|
||||
GstRTSPThread * (*get_thread) (GstRTSPThreadPool *pool,
|
||||
GstRTSPThreadType type,
|
||||
GstRTSPClientState *state);
|
||||
void (*configure_thread) (GstRTSPThreadPool *pool,
|
||||
GstRTSPThread * thread,
|
||||
GstRTSPClientState *state);
|
||||
|
||||
void (*thread_enter) (GstRTSPThreadPool *pool,
|
||||
GstRTSPThread *thread);
|
||||
void (*thread_leave) (GstRTSPThreadPool *pool,
|
||||
GstRTSPThread *thread);
|
||||
};
|
||||
|
||||
GType gst_rtsp_thread_pool_get_type (void);
|
||||
|
||||
GstRTSPThreadPool * gst_rtsp_thread_pool_new (void);
|
||||
|
||||
void gst_rtsp_thread_pool_set_max_threads (GstRTSPThreadPool * pool, gint max_threads);
|
||||
gint gst_rtsp_thread_pool_get_max_threads (GstRTSPThreadPool * pool);
|
||||
|
||||
GstRTSPThread * gst_rtsp_thread_pool_get_thread (GstRTSPThreadPool *pool,
|
||||
GstRTSPThreadType type,
|
||||
GstRTSPClientState *state);
|
||||
G_END_DECLS
|
||||
|
||||
#endif /* __GST_RTSP_THREAD_POOL_H__ */
|
||||
Loading…
Reference in a new issue