forked from bartvdbraak/blender
111 lines
2.4 KiB
C++
111 lines
2.4 KiB
C++
/*
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* Copyright 2011, Blender Foundation.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program 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
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef __UTIL_THREAD_H__
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#define __UTIL_THREAD_H__
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#include <boost/thread.hpp>
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#include <pthread.h>
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#include <queue>
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#include "util_function.h"
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CCL_NAMESPACE_BEGIN
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/* use boost for mutexes */
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typedef boost::mutex thread_mutex;
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typedef boost::mutex::scoped_lock thread_scoped_lock;
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typedef boost::condition_variable thread_condition_variable;
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/* own pthread based implementation, to avoid boost version conflicts with
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dynamically loaded blender plugins */
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class thread {
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public:
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thread(boost::function<void(void)> run_cb_)
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{
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joined = false;
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run_cb = run_cb_;
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pthread_create(&pthread_id, NULL, run, (void*)this);
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}
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~thread()
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{
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if(!joined)
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join();
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}
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static void *run(void *arg)
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{
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((thread*)arg)->run_cb();
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return NULL;
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}
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bool join()
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{
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return pthread_join(pthread_id, NULL) == 0;
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}
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protected:
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boost::function<void(void)> run_cb;
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pthread_t pthread_id;
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bool joined;
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};
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/* Thread Local Storage
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*
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* Boost implementation is a bit slow, and Mac OS X __thread is not supported
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* but the pthreads implementation is optimized, so we use these macros. */
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#ifdef __APPLE__
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#define tls_ptr(type, name) \
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pthread_key_t name
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#define tls_set(name, value) \
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pthread_setspecific(name, value)
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#define tls_get(type, name) \
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((type*)pthread_getspecific(name))
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#define tls_create(type, name) \
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pthread_key_create(&name, NULL)
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#define tls_delete(type, name) \
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pthread_key_delete(name);
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#else
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#ifdef __WIN32
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#define __thread __declspec(thread)
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#endif
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#define tls_ptr(type, name) \
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__thread type *name
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#define tls_set(name, value) \
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name = value
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#define tls_get(type, name) \
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name
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#define tls_create(type, name)
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#define tls_delete(type, name)
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#endif
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CCL_NAMESPACE_END
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#endif /* __UTIL_THREAD_H__ */
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