Brecht Van Lommel
9cfc7967dd
* Replace license text in headers with SPDX identifiers. * Remove specific license info from outdated readme.txt, instead leave details to the source files. * Add list of SPDX license identifiers used, and corresponding license texts. * Update copyright dates while we're at it. Ref D14069, T95597
75 lines
1.4 KiB
C++
75 lines
1.4 KiB
C++
/* SPDX-License-Identifier: Apache-2.0
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* Copyright 2011-2022 Blender Foundation */
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#ifndef __UTIL_THREAD_H__
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#define __UTIL_THREAD_H__
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#include <condition_variable>
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#include <functional>
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#include <mutex>
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#include <queue>
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#include <thread>
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#ifdef _WIN32
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# include "util/windows.h"
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#else
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# include <pthread.h>
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#endif
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/* NOTE: Use tbb/spin_mutex.h instead of util_tbb.h because some of the TBB
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* functionality requires RTTI, which is disabled for OSL kernel. */
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#include <tbb/spin_mutex.h>
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#include "util/function.h"
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CCL_NAMESPACE_BEGIN
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typedef std::mutex thread_mutex;
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typedef std::unique_lock<std::mutex> thread_scoped_lock;
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typedef std::condition_variable thread_condition_variable;
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/* Own thread implementation similar to std::thread, so we can set a
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* custom stack size on macOS. */
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class thread {
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public:
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thread(function<void()> run_cb);
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~thread();
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static void *run(void *arg);
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bool join();
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protected:
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function<void()> run_cb_;
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#ifdef __APPLE__
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pthread_t pthread_id;
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#else
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std::thread std_thread;
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#endif
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bool joined_;
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};
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using thread_spin_lock = tbb::spin_mutex;
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class thread_scoped_spin_lock {
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public:
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explicit thread_scoped_spin_lock(thread_spin_lock &lock) : lock_(lock)
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{
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lock_.lock();
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}
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~thread_scoped_spin_lock()
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{
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lock_.unlock();
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}
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/* TODO(sergey): Implement manual control over lock/unlock. */
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protected:
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thread_spin_lock &lock_;
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};
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CCL_NAMESPACE_END
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#endif /* __UTIL_THREAD_H__ */
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