530ee6e7fa
In some cases it wasn't clear if a comment before a class was meant to be it's doc-string. Remove blank lines between the class & it's doc-string.
77 lines
1.4 KiB
C++
77 lines
1.4 KiB
C++
/* SPDX-FileCopyrightText: 2011-2022 Blender Foundation
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0 */
|
|
|
|
#ifndef __UTIL_THREAD_H__
|
|
#define __UTIL_THREAD_H__
|
|
|
|
#include <condition_variable>
|
|
#include <functional>
|
|
#include <mutex>
|
|
#include <queue>
|
|
#include <thread>
|
|
|
|
#ifdef _WIN32
|
|
# include "util/windows.h"
|
|
#else
|
|
# include <pthread.h>
|
|
#endif
|
|
|
|
/* NOTE: Use tbb/spin_mutex.h instead of util_tbb.h because some of the TBB
|
|
* functionality requires RTTI, which is disabled for OSL kernel. */
|
|
#include <tbb/spin_mutex.h>
|
|
|
|
#include "util/function.h"
|
|
|
|
CCL_NAMESPACE_BEGIN
|
|
|
|
typedef std::mutex thread_mutex;
|
|
typedef std::unique_lock<std::mutex> thread_scoped_lock;
|
|
typedef std::condition_variable thread_condition_variable;
|
|
|
|
/**
|
|
* Own thread implementation similar to std::thread, so we can set a
|
|
* custom stack size on macOS.
|
|
*/
|
|
class thread {
|
|
public:
|
|
thread(function<void()> run_cb);
|
|
~thread();
|
|
|
|
static void *run(void *arg);
|
|
bool join();
|
|
|
|
protected:
|
|
function<void()> run_cb_;
|
|
#ifdef __APPLE__
|
|
pthread_t pthread_id;
|
|
#else
|
|
std::thread std_thread;
|
|
#endif
|
|
bool joined_;
|
|
};
|
|
|
|
using thread_spin_lock = tbb::spin_mutex;
|
|
|
|
class thread_scoped_spin_lock {
|
|
public:
|
|
explicit thread_scoped_spin_lock(thread_spin_lock &lock) : lock_(lock)
|
|
{
|
|
lock_.lock();
|
|
}
|
|
|
|
~thread_scoped_spin_lock()
|
|
{
|
|
lock_.unlock();
|
|
}
|
|
|
|
/* TODO(sergey): Implement manual control over lock/unlock. */
|
|
|
|
protected:
|
|
thread_spin_lock &lock_;
|
|
};
|
|
|
|
CCL_NAMESPACE_END
|
|
|
|
#endif /* __UTIL_THREAD_H__ */
|