Differential D8182 Diff 26463 intern/cycles/util/util_thread.h

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intern/cycles/util/util_thread.h

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#include <thread>		#include <thread>

#ifdef _WIN32		#ifdef _WIN32
# include "util_windows.h"		# include "util_windows.h"
#else		#else
# include <pthread.h>		# include <pthread.h>
#endif		#endif

#ifdef __APPLE__		/* NOTE: Use tbb/spin_mutex.h instead of util_tbb.h because some of the TBB
# include <libkern/OSAtomic.h>		* functionality requires RTTI, which is disabled for OSL kernel. */
#endif		#include <tbb/spin_mutex.h>

#include "util/util_function.h"		#include "util/util_function.h"

CCL_NAMESPACE_BEGIN		CCL_NAMESPACE_BEGIN

typedef std::mutex thread_mutex;		typedef std::mutex thread_mutex;
typedef std::unique_lock<std::mutex> thread_scoped_lock;		typedef std::unique_lock<std::mutex> thread_scoped_lock;
typedef std::condition_variable thread_condition_variable;		typedef std::condition_variable thread_condition_variable;
Show All 17 Lines	#ifdef __APPLE__
pthread_t pthread_id;		pthread_t pthread_id;
#else		#else
std::thread std_thread;		std::thread std_thread;
#endif		#endif
bool joined_;		bool joined_;
int node_;		int node_;
};		};

/* Own wrapper around pthread's spin lock to make it's use easier. */		using thread_spin_lock = tbb::spin_mutex;

class thread_spin_lock {
public:
#ifdef __APPLE__
inline thread_spin_lock()
{
spin_ = OS_SPINLOCK_INIT;
}

inline void lock()
{
OSSpinLockLock(&spin_);
}

inline void unlock()
{
OSSpinLockUnlock(&spin_);
}
#elif defined(_WIN32)
inline thread_spin_lock()
{
const DWORD SPIN_COUNT = 50000;
InitializeCriticalSectionAndSpinCount(&cs_, SPIN_COUNT);
}

inline ~thread_spin_lock()
{
DeleteCriticalSection(&cs_);
}

inline void lock()
{
EnterCriticalSection(&cs_);
}

inline void unlock()
{
LeaveCriticalSection(&cs_);
}
#else
inline thread_spin_lock()
{
pthread_spin_init(&spin_, 0);
}

inline ~thread_spin_lock()
{
pthread_spin_destroy(&spin_);
}

inline void lock()
{
pthread_spin_lock(&spin_);
}

inline void unlock()
{
pthread_spin_unlock(&spin_);
}
#endif
protected:
#ifdef __APPLE__
OSSpinLock spin_;
#elif defined(_WIN32)
CRITICAL_SECTION cs_;
#else
pthread_spinlock_t spin_;
#endif
};

class thread_scoped_spin_lock {		class thread_scoped_spin_lock {
public:		public:
explicit thread_scoped_spin_lock(thread_spin_lock &lock) : lock_(lock)		explicit thread_scoped_spin_lock(thread_spin_lock &lock) : lock_(lock)
{		{
lock_.lock();		lock_.lock();
}		}

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