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#include "UnityPrefix.h"
#if SUPPORT_THREADS
#ifndef THREAD_API_PTHREAD
#define THREAD_API_PTHREAD (UNITY_OSX || UNITY_PS3 || UNITY_IPHONE || UNITY_ANDROID || UNITY_PEPPER || UNITY_LINUX || UNITY_BB10 || UNITY_TIZEN)
#endif
#endif // SUPPORT_THREADS
#if THREAD_API_PTHREAD
#include "PlatformThread.h"
#include "Runtime/Threads/Thread.h"
#include "Runtime/Threads/ThreadHelper.h"
#include "Runtime/Utilities/Word.h"
//#include "Runtime/Utilities/Utility.h"
// module@TODO : Move this to PlatformThread.h
#if UNITY_PS3
# include <sys/timer.h>
# include "pthread_ext/pthread_ext.h"
# define pthread_create pthread_ext_create
#endif
#if UNITY_PEPPER && defined(__native_client__)
#include <sys/time.h>
#include <sys/signal.h>
#include <sys/nacl_syscalls.h>
#endif
#if UNITY_ANDROID
#include <jni.h>
JavaVM* GetJavaVm();
extern "C" void* GC_lookup_thread(pthread_t id);
extern "C" void GC_delete_thread(pthread_t id);
#endif
PlatformThread::PlatformThread()
: m_Thread((ThreadID)NULL)
{
}
PlatformThread::~PlatformThread()
{
AssertMsg(m_Thread == (ThreadID)NULL, "***Thread was not cleaned up!***");
}
void PlatformThread::Create(const Thread* thread, const UInt32 stackSize, const int processor)
{
m_DefaultPriority = 0;
m_Processor = processor;
if(stackSize)
{
pthread_attr_t attr;
memset(&attr, 0, sizeof(attr));
// module@TODO : Implement pthread_attr_init/pthread_attr_setstacksize in PlatformThread.h
#if UNITY_PS3
attr.stacksize = stackSize;
attr.name = "_UNITY_";
#else
pthread_attr_init(&attr);
pthread_attr_setstacksize(&attr, stackSize);
#endif
pthread_create(&m_Thread, &attr, Thread::RunThreadWrapper, (void*)thread);
}
else {
pthread_create(&m_Thread, NULL, Thread::RunThreadWrapper, (void*)thread);
}
#if UNITY_OSX || UNITY_IPHONE || UNITY_PS3
// Y U no want on Linux?
struct sched_param param;
int outputPolicy;
if (pthread_getschedparam(m_Thread, &outputPolicy, ¶m) == 0)
m_DefaultPriority = param.sched_priority;
AssertIf(m_DefaultPriority == 0); // Y U no like 0 priority?
#endif
if (thread->m_Priority != kNormalPriority)
UpdatePriority(thread);
}
void PlatformThread::Enter(const Thread* thread)
{
ThreadHelper::SetThreadProcessor(thread, m_Processor);
}
void PlatformThread::Exit(const Thread* thread, void* result)
{
#if UNITY_ANDROID
if (GC_lookup_thread(pthread_self()))
GC_delete_thread(pthread_self());
GetJavaVm()->DetachCurrentThread();
pthread_exit(result);
#endif
}
void PlatformThread::Join(const Thread* thread)
{
if (Thread::EqualsCurrentThreadID(m_Thread))
{
ErrorStringMsg("***Thread '%s' tried to join itself!***", thread->m_Name);
}
if (m_Thread)
{
int error = pthread_join(m_Thread, NULL);
if (error)
ErrorString(Format("Error joining threads: %d", error));
m_Thread = 0;
}
}
void PlatformThread::UpdatePriority(const Thread* thread) const
{
#if UNITY_PEPPER || UNITY_BB10
// No thread priority in NaCl yet.
// For BB10 the user Unity is run as lacks permission to set priority.
#else // Default POSIX impl below
ThreadPriority p = thread->m_Priority;
#if UNITY_OSX || UNITY_IPHONE || UNITY_PS3
AssertIf(m_DefaultPriority == 0);
#endif
struct sched_param param;
int policy;
ErrorIf(pthread_getschedparam(m_Thread, &policy, ¶m));
#if UNITY_PS3
int min = 3071;
int max = 0;
#else
int min = sched_get_priority_min(policy);
int max = sched_get_priority_max(policy);
#endif
int iPriority;
switch (p)
{
case kLowPriority:
iPriority = min;
break;
case kBelowNormalPriority:
iPriority = min + (m_DefaultPriority-min)/2;
break;
case kNormalPriority:
iPriority = m_DefaultPriority;
break;
case kHighPriority:
iPriority = max;
break;
default:
iPriority = min;
AssertString("Undefined thread priority");
break;
}
if (param.sched_priority != iPriority)
{
param.sched_priority = iPriority;
ErrorIf(pthread_setschedparam(m_Thread, policy, ¶m));
}
#endif
}
PlatformThread::ThreadID PlatformThread::GetCurrentThreadID()
{
return (ThreadID)pthread_self();
}
#endif // THREAD_API_PTHREAD
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