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/*
* Copyright 2010-2022 Branimir Karadzic. All rights reserved.
* License: https://github.com/bkaradzic/bx/blob/master/LICENSE
*/
#include <bx/os.h>
#include <bx/thread.h>
#if BX_CONFIG_SUPPORTS_THREADING
#if BX_PLATFORM_WINDOWS && !BX_CRT_NONE
# include <bx/string.h>
#endif
#if BX_CRT_NONE
# include "crt0.h"
#elif BX_PLATFORM_ANDROID \
|| BX_PLATFORM_BSD \
|| BX_PLATFORM_HAIKU \
|| BX_PLATFORM_LINUX \
|| BX_PLATFORM_IOS \
|| BX_PLATFORM_OSX \
|| BX_PLATFORM_PS4 \
|| BX_PLATFORM_RPI \
|| BX_PLATFORM_NX
# include <pthread.h>
# if BX_PLATFORM_BSD
# include <pthread_np.h>
# endif // BX_PLATFORM_BSD
# if BX_PLATFORM_LINUX && (BX_CRT_GLIBC < 21200)
# include <sys/prctl.h>
# endif // BX_PLATFORM_
#elif BX_PLATFORM_WINDOWS \
|| BX_PLATFORM_WINRT \
|| BX_PLATFORM_XBOXONE \
|| BX_PLATFORM_WINRT
# ifndef WIN32_LEAN_AND_MEAN
# define WIN32_LEAN_AND_MEAN
# endif // WIN32_LEAN_AND_MEAN
# include <windows.h>
# include <limits.h>
# include <errno.h>
#endif // BX_PLATFORM_
namespace bx
{
static AllocatorI* getAllocator()
{
static DefaultAllocator s_allocator;
return &s_allocator;
}
struct ThreadInternal
{
#if BX_CRT_NONE
static int32_t threadFunc(void* _arg);
int32_t m_handle;
#elif BX_PLATFORM_WINDOWS \
|| BX_PLATFORM_WINRT \
|| BX_PLATFORM_XBOXONE
static DWORD WINAPI threadFunc(LPVOID _arg);
HANDLE m_handle;
DWORD m_threadId;
#elif BX_PLATFORM_POSIX
static void* threadFunc(void* _arg);
pthread_t m_handle;
#endif // BX_PLATFORM_
};
#if BX_CRT_NONE
int32_t ThreadInternal::threadFunc(void* _arg)
{
Thread* thread = (Thread*)_arg;
int32_t result = thread->entry();
return result;
}
#elif BX_PLATFORM_WINDOWS \
|| BX_PLATFORM_XBOXONE \
|| BX_PLATFORM_WINRT
DWORD WINAPI ThreadInternal::threadFunc(LPVOID _arg)
{
Thread* thread = (Thread*)_arg;
int32_t result = thread->entry();
return result;
}
#else
void* ThreadInternal::threadFunc(void* _arg)
{
Thread* thread = (Thread*)_arg;
union
{
void* ptr;
int32_t i;
} cast;
cast.i = thread->entry();
return cast.ptr;
}
#endif // BX_PLATFORM_
Thread::Thread()
: m_fn(NULL)
, m_userData(NULL)
, m_queue(getAllocator() )
, m_stackSize(0)
, m_exitCode(kExitSuccess)
, m_running(false)
{
BX_STATIC_ASSERT(sizeof(ThreadInternal) <= sizeof(m_internal) );
ThreadInternal* ti = (ThreadInternal*)m_internal;
#if BX_CRT_NONE
ti->m_handle = INT32_MIN;
#elif BX_PLATFORM_WINDOWS \
|| BX_PLATFORM_WINRT \
|| BX_PLATFORM_XBOXONE
ti->m_handle = INVALID_HANDLE_VALUE;
ti->m_threadId = UINT32_MAX;
#elif BX_PLATFORM_POSIX
ti->m_handle = 0;
#endif // BX_PLATFORM_
}
Thread::~Thread()
{
if (m_running)
{
shutdown();
}
}
bool Thread::init(ThreadFn _fn, void* _userData, uint32_t _stackSize, const char* _name)
{
BX_ASSERT(!m_running, "Already running!");
m_fn = _fn;
m_userData = _userData;
m_stackSize = _stackSize;
ThreadInternal* ti = (ThreadInternal*)m_internal;
#if BX_CRT_NONE
ti->m_handle = crt0::threadCreate(&ti->threadFunc, _userData, m_stackSize, _name);
if (NULL == ti->m_handle)
{
return false;
}
#elif BX_PLATFORM_WINDOWS \
|| BX_PLATFORM_XBOXONE \
|| BX_PLATFORM_WINRT
ti->m_handle = ::CreateThread(NULL
, m_stackSize
, (LPTHREAD_START_ROUTINE)ti->threadFunc
, this
, 0
, NULL
);
if (NULL == ti->m_handle)
{
return false;
}
#elif BX_PLATFORM_POSIX
int result;
BX_UNUSED(result);
pthread_attr_t attr;
result = pthread_attr_init(&attr);
BX_WARN(0 == result, "pthread_attr_init failed! %d", result);
if (0 != result)
{
return false;
}
if (0 != m_stackSize)
{
result = pthread_attr_setstacksize(&attr, m_stackSize);
BX_WARN(0 == result, "pthread_attr_setstacksize failed! %d", result);
if (0 != result)
{
return false;
}
}
result = pthread_create(&ti->m_handle, &attr, &ti->threadFunc, this);
BX_WARN(0 == result, "pthread_attr_setschedparam failed! %d", result);
if (0 != result)
{
return false;
}
#else
# error "Not implemented!"
#endif // BX_PLATFORM_
m_running = true;
m_sem.wait();
if (NULL != _name)
{
setThreadName(_name);
}
return true;
}
void Thread::shutdown()
{
BX_ASSERT(m_running, "Not running!");
ThreadInternal* ti = (ThreadInternal*)m_internal;
#if BX_CRT_NONE
crt0::threadJoin(ti->m_handle, NULL);
#elif BX_PLATFORM_WINDOWS
WaitForSingleObject(ti->m_handle, INFINITE);
GetExitCodeThread(ti->m_handle, (DWORD*)&m_exitCode);
CloseHandle(ti->m_handle);
ti->m_handle = INVALID_HANDLE_VALUE;
#elif BX_PLATFORM_WINRT || BX_PLATFORM_XBOXONE
WaitForSingleObjectEx(ti->m_handle, INFINITE, FALSE);
CloseHandle(ti->m_handle);
ti->m_handle = INVALID_HANDLE_VALUE;
#elif BX_PLATFORM_POSIX
union
{
void* ptr;
int32_t i;
} cast;
pthread_join(ti->m_handle, &cast.ptr);
m_exitCode = cast.i;
ti->m_handle = 0;
#endif // BX_PLATFORM_
m_running = false;
}
bool Thread::isRunning() const
{
return m_running;
}
int32_t Thread::getExitCode() const
{
return m_exitCode;
}
void Thread::setThreadName(const char* _name)
{
ThreadInternal* ti = (ThreadInternal*)m_internal;
BX_UNUSED(ti);
#if BX_CRT_NONE
BX_UNUSED(_name);
#elif BX_PLATFORM_OSX \
|| BX_PLATFORM_IOS
pthread_setname_np(_name);
#elif (BX_CRT_GLIBC >= 21200) && ! BX_PLATFORM_HURD
pthread_setname_np(ti->m_handle, _name);
#elif BX_PLATFORM_LINUX
prctl(PR_SET_NAME,_name, 0, 0, 0);
#elif BX_PLATFORM_BSD
# if defined(__NetBSD__)
pthread_setname_np(ti->m_handle, "%s", (void*)_name);
# else
pthread_set_name_np(ti->m_handle, _name);
# endif // defined(__NetBSD__)
#elif BX_PLATFORM_WINDOWS
// Try to use the new thread naming API from Win10 Creators update onwards if we have it
typedef HRESULT (WINAPI *SetThreadDescriptionProc)(HANDLE, PCWSTR);
SetThreadDescriptionProc SetThreadDescription = dlsym<SetThreadDescriptionProc>((void*)GetModuleHandleA("Kernel32.dll"), "SetThreadDescription");
if (NULL != SetThreadDescription)
{
uint32_t length = (uint32_t)strLen(_name)+1;
uint32_t size = length*sizeof(wchar_t);
wchar_t* name = (wchar_t*)alloca(size);
mbstowcs(name, _name, size-2);
SetThreadDescription(ti->m_handle, name);
}
# if BX_COMPILER_MSVC
# pragma pack(push, 8)
struct ThreadName
{
DWORD type;
LPCSTR name;
DWORD id;
DWORD flags;
};
# pragma pack(pop)
ThreadName tn;
tn.type = 0x1000;
tn.name = _name;
tn.id = ti->m_threadId;
tn.flags = 0;
__try
{
RaiseException(0x406d1388
, 0
, sizeof(tn)/4
, reinterpret_cast<ULONG_PTR*>(&tn)
);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
}
# endif // BX_COMPILER_MSVC
#else
BX_UNUSED(_name);
#endif // BX_PLATFORM_
}
void Thread::push(void* _ptr)
{
m_queue.push(_ptr);
}
void* Thread::pop()
{
void* ptr = m_queue.pop();
return ptr;
}
int32_t Thread::entry()
{
#if BX_PLATFORM_WINDOWS
ThreadInternal* ti = (ThreadInternal*)m_internal;
ti->m_threadId = ::GetCurrentThreadId();
#endif // BX_PLATFORM_WINDOWS
m_sem.post();
int32_t result = m_fn(this, m_userData);
return result;
}
struct TlsDataInternal
{
#if BX_CRT_NONE
#elif BX_PLATFORM_WINDOWS
uint32_t m_id;
#elif !(BX_PLATFORM_XBOXONE || BX_PLATFORM_WINRT)
pthread_key_t m_id;
#endif // BX_PLATFORM_*
};
#if BX_CRT_NONE
TlsData::TlsData()
{
BX_STATIC_ASSERT(sizeof(TlsDataInternal) <= sizeof(m_internal) );
TlsDataInternal* ti = (TlsDataInternal*)m_internal;
BX_UNUSED(ti);
}
TlsData::~TlsData()
{
TlsDataInternal* ti = (TlsDataInternal*)m_internal;
BX_UNUSED(ti);
}
void* TlsData::get() const
{
return NULL;
}
void TlsData::set(void* _ptr)
{
BX_UNUSED(_ptr);
TlsDataInternal* ti = (TlsDataInternal*)m_internal;
BX_UNUSED(ti);
}
#elif BX_PLATFORM_WINDOWS
TlsData::TlsData()
{
BX_STATIC_ASSERT(sizeof(TlsDataInternal) <= sizeof(m_internal) );
TlsDataInternal* ti = (TlsDataInternal*)m_internal;
ti->m_id = TlsAlloc();
BX_ASSERT(TLS_OUT_OF_INDEXES != ti->m_id, "Failed to allocated TLS index (err: 0x%08x).", GetLastError() );
}
TlsData::~TlsData()
{
TlsDataInternal* ti = (TlsDataInternal*)m_internal;
BOOL result = TlsFree(ti->m_id);
BX_ASSERT(0 != result, "Failed to free TLS index (err: 0x%08x).", GetLastError() ); BX_UNUSED(result);
}
void* TlsData::get() const
{
TlsDataInternal* ti = (TlsDataInternal*)m_internal;
return TlsGetValue(ti->m_id);
}
void TlsData::set(void* _ptr)
{
TlsDataInternal* ti = (TlsDataInternal*)m_internal;
TlsSetValue(ti->m_id, _ptr);
}
#elif !(BX_PLATFORM_XBOXONE || BX_PLATFORM_WINRT)
TlsData::TlsData()
{
BX_STATIC_ASSERT(sizeof(TlsDataInternal) <= sizeof(m_internal) );
TlsDataInternal* ti = (TlsDataInternal*)m_internal;
int result = pthread_key_create(&ti->m_id, NULL);
BX_ASSERT(0 == result, "pthread_key_create failed %d.", result); BX_UNUSED(result);
}
TlsData::~TlsData()
{
TlsDataInternal* ti = (TlsDataInternal*)m_internal;
int result = pthread_key_delete(ti->m_id);
BX_ASSERT(0 == result, "pthread_key_delete failed %d.", result); BX_UNUSED(result);
}
void* TlsData::get() const
{
TlsDataInternal* ti = (TlsDataInternal*)m_internal;
return pthread_getspecific(ti->m_id);
}
void TlsData::set(void* _ptr)
{
TlsDataInternal* ti = (TlsDataInternal*)m_internal;
int result = pthread_setspecific(ti->m_id, _ptr);
BX_ASSERT(0 == result, "pthread_setspecific failed %d.", result); BX_UNUSED(result);
}
#endif // BX_PLATFORM_*
} // namespace bx
#endif // BX_CONFIG_SUPPORTS_THREADING
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