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tbb_thread.cpp
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192 lines (173 loc) · 5.73 KB
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/*
Copyright (c) 2005-2019 Intel Corporation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#if _WIN32||_WIN64
#include <process.h> // _beginthreadex()
#endif
#include <errno.h>
#include "tbb_misc.h" // handle_win_error()
#include "tbb/tbb_stddef.h"
#include "tbb/tbb_thread.h"
#include "tbb/tbb_allocator.h"
#include "tbb/global_control.h" // thread_stack_size
#include "governor.h" // default_num_threads()
#if __TBB_WIN8UI_SUPPORT
#include <thread>
#endif
namespace tbb {
namespace internal {
//! Allocate a closure
void* allocate_closure_v3( size_t size )
{
return allocate_via_handler_v3( size );
}
//! Free a closure allocated by allocate_closure_v3
void free_closure_v3( void *ptr )
{
deallocate_via_handler_v3( ptr );
}
void tbb_thread_v3::join()
{
if (!joinable())
handle_perror( EINVAL, "tbb_thread::join" ); // Invalid argument
if (this_tbb_thread::get_id() == get_id())
handle_perror( EDEADLK, "tbb_thread::join" ); // Resource deadlock avoided
#if _WIN32||_WIN64
#if __TBB_WIN8UI_SUPPORT
std::thread* thread_tmp=(std::thread*)my_thread_id;
thread_tmp->join();
delete thread_tmp;
#else // __TBB_WIN8UI_SUPPORT
DWORD status = WaitForSingleObjectEx( my_handle, INFINITE, FALSE );
if ( status == WAIT_FAILED )
handle_win_error( GetLastError() );
BOOL close_stat = CloseHandle( my_handle );
if ( close_stat == 0 )
handle_win_error( GetLastError() );
my_thread_id = 0;
#endif // __TBB_WIN8UI_SUPPORT
#else
int status = pthread_join( my_handle, NULL );
if( status )
handle_perror( status, "pthread_join" );
#endif // _WIN32||_WIN64
my_handle = 0;
}
void tbb_thread_v3::detach() {
if (!joinable())
handle_perror( EINVAL, "tbb_thread::detach" ); // Invalid argument
#if _WIN32||_WIN64
BOOL status = CloseHandle( my_handle );
if ( status == 0 )
handle_win_error( GetLastError() );
my_thread_id = 0;
#else
int status = pthread_detach( my_handle );
if( status )
handle_perror( status, "pthread_detach" );
#endif // _WIN32||_WIN64
my_handle = 0;
}
void tbb_thread_v3::internal_start( __TBB_NATIVE_THREAD_ROUTINE_PTR(start_routine),
void* closure ) {
#if _WIN32||_WIN64
#if __TBB_WIN8UI_SUPPORT
std::thread* thread_tmp=new std::thread(start_routine, closure);
my_handle = thread_tmp->native_handle();
// TODO: to find out the way to find thread_id without GetThreadId and other
// desktop functions.
// Now tbb_thread does have its own thread_id that stores std::thread object
my_thread_id = (size_t)thread_tmp;
#else
unsigned thread_id;
// The return type of _beginthreadex is "uintptr_t" on new MS compilers,
// and 'unsigned long' on old MS compilers. uintptr_t works for both.
uintptr_t status = _beginthreadex( NULL, (unsigned)global_control::active_value(global_control::thread_stack_size),
start_routine, closure, 0, &thread_id );
if( status==0 )
handle_perror(errno,"__beginthreadex");
else {
my_handle = (HANDLE)status;
my_thread_id = thread_id;
}
#endif
#else
pthread_t thread_handle;
int status;
pthread_attr_t stack_size;
status = pthread_attr_init( &stack_size );
if( status )
handle_perror( status, "pthread_attr_init" );
status = pthread_attr_setstacksize( &stack_size, global_control::active_value(global_control::thread_stack_size) );
if( status )
handle_perror( status, "pthread_attr_setstacksize" );
status = pthread_create( &thread_handle, &stack_size, start_routine, closure );
if( status )
handle_perror( status, "pthread_create" );
status = pthread_attr_destroy( &stack_size );
if( status )
handle_perror( status, "pthread_attr_destroy" );
my_handle = thread_handle;
#endif // _WIN32||_WIN64
}
unsigned tbb_thread_v3::hardware_concurrency() __TBB_NOEXCEPT(true) {
return governor::default_num_threads();
}
tbb_thread_v3::id thread_get_id_v3() {
#if _WIN32||_WIN64
return tbb_thread_v3::id( GetCurrentThreadId() );
#else
return tbb_thread_v3::id( pthread_self() );
#endif // _WIN32||_WIN64
}
void move_v3( tbb_thread_v3& t1, tbb_thread_v3& t2 )
{
if (t1.joinable())
t1.detach();
t1.my_handle = t2.my_handle;
t2.my_handle = 0;
#if _WIN32||_WIN64
t1.my_thread_id = t2.my_thread_id;
t2.my_thread_id = 0;
#endif // _WIN32||_WIN64
}
void thread_yield_v3()
{
__TBB_Yield();
}
void thread_sleep_v3(const tick_count::interval_t &i)
{
#if _WIN32||_WIN64
tick_count t0 = tick_count::now();
tick_count t1 = t0;
for(;;) {
double remainder = (i-(t1-t0)).seconds()*1e3; // milliseconds remaining to sleep
if( remainder<=0 ) break;
DWORD t = remainder>=INFINITE ? INFINITE-1 : DWORD(remainder);
#if !__TBB_WIN8UI_SUPPORT
Sleep( t );
#else
std::chrono::milliseconds sleep_time( t );
std::this_thread::sleep_for( sleep_time );
#endif
t1 = tick_count::now();
}
#else
struct timespec req;
double sec = i.seconds();
req.tv_sec = static_cast<long>(sec);
req.tv_nsec = static_cast<long>( (sec - req.tv_sec)*1e9 );
nanosleep(&req, NULL);
#endif // _WIN32||_WIN64
}
} // internal
} // tbb