dlib C++ Library - threads_kernel_1.cpp

// Copyright (C) 2003 Davis E. King (davis@dlib.net)
// License: Boost Software License See LICENSE.txt for the full license.
#ifndef DLIB_THREADS_KERNEL_1_CPp_
#define DLIB_THREADS_KERNEL_1_CPp_
#include "../platform.h"
#ifdef WIN32
#include "threads_kernel_1.h"
#include "../windows_magic.h"
#include <windows.h>
#include <process.h>
namespace dlib
{
 thread_id_type get_thread_id(
 )
 {
 return GetCurrentThreadId();
 }
 namespace threads_kernel_shared_helpers
 {
 // -----------------------------------------------------------------------------------
 struct info
 {
 void* param;
 void (*funct)(void*);
 };
 // -----------------------------------------------------------------------------------
 unsigned int __stdcall thread_starter (
 void* param
 )
 {
 info* alloc_p = static_cast<info*>(param);
 info p = *alloc_p;
 delete alloc_p;
 p.funct(p.param);
 return 0;
 }
 // -----------------------------------------------------------------------------------
 bool spawn_thread (
 void (*funct)(void*),
 void* param
 )
 {
 info* p;
 try { p = new info; }
 catch (...) { return false; }
 p->funct = funct;
 p->param = param;
 unsigned int garbage;
 HANDLE thandle = (HANDLE)_beginthreadex (NULL,0,thread_starter,p,0,&garbage);
 // make thread and add it to the pool
 // return false if _beginthreadex didn't work
 if ( thandle == 0)
 {
 delete p;
 return false;
 }
 // throw away the thread handle
 CloseHandle(thandle); 
 return true;
 }
 // -----------------------------------------------------------------------------------
 }
}
#endif // WIN32
#endif // DLIB_THREADS_KERNEL_1_CPp_