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Location: cpp/openttd-patchpack/source/src/thread_win32.cpp
r12637:f39ded7768d2
2.8 KiB
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(svn r17102) -Update from WebTranslator v3.0:
polish - 69 changes by Adam123
spanish - 1 changes by Terkhen
polish - 69 changes by Adam123
spanish - 1 changes by Terkhen
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 | /* $Id$ */
/** @file thread_win32.cpp Win32 thread implementation of Threads. */
#include "stdafx.h"
#include "thread.h"
#include "debug.h"
#include "core/alloc_func.hpp"
#include <stdlib.h>
#include <windows.h>
#include <process.h>
/**
* Win32 thread version for ThreadObject.
*/
class ThreadObject_Win32 : public ThreadObject {
private:
HANDLE thread; ///< System thread identifier.
uint id; ///< Thread identifier.
OTTDThreadFunc proc; ///< External thread procedure.
void *param; ///< Parameter for the external thread procedure.
bool self_destruct; ///< Free ourselves when done?
public:
/**
* Create a win32 thread and start it, calling proc(param).
*/
ThreadObject_Win32(OTTDThreadFunc proc, void *param, bool self_destruct) :
thread(NULL),
id(0),
proc(proc),
param(param),
self_destruct(self_destruct)
{
this->thread = (HANDLE)_beginthreadex(NULL, 0, &stThreadProc, this, CREATE_SUSPENDED, &this->id);
if (this->thread == NULL) return;
ResumeThread(this->thread);
}
/* virtual */ ~ThreadObject_Win32()
{
if (this->thread != NULL) {
CloseHandle(this->thread);
this->thread = NULL;
}
}
/* virtual */ bool Exit()
{
assert(GetCurrentThreadId() == this->id);
/* For now we terminate by throwing an error, gives much cleaner cleanup */
throw OTTDThreadExitSignal();
}
/* virtual */ void Join()
{
/* You cannot join yourself */
assert(GetCurrentThreadId() != this->id);
WaitForSingleObject(this->thread, INFINITE);
}
private:
/**
* On thread creation, this function is called, which calls the real startup
* function. This to get back into the correct instance again.
*/
static uint CALLBACK stThreadProc(void *thr)
{
((ThreadObject_Win32 *)thr)->ThreadProc();
return 0;
}
/**
* A new thread is created, and this function is called. Call the custom
* function of the creator of the thread.
*/
void ThreadProc()
{
try {
this->proc(this->param);
} catch (OTTDThreadExitSignal) {
} catch (...) {
NOT_REACHED();
}
if (self_destruct) delete this;
}
};
/* static */ bool ThreadObject::New(OTTDThreadFunc proc, void *param, ThreadObject **thread)
{
ThreadObject *to = new ThreadObject_Win32(proc, param, thread == NULL);
if (thread != NULL) *thread = to;
return true;
}
/**
* Win32 thread version of ThreadMutex.
*/
class ThreadMutex_Win32 : public ThreadMutex {
private:
CRITICAL_SECTION critical_section;
public:
ThreadMutex_Win32()
{
InitializeCriticalSection(&this->critical_section);
}
/* virtual */ ~ThreadMutex_Win32()
{
DeleteCriticalSection(&this->critical_section);
}
/* virtual */ void BeginCritical()
{
EnterCriticalSection(&this->critical_section);
}
/* virtual */ void EndCritical()
{
LeaveCriticalSection(&this->critical_section);
}
};
/* static */ ThreadMutex *ThreadMutex::New()
{
return new ThreadMutex_Win32();
}
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