(svn r7687) [cbh] - Fix: trains can now enter the bridge from side. They still can't leave it from side (pathfinder will need to be invoked when the other ramp is entered). Also the code is not very clear and needs review. It is more proof of concept than final solution. I hope that somebody smarter (Celestar) can do it better.
/* $Id$ */
#include "stdafx.h"
#include "thread.h"
#include <stdlib.h>
#if defined(__AMIGA__) || defined(__MORPHOS__) || defined(NO_THREADS)
OTTDThread *OTTDCreateThread(OTTDThreadFunc function, void *arg) { return NULL; }
void *OTTDJoinThread(OTTDThread *t) { return NULL; }
void OTTDExitThread(void) { NOT_REACHED(); };
#elif defined(__OS2__)
#define INCL_DOS
#include <os2.h>
#include <process.h>
struct OTTDThread {
TID thread;
OTTDThreadFunc func;
void* arg;
void* ret;
};
static void Proxy(void* arg)
{
OTTDThread* t = arg;
t->ret = t->func(t->arg);
}
OTTDThread* OTTDCreateThread(OTTDThreadFunc function, void* arg)
{
OTTDThread* t = malloc(sizeof(*t));
if (t == NULL) return NULL;
t->func = function;
t->arg = arg;
t->thread = _beginthread(Proxy, NULL, 32768, t);
if (t->thread != -1) {
return t;
} else {
free(t);
return NULL;
}
}
void* OTTDJoinThread(OTTDThread* t)
{
void* ret;
if (t == NULL) return NULL;
DosWaitThread(&t->thread, DCWW_WAIT);
ret = t->ret;
free(t);
return ret;
}
void OTTDExitThread(void)
{
_endthread();
}
#elif defined(UNIX)
#include <pthread.h>
struct OTTDThread {
pthread_t thread;
};
OTTDThread* OTTDCreateThread(OTTDThreadFunc function, void* arg)
{
OTTDThread* t = malloc(sizeof(*t));
if (t == NULL) return NULL;
if (pthread_create(&t->thread, NULL, function, arg) == 0) {
return t;
} else {
free(t);
return NULL;
}
}
void* OTTDJoinThread(OTTDThread* t)
{
void* ret;
if (t == NULL) return NULL;
pthread_join(t->thread, &ret);
free(t);
return ret;
}
void OTTDExitThread(void)
{
pthread_exit(NULL);
}
#elif defined(WIN32)
#include <windows.h>
struct OTTDThread {
HANDLE thread;
OTTDThreadFunc func;
void* arg;
void* ret;
};
static DWORD WINAPI Proxy(LPVOID arg)
{
OTTDThread* t = arg;
t->ret = t->func(t->arg);
return 0;
}
OTTDThread* OTTDCreateThread(OTTDThreadFunc function, void* arg)
{
OTTDThread* t = malloc(sizeof(*t));
DWORD dwThreadId;
if (t == NULL) return NULL;
t->func = function;
t->arg = arg;
t->thread = CreateThread(NULL, 0, Proxy, t, 0, &dwThreadId);
if (t->thread != NULL) {
return t;
} else {
free(t);
return NULL;
}
}
void* OTTDJoinThread(OTTDThread* t)
{
void* ret;
if (t == NULL) return NULL;
WaitForSingleObject(t->thread, INFINITE);
CloseHandle(t->thread);
ret = t->ret;
free(t);
return ret;
}
void OTTDExitThread(void)
{
ExitThread(0);
}
#endif