185 lines
3.4 KiB
C
185 lines
3.4 KiB
C
/*
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* VARCem Virtual Archaelogical Computer EMulator.
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* An emulator of (mostly) x86-based PC systems and devices,
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* using the ISA,EISA,VLB,MCA and PCI system buses, roughly
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* spanning the era between 1981 and 1995.
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*
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* This file is part of the VARCem Project.
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*
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* Implement threads and mutexes for the Win32 platform.
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*
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* Version: @(#)win_thread.c 1.0.2 2018/02/21
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*
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* Authors: Fred N. van Kempen, <decwiz@yahoo.com>
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* Sarah Walker, <tommowalker@tommowalker.co.uk>
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*
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* Copyright 2017,2018 Fred N. van Kempen.
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* Copyright 2008-2018 Sarah Walker.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the:
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*
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* Free Software Foundation, Inc.
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* 59 Temple Place - Suite 330
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* Boston, MA 02111-1307
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* USA.
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*/
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#define UNICODE
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#include <windows.h>
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#include <windowsx.h>
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#include <process.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <string.h>
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#include <stdlib.h>
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#include <wchar.h>
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#include "../emu.h"
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#include "../plat.h"
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typedef struct {
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HANDLE handle;
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} win_event_t;
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thread_t *
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thread_create(void (*func)(void *param), void *param)
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{
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return((thread_t *)_beginthread(func, 0, param));
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}
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void
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thread_kill(void *arg)
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{
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if (arg == NULL) return;
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TerminateThread(arg, 0);
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}
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int
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thread_wait(thread_t *arg, int timeout)
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{
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if (arg == NULL) return(0);
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if (timeout == -1)
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timeout = INFINITE;
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if (WaitForSingleObject(arg, timeout)) return(1);
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return(0);
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}
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event_t *
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thread_create_event(void)
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{
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win_event_t *ev = malloc(sizeof(win_event_t));
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ev->handle = CreateEvent(NULL, FALSE, FALSE, NULL);
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return((event_t *)ev);
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}
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void
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thread_set_event(event_t *arg)
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{
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win_event_t *ev = (win_event_t *)arg;
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if (arg == NULL) return;
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SetEvent(ev->handle);
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}
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void
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thread_reset_event(event_t *arg)
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{
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win_event_t *ev = (win_event_t *)arg;
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if (arg == NULL) return;
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ResetEvent(ev->handle);
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}
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int
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thread_wait_event(event_t *arg, int timeout)
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{
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win_event_t *ev = (win_event_t *)arg;
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if (arg == NULL) return(0);
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if (ev->handle == NULL) return(0);
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if (timeout == -1)
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timeout = INFINITE;
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if (WaitForSingleObject(ev->handle, timeout)) return(1);
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return(0);
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}
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void
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thread_destroy_event(event_t *arg)
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{
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win_event_t *ev = (win_event_t *)arg;
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if (arg == NULL) return;
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CloseHandle(ev->handle);
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free(ev);
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}
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mutex_t *
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thread_create_mutex(wchar_t *name)
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{
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return((mutex_t*)CreateMutex(NULL, FALSE, name));
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}
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void
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thread_close_mutex(mutex_t *mutex)
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{
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if (mutex == NULL) return;
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CloseHandle((HANDLE)mutex);
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}
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int
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thread_wait_mutex(mutex_t *mutex)
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{
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if (mutex == NULL) return(0);
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DWORD dwres = WaitForSingleObject((HANDLE)mutex, INFINITE);
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if (dwres == WAIT_OBJECT_0) return(1);
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return(0);
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}
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int
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thread_release_mutex(mutex_t *mutex)
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{
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if (mutex == NULL) return(0);
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return(!!ReleaseMutex((HANDLE)mutex));
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}
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