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dpavlin |
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/* |
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* PearPC |
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* systhread.cc |
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* |
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* Copyright (C) 2003 Sebastian Biallas (sb@biallas.net) |
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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 version 2 as |
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* published by the Free Software Foundation. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU 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 Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
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*/ |
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#include <cstdlib> |
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#include "system/systhread.h" |
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#define WIN32_LEAN_AND_MEAN |
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#include <windows.h> |
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#include <windowsx.h> |
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#include <commctrl.h> |
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#include <process.h> |
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struct sys_win32_semaphore { |
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CRITICAL_SECTION cs; |
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HANDLE sem; |
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}; |
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int sys_create_mutex(sys_mutex *m) |
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{ |
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*m = malloc(sizeof (CRITICAL_SECTION)); |
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InitializeCriticalSection((CRITICAL_SECTION *)*m); |
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return 0; |
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} |
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int sys_create_semaphore(sys_semaphore *s) |
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{ |
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*s = malloc(sizeof (sys_win32_semaphore)); |
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InitializeCriticalSection(&((sys_win32_semaphore *)*s)->cs); |
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((sys_win32_semaphore *)*s)->sem = CreateSemaphore(NULL, 0, 1000000, NULL); |
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return 0; |
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} |
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int sys_create_thread(sys_thread *t, int flags, sys_thread_function start_routine, void *arg) |
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{ |
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unsigned long *p = (unsigned long *)malloc(sizeof (unsigned long)); |
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*t = p; |
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*p = _beginthread((void (*)(void *))start_routine, 0, arg); |
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return 0; |
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} |
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void sys_destroy_mutex(sys_mutex m) |
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{ |
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DeleteCriticalSection((CRITICAL_SECTION *)m); |
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free(m); |
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} |
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void sys_destroy_semaphore(sys_semaphore s) |
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{ |
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DeleteCriticalSection(&((sys_win32_semaphore *)s)->cs); |
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CloseHandle(((sys_win32_semaphore *)s)->sem); |
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free(s); |
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} |
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void sys_destroy_thread(sys_thread t) |
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{ |
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// NOOP |
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} |
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int sys_lock_mutex(sys_mutex m) |
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{ |
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EnterCriticalSection((CRITICAL_SECTION *)m); |
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return 0; |
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} |
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int sys_trylock_mutex(sys_mutex m) |
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{ |
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// this doesnt seems to be possible on windows |
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EnterCriticalSection((CRITICAL_SECTION *)m); |
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return 0; |
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} |
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void sys_unlock_mutex(sys_mutex m) |
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{ |
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LeaveCriticalSection((CRITICAL_SECTION *)m); |
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} |
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void sys_signal_semaphore(sys_semaphore s) |
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{ |
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ReleaseSemaphore(((sys_win32_semaphore *)s)->sem, 1, NULL); |
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} |
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void sys_signal_all_semaphore(sys_semaphore s) |
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{ |
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ReleaseSemaphore(((sys_win32_semaphore *)s)->sem, 1, NULL); |
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} |
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void sys_wait_semaphore(sys_semaphore s) |
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{ |
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LeaveCriticalSection(&((sys_win32_semaphore *)s)->cs); |
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WaitForSingleObject(((sys_win32_semaphore *)s)->sem, INFINITE); |
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EnterCriticalSection(&((sys_win32_semaphore *)s)->cs); |
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} |
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void sys_wait_semaphore_bounded(sys_semaphore s, int ms) |
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{ |
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LeaveCriticalSection(&((sys_win32_semaphore *)s)->cs); |
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WaitForSingleObject(((sys_win32_semaphore *)s)->sem, ms); |
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EnterCriticalSection(&((sys_win32_semaphore *)s)->cs); |
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} |
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void sys_lock_semaphore(sys_semaphore s) |
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{ |
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EnterCriticalSection(&((sys_win32_semaphore *)s)->cs); |
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} |
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void sys_unlock_semaphore(sys_semaphore s) |
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{ |
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LeaveCriticalSection(&((sys_win32_semaphore *)s)->cs); |
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} |
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void sys_exit_thread(void *ret) |
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{ |
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} |
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void *sys_join_thread(sys_thread t) |
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{ |
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} |