mirror of https://github.com/bochs-emu/Bochs
111 lines
2.9 KiB
C++
111 lines
2.9 KiB
C++
/////////////////////////////////////////////////////////////////////////
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// $Id$
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/////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) 2017-2020 The Bochs Project
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Lesser General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library 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 GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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/////////////////////////////////////////////////////////////////////////
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#include "bochs.h"
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#include "bxthread.h"
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// Bochs multi-threading support
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void bx_create_event(bx_thread_event_t *thread_ev)
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{
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#if defined(WIN32)
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thread_ev->event = CreateEvent(NULL, FALSE, FALSE, "event");
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#else
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pthread_cond_init(&thread_ev->cond, NULL);
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pthread_mutex_init(&thread_ev->lock, NULL);
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#endif
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}
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void bx_destroy_event(bx_thread_event_t *thread_ev)
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{
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#if defined(WIN32)
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CloseHandle(thread_ev->event);
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#else
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pthread_cond_destroy(&thread_ev->cond);
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pthread_mutex_destroy(&thread_ev->lock);
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#endif
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}
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void bx_set_event(bx_thread_event_t *thread_ev)
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{
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#if defined(WIN32)
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SetEvent(thread_ev->event);
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#else
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pthread_mutex_lock(&thread_ev->lock);
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pthread_cond_signal(&thread_ev->cond);
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pthread_mutex_unlock(&thread_ev->lock);
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#endif
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}
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bx_bool bx_wait_for_event(bx_thread_event_t *thread_ev)
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{
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#if defined(WIN32)
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if (WaitForSingleObject(thread_ev->event, 1) == WAIT_OBJECT_0) {
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return 1;
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} else {
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return 0;
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}
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#else
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pthread_mutex_lock(&thread_ev->lock);
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pthread_cond_wait(&thread_ev->cond, &thread_ev->lock);
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pthread_mutex_unlock(&thread_ev->lock);
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return 1;
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#endif
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}
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bool BOCHSAPI_MSVCONLY bx_create_sem(bx_thread_sem_t *thread_sem)
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{
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#if defined(WIN32)
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thread_sem->sem = CreateSemaphore(NULL, 0, 1, NULL);
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return thread_sem->sem != NULL;
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#else
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int ret = sem_init(&thread_sem->sem, 0, 0);
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return ret == 0;
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#endif
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}
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void BOCHSAPI_MSVCONLY bx_destroy_sem(bx_thread_sem_t *thread_sem)
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{
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#if defined(WIN32)
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CloseHandle(thread_sem->sem);
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#else
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sem_destroy(&thread_sem->sem);
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#endif
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}
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void BOCHSAPI_MSVCONLY bx_wait_sem(bx_thread_sem_t *thread_sem)
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{
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#if defined(WIN32)
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WaitForSingleObject(thread_sem->sem, INFINITE);
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#else
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sem_wait(&thread_sem->sem);
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#endif
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}
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void BOCHSAPI_MSVCONLY bx_set_sem(bx_thread_sem_t *thread_sem)
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{
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#if defined(WIN32)
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ReleaseSemaphore(thread_sem->sem, 1, NULL);
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#else
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sem_post(&thread_sem->sem);
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#endif
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}
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