mirror of
https://gitlab.uni-freiburg.de/opensourcevdi/spice
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78c1465ed3
When using config.h, it must be the very first include in all source files since it contains #define that may change the compilation process (eg libc structure layout changes when it's used to enable large file support on 32 bit x86 archs). This commit adds it at the beginning of all .c and .cpp files
137 lines
3.3 KiB
C++
137 lines
3.3 KiB
C++
/*
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Copyright (C) 2009 Red Hat, Inc.
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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 2.1 of the License, or (at your option) any later version.
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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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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, see <http://www.gnu.org/licenses/>.
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#include "common.h"
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#include "threads.h"
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#include "utils.h"
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#include "debug.h"
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#ifdef WIN32
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#include <sys/timeb.h>
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#endif
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#ifdef HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif
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Thread::Thread(thread_main_t thread_main, void* opaque)
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{
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int r = pthread_create(&_thread, NULL, thread_main, opaque);
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if (r) {
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THROW("failed %d", r);
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}
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}
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void Thread::join()
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{
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pthread_join(_thread, NULL);
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}
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static inline void rel_time(struct timespec& time, uint64_t delta_nano)
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{
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#ifdef WIN32
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struct _timeb now;
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_ftime_s(&now);
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time.tv_sec = (long)now.time;
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time.tv_nsec = now.millitm * 1000 * 1000;
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#elif defined(HAVE_CLOCK_GETTIME)
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clock_gettime(CLOCK_MONOTONIC, &time);
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#else
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struct timeval tv;
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gettimeofday(&tv,NULL);
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time.tv_sec = tv.tv_sec;
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time.tv_nsec = tv.tv_usec*1000;
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#endif
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delta_nano += (uint64_t)time.tv_sec * 1000 * 1000 * 1000;
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delta_nano += time.tv_nsec;
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time.tv_sec = long(delta_nano / (1000 * 1000 * 1000));
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time.tv_nsec = long(delta_nano % (1000 * 1000 * 1000));
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}
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void Lock::timed_lock(uint64_t timout_nano)
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{
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struct timespec time;
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int r;
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rel_time(time, timout_nano);
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if ((r = pthread_mutex_timedlock(_mutex.get(), &time))) {
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_locked = false;
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if (r != ETIMEDOUT) {
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THROW("failed %d", r);
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}
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return;
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}
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_locked = true;
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}
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Condition::Condition()
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{
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#ifdef WIN32
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pthread_cond_init(&_condition, NULL);
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#else
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pthread_condattr_t attr;
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pthread_condattr_init(&attr);
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int r;
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if ((r = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC))) {
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THROW("set clock failed %d", r);
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}
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pthread_cond_init(&_condition, &attr);
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pthread_condattr_destroy(&attr);
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#endif
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}
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bool Condition::timed_wait(Lock& lock, uint64_t nano)
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{
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struct timespec time;
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rel_time(time, nano);
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int r = pthread_cond_timedwait(&_condition, lock.get(), &time);
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if (r) {
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if (r != ETIMEDOUT) {
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THROW("failed %d", r);
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}
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return false;
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}
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return true;
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}
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Mutex::Mutex(Type type)
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{
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pthread_mutexattr_t attr;
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pthread_mutexattr_init(&attr);
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if (type == NORMAL) {
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pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_NORMAL);
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} else if (type == RECURSIVE) {
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pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
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} else {
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THROW("invalid type %d", type);
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}
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int r;
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if ((r = pthread_mutex_init(&_mutex, &attr))) {
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THROW("int failed %d", r);
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}
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pthread_mutexattr_destroy(&attr);
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}
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Mutex::~Mutex()
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{
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pthread_mutex_destroy(&_mutex);
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}
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