mirror of
https://github.com/VectorCamp/vectorscan.git
synced 2025-06-28 16:41:01 +03:00
104 lines
3.5 KiB
C++
104 lines
3.5 KiB
C++
/*
|
|
* Copyright (c) 2015-2018, Intel Corporation
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions are met:
|
|
*
|
|
* * Redistributions of source code must retain the above copyright notice,
|
|
* this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* * Neither the name of Intel Corporation nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
|
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
|
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
|
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
|
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include "Thread.h"
|
|
#include "common.h"
|
|
#include "sig.h"
|
|
|
|
#include <cstdlib>
|
|
#include <iostream>
|
|
|
|
#ifndef _WIN32
|
|
static const size_t COLLIDER_THREAD_STACK_SIZE = 8192 * 1024;
|
|
|
|
void Thread::start() {
|
|
// Some systems, notably Mac OS X, use a default stack size that is
|
|
// smaller than what we want (particularly given that we're planning on
|
|
// running PCRE, which recurses inside pcre_exec). We attempt to
|
|
// increase it to 8MB.
|
|
int ret;
|
|
pthread_attr_t attr;
|
|
ret = pthread_attr_init(&attr);
|
|
if (ret) {
|
|
std::cerr << "pthread_attr_init failed" << std::endl;
|
|
exit(1);
|
|
}
|
|
|
|
size_t stacksize = 0;
|
|
ret = pthread_attr_getstacksize(&attr, &stacksize);
|
|
if (ret) {
|
|
std::cerr << "Warning: can't query stack size with "
|
|
"pthread_attr_getstacksize" << std::endl;
|
|
goto create_thread;
|
|
}
|
|
|
|
if (stacksize < COLLIDER_THREAD_STACK_SIZE) {
|
|
ret = pthread_attr_setstacksize(&attr, COLLIDER_THREAD_STACK_SIZE);
|
|
if (ret) {
|
|
std::cerr << "Warning: pthread_attr_setstacksize failed, "
|
|
"unable to set stack size to "
|
|
<< COLLIDER_THREAD_STACK_SIZE << " bytes." << std::endl;
|
|
// Fall through: this isn't necessarily fatal (yet!)
|
|
}
|
|
}
|
|
|
|
create_thread:
|
|
ret = pthread_create(&thread, &attr, &runThread, this);
|
|
if (ret) {
|
|
std::cerr << "pthread_create failed for thread id " << thread_id
|
|
<< std::endl;
|
|
exit(1);
|
|
}
|
|
}
|
|
|
|
void Thread::join() { pthread_join(thread, nullptr); }
|
|
|
|
#else // windows
|
|
|
|
void Thread::start() { thread = std::thread(&runThread, this); }
|
|
|
|
void Thread::join() { thread.join(); }
|
|
|
|
#endif
|
|
|
|
// Dispatch
|
|
void *Thread::runThread(void *thr) {
|
|
if (!no_signal_handler) {
|
|
setSignalStack();
|
|
}
|
|
((Thread *)thr)->run();
|
|
return nullptr;
|
|
}
|
|
|
|
|
|
Thread::Thread(size_t num) : thread_id(num), thread() {}
|
|
|
|
Thread::~Thread() {}
|