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Thread.cpp
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136 lines (108 loc) · 2.57 KB
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/*
libutils - a collection of usable tools
Copyright (c) 2015 Tor Krill <tor@openproducts.com>
This file is part of libutils
libutils is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Foobar is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Foobar. If not, see <http://www.gnu.org/licenses/>.
*/
#include "Thread.h"
#include "Exceptions.h"
#include <sys/signal.h>
#include <string>
#include <cstring>
namespace Utils{
Thread::Thread(bool detached): thread(0), detached(detached),state( UnInitialized)
{
int s = pthread_attr_init(&attr);
if( s != 0 ){
throw ErrnoException("Failed to init thread attribute");
}
if( this->detached ){
s = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
if( s != 0 ){
throw ErrnoException("Failed to set detached state on thread attribute");
}
}
}
void* Thread::BootstrapThread(void* obj)
{
auto* q=static_cast<Thread*>(obj);
if (q)
{
q->state = Initialized;
q->PreRun();
q->state = Running;
q->Run();
q->state = HasRun;
q->PostRun();
q->state = Terminated;
}
return nullptr;
}
bool Thread::isRunning()
{
return this->state == Running;
}
void Thread::Start()
{
pthread_create( &this->thread, &this->attr, Thread::BootstrapThread, this);
}
void Thread::Kill()
{
this->Signal(SIGKILL);
}
void Thread::Yield()
{
sched_yield();
}
static void* trampolin(void* arg)
{
auto* fn = static_cast<Thread::Function*>(arg);
if( fn )
{
(*fn)();
}
return nullptr;
}
void Thread::Async(Function *fn)
{
pthread_t tid = 0;
pthread_attr_t attr;
if( pthread_attr_init(&attr) != 0 )
{
throw ErrnoException("Failed to initialize thread attributes");
}
if( pthread_attr_setdetachstate( & attr, PTHREAD_CREATE_DETACHED ) != 0 )
{
throw ErrnoException("Failed to set thread attribute detached");
}
if( pthread_create( &tid, &attr, trampolin, fn) != 0 )
{
throw ErrnoException("Failed to create thread");
}
}
void Thread::Signal(int signum)
{
pthread_kill( this->thread, signum );
}
int Thread::Join()
{
return pthread_join( this->thread, nullptr);
}
Thread::State Thread::RunState()
{
return this->state;
}
Thread::~Thread()
{
pthread_attr_destroy(&this->attr);
}
}