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/*********************************************************************/
// libthreadar - is a library providing several C++ classes to work with threads
// Copyright (C) 2014-2020 Denis Corbin
//
// This file is part of libthreadar
//
// libthreadar is free software: you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// libhtreadar 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 Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with libthreadar. If not, see <http://www.gnu.org/licenses/>
//
//----
// to contact the author: dar.linux@free.fr
/*********************************************************************/
extern "C"
{
#include <unistd.h>
}
#include "../../src/libthreadar.hpp"
using namespace std;
class myfile: public libthreadar::thread
{
public:
myfile(libthreadar::barrier* ptr, unsigned int index): syncr(ptr), ind(index)
{
if(ptr == nullptr)
throw libthreadar::THREADAR_BUG;
};
~myfile()
{
cancel();
join();
}
protected:
virtual void inherited_run() override
{
cout << "thread " << ind << " starting..." << endl;
syncr->wait();
cout << "thread " << ind << " passed the barrier!" << endl;
}
private:
libthreadar::barrier* syncr;
unsigned int ind;
};
void release_deque(deque<myfile*> & dek)
{
deque<myfile*>::iterator it = dek.begin();
while(it != dek.end())
{
if(*it != nullptr)
delete *it;
++it;
}
dek.clear();
}
int main()
{
unsigned int num = 10;
libthreadar::barrier bar(num);
deque<myfile*> file;
myfile* ptr = nullptr;
cout << "barrier implementation: " << libthreadar::barrier::used_implementation() << endl;
try
{
for(unsigned int i = 0 ; i < num ; ++i)
{
ptr = new myfile(&bar, i);
if(ptr == nullptr)
release_deque(file);
else
file.push_back(ptr);
}
for(deque<myfile*>::iterator it = file.begin(); it != file.end(); ++it)
(*it)->run();
for(deque<myfile*>::iterator it = file.begin(); it != file.end(); ++it)
(*it)->join();
}
catch(...)
{
release_deque(file);
throw;
}
release_deque(file);
return 0;
}
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