UCommon
thread.cpp

A simple example of threading and join operation.

// Copyright (C) 2006-2014 David Sugar, Tycho Softworks.
// Copyright (C) 2015 Cherokees of Idaho.
//
// This file is part of GNU uCommon C++.
//
// GNU uCommon C++ 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.
//
// GNU uCommon C++ 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 GNU uCommon C++. If not, see <http://www.gnu.org/licenses/>.
#ifndef DEBUG
#define DEBUG
#endif
#include <stdio.h>
using namespace ucommon;
static unsigned count = 0;
class testLocal : public Thread::Local
{
private:
virtual void release(void *mem) __FINAL {
::free(mem);
}
virtual void *allocate() __FINAL {
return ::malloc(100);
}
};
static testLocal local;
class testThread : public JoinableThread
{
public:
testThread() : JoinableThread() {};
void run(void) {
assert(local.get() == nullptr);
assert(*local != nullptr);
++count;
::sleep(2);
};
};
extern "C" int main()
{
time_t now, later;
testThread *thr;
void *mem;
assert(local.get() == nullptr);
mem = *local;
assert(mem != nullptr);
assert(mem == *local);
time(&now);
thr = new testThread();
thr->start();
delete thr;
assert(count == 1);
time(&later);
assert(later >= now + 1);
time(&now);
evt.wait(2000);
time(&later);
assert(later >= now + 1);
return 0;
}