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/* -*- c++ -*- */
/*
* Copyright (C) 2001-2003 William E. Kempf
* Copyright (C) 2007 Anthony Williams
* Copyright 2008 Free Software Foundation, Inc.
*
* Distributed under the Boost Software License, Version 1.0. (See accompanying
* file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
*/
/*
* This was extracted from Boost 1.35.0 and fixed.
*/
#include <gnuradio/thread/thread_group.h>
#include <boost/make_unique.hpp>
namespace gr {
namespace thread {
thread_group::thread_group() {}
thread_group::~thread_group() {}
boost::thread* thread_group::create_thread(const boost::function0<void>& threadfunc)
{
// No scoped_lock required here since the only "shared data" that's
// modified here occurs inside add_thread which does scoped_lock.
auto thrd = boost::make_unique<boost::thread>(threadfunc);
auto thrdp = thrd.get();
add_thread(std::move(thrd));
return thrdp;
}
void thread_group::add_thread(std::unique_ptr<boost::thread> thrd)
{
boost::lock_guard<boost::shared_mutex> guard(m_mutex);
// For now we'll simply ignore requests to add a thread object
// multiple times. Should we consider this an error and either
// throw or return an error value?
auto it = std::find(m_threads.begin(), m_threads.end(), thrd);
BOOST_ASSERT(it == m_threads.end());
if (it == m_threads.end())
m_threads.push_back(std::move(thrd));
}
void thread_group::remove_thread(boost::thread* thrd)
{
boost::lock_guard<boost::shared_mutex> guard(m_mutex);
// For now we'll simply ignore requests to remove a thread
// object that's not in the group. Should we consider this an
// error and either throw or return an error value?
auto it = std::find_if(
m_threads.begin(),
m_threads.end(),
[&thrd](std::unique_ptr<boost::thread>& it) -> bool { return thrd == it.get(); });
BOOST_ASSERT(it != m_threads.end());
if (it != m_threads.end())
m_threads.erase(it);
}
void thread_group::join_all()
{
boost::shared_lock<boost::shared_mutex> guard(m_mutex);
for (auto& thrd : m_threads) {
thrd->join();
}
}
void thread_group::interrupt_all()
{
boost::shared_lock<boost::shared_mutex> guard(m_mutex);
for (auto& thrd : m_threads) {
thrd->interrupt();
}
}
size_t thread_group::size() const
{
boost::shared_lock<boost::shared_mutex> guard(m_mutex);
return m_threads.size();
}
} /* namespace thread */
} /* namespace gr */
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