// Copyright 2016 The University of North Carolina at Chapel Hill
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//    http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
// Please send all BUG REPORTS to <pavel@cs.unc.edu>.
// <http://gamma.cs.unc.edu/FasTC/>

#include "FasTC/ThreadSafeStreambuf.h"

#include <cstdlib>
#include <cstdio>
#include <cstring>
#include <iostream>
#include <sstream>
#include <string>

#include "Thread.h"

ThreadSafeStreambuf::ThreadSafeStreambuf(std::ostream &sink)
  : ::std::streambuf()
  , m_Sink(sink)
  , m_Mutex(new TCMutex)
{ }

ThreadSafeStreambuf::~ThreadSafeStreambuf() {
  if(m_Mutex) {
    delete m_Mutex;
  }
}

::std::streamsize ThreadSafeStreambuf::xsputn(const char_type *s,
                                              ::std::streamsize count) {
  // Lock it.
  TCLock lock(*m_Mutex);
  ::std::streambuf *sinkStream = m_Sink.rdbuf();
  return sinkStream->sputn(s, count);
}
