icinga2/lib/base/networkstream.cpp

95 lines
2.8 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2014 Icinga Development Team (http://www.icinga.org) *
* *
* This program 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 2 *
* of the License, or (at your option) any later version. *
* *
* This program 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 this program; if not, write to the Free Software Foundation *
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#include "base/networkstream.h"
using namespace icinga;
NetworkStream::NetworkStream(const Socket::Ptr& socket)
: m_Socket(socket), m_Eof(false)
{ }
void NetworkStream::Close(void)
{
m_Socket->Close();
}
/**
* Reads data from the stream.
*
* @param buffer The buffer where data should be stored. May be NULL if you're
* not actually interested in the data.
* @param count The number of bytes to read from the queue.
* @returns The number of bytes actually read.
*/
size_t NetworkStream::Read(void *buffer, size_t count)
{
size_t rc;
if (m_Eof)
BOOST_THROW_EXCEPTION(std::invalid_argument("Tried to read from closed socket."));
try {
rc = m_Socket->Read(buffer, count);
} catch (...) {
m_Eof = true;
throw;
}
if (rc == 0)
m_Eof = true;
return rc;
}
/**
* Writes data to the stream.
*
* @param buffer The data that is to be written.
* @param count The number of bytes to write.
* @returns The number of bytes written
*/
void NetworkStream::Write(const void *buffer, size_t count)
{
size_t rc;
if (m_Eof)
BOOST_THROW_EXCEPTION(std::invalid_argument("Tried to write to closed socket."));
try {
rc = m_Socket->Write(buffer, count);
} catch (...) {
m_Eof = true;
throw;
}
if (rc < count) {
m_Eof = true;
BOOST_THROW_EXCEPTION(std::runtime_error("Short write for socket."));
}
}
bool NetworkStream::IsEof(void) const
{
return m_Eof;
}