jpipestream.cpp
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/***************************************************************************
* Copyright (C) 2005 by Jeff Ferr *
* root@sat *
* *
* 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., *
* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
#include "Stdafx.h"
#include "jpipestream.h"
namespace jio {
PipeStream::PipeStream(int size):
jio::InputStream(), jio::OutputStream()
{
InputStream::SetClassName("jio::PipeStream");
int r;
#ifdef _WIN32
r = CreatePipe (&_fdr, &_fdw, 0, size);
#else
r = pipe (_fds);
#endif
if (r <= 0) {
_is_open = false;
}
_is_open = true;
}
PipeStream::~PipeStream()
{
}
int64_t PipeStream::Read(char *data_, int64_t length_)
{
if (_is_open == false) {
return 0;
}
int64_t r;
#ifdef _WIN32
ReadFile(_fdr, data_, (DWORD)length_, (DWORD *)&r, 0);
#else
r = read(_fds[0], data_, length_);
#endif
return r;
}
int64_t PipeStream::Write(const char *data_, int64_t length_)
{
int64_t r;
#ifdef _WIN32
WriteFile(_fdw, data_, (DWORD)length_, (DWORD *)&r, 0);
#else
r = write(_fds[1], data_, length_);
#endif
return r;
}
void PipeStream::Close()
{
#ifdef _WIN32
CloseHandle(_fdr);
CloseHandle(_fdw);
#else
close(_fds[0]);
close(_fds[1]);
#endif
_is_open = false;
}
}