jpipe.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 "jpipe.h"
namespace jshared {
Pipe::Pipe(int size_, int perms_):
jcommon::Object()
{
jcommon::Object::SetClassName("jshared::Pipe");
_is_closed = false;
#ifdef _WIN32
if (CreatePipe(&_fdr, &_fdw, 0, size_) <= 0) {
#else
if (pipe(_pipe) < 0) {
#endif
_is_closed = true;
}
}
Pipe::~Pipe()
{
Close();
}
int Pipe::Receive(char *data_, int length_)
{
if (_is_closed == true) {
return 0;
}
long r;
#ifdef _WIN32
ReadFile(_fdr, data_, length_, (DWORD *)&r, 0);
#else
r = read(_pipe[0], data_, length_);
#endif
return r;
}
int Pipe::Send(const char *data_, int length_)
{
long r;
#ifdef _WIN32
WriteFile(_fdw, data_, length_, (DWORD *)&r, 0);
#else
r = write(_pipe[1], data_, length_);
#endif
return r;
}
bool Pipe::IsClosed()
{
return _is_closed;
}
void Pipe::Close()
{
if (_is_closed == false) {
_is_closed = true;
#ifdef _WIN32
CloseHandle(_fdr);
CloseHandle(_fdw);
#else
close(_pipe[0]);
close(_pipe[1]);
#endif
}
}
}