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OPipeCli.cpp
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1996-08-12
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// OCL - OS/2 Class Library
// (c) Cubus 1995
// All Rights Reserved
// OPipeCli.cpp
/*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Neither the name Cubus nor the name Team OCL may be used to
* endorse or promote products derived from this software
* without specific prior written permission.
* 3. See OCL.INF for a detailed copyright notice.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
// $Header: W:/Projects/OCL/Source/rcs/OPipeCli.cpp 1.50 1996/08/11 23:49:27 B.STEIN Release $
#define __OCL_SOURCE__
#define OINCL_OSTRING
#define OINCL_BASE
#include <ocl.hpp>
#include <OPipeCli.hpp>
#if defined(__EMX__)
template class OThread<OPipeCli>;
#endif
// members of OPipeCli
OPipeCli::OPipeCli(const ULONG Size,
const ULONG openMode,
const ULONG pipeMode,
const ULONG timeout,
const BOOL waitFor)
: pipeThread(this, &OPipeCli::Pipe_IO)
{
oMode = openMode;
pMode = pipeMode;
timeOut = timeout;
BufSize = Size;
waitForInstance = waitFor;
connected = FALSE;
Pipe = (HPIPE)NULL;
}
OPipeCli::~OPipeCli()
{
if (connected) disconnectPipe();
}
PSZ OPipeCli::isOfType() const
{
return("OPipeCli");
}
BOOL OPipeCli::beginPiping(PCSZ pipeName)
{
return(connectPipe(pipeName));
}
BOOL OPipeCli::stopPiping()
{
return(disconnectPipe());
}
void OPipeCli::setSize(const ULONG Size)
{
BufSize = Size;
}
BOOL OPipeCli::connectPipe(PCSZ pipeName)
{
ULONG Action;
APIRET rc;
if ((!oMode) || (connected) || (!Buffer) || (!BufSize))
return(FALSE);
while(!close)
{
rc = DosOpen((PSZ)pipeName, (PHFILE)&Pipe, &Action, 0L, 0L,
OPEN_ACTION_OPEN_IF_EXISTS, oMode, NULL);
switch(rc)
{
case NO_ERROR:
connected = TRUE;
return(pipeThread.run());
case ERROR_PIPE_BUSY:
if (!waitForInstance)
return(FALSE);
DosWaitNPipe((PSZ)pipeName, 0);
break;
}
}
return(FALSE);
}
BOOL OPipeCli::disconnectPipe()
{
close = TRUE;
DosClose(Pipe);
connected = FALSE;
if (pipeThread.isRunning())
pipeThread.stop();
return(TRUE);
}
BOOL OPipeCli::postPipe(PVOID pvData, ULONG client)
{
ULONG written = 0;
return((connected) &&
(!DosWrite(Pipe, pvData, BufSize, &written)) &&
(written != 0));
#ifdef __BCPLUSPLUS__
#pragma warn -par
#endif
}
#ifdef __BCPLUSPLUS__
#pragma warn .par
#endif
void OPipeCli::Pipe_IO()
{
ULONG read = 0;
while (!close)
{
if (!DosRead(Pipe, Buffer, BufSize, &read) && read > 0)
OPipeCommand(Buffer);
else
DosSleep(100);
}
connected = FALSE;
_endthread();
}
// end of source