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OCL
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OMuxSem.cpp
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1996-08-12
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// OCL - OS/2 Class Library
// (c) Cubus 1995
// All Rights Reserved
// OMuxSem.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/OMuxSem.cpp 1.50 1996/08/11 23:49:24 B.STEIN Release $
#define __OCL_SOURCE__
#define OINCL_OSTRING
#define OINCL_BASE
#include <ocl.hpp>
#include <OMuxSem.hpp>
#include <OMessage.hpp>
OMuxSem::OMuxSem(HMTX handle) throw (OVioException&)
: hmtx(handle),
muxState(0)
{
if (!openMuxSem(handle))
throw OVioException(OCL::apierror(110, muxState), muxState);
}
OMuxSem::OMuxSem(PCSZ name, ULONG action, BOOL shared) throw (OVioException&)
{
APIRET rc = 0;
switch(action)
{
case OMuxSem::create: {
ULONG shareFlag = 0;
if ((!name) && (shared))
shareFlag = DC_SEM_SHARED;
if((rc = DosCreateMutexSem(name, &hmtx, shareFlag, FALSE))!=0)
throw OVioException(OCL::apierror(111, rc), rc);
break; }
case OMuxSem::open:
if (!openMuxSem(name))
throw OVioException(OCL::apierror(112, rc), rc);
break;
}
}
OMuxSem::~OMuxSem()
{
if (hmtx)
closeMuxSem();
}
PSZ OMuxSem::isOfType() const
{
return("OMuxSem");
}
BOOL OMuxSem::openMuxSem(HMTX handle)
{
hmtx = handle;
muxState = DosOpenMutexSem((PSZ)NULL, &hmtx);
return(muxState == 0);
}
BOOL OMuxSem::openMuxSem(PCSZ name)
{
muxName << (PSZ) name;
muxState = DosOpenMutexSem(muxName, &hmtx);
return(muxState == 0);
}
BOOL OMuxSem::closeMuxSem()
{
muxState = DosCloseMutexSem(hmtx);
hmtx = (HMUX)NULL;
return(muxState == 0);
}
BOOL OMuxSem::requestMuxSem(ULONG timeOut)
{
muxState = DosRequestMutexSem(hmtx, timeOut);
return(muxState == 0);
}
BOOL OMuxSem::releaseMuxSem()
{
muxState = DosReleaseMutexSem(hmtx);
return(muxState == 0);
}
void OMuxSem::setMuxSemHandle(HMTX handle)
{
hmtx = handle;
}
HMTX OMuxSem::getMuxSemHandle()
{
return(hmtx);
}
// end of source