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cmMidiOsx.c: Check OSX references against 0 instead of NULL.

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Use _cmMpRtPtr to notice the first use of _cmMpRoot.
This commit is contained in:
kevin 2013-05-01 15:11:32 -07:00
parent 2ce96cdfd3
commit 48884c3389
1 changed files with 27 additions and 18 deletions
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45
osx/cmMidiOsx.c
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@ -7,6 +7,7 @@
#include "cmGlobal.h"
#include "cmRpt.h"
#include "cmErr.h"
#include "cmCtx.h"
#include "cmMem.h"
#include "cmMallocDebug.h"
#include "cmMidi.h"
@ -52,7 +53,8 @@ typedef struct
} cmMpRoot;
cmMpRoot _cmMpRoot = { {NULL,NULL,kOkMpRC}, 0, NULL, NULL, NULL, NULL, NULL, NULL };
cmMpRoot _cmMpRoot;
cmMpRoot* _cmMpRtPtr = NULL;
cmMpRC_t _cmMpError( cmErr_t* errPtr, cmMpRC_t rc, OSStatus err, const char* fmt, ... )
{
@ -186,7 +188,7 @@ char* _cmMpFormPortLabel( cmErr_t* errPtr, MIDIEntityRef mer, ItemCount pi, bool
else
epr = MIDIEntityGetDestination( mer, pi);
if(epr == NULL )
if(epr == 0 )
{
_cmMpError(errPtr,kSysErrMpRC,noErr,"Get %s endpoiint ref %i failed.", inputFl ? "source" : "destination",pi);
return NULL;
@ -212,7 +214,7 @@ cmMpRC_t _cmMpGetEntityUniqueIdArray( MIDIEntityRef mer, SInt32* idArray, unsign
{
epr = inputFl ? MIDIEntityGetSource( mer, pi) : MIDIEntityGetDestination( mer, pi);
if(epr == NULL )
if(epr == 0 )
{
rc = _cmMpError(errPtr,kSysErrMpRC,noErr,"Get %s endpoiint ref %i failed.",dirLabel,pi);
goto errLabel;
@ -254,7 +256,7 @@ cmMpRC_t _cmMpInitPortArray( unsigned devIdx, MIDIPortRef mpr, MIDIEntityRef mer
{
MIDIEndpointRef epr = inputFl ? MIDIEntityGetSource(mer,pi) : MIDIEntityGetDestination(mer,pi);
if( epr == NULL )
if( epr == 0 )
return _cmMpError(errPtr,kSysErrMpRC,noErr,"Get %s endpoiint ref %i failed.",inputFl ? "source" : "destination", pi);
// if this is an active input port then connect it to the source port
@ -304,7 +306,7 @@ cmMpRC_t _cmMpIsDeviceActive( unsigned devIdx, MIDIDeviceRef mdr, ItemCount* src
ItemCount activeCnt = 0;
MIDIEntityRef mer;
if((mer = MIDIDeviceGetEntity( mdr, ei)) == NULL )
if((mer = MIDIDeviceGetEntity( mdr, ei)) == 0 )
return _cmMpError( errPtr,kSysErrMpRC,noErr,"Get midi device %i entity %i failed.",devIdx,ei);
if((rc= _cmMpGetActiveEntityPortCount(mer,true,&srcCnt,&activeCnt,errPtr)) != kOkMpRC )
@ -343,7 +345,7 @@ cmMpRC_t _cmMpCreateDevice( unsigned devIdx, cmMpDev* drp, MIDIPortRef inPortRe
_cmMpDeviceInit(drp);
// get the device ref
if((mdr = MIDIGetDevice(devIdx)) == NULL )
if((mdr = MIDIGetDevice(devIdx)) == 0 )
return _cmMpError(errPtr,kSysErrMpRC,noErr,"Get midi device %i failed.",devIdx);
// determine if the device port count and whether it is active
@ -377,7 +379,7 @@ cmMpRC_t _cmMpCreateDevice( unsigned devIdx, cmMpDev* drp, MIDIPortRef inPortRe
unsigned i;
// get the entity reference
if((mer = MIDIDeviceGetEntity( mdr, ei)) == NULL )
if((mer = MIDIDeviceGetEntity( mdr, ei)) == 0 )
{
rc = _cmMpError(errPtr,kSysErrMpRC,noErr,"Get midi device %i entity %i failed.",devIdx,ei);
goto errLabel;
@ -531,13 +533,20 @@ cmMpPort* _cmMpGetPort( cmMpDev* drp, unsigned portIdx, unsigned flags )
return inputFl ? drp->iPortArray + portIdx : drp->oPortArray + portIdx;
}
cmMpRC_t cmMpInitialize( cmMpCallback_t cbFunc, void* cbDataPtr, unsigned parserBufByteCnt, const char* appNameStr, cmRpt_t* rpt )
cmMpRC_t cmMpInitialize( cmCtx_t* c, cmMpCallback_t cbFunc, void* cbDataPtr, unsigned parserBufByteCnt, const char* appNameStr )
{
cmMpRC_t rc = kOkMpRC;
OSStatus err = noErr;
CFStringRef clientNameStrRef = NULL;
CFStringRef inPortNameStrRef = NULL;
CFStringRef outPortNameStrRef = NULL;
cmRpt_t* rpt = &c->rpt;
if( _cmMpRtPtr == NULL )
{
memset(&_cmMpRoot,0,sizeof(_cmMpRoot));
_cmMpRtPtr = &_cmMpRoot;
}
if((rc = cmMpFinalize()) != kOkMpRC )
return rc;
@ -611,28 +620,28 @@ cmMpRC_t cmMpFinalize()
OSStatus err = noErr;
cmMpRC_t rc = kOkMpRC;
if( _cmMpRoot.inPortRef != NULL )
if( _cmMpRoot.inPortRef != 0 )
{
if((err = MIDIPortDispose(_cmMpRoot.inPortRef)) != noErr )
rc = _cmMpError(&_cmMpRoot.err,kSysErrMpRC,err,"MIDIPortDispose() failed on the input port.");
else
_cmMpRoot.inPortRef = NULL;
_cmMpRoot.inPortRef = 0;
}
if( _cmMpRoot.outPortRef != NULL )
if( _cmMpRoot.outPortRef != 0 )
{
if((err = MIDIPortDispose(_cmMpRoot.outPortRef)) != noErr )
rc = _cmMpError(&_cmMpRoot.err,kSysErrMpRC,err,"MIDIPortDispose() failed on the output port.");
else
_cmMpRoot.outPortRef = NULL;
_cmMpRoot.outPortRef = 0;
}
if( _cmMpRoot.clientRef != NULL )
if( _cmMpRoot.clientRef != 0 )
{
if((err = MIDIClientDispose(_cmMpRoot.clientRef)) != noErr )
rc = _cmMpError(&_cmMpRoot.err,kSysErrMpRC,err,"MIDIClientDispose() failed.");
else
_cmMpRoot.clientRef = NULL;
_cmMpRoot.clientRef = 0;
}
_cmMpDestroyDeviceArray(&_cmMpRoot);
@ -641,16 +650,16 @@ cmMpRC_t cmMpFinalize()
_cmMpRoot.devArray = NULL;
_cmMpRoot.cbFunc = NULL;
_cmMpRoot.cbDataPtr = NULL;
_cmMpRoot.clientRef = NULL;
_cmMpRoot.inPortRef = NULL;
_cmMpRoot.outPortRef = NULL;
_cmMpRoot.clientRef = 0;
_cmMpRoot.inPortRef = 0;
_cmMpRoot.outPortRef = 0;
return rc;
}
bool cmMpIsInitialized()
{ return _cmMpRoot.clientRef != NULL; }
{ return _cmMpRoot.clientRef != 0; }
unsigned cmMpDeviceCount()
{