CoreAudio/PublicUtility/CACFMessagePort.cpp
/* |
File: CACFMessagePort.cpp |
Abstract: CACFMessagePort.h |
Version: 1.1 |
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*/ |
//============================================================================= |
// Includes |
//============================================================================= |
#include "CACFMessagePort.h" |
#include "CADebugMacros.h" |
#include "CAException.h" |
//============================================================================= |
// CACFLocalMessagePort |
//============================================================================= |
CACFLocalMessagePort::CACFLocalMessagePort(CFStringRef inName, CFMessagePortCallBack inPortCallBack, CFMessagePortInvalidationCallBack inInvalidationCallBack, void* inUserData) |
: |
mMessagePort(NULL), |
mRunLoopSource(NULL), |
mDispatchQueue(NULL) |
{ |
// create the CFMessagePort |
CFMessagePortContext theContext = { 0, inUserData, NULL, NULL, NULL }; |
mMessagePort = CFMessagePortCreateLocal(NULL, inName, inPortCallBack, &theContext, NULL); |
if(mMessagePort != NULL) |
{ |
// add the invalidation callback, if any |
if(inInvalidationCallBack != NULL) |
{ |
CFMessagePortSetInvalidationCallBack(mMessagePort, inInvalidationCallBack); |
} |
} |
} |
CACFLocalMessagePort::~CACFLocalMessagePort() |
{ |
if(mRunLoopSource != NULL) |
{ |
CFRelease(mRunLoopSource); |
} |
if(mMessagePort != NULL) |
{ |
CFMessagePortInvalidate(mMessagePort); |
CFRelease(mMessagePort); |
} |
} |
CFRunLoopSourceRef CACFLocalMessagePort::GetRunLoopSource() const |
{ |
Assert(mDispatchQueue == NULL, "CACFLocalMessagePort::SetDispatchQueue: should have both a run loop source and a dispatch queue"); |
if(mRunLoopSource == NULL) |
{ |
const_cast<CACFLocalMessagePort*>(this)->mRunLoopSource = CFMessagePortCreateRunLoopSource(NULL, mMessagePort, 0); |
} |
return mRunLoopSource; |
} |
void CACFLocalMessagePort::SetDispatchQueue(dispatch_queue_t inDispatchQueue) |
{ |
Assert(mRunLoopSource == NULL, "CACFLocalMessagePort::SetDispatchQueue: should have both a run loop source and a dispatch queue"); |
mDispatchQueue = inDispatchQueue; |
CFMessagePortSetDispatchQueue(mMessagePort, mDispatchQueue); |
} |
//============================================================================= |
// CACFRemoteMessagePort |
//============================================================================= |
CACFRemoteMessagePort::CACFRemoteMessagePort(CFStringRef inName, CFMessagePortInvalidationCallBack inInvalidationCallBack) |
: |
mMessagePort(NULL), |
mRunLoopSource(NULL), |
mDispatchQueue(NULL) |
{ |
// create the CFMessagePort |
mMessagePort = CFMessagePortCreateRemote(NULL, inName); |
if(mMessagePort != NULL) |
{ |
// failure to create a remote port does not need to throw an exception |
// because it isn't really an error since the port in question may not |
// exist and this fact requires a more complex response than an excpeption |
// provides for. |
// add the invalidation callback, if any |
if(inInvalidationCallBack != NULL) |
{ |
CFMessagePortSetInvalidationCallBack(mMessagePort, inInvalidationCallBack); |
} |
} |
} |
CACFRemoteMessagePort::~CACFRemoteMessagePort() |
{ |
if(mRunLoopSource != NULL) |
{ |
CFRelease(mRunLoopSource); |
} |
if(mMessagePort != NULL) |
{ |
//CFMessagePortInvalidate(mMessagePort); |
CFRelease(mMessagePort); |
} |
} |
CFRunLoopSourceRef CACFRemoteMessagePort::GetRunLoopSource() const |
{ |
Assert(mDispatchQueue == NULL, "CACFRemoteMessagePort::SetDispatchQueue: should have both a run loop source and a dispatch queue"); |
if(mRunLoopSource == NULL) |
{ |
const_cast<CACFRemoteMessagePort*>(this)->mRunLoopSource = CFMessagePortCreateRunLoopSource(NULL, mMessagePort, 0); |
} |
return mRunLoopSource; |
} |
void CACFRemoteMessagePort::SetDispatchQueue(dispatch_queue_t inDispatchQueue) |
{ |
Assert(mRunLoopSource == NULL, "CACFRemoteMessagePort::SetDispatchQueue: should have both a run loop source and a dispatch queue"); |
mDispatchQueue = inDispatchQueue; |
CFMessagePortSetDispatchQueue(mMessagePort, mDispatchQueue); |
} |
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