1 /*
2 File: CACFMessagePort.cpp
3 Abstract: CACFMessagePort.h
4 Version: 1.1
5
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44 Copyright (C) 2014 Apple Inc. All Rights Reserved.
45
46 */
47 //=============================================================================
48 // Includes
49 //=============================================================================
50
51 #include "CACFMessagePort.h"
52 #include "CADebugMacros.h"
53 #include "CAException.h"
54
55 //=============================================================================
56 // CACFLocalMessagePort
57 //=============================================================================
58
CACFLocalMessagePort(CFStringRef inName,CFMessagePortCallBack inPortCallBack,CFMessagePortInvalidationCallBack inInvalidationCallBack,void * inUserData)59 CACFLocalMessagePort::CACFLocalMessagePort(CFStringRef inName, CFMessagePortCallBack inPortCallBack, CFMessagePortInvalidationCallBack inInvalidationCallBack, void* inUserData)
60 :
61 mMessagePort(NULL),
62 mRunLoopSource(NULL),
63 mDispatchQueue(NULL)
64 {
65 // create the CFMessagePort
66 CFMessagePortContext theContext = { 0, inUserData, NULL, NULL, NULL };
67 mMessagePort = CFMessagePortCreateLocal(NULL, inName, inPortCallBack, &theContext, NULL);
68 if(mMessagePort != NULL)
69 {
70 // add the invalidation callback, if any
71 if(inInvalidationCallBack != NULL)
72 {
73 CFMessagePortSetInvalidationCallBack(mMessagePort, inInvalidationCallBack);
74 }
75 }
76 }
77
~CACFLocalMessagePort()78 CACFLocalMessagePort::~CACFLocalMessagePort()
79 {
80 if(mRunLoopSource != NULL)
81 {
82 CFRelease(mRunLoopSource);
83 }
84 if(mMessagePort != NULL)
85 {
86 CFMessagePortInvalidate(mMessagePort);
87 CFRelease(mMessagePort);
88 }
89 }
90
GetRunLoopSource() const91 CFRunLoopSourceRef CACFLocalMessagePort::GetRunLoopSource() const
92 {
93 Assert(mDispatchQueue == NULL, "CACFLocalMessagePort::SetDispatchQueue: should have both a run loop source and a dispatch queue");
94 if(mRunLoopSource == NULL)
95 {
96 const_cast<CACFLocalMessagePort*>(this)->mRunLoopSource = CFMessagePortCreateRunLoopSource(NULL, mMessagePort, 0);
97 }
98 return mRunLoopSource;
99 }
100
SetDispatchQueue(dispatch_queue_t inDispatchQueue)101 void CACFLocalMessagePort::SetDispatchQueue(dispatch_queue_t inDispatchQueue)
102 {
103 Assert(mRunLoopSource == NULL, "CACFLocalMessagePort::SetDispatchQueue: should have both a run loop source and a dispatch queue");
104 mDispatchQueue = inDispatchQueue;
105 CFMessagePortSetDispatchQueue(mMessagePort, mDispatchQueue);
106 }
107
108 //=============================================================================
109 // CACFRemoteMessagePort
110 //=============================================================================
111
CACFRemoteMessagePort(CFStringRef inName,CFMessagePortInvalidationCallBack inInvalidationCallBack)112 CACFRemoteMessagePort::CACFRemoteMessagePort(CFStringRef inName, CFMessagePortInvalidationCallBack inInvalidationCallBack)
113 :
114 mMessagePort(NULL),
115 mRunLoopSource(NULL),
116 mDispatchQueue(NULL)
117 {
118 // create the CFMessagePort
119 mMessagePort = CFMessagePortCreateRemote(NULL, inName);
120 if(mMessagePort != NULL)
121 {
122 // failure to create a remote port does not need to throw an exception
123 // because it isn't really an error since the port in question may not
124 // exist and this fact requires a more complex response than an excpeption
125 // provides for.
126
127 // add the invalidation callback, if any
128 if(inInvalidationCallBack != NULL)
129 {
130 CFMessagePortSetInvalidationCallBack(mMessagePort, inInvalidationCallBack);
131 }
132 }
133 }
134
~CACFRemoteMessagePort()135 CACFRemoteMessagePort::~CACFRemoteMessagePort()
136 {
137 if(mRunLoopSource != NULL)
138 {
139 CFRelease(mRunLoopSource);
140 }
141 if(mMessagePort != NULL)
142 {
143 //CFMessagePortInvalidate(mMessagePort);
144 CFRelease(mMessagePort);
145 }
146 }
147
GetRunLoopSource() const148 CFRunLoopSourceRef CACFRemoteMessagePort::GetRunLoopSource() const
149 {
150 Assert(mDispatchQueue == NULL, "CACFRemoteMessagePort::SetDispatchQueue: should have both a run loop source and a dispatch queue");
151 if(mRunLoopSource == NULL)
152 {
153 const_cast<CACFRemoteMessagePort*>(this)->mRunLoopSource = CFMessagePortCreateRunLoopSource(NULL, mMessagePort, 0);
154 }
155 return mRunLoopSource;
156 }
157
SetDispatchQueue(dispatch_queue_t inDispatchQueue)158 void CACFRemoteMessagePort::SetDispatchQueue(dispatch_queue_t inDispatchQueue)
159 {
160 Assert(mRunLoopSource == NULL, "CACFRemoteMessagePort::SetDispatchQueue: should have both a run loop source and a dispatch queue");
161 mDispatchQueue = inDispatchQueue;
162 CFMessagePortSetDispatchQueue(mMessagePort, mDispatchQueue);
163 }
164