2 /*******************************************************************************
4 Copyright (c) 2009, Charles McGarvey
7 Redistribution and use in source and binary forms, with or without
8 modification, are permitted provided that the following conditions are met:
10 * Redistributions of source code must retain the above copyright notice,
11 this list of conditions and the following disclaimer.
12 * Redistributions in binary form must reproduce the above copyright notice,
13 this list of conditions and the following disclaimer in the documentation
14 and/or other materials provided with the distribution.
16 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
20 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
22 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
23 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *******************************************************************************/
31 #include "Dispatch.hh"
44 Dispatch::Handler
getNewHandler()
47 //return Dispatch::Handler(this, mId);
48 Dispatch::Handler
handler(this, mId
);
52 typedef std::pair
<unsigned,Dispatch::Function
> Callback
;
53 typedef std::multimap
<std::string
,Callback
> CallbackLookup
;
54 typedef CallbackLookup::iterator CallbackIter
;
56 typedef std::multimap
<unsigned,std::string
> HandlerLookup
;
57 typedef HandlerLookup::iterator HandlerIter
;
60 inline Handler
addHandler(const std::string
& event
,
61 const Function
& callback
, Handler handler
)
63 mCallbacks
.insert(std::make_pair(event
,
64 std::make_pair(handler
.getId(), callback
)));
65 mHandlers
.insert(std::make_pair(handler
.getId(), event
));
70 inline void removeHandler(unsigned id
)
72 std::pair
<HandlerIter
,HandlerIter
> matching(mHandlers
.equal_range(id
));
74 for (HandlerIter it
= matching
.first
; it
!= matching
.second
; ++it
)
76 CallbackIter first
= mCallbacks
.find((*it
).second
);
77 CallbackIter last
= mCallbacks
.end();
79 for (CallbackIter jt
= first
; jt
!= last
; ++jt
)
81 if ((*jt
).second
.first
== id
)
92 void dispatch(const std::string
& event
, const Message
* message
)
94 std::pair
<CallbackIter
,CallbackIter
>
95 callbacks(mCallbacks
.equal_range(event
));
97 for (CallbackIter it
= callbacks
.first
; it
!= callbacks
.second
; ++it
)
99 Function callback
= (*it
).second
.second
;
107 CallbackLookup mCallbacks
;
108 HandlerLookup mHandlers
;
112 Dispatch::Handler::~Handler()
116 mDispatch
->removeHandler(mId
);
121 Dispatch::Dispatch() :
122 mImpl(new Dispatch::Impl
) {}
124 Dispatch::~Dispatch() {}
127 Dispatch
& Dispatch::getInstance()
129 static Dispatch dispatch
;
134 Dispatch::Handler
Dispatch::addHandler(const std::string
& event
,
135 const Function
& callback
)
137 return addHandler(event
, callback
, mImpl
->getNewHandler());
140 Dispatch::Handler
Dispatch::addHandler(const std::string
& event
,
141 const Function
& callback
, Handler handler
)
144 return mImpl
->addHandler(event
, callback
, handler
);
148 void Dispatch::removeHandler(unsigned id
)
151 return mImpl
->removeHandler(id
);
155 void Dispatch::dispatch(const std::string
& event
, const Message
* message
)
158 mImpl
->dispatch(event
, message
);
164 /** vim: set ts=4 sw=4 tw=80: *************************************************/