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src/server/spserver/spiocpevent.cpp
0 → 100644
1 | +/* | |
2 | + * Copyright 2008 Stephen Liu | |
3 | + * For license terms, see the file COPYING along with this library. | |
4 | + */ | |
5 | + | |
6 | +#include <stdlib.h> | |
7 | + | |
8 | +#include "spiocpevent.hpp" | |
9 | +#include "sputils.hpp" | |
10 | +#include "spsession.hpp" | |
11 | + | |
12 | +SP_IocpEventHeap :: SP_IocpEventHeap() | |
13 | +{ | |
14 | + mEntries = NULL; | |
15 | + mMaxCount = mCount = 0; | |
16 | +} | |
17 | + | |
18 | +SP_IocpEventHeap :: ~SP_IocpEventHeap() | |
19 | +{ | |
20 | + if( NULL != mEntries ) free( mEntries ); | |
21 | + mEntries = NULL; | |
22 | + mMaxCount = mCount = 0; | |
23 | +} | |
24 | + | |
25 | +int SP_IocpEventHeap :: getCount() | |
26 | +{ | |
27 | + return mCount; | |
28 | +} | |
29 | + | |
30 | +int SP_IocpEventHeap :: push( SP_IocpEvent_t * item ) | |
31 | +{ | |
32 | + if( 0 != reserve( mCount + 1 ) ) return -1; | |
33 | + | |
34 | + shiftUp( mCount++, item ); | |
35 | + | |
36 | + return 0; | |
37 | +} | |
38 | + | |
39 | +SP_IocpEvent_t * SP_IocpEventHeap :: top() | |
40 | +{ | |
41 | + return mCount ? mEntries[ 0 ] : NULL; | |
42 | +} | |
43 | + | |
44 | +SP_IocpEvent_t * SP_IocpEventHeap :: pop() | |
45 | +{ | |
46 | + if( mCount ) { | |
47 | + SP_IocpEvent_t * ret = mEntries[ 0 ]; | |
48 | + shiftDown( 0, mEntries[ --mCount ] ); | |
49 | + ret->mHeapIndex = -1; | |
50 | + | |
51 | + return ret; | |
52 | + } | |
53 | + | |
54 | + return NULL; | |
55 | +} | |
56 | + | |
57 | +int SP_IocpEventHeap :: erase( SP_IocpEvent_t * item ) | |
58 | +{ | |
59 | + if( -1 != item->mHeapIndex ) { | |
60 | + shiftDown( item->mHeapIndex, mEntries[ -- mCount ] ); | |
61 | + item->mHeapIndex = -1; | |
62 | + | |
63 | + return 0; | |
64 | + } | |
65 | + | |
66 | + return -1; | |
67 | +} | |
68 | + | |
69 | +int SP_IocpEventHeap :: reserve( int count ) | |
70 | +{ | |
71 | + if( mMaxCount < count ) { | |
72 | + int maxCount = mMaxCount ? mMaxCount * 2 : 8; | |
73 | + if( maxCount < count ) maxCount = count; | |
74 | + | |
75 | + SP_IocpEvent_t ** p = (SP_IocpEvent_t**)realloc( mEntries, maxCount * sizeof( SP_IocpEvent_t ) ); | |
76 | + if( NULL == p ) return -1; | |
77 | + | |
78 | + mEntries = p; | |
79 | + mMaxCount = maxCount; | |
80 | + } | |
81 | + | |
82 | + return 0; | |
83 | + | |
84 | +} | |
85 | + | |
86 | +int SP_IocpEventHeap :: isGreater( SP_IocpEvent_t * item1, SP_IocpEvent_t * item2 ) | |
87 | +{ | |
88 | + if( item1->mTimeout.tv_sec == item2->mTimeout.tv_sec ) { | |
89 | + return item1->mTimeout.tv_usec > item2->mTimeout.tv_usec; | |
90 | + } else { | |
91 | + return item1->mTimeout.tv_sec > item2->mTimeout.tv_sec; | |
92 | + } | |
93 | +} | |
94 | + | |
95 | +void SP_IocpEventHeap :: shiftUp( int index, SP_IocpEvent_t * item ) | |
96 | +{ | |
97 | + int parent = ( index - 1 ) / 2; | |
98 | + | |
99 | + for( ; index && isGreater( mEntries[ parent ], item ); ) { | |
100 | + mEntries[ index ] = mEntries[ parent ]; | |
101 | + mEntries[ index ]->mHeapIndex = index; | |
102 | + index = parent; | |
103 | + parent = ( index - 1 ) / 2; | |
104 | + } | |
105 | + mEntries[ index ] = item; | |
106 | + item->mHeapIndex = index; | |
107 | +} | |
108 | + | |
109 | +void SP_IocpEventHeap :: shiftDown( int index, SP_IocpEvent_t * item ) | |
110 | +{ | |
111 | + int minChild = 2 * ( index + 1 ); | |
112 | + for( ; minChild <= mCount; ) { | |
113 | + minChild -= ( minChild == mCount || isGreater( mEntries[ minChild ], mEntries[ minChild - 1 ] ) ); | |
114 | + if( ! isGreater( item, mEntries[ minChild ] ) ) break; | |
115 | + | |
116 | + mEntries[ index ] = mEntries[ minChild ]; | |
117 | + mEntries[ index ]->mHeapIndex = index; | |
118 | + index = minChild; | |
119 | + minChild = 2 * ( index + 1 ); | |
120 | + } | |
121 | + shiftUp( index, item ); | |
122 | +} | |
123 | + | |
124 | +//=================================================================== | |
125 | + | |
126 | +SP_IocpMsgQueue :: SP_IocpMsgQueue( HANDLE completionPort, | |
127 | + DWORD completionKey, QueueFunc_t func, void * arg ) | |
128 | +{ | |
129 | + mCompletionPort = completionPort; | |
130 | + mCompletionKey = completionKey; | |
131 | + mFunc = func; | |
132 | + mArg = arg; | |
133 | + | |
134 | + mMutex = CreateMutex( NULL, FALSE, NULL ); | |
135 | + mQueue = new SP_CircleQueue(); | |
136 | +} | |
137 | + | |
138 | +SP_IocpMsgQueue :: ~SP_IocpMsgQueue() | |
139 | +{ | |
140 | + CloseHandle( mMutex ); | |
141 | + delete mQueue; | |
142 | + mQueue = NULL; | |
143 | +} | |
144 | + | |
145 | +int SP_IocpMsgQueue :: push( void * queueData ) | |
146 | +{ | |
147 | + WaitForSingleObject( mMutex, INFINITE ); | |
148 | + | |
149 | + mQueue->push( queueData ); | |
150 | + if( 1 == mQueue->getLength() ) { | |
151 | + PostQueuedCompletionStatus( mCompletionPort, 0, mCompletionKey, (OVERLAPPED*)this ); | |
152 | + } | |
153 | + | |
154 | + ReleaseMutex( mMutex ); | |
155 | + | |
156 | + return 0; | |
157 | +} | |
158 | + | |
159 | +int SP_IocpMsgQueue :: process() | |
160 | +{ | |
161 | + WaitForSingleObject( mMutex, INFINITE ); | |
162 | + | |
163 | + for( ; mQueue->getLength() > 0; ) { | |
164 | + void * queueData = mQueue->pop(); | |
165 | + | |
166 | + ReleaseMutex( mMutex ); | |
167 | + | |
168 | + mFunc( queueData, mArg ); | |
169 | + | |
170 | + WaitForSingleObject( mMutex, INFINITE ); | |
171 | + } | |
172 | + | |
173 | + ReleaseMutex( mMutex ); | |
174 | + | |
175 | + return 0; | |
176 | +} | |
177 | + | |
178 | +//=================================================================== | |
179 | + | |
180 | +SP_IocpEventArg :: SP_IocpEventArg( int timeout ) | |
181 | +{ | |
182 | + mInputResultQueue = new SP_BlockingQueue(); | |
183 | + mOutputResultQueue = new SP_BlockingQueue(); | |
184 | + | |
185 | + mResponseQueue = NULL; | |
186 | + | |
187 | + mSessionManager = new SP_SessionManager(); | |
188 | + | |
189 | + mEventHeap = new SP_IocpEventHeap(); | |
190 | + | |
191 | + mTimeout = timeout; | |
192 | + | |
193 | + mCompletionPort = CreateIoCompletionPort( INVALID_HANDLE_VALUE, NULL, 0, 0 ); | |
194 | + if( NULL == mCompletionPort ) { | |
195 | + sp_syslog( LOG_ERR, "CreateIoCompletionPort failed, errno %d", WSAGetLastError() ); | |
196 | + } | |
197 | + | |
198 | + mDisconnectExFunc = NULL; | |
199 | +} | |
200 | + | |
201 | +SP_IocpEventArg :: ~SP_IocpEventArg() | |
202 | +{ | |
203 | + if( NULL != mInputResultQueue ) delete mInputResultQueue; | |
204 | + mInputResultQueue = NULL; | |
205 | + | |
206 | + if( NULL != mOutputResultQueue ) delete mOutputResultQueue; | |
207 | + mOutputResultQueue = NULL; | |
208 | + | |
209 | + if( NULL != mEventHeap ) delete mEventHeap; | |
210 | + mEventHeap = NULL; | |
211 | + | |
212 | + if( NULL != mResponseQueue ) delete mResponseQueue; | |
213 | + mResponseQueue = NULL; | |
214 | + | |
215 | + if( NULL != mSessionManager ) delete mSessionManager; | |
216 | + mSessionManager = NULL; | |
217 | +} | |
218 | + | |
219 | +HANDLE SP_IocpEventArg :: getCompletionPort() | |
220 | +{ | |
221 | + return mCompletionPort; | |
222 | +} | |
223 | + | |
224 | +SP_BlockingQueue * SP_IocpEventArg :: getInputResultQueue() | |
225 | +{ | |
226 | + return mInputResultQueue; | |
227 | +} | |
228 | + | |
229 | +SP_BlockingQueue * SP_IocpEventArg :: getOutputResultQueue() | |
230 | +{ | |
231 | + return mOutputResultQueue; | |
232 | +} | |
233 | + | |
234 | +void SP_IocpEventArg :: setResponseQueue( SP_IocpMsgQueue * responseQueue ) | |
235 | +{ | |
236 | + mResponseQueue = responseQueue; | |
237 | +} | |
238 | + | |
239 | +SP_IocpMsgQueue * SP_IocpEventArg :: getResponseQueue() | |
240 | +{ | |
241 | + return mResponseQueue; | |
242 | +} | |
243 | + | |
244 | +SP_SessionManager * SP_IocpEventArg :: getSessionManager() | |
245 | +{ | |
246 | + return mSessionManager; | |
247 | +} | |
248 | + | |
249 | +SP_IocpEventHeap * SP_IocpEventArg :: getEventHeap() | |
250 | +{ | |
251 | + return mEventHeap; | |
252 | +} | |
253 | + | |
254 | +void SP_IocpEventArg :: setTimeout( int timeout ) | |
255 | +{ | |
256 | + mTimeout = timeout; | |
257 | +} | |
258 | + | |
259 | +int SP_IocpEventArg :: getTimeout() | |
260 | +{ | |
261 | + return mTimeout; | |
262 | +} | |
263 | + | |
264 | +int SP_IocpEventArg :: loadDisconnectEx( SOCKET fd ) | |
265 | +{ | |
266 | + LPFN_DISCONNECTEX fnDisConnectEx = NULL; | |
267 | + GUID guidDisConnectEx = WSAID_DISCONNECTEX; | |
268 | + DWORD dwByte; | |
269 | + ::WSAIoctl( fd, SIO_GET_EXTENSION_FUNCTION_POINTER, | |
270 | + &guidDisConnectEx, sizeof(guidDisConnectEx), | |
271 | + &fnDisConnectEx, sizeof(fnDisConnectEx), | |
272 | + &dwByte, NULL, NULL); | |
273 | + | |
274 | + mDisconnectExFunc = fnDisConnectEx; | |
275 | + | |
276 | + return NULL != mDisconnectExFunc ? 0 : -1; | |
277 | +} | |
278 | + | |
279 | +BOOL SP_IocpEventArg :: disconnectEx( SOCKET fd, LPOVERLAPPED lpOverlapped, | |
280 | + DWORD dwFlags, DWORD reserved ) | |
281 | +{ | |
282 | + LPFN_DISCONNECTEX fnDisConnectEx = (LPFN_DISCONNECTEX)mDisconnectExFunc; | |
283 | + if( NULL != fnDisConnectEx ) { | |
284 | + return fnDisConnectEx( fd, lpOverlapped, dwFlags, reserved ); | |
285 | + } | |
286 | + | |
287 | + return FALSE; | |
288 | +} | ... | ... |
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