kresolver_p.h
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00024 #ifndef KRESOLVER_P_H
00025 #define KRESOLVER_P_H
00026
00027 #include <config.h>
00028
00029 #include <qstring.h>
00030 #include <qcstring.h>
00031 #include <qvaluelist.h>
00032 #include <qptrlist.h>
00033 #include <qptrqueue.h>
00034 #include <qthread.h>
00035 #include <qmutex.h>
00036 #include <qwaitcondition.h>
00037 #include <qsemaphore.h>
00038 #include <qevent.h>
00039
00040 #include "kdemacros.h"
00041 #include "kresolver.h"
00042
00043
00044 #if !defined(HAVE_GETPROTOBYNAME_R) || !defined(HAVE_GETSERVBYNAME_R) || !defined(HAVE_GETHOSTBYNAME_R) || !defined(HAVE_GETSERVBYPORT_R)
00045 # define NEED_MUTEX
00046 extern QMutex getXXbyYYmutex;
00047 #endif
00048
00049
00050 #if defined(HAVE_GETSERVBYNAME_R) && !HAVE_DECL_GETSERVBYNAME_R
00051 extern "C" {
00052 struct servent;
00053 extern int getservbyname_r(const char* serv, const char* proto,
00054 struct servent* servbuf,
00055 char* buf, size_t buflen,
00056 struct servent** result);
00057 extern int getservbyport_r(int port, const char* proto,
00058 struct servent* servbuf,
00059 char* buf, size_t buflen,
00060 struct servent** result);
00061
00062 struct protoent;
00063 extern int getprotobyname_r(const char* proto, struct protoent* protobuf,
00064 char *buf, size_t buflen,
00065 struct protoent** result);
00066 extern int getprotobynumber_r(int proto, struct protoent* protobuf,
00067 char *buf, size_t buflen,
00068 struct protoent** result);
00069 }
00070 #endif
00071
00072
00073
00074 #define SHARED_LIBRESOLV
00075 #if defined(__GLIBC__)
00076 # undef SHARED_LIBRESOLV
00077 #endif
00078
00079 namespace KNetwork
00080 {
00081
00082
00083 class KResolverWorkerBase;
00084 class KResolverWorkerFactoryBase;
00085
00086 class KResolverPrivate
00087 {
00088 public:
00089
00090 KResolver* parent;
00091 bool deleteWhenDone : 1;
00092 bool waiting : 1;
00093
00094
00095 volatile int status;
00096 volatile int errorcode, syserror;
00097
00098
00099 struct InputData
00100 {
00101 QString node, service;
00102 QCString protocolName;
00103 int flags;
00104 int familyMask;
00105 int socktype;
00106 int protocol;
00107 } input;
00108
00109
00110 QMutex mutex;
00111
00112
00113 KResolverResults results;
00114
00115 KResolverPrivate(KResolver* _parent,
00116 const QString& _node = QString::null,
00117 const QString& _service = QString::null)
00118 : parent(_parent), deleteWhenDone(false), waiting(false),
00119 status(0), errorcode(0), syserror(0)
00120 {
00121 input.node = _node;
00122 input.service = _service;
00123 input.flags = 0;
00124 input.familyMask = KResolver::AnyFamily;
00125 input.socktype = 0;
00126 input.protocol = 0;
00127
00128 results.setAddress(_node, _service);
00129 }
00130 };
00131
00132 namespace Internal
00133 {
00134 class KResolverManager;
00135 class KResolverThread;
00136
00137 struct RequestData
00138 {
00139
00140 KNetwork::KResolverPrivate *obj;
00141 const KNetwork::KResolverPrivate::InputData *input;
00142 KNetwork::KResolverWorkerBase *worker;
00143 RequestData *requestor;
00144
00145 volatile int nRequests;
00146 };
00147
00148
00149
00150
00151
00152 class KResolverManager
00153 {
00154 public:
00155 enum EventTypes
00156 { ResolutionCompleted = 1576 };
00157
00158
00159
00160
00161
00162
00163
00164 QWaitCondition notifyWaiters;
00165
00166 private:
00167
00168
00169
00170 volatile unsigned short runningThreads;
00171
00172
00173
00174
00175
00176 unsigned short availableThreads;
00177
00178
00179
00180
00181
00182
00183 QWaitCondition feedWorkers;
00184
00185
00186 QMutex mutex;
00187
00188
00189 QPtrList<KResolverThread> workers;
00190
00191
00192 QPtrList<RequestData> newRequests;
00193
00194
00195 QPtrList<RequestData> currentRequests;
00196
00197
00198 QPtrList<KNetwork::KResolverWorkerFactoryBase> workerFactories;
00199
00200
00201 KResolverManager();
00202
00203 public:
00204 static KResolverManager* manager() KDE_NO_EXPORT;
00205
00206
00207 ~KResolverManager();
00208
00209
00210
00211
00212 void registerThread(KResolverThread* id);
00213
00214
00215
00216
00217 void unregisterThread(KResolverThread* id);
00218
00219
00220
00221
00222
00223
00224
00225
00226
00227
00228 RequestData* requestData(KResolverThread* id, int maxWaitTime);
00229
00230
00231
00232
00233
00234
00235
00236 void releaseData(KResolverThread *id, RequestData* data);
00237
00238
00239
00240
00241
00242
00243 void registerNewWorker(KNetwork::KResolverWorkerFactoryBase *factory);
00244
00245
00246
00247
00248 void enqueue(KNetwork::KResolver *obj, RequestData* requestor);
00249
00250
00251
00252
00253 void dispatch(RequestData* data);
00254
00255
00256
00257
00258 void dequeue(KNetwork::KResolver *obj);
00259
00260
00261
00262
00263
00264
00265 void aboutToBeDeleted(KNetwork::KResolver *obj);
00266
00267
00268
00269
00270 void newEvent();
00271
00272
00273
00274
00275
00276
00277 void receiveEvent();
00278
00279 private:
00280
00281
00282
00283 KNetwork::KResolverWorkerBase *findWorker(KNetwork::KResolverPrivate *p);
00284
00285
00286
00287
00288 RequestData* findData(KResolverThread*);
00289
00290
00291
00292
00293
00294
00295 void handleFinished();
00296
00297
00298
00299
00300
00301
00302 bool handleFinishedItem(RequestData* item);
00303
00304
00305
00306
00307
00308
00309 void doNotifying(RequestData *p);
00310
00311
00312
00313
00314
00315
00316 bool dequeueNew(KNetwork::KResolver* obj);
00317 };
00318
00319
00320
00321
00322
00323
00324 class KResolverThread: public QThread
00325 {
00326 public:
00327
00328 KResolverThread();
00329 RequestData* data;
00330
00331 protected:
00332 virtual void run();
00333
00334 friend class KNetwork::Internal::KResolverManager;
00335 friend class KNetwork::KResolverWorkerBase;
00336 };
00337
00338 }
00339
00340 }
00341
00342
00343 #endif
This file is part of the documentation for kdecore Library Version 3.3.2.