dnssd Library API Documentation

remoteservice.cpp

00001 /* This file is part of the KDE project 00002 * 00003 * Copyright (C) 2004 Jakub Stachowski <qbast@go2.pl> 00004 * 00005 * This library is free software; you can redistribute it and/or 00006 * modify it under the terms of the GNU Library General Public 00007 * License as published by the Free Software Foundation; either 00008 * version 2 of the License, or (at your option) any later version. 00009 * 00010 * This library is distributed in the hope that it will be useful, 00011 * but WITHOUT ANY WARRANTY; without even the implied warranty of 00012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00013 * Library General Public License for more details. 00014 * 00015 * You should have received a copy of the GNU Library General Public License 00016 * along with this library; see the file COPYING.LIB. If not, write to 00017 * the Free Software Foundation, Inc., 59 Temple Place - Suite 330, 00018 * Boston, MA 02111-1307, USA. 00019 */ 00020 00021 #include <config.h> 00022 00023 #include <qeventloop.h> 00024 #include <qapplication.h> 00025 #ifdef HAVE_SYS_TYPES_H 00026 #include <sys/types.h> 00027 #endif 00028 #include <netinet/in.h> 00029 #include "remoteservice.h" 00030 #include "responder.h" 00031 #include "sdevent.h" 00032 #include <kdebug.h> 00033 00034 namespace DNSSD 00035 { 00036 #ifdef HAVE_DNSSD 00037 void resolve_callback ( DNSServiceRef, 00038 DNSServiceFlags, 00039 uint32_t, 00040 DNSServiceErrorType errorCode, 00041 const char*, 00042 const char *hosttarget, 00043 uint16_t port, 00044 uint16_t txtLen, 00045 const char *txtRecord, 00046 void *context 00047 ); 00048 00049 #endif 00050 class RemoteServicePrivate : public Responder 00051 { 00052 public: 00053 RemoteServicePrivate() : Responder(), m_resolved(false) 00054 {}; 00055 bool m_resolved; 00056 }; 00057 00058 RemoteService::RemoteService(const QString& label) 00059 { 00060 decode(label); 00061 d = new RemoteServicePrivate(); 00062 } 00063 RemoteService::RemoteService(const QString& name,const QString& type,const QString& domain) 00064 : ServiceBase(name, type, domain) 00065 { 00066 d = new RemoteServicePrivate(); 00067 } 00068 00069 RemoteService::~RemoteService() 00070 { 00071 delete d; 00072 } 00073 00074 bool RemoteService::resolve() 00075 { 00076 resolveAsync(); 00077 while (d->isRunning() && !d->m_resolved) d->process(); 00078 d->stop(); 00079 return d->m_resolved; 00080 } 00081 00082 void RemoteService::resolveAsync() 00083 { 00084 if (d->isRunning()) return; 00085 d->m_resolved = false; 00086 kdDebug() << this << ":Starting resolve of : " << m_serviceName << " " << m_type << " " << m_domain << "\n"; 00087 #ifdef HAVE_DNSSD 00088 DNSServiceRef ref; 00089 if (DNSServiceResolve(&ref,0,0,m_serviceName.utf8(), m_type.ascii(), 00090 domainToDNS(m_domain),resolve_callback,reinterpret_cast<void*>(this)) 00091 == kDNSServiceErr_NoError) d->setRef(ref); 00092 #endif 00093 if (!d->isRunning()) emit resolved(false); 00094 } 00095 00096 bool RemoteService::isResolved() const 00097 { 00098 return d->m_resolved; 00099 } 00100 00101 void RemoteService::customEvent(QCustomEvent* event) 00102 { 00103 if (event->type() == QEvent::User+SD_ERROR) { 00104 d->stop(); 00105 d->m_resolved=false; 00106 emit resolved(false); 00107 } 00108 if (event->type() == QEvent::User+SD_RESOLVE) { 00109 ResolveEvent* rev = static_cast<ResolveEvent*>(event); 00110 m_hostName = rev->m_hostname; 00111 m_port = rev->m_port; 00112 m_textData = rev->m_txtdata; 00113 d->m_resolved = true; 00114 emit resolved(true); 00115 } 00116 } 00117 00118 void RemoteService::virtual_hook(int, void*) 00119 { 00120 // BASE::virtual_hook(int, void*); 00121 } 00122 00123 QDataStream & operator<< (QDataStream & s, const RemoteService & a) 00124 { 00125 s << (static_cast<ServiceBase>(a)); 00126 Q_INT8 resolved = a.d->m_resolved ? 1:0; 00127 s << resolved; 00128 return s; 00129 } 00130 00131 QDataStream & operator>> (QDataStream & s, RemoteService & a) 00132 { 00133 // stop any possible resolve going on 00134 a.d->stop(); 00135 Q_INT8 resolved; 00136 operator>>(s,(static_cast<ServiceBase&>(a))); 00137 s >> resolved; 00138 a.d->m_resolved = (resolved == 1); 00139 return s; 00140 } 00141 00142 00143 #ifdef HAVE_DNSSD 00144 void resolve_callback ( DNSServiceRef, 00145 DNSServiceFlags, 00146 uint32_t, 00147 DNSServiceErrorType errorCode, 00148 const char*, 00149 const char *hosttarget, 00150 uint16_t port, 00151 uint16_t txtLen, 00152 const char *txtRecord, 00153 void *context 00154 ) 00155 { 00156 QObject *obj = reinterpret_cast<QObject*>(context); 00157 if (errorCode != kDNSServiceErr_NoError) { 00158 ErrorEvent err; 00159 QApplication::sendEvent(obj, &err); 00160 return; 00161 } 00162 char key[256]; 00163 const char *value; 00164 int index=0; 00165 unsigned char valueLen; 00166 kdDebug() << "Resolve callback\n"; 00167 QMap<QString,QString> map; 00168 while (TXTRecordGetItemAtIndex(txtLen,txtRecord,index++,256,key,&valueLen, 00169 reinterpret_cast<const void **>(&value)) == kDNSServiceErr_NoError) 00170 if (value) map[QString::fromUtf8(key)]=QString::fromUtf8(value,valueLen); 00171 else map[QString::fromUtf8(key)]=QString::null; 00172 ResolveEvent rev(DNSToDomain(hosttarget),ntohs(port),map); 00173 QApplication::sendEvent(obj, &rev); 00174 } 00175 #endif 00176 00177 00178 } 00179 00180 #include "remoteservice.moc"
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This file is part of the documentation for dnssd Library Version 3.4.0.
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