1fcf3ce44SJohn Forte /* 2fcf3ce44SJohn Forte * CDDL HEADER START 3fcf3ce44SJohn Forte * 4fcf3ce44SJohn Forte * The contents of this file are subject to the terms of the 5fcf3ce44SJohn Forte * Common Development and Distribution License (the "License"). 6fcf3ce44SJohn Forte * You may not use this file except in compliance with the License. 7fcf3ce44SJohn Forte * 8fcf3ce44SJohn Forte * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9fcf3ce44SJohn Forte * or http://www.opensolaris.org/os/licensing. 10fcf3ce44SJohn Forte * See the License for the specific language governing permissions 11fcf3ce44SJohn Forte * and limitations under the License. 12fcf3ce44SJohn Forte * 13fcf3ce44SJohn Forte * When distributing Covered Code, include this CDDL HEADER in each 14fcf3ce44SJohn Forte * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15fcf3ce44SJohn Forte * If applicable, add the following below this CDDL HEADER, with the 16fcf3ce44SJohn Forte * fields enclosed by brackets "[]" replaced with your own identifying 17fcf3ce44SJohn Forte * information: Portions Copyright [yyyy] [name of copyright owner] 18fcf3ce44SJohn Forte * 19fcf3ce44SJohn Forte * CDDL HEADER END 20fcf3ce44SJohn Forte */ 21fcf3ce44SJohn Forte /* 22fcf3ce44SJohn Forte * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 23fcf3ce44SJohn Forte * Use is subject to license terms. 24fcf3ce44SJohn Forte */ 25fcf3ce44SJohn Forte 26fcf3ce44SJohn Forte 27fcf3ce44SJohn Forte 28fcf3ce44SJohn Forte #include "Listener.h" 29fcf3ce44SJohn Forte #include "Exceptions.h" 30fcf3ce44SJohn Forte #include "Lockable.h" 31fcf3ce44SJohn Forte 32fcf3ce44SJohn Forte using namespace std; 33fcf3ce44SJohn Forte 34fcf3ce44SJohn Forte /** 35fcf3ce44SJohn Forte * Global lock for list of listeners 36fcf3ce44SJohn Forte */ 37fcf3ce44SJohn Forte pthread_mutex_t Listener::staticLock = PTHREAD_MUTEX_INITIALIZER; 38fcf3ce44SJohn Forte 39fcf3ce44SJohn Forte /** 40fcf3ce44SJohn Forte * Global list of listeners 41fcf3ce44SJohn Forte */ 42fcf3ce44SJohn Forte vector<Listener*> Listener::listeners; 43fcf3ce44SJohn Forte 44fcf3ce44SJohn Forte /** 45fcf3ce44SJohn Forte * Type for listener list iteration 46fcf3ce44SJohn Forte */ 47fcf3ce44SJohn Forte typedef vector<Listener *>::iterator ListenerIterator; 48fcf3ce44SJohn Forte 49fcf3ce44SJohn Forte /** 50fcf3ce44SJohn Forte * @memo Create a new generic listener 51fcf3ce44SJohn Forte * @exception ... underlying exceptions will be thrown 52fcf3ce44SJohn Forte * @param userData The opaque user data for event callback 53*f7c08772SToomas Soome * 54fcf3ce44SJohn Forte */ Listener(void * userData)55fcf3ce44SJohn ForteListener::Listener(void *userData) { 56fcf3ce44SJohn Forte data = userData; 57fcf3ce44SJohn Forte Lockable::lock(&staticLock); 58fcf3ce44SJohn Forte try { 59fcf3ce44SJohn Forte listeners.insert(listeners.begin(), this); 60fcf3ce44SJohn Forte } catch (...) { 61fcf3ce44SJohn Forte Lockable::unlock(&staticLock); 62fcf3ce44SJohn Forte throw; 63fcf3ce44SJohn Forte } 64fcf3ce44SJohn Forte Lockable::unlock(&staticLock); 65fcf3ce44SJohn Forte } 66fcf3ce44SJohn Forte 67fcf3ce44SJohn Forte /** 68fcf3ce44SJohn Forte * @memo Free up a generic listener, keeping global list in sync. 69fcf3ce44SJohn Forte */ ~Listener()70fcf3ce44SJohn ForteListener::~Listener() { 71fcf3ce44SJohn Forte Lockable::lock(&staticLock); 72*f7c08772SToomas Soome for (ListenerIterator tmp = listeners.begin(); 73*f7c08772SToomas Soome tmp != listeners.end(); tmp++) { 74fcf3ce44SJohn Forte if (*tmp == this) { 75*f7c08772SToomas Soome listeners.erase(tmp); 76*f7c08772SToomas Soome break; 77fcf3ce44SJohn Forte } 78fcf3ce44SJohn Forte } 79fcf3ce44SJohn Forte Lockable::unlock(&staticLock); 80fcf3ce44SJohn Forte } 81fcf3ce44SJohn Forte 82fcf3ce44SJohn Forte /** 83fcf3ce44SJohn Forte * @memo Find a listener based on the callback handle 84fcf3ce44SJohn Forte * @exception InvalidHandleException if the callback handle does not 85fcf3ce44SJohn Forte * match any listeners 86fcf3ce44SJohn Forte * @return The Listener who matches the callback handle 87fcf3ce44SJohn Forte * @param cbh The callback handle 88fcf3ce44SJohn Forte */ findListener(void * cbh)89fcf3ce44SJohn ForteListener* Listener::findListener(void *cbh) { 90fcf3ce44SJohn Forte Lockable::lock(&staticLock); 91fcf3ce44SJohn Forte try { 92fcf3ce44SJohn Forte for (ListenerIterator tmp = listeners.begin(); 93fcf3ce44SJohn Forte tmp != listeners.end(); tmp++) { 94fcf3ce44SJohn Forte if (*tmp == cbh) { 95fcf3ce44SJohn Forte Lockable::unlock(&staticLock); 96fcf3ce44SJohn Forte return (*tmp); 97fcf3ce44SJohn Forte } 98fcf3ce44SJohn Forte } 99fcf3ce44SJohn Forte } catch (...) { 100fcf3ce44SJohn Forte Lockable::unlock(&staticLock); 101fcf3ce44SJohn Forte throw; 102fcf3ce44SJohn Forte } 103fcf3ce44SJohn Forte Lockable::unlock(&staticLock); 104fcf3ce44SJohn Forte throw InvalidHandleException(); 105fcf3ce44SJohn Forte } 106