2N/A/*
2N/A * CDDL HEADER START
2N/A *
2N/A * The contents of this file are subject to the terms of the
2N/A * Common Development and Distribution License (the "License").
2N/A * You may not use this file except in compliance with the License.
2N/A *
2N/A * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
2N/A * or http://www.opensolaris.org/os/licensing.
2N/A * See the License for the specific language governing permissions
2N/A * and limitations under the License.
2N/A *
2N/A * When distributing Covered Code, include this CDDL HEADER in each
2N/A * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
2N/A * If applicable, add the following below this CDDL HEADER, with the
2N/A * fields enclosed by brackets "[]" replaced with your own identifying
2N/A * information: Portions Copyright [yyyy] [name of copyright owner]
2N/A *
2N/A * CDDL HEADER END
2N/A */
2N/A/*
2N/A * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
2N/A * Use is subject to license terms.
2N/A */
2N/A
2N/A
2N/A
2N/A#include "Listener.h"
2N/A#include "Exceptions.h"
2N/A#include "Lockable.h"
2N/A
2N/Ausing namespace std;
2N/A
2N/A/**
2N/A * Global lock for list of listeners
2N/A */
2N/Apthread_mutex_t Listener::staticLock = PTHREAD_MUTEX_INITIALIZER;
2N/A
2N/A/**
2N/A * Global list of listeners
2N/A */
2N/Avector<Listener*> Listener::listeners;
2N/A
2N/A/**
2N/A * Type for listener list iteration
2N/A */
2N/Atypedef vector<Listener *>::iterator ListenerIterator;
2N/A
2N/A/**
2N/A * @memo Create a new generic listener
2N/A * @exception ... underlying exceptions will be thrown
2N/A * @param userData The opaque user data for event callback
2N/A *
2N/A */
2N/AListener::Listener(void *userData) {
2N/A data = userData;
2N/A Lockable::lock(&staticLock);
2N/A try {
2N/A listeners.insert(listeners.begin(), this);
2N/A } catch (...) {
2N/A Lockable::unlock(&staticLock);
2N/A throw;
2N/A }
2N/A Lockable::unlock(&staticLock);
2N/A}
2N/A
2N/A/**
2N/A * @memo Free up a generic listener, keeping global list in sync.
2N/A * @exception ... underlying exceptions will be thrown
2N/A */
2N/AListener::~Listener() {
2N/A Lockable::lock(&staticLock);
2N/A try {
2N/A for (ListenerIterator tmp = listeners.begin();
2N/A tmp != listeners.end(); tmp++) {
2N/A if (*tmp == this) {
2N/A listeners.erase(tmp);
2N/A Lockable::unlock(&staticLock);
2N/A return;
2N/A }
2N/A }
2N/A } catch (...) {
2N/A Lockable::unlock(&staticLock);
2N/A throw;
2N/A }
2N/A Lockable::unlock(&staticLock);
2N/A}
2N/A
2N/A/**
2N/A * @memo Find a listener based on the callback handle
2N/A * @exception InvalidHandleException if the callback handle does not
2N/A * match any listeners
2N/A * @return The Listener who matches the callback handle
2N/A * @param cbh The callback handle
2N/A */
2N/AListener* Listener::findListener(void *cbh) {
2N/A Lockable::lock(&staticLock);
2N/A try {
2N/A for (ListenerIterator tmp = listeners.begin();
2N/A tmp != listeners.end(); tmp++) {
2N/A if (*tmp == cbh) {
2N/A Lockable::unlock(&staticLock);
2N/A return (*tmp);
2N/A }
2N/A }
2N/A } catch (...) {
2N/A Lockable::unlock(&staticLock);
2N/A throw;
2N/A }
2N/A Lockable::unlock(&staticLock);
2N/A throw InvalidHandleException();
2N/A}