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/*
* Copyright (C) 2008 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "PropertyManager"
#include <cutils/log.h>
#include "PropertyManager.h"
PropertyManager::PropertyManager() {
mPropertyPairs = new PropertyPairCollection();
pthread_mutex_init(&mLock, NULL);
}
PropertyManager::~PropertyManager() {
delete mPropertyPairs;
}
int PropertyManager::registerProperty(const char *name, IPropertyProvider *pp) {
PropertyPairCollection::iterator it;
// LOGD("registerProperty(%s)", name);
pthread_mutex_lock(&mLock);
for (it = mPropertyPairs->begin(); it != mPropertyPairs->end(); ++it) {
if (!strcmp(name, (*it)->getName())) {
errno = EADDRINUSE;
LOGE("Failed to register property %s (%s)",
name, strerror(errno));
pthread_mutex_unlock(&mLock);
return -1;
}
}
mPropertyPairs->push_back(new PropertyPair(name, pp));
pthread_mutex_unlock(&mLock);
return 0;
}
int PropertyManager::unregisterProperty(const char *name) {
PropertyPairCollection::iterator it;
// LOGD("unregisterProperty(%s)", name);
pthread_mutex_lock(&mLock);
for (it = mPropertyPairs->begin(); it != mPropertyPairs->end(); ++it) {
if (!strcmp(name, (*it)->getName())) {
delete ((*it));
mPropertyPairs->erase(it);
pthread_mutex_unlock(&mLock);
return 0;
}
}
pthread_mutex_unlock(&mLock);
errno = ENOENT;
return -1;
}
/*
* IPropertyManager methods
*/
int PropertyManager::set(const char *name, const char *value) {
PropertyPairCollection::iterator it;
pthread_mutex_lock(&mLock);
for (it = mPropertyPairs->begin(); it != mPropertyPairs->end(); ++it) {
if (!strcmp(name, (*it)->getName())) {
pthread_mutex_unlock(&mLock);
return (*it)->getProvider()->set(name, value);
}
}
pthread_mutex_unlock(&mLock);
errno = ENOENT;
return -1;
}
const char *PropertyManager::get(const char *name, char *buffer, size_t max) {
PropertyPairCollection::iterator it;
memset(buffer, 0, max);
pthread_mutex_lock(&mLock);
for (it = mPropertyPairs->begin(); it != mPropertyPairs->end(); ++it) {
if (!strcmp(name, (*it)->getName())) {
pthread_mutex_unlock(&mLock);
return (*it)->getProvider()->get(name, buffer, max);
}
}
pthread_mutex_unlock(&mLock);
errno = ENOENT;
return NULL;
}
android::List<char *> *PropertyManager::createPropertyList() {
android::List<char *> *c = new android::List<char *>();
PropertyPairCollection::iterator it;
pthread_mutex_lock(&mLock);
for (it = mPropertyPairs->begin(); it != mPropertyPairs->end(); ++it)
c->push_back(strdup((*it)->getName()));
pthread_mutex_unlock(&mLock);
return c;
}
PropertyPair::PropertyPair(const char *name, IPropertyProvider *pp) {
mName = strdup(name);
mPp = pp;
}
PropertyPair::~PropertyPair() {
free(mName);
}
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