platform_system_core/nexus/PropertyManager.h

/*
 * 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.
 */

#ifndef _PROPERTY_MANAGER_H
#define _PROPERTY_MANAGER_H

#include <errno.h>
#include <pthread.h>

#include <utils/List.h>

#include "Property.h"

class PropertyManager {
    PropertyNamespaceCollection *mNamespaces;
    pthread_mutex_t    mLock;

public:
    PropertyManager();
    virtual ~PropertyManager();
    int attachProperty(const char *ns, Property *p);
    int detachProperty(const char *ns, Property *p);

    android::List<char *> *createPropertyList(const char *prefix);

    int set(const char *name, const char *value);
    const char *get(const char *name, char *buffer, size_t max);

private:
    PropertyNamespace *lookupNamespace_UNLOCKED(const char *ns);
    Property *lookupProperty_UNLOCKED(PropertyNamespace *ns, const char *name);
    int doSet(Property *p, int idx, const char *value);
    int doGet(Property *p, int idx, char *buffer, size_t max);
};

#endif