libplatformconfig/PlatformConfig.cpp

/*
 * Copyright (c) 2017, The Linux Foundation. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 *       copyright notice, this list of conditions and the following
 *       disclaimer in the documentation and/or other materials provided
 *       with the distribution.
 *     * Neither the name of The Linux Foundation nor the names of its
 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#define LOG_TAG "PlatformConfig"

#include <errno.h>
#include <cutils/log.h>
#include <sys/mman.h>
#include "vidc_debug.h"
#include "PlatformConfig.h"
#include "ConfigParser.h"

namespace Platform {

#define PLAT_CONFIG_FILE "vendor/etc/system_properties.xml"

Config* Config::mInstance;

Config::Config() {
    Platform::ConfigParser::initAndParse(PLAT_CONFIG_FILE, mConfigMap);
}

Config* Config::getInstance() {
    DEBUG_PRINT_LOW("%s: Enter", __func__);
    if (!mInstance) {
        mInstance = new Config();
    }
    return mInstance;
}

ConfigError_t Config::getInt32(Config_t config, int32_t *value,
        const int32_t defaultValue) {
     Config *conf = getInstance();
    if (conf == nullptr) {
        *value = defaultValue;
        return FAIL;
    }
    if (conf->mConfigMap.find(configStrMap[config].name) == conf->mConfigMap.end()) {
        DEBUG_PRINT_HIGH("%s: Returning default", __func__);
        *value = defaultValue;
        return FAIL;
    }
    *value = (int32_t) atoi(conf->mConfigMap[configStrMap[config].name].c_str());
    DEBUG_PRINT_LOW("%s Config name: %s value: %d",
            __func__, configStrMap[config].name, *value);
    return OK;
}

}