cmds/statsd/src/StatsService.cpp

/*
 * Copyright (C) 2016 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 "statsd"

#include "StatsService.h"

#include <binder/IPCThreadState.h>
#include <binder/IServiceManager.h>
#include <cutils/log.h>
#include <private/android_filesystem_config.h>
#include <utils/Looper.h>

#include <unistd.h>
#include <stdio.h>

using namespace android;

// ================================================================================
StatsService::StatsService(const sp<Looper>& handlerLooper)
{
    ALOGD("stats service constructed");
}

StatsService::~StatsService()
{
}

status_t
StatsService::dump(int fd, const Vector<String16>& args)
{
    FILE* out = fdopen(fd, "w");
    if (out == NULL) {
        return NO_MEMORY;  // the fd is already open
    }

    fprintf(out, "StatsService::dump:");
    ALOGD("StatsService::dump:");
    const int N = args.size();
    for (int i=0; i<N; i++) {
        fprintf(out, " %s", String8(args[i]).string());
        ALOGD("   %s", String8(args[i]).string());
    }
    fprintf(out, "\n");

    fclose(out);
    return NO_ERROR;
}

Status
StatsService::systemRunning()
{
    if (IPCThreadState::self()->getCallingUid() != AID_SYSTEM) {
        return Status::fromExceptionCode(Status::EX_SECURITY,
                "Only system uid can call systemRunning");
    }

    // When system_server is up and running, schedule the dropbox task to run.
    ALOGD("StatsService::systemRunning");

    return Status::ok();
}