storaged/storaged_service.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.
 */

#include <vector>

#include <binder/IBinder.h>
#include <binder/IInterface.h>

#include <binder/IPCThreadState.h>
#include <binder/IServiceManager.h>

#include <storaged.h>
#include <storaged_service.h>

extern storaged_t storaged;

std::vector<struct task_info> BpStoraged::dump_tasks(const char* /*option*/) {
    Parcel data, reply;
    data.writeInterfaceToken(IStoraged::getInterfaceDescriptor());

    remote()->transact(DUMPTASKS, data, &reply);

    uint32_t res_size = reply.readInt32();
    std::vector<struct task_info> res(res_size);
    for (auto&& task : res) {
        reply.read(&task, sizeof(task));
    }
    return res;
}

IMPLEMENT_META_INTERFACE(Storaged, "Storaged");

status_t BnStoraged::onTransact(uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) {
    data.checkInterface(this);

    switch(code) {
        case DUMPTASKS: {
                std::vector<struct task_info> res = dump_tasks(NULL);

                reply->writeInt32(res.size());
                for (auto task : res) {
                    reply->write(&task, sizeof(task));
                }
                return NO_ERROR;
            }
            break;
        default:
            return BBinder::onTransact(code, data, reply, flags);
    }
}
std::vector<struct task_info> Storaged::dump_tasks(const char* /* option */) {
    return storaged.get_tasks();
}

sp<IStoraged> get_storaged_service() {
    sp<IServiceManager> sm = defaultServiceManager();
    if (sm == NULL) return NULL;

    sp<IBinder> binder = sm->getService(String16("storaged"));
    if (binder == NULL) return NULL;

    sp<IStoraged> storaged = interface_cast<IStoraged>(binder);

    return storaged;
}