sourcehandler/src/distributed_input_source_handler.cpp

/*
 * Copyright (c) 2021-2023 Huawei Device Co., Ltd.
 * 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 "distributed_input_source_handler.h"

#include "dinput_errcode.h"
#include "dinput_log.h"
#include "hisysevent_util.h"
#include "i_distributed_source_input.h"
#include "load_d_input_source_callback.h"

namespace OHOS {
namespace DistributedHardware {
namespace DistributedInput {
IMPLEMENT_SINGLE_INSTANCE(DistributedInputSourceHandler);

DistributedInputSourceHandler::DistributedInputSourceHandler()
{
    DHLOGI("DInputSourceHandler construct.");
    std::lock_guard<std::mutex> lock(proxyMutex_);
    if (sourceSvrRecipient_ == nullptr) {
        sourceSvrRecipient_ = new (std::nothrow) DInputSourceSvrRecipient();
    }

    if (dInputSourceCallback_ == nullptr) {
        dInputSourceCallback_ = new (std::nothrow) LoadDInputSourceCallback();
    }
}

int32_t DistributedInputSourceHandler::InitSource(const std::string &params)
{
    DHLOGI("DistributedInputSourceHandler InitSource begin");
    std::unique_lock<std::mutex> lock(proxyMutex_);
    sptr<ISystemAbilityManager> samgr = SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
    if (!samgr) {
        DHLOGE("Failed to get system ability mgr.");
        return ERR_DH_INPUT_SINK_HANDLER_INIT_SOURCE_SA_FAIL;
    }
    sptr<LoadDInputSourceCallback> loadCallback(new LoadDInputSourceCallback(params));
    HisyseventUtil::GetInstance().SysEventWriteBehavior(DINPUT_INIT,
        "dinput init source sa start.");
    int32_t ret = samgr->LoadSystemAbility(DISTRIBUTED_HARDWARE_INPUT_SOURCE_SA_ID, loadCallback);
    if (ret != ERR_OK) {
        DHLOGE("Failed to Load systemAbility, systemAbilityId:%d, ret code:%d",
            DISTRIBUTED_HARDWARE_INPUT_SOURCE_SA_ID, ret);
        return ERR_DH_INPUT_SINK_HANDLER_INIT_SOURCE_SA_FAIL;
    }

    auto waitStatus = proxyConVar_.wait_for(lock, std::chrono::milliseconds(INPUT_LOAD_SA_TIMEOUT_MS),
        [this]() { return (DInputSAManager::GetInstance().HasDInputSourceProxy()); });
    if (!waitStatus) {
        DHLOGE("dinput load source sa timeout.");
        return ERR_DH_INPUT_SINK_HANDLER_INIT_SOURCE_SA_FAIL;
    }

    DHLOGI("DistributedInputSourceHandler InitSource end");
    return DH_SUCCESS;
}

void DistributedInputSourceHandler::FinishStartSA(const std::string &params, const sptr<IRemoteObject> &remoteObject)
{
    DHLOGI("DInputSourceHandle FinishStartSA");
    std::lock_guard<std::mutex> lock(proxyMutex_);
    if (sourceSvrRecipient_ == nullptr) {
        DHLOGE("sourceSvrRecipient is nullptr.");
        return;
    }
    remoteObject->AddDeathRecipient(sourceSvrRecipient_);
    dInputSourceProxy_ = iface_cast<IDistributedSourceInput>(remoteObject);
    DInputSAManager::GetInstance().SetDInputSourceProxy(remoteObject);
    if ((dInputSourceProxy_ == nullptr) || (dInputSourceProxy_->AsObject() == nullptr)) {
        DHLOGE("Faild to get input source proxy.");
        return;
    }
    DistributedInputClient::GetInstance().InitSource();
    proxyConVar_.notify_all();
}

int32_t DistributedInputSourceHandler::ReleaseSource()
{
    return DistributedInputClient::GetInstance().ReleaseSource();
}

int32_t DistributedInputSourceHandler::RegisterDistributedHardware(const std::string &devId,
    const std::string &dhId, const EnableParam &param, std::shared_ptr<RegisterCallback> callback)
{
    return DistributedInputClient::GetInstance().RegisterDistributedHardware(devId, dhId, param.sinkAttrs, callback);
}

int32_t DistributedInputSourceHandler::UnregisterDistributedHardware(const std::string &devId,
    const std::string &dhId, std::shared_ptr<UnregisterCallback> callback)
{
    return DistributedInputClient::GetInstance().UnregisterDistributedHardware(devId, dhId, callback);
}

int32_t DistributedInputSourceHandler::ConfigDistributedHardware(const std::string &devId,
    const std::string &dhId, const std::string &key, const std::string &value)
{
    return DH_SUCCESS;
}

void DistributedInputSourceHandler::SALoadSourceCb::OnLoadSystemAbilitySuccess(int32_t systemAbilityId,
    const OHOS::sptr<IRemoteObject> &remoteObject)
{
    currSystemAbilityId = systemAbilityId;
    currRemoteObject = remoteObject;
    DHLOGI("DistributedInputSourceHandler OnLoadSystemAbilitySuccess. systemAbilityId=%d", systemAbilityId);
}

void DistributedInputSourceHandler::SALoadSourceCb::OnLoadSystemAbilityFail(int32_t systemAbilityId)
{
    currSystemAbilityId = systemAbilityId;
    DHLOGE("DistributedInputSourceHandler OnLoadSystemAbilityFail. systemAbilityId=%d", systemAbilityId);
}

void DistributedInputSourceHandler::DInputSourceSvrRecipient::OnRemoteDied(const wptr<IRemoteObject> &remote)
{
    if (remote == nullptr) {
        DHLOGE("OnRemoteDied remote is nullptr.");
        return;
    }
    DHLOGI("DInputSourceSvrRecipient OnRemoteDied.");
    DistributedInputSourceHandler::GetInstance().OnRemoteSourceSvrDied(remote);
}

void DistributedInputSourceHandler::OnRemoteSourceSvrDied(const wptr<IRemoteObject> &remote)
{
    DHLOGI("OnRemoteSourceSvrDied.");
    std::lock_guard<std::mutex> lock(proxyMutex_);
    if (dInputSourceProxy_ == nullptr) {
        DHLOGE("dInputSourceProxy is nullptr.");
        return;
    }
    if (dInputSourceProxy_->AsObject() == nullptr) {
        DHLOGE("AsObject is nullptr.");
        return;
    }
    sptr<IRemoteObject> remoteObject = remote.promote();
    if (remoteObject == nullptr) {
        DHLOGE("OnRemoteDied remote promoted failed");
        return;
    }

    if (dInputSourceProxy_->AsObject() != remoteObject) {
        DHLOGE("OnRemoteSourceSvrDied not found remote object.");
        return;
    }
    dInputSourceProxy_->AsObject()->RemoveDeathRecipient(sourceSvrRecipient_);
    dInputSourceProxy_ = nullptr;
}

IDistributedHardwareSource *GetSourceHardwareHandler()
{
    return &DistributedInputSourceHandler::GetInstance();
}
} // namespace DistributedInput
} // namespace DistributedHardware
} // namespace OHOS