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// Copyright (C) 2020 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 <android-base/logging.h>
#include <android-base/parseint.h>
#include <android/binder_manager.h>
#include <android/binder_process.h>
#include <getopt.h>
#include <hidl/HidlTransportSupport.h>
#include <optional>
#include "AudioProxyError.h"
#include "AudioProxyImpl.h"
#include "DevicesFactoryImpl.h"
using android::sp;
using android::status_t;
using namespace audio_proxy::service;
namespace {
std::optional<ServiceConfig> parseServiceConfigFromCommandLine(int argc,
char** argv) {
ServiceConfig config;
static option options[] = {
{"service_name", required_argument, nullptr, 's'},
{"buffer_size_ms", required_argument, nullptr, 'b'},
{"latency_ms", required_argument, nullptr, 'l'},
{nullptr, 0, nullptr, 0},
};
int val = 0;
while ((val = getopt_long(argc, argv, "s:b:l:", options, nullptr)) != -1) {
switch (val) {
case 's':
config.name = optarg;
break;
case 'b':
if (!android::base::ParseUint(optarg, &config.bufferSizeMs)) {
return std::nullopt;
}
break;
case 'l':
if (!android::base::ParseUint(optarg, &config.latencyMs)) {
return std::nullopt;
}
break;
default:
break;
}
}
if (config.name.empty() || config.bufferSizeMs == 0 ||
config.latencyMs == 0) {
return std::nullopt;
}
return config;
}
} // namespace
int main(int argc, char** argv) {
auto config = parseServiceConfigFromCommandLine(argc, argv);
if (!config) {
return ERROR_INVALID_ARGS;
}
// Config thread pool.
ABinderProcess_setThreadPoolMaxThreadCount(1);
android::hardware::configureRpcThreadpool(1, false /* callerWillJoin */);
// Register AudioProxy service.
auto audioProxy = ndk::SharedRefBase::make<AudioProxyImpl>();
const std::string audioProxyName =
std::string(AudioProxyImpl::descriptor) + "/" + config->name;
binder_status_t binder_status = AServiceManager_addService(
audioProxy->asBinder().get(), audioProxyName.c_str());
if (binder_status != STATUS_OK) {
LOG(ERROR) << "Failed to start " << config->name
<< " AudioProxy service, status " << binder_status;
return ERROR_AIDL_FAILURE;
}
// Register AudioProxy audio HAL.
auto devicesFactory =
sp<DevicesFactoryImpl>::make(audioProxy->getBusStreamProvider(), *config);
status_t status = devicesFactory->registerAsService(config->name);
if (status != android::OK) {
LOG(ERROR) << "Failed to start " << config->name << " audio HAL, status "
<< status;
return ERROR_HIDL_FAILURE;
}
ABinderProcess_joinThreadPool();
// `ABinderProcess_joinThreadpool` should never return. Return -2 here for
// unexpected process exit.
return ERROR_UNEXPECTED;
}
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