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88 lines
2.5 KiB
88 lines
2.5 KiB
/*
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* Copyright (C) 2019 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include "WaitCommand.h"
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#include "Lshal.h"
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#include <hidl/ServiceManagement.h>
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#include <hidl-util/FQName.h>
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namespace android {
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namespace lshal {
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std::string WaitCommand::getName() const {
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return "wait";
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}
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std::string WaitCommand::getSimpleDescription() const {
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return "Wait for HIDL HAL to start if it is not already started.";
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}
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Status WaitCommand::parseArgs(const Arg &arg) {
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if (optind + 1 != arg.argc) {
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return USAGE;
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}
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mInterfaceName = arg.argv[optind];
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++optind;
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return OK;
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}
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Status WaitCommand::main(const Arg &arg) {
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Status status = parseArgs(arg);
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if (status != OK) {
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return status;
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}
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auto [interface, instance] = splitFirst(mInterfaceName, '/');
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instance = instance.empty() ? "default" : instance;
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FQName fqName;
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if (!FQName::parse(interface, &fqName) || fqName.isIdentifier() || !fqName.isFullyQualified()) {
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mLshal.err() << "Invalid fully-qualified name '" << interface << "'\n\n";
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return USAGE;
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}
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using android::hidl::manager::V1_0::IServiceManager;
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using android::hardware::details::getRawServiceInternal;
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auto service = getRawServiceInternal(interface, instance, true /*retry*/, false /*getStub*/);
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if (service == nullptr) {
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mLshal.err() << "Service not found (missing permissions or not in VINTF manifest?).\n";
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return NO_INTERFACE;
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}
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return OK;
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}
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void WaitCommand::usage() const {
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static const std::string debug =
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"wait:\n"
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" lshal wait <interface/instance> \n"
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" For a HAL that is on the device, wait for the HAL to start.\n"
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" This will not start a HAL unless it is configured as a lazy HAL.\n"
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" <interface>: Format is `android.hardware.foo@1.0::IFoo/default`.\n"
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" If instance name is missing `default` is used.\n";
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mLshal.err() << debug;
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}
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} // namespace lshal
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} // namespace android
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