blob: 437a66ae2f9dae81f835c079324dc89abf1498f2 [file] [log] [blame]
/*
* Copyright (C) 2019 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 "WaitCommand.h"
#include "Lshal.h"
#include <hidl/ServiceManagement.h>
#include <hidl-util/FQName.h>
namespace android {
namespace lshal {
std::string WaitCommand::getName() const {
return "wait";
}
std::string WaitCommand::getSimpleDescription() const {
return "Wait for HIDL HAL to start if it is not already started.";
}
Status WaitCommand::parseArgs(const Arg &arg) {
if (optind + 1 != arg.argc) {
return USAGE;
}
mInterfaceName = arg.argv[optind];
++optind;
return OK;
}
Status WaitCommand::main(const Arg &arg) {
Status status = parseArgs(arg);
if (status != OK) {
return status;
}
auto [interface, instance] = splitFirst(mInterfaceName, '/');
instance = instance.empty() ? "default" : instance;
FQName fqName;
if (!FQName::parse(interface, &fqName) || fqName.isIdentifier() || !fqName.isFullyQualified()) {
mLshal.err() << "Invalid fully-qualified name '" << interface << "'\n\n";
return USAGE;
}
using android::hidl::manager::V1_0::IServiceManager;
using android::hardware::details::getRawServiceInternal;
auto service = getRawServiceInternal(interface, instance, true /*retry*/, false /*getStub*/);
if (service == nullptr) {
mLshal.err() << "Service not found (missing permissions or not in VINTF manifest?).\n";
return NO_INTERFACE;
}
return OK;
}
void WaitCommand::usage() const {
static const std::string debug =
"wait:\n"
" lshal wait <interface/instance> \n"
" For a HAL that is on the device, wait for the HAL to start.\n"
" This will not start a HAL unless it is configured as a lazy HAL.\n"
" <interface>: Format is `android.hardware.foo@1.0::IFoo/default`.\n"
" If instance name is missing `default` is used.\n";
mLshal.err() << debug;
}
} // namespace lshal
} // namespace android