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84 lines
2.8 KiB
84 lines
2.8 KiB
4 months ago
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// Copyright (C) 2018 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 "update_engine/update_boot_flags_action.h"
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#include <base/bind.h>
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#include <base/logging.h>
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#include "update_engine/common/boot_control.h"
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namespace chromeos_update_engine {
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bool UpdateBootFlagsAction::updated_boot_flags_ = false;
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bool UpdateBootFlagsAction::is_running_ = false;
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void UpdateBootFlagsAction::PerformAction() {
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if (is_running_) {
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LOG(INFO) << "Update boot flags running, nothing to do.";
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processor_->ActionComplete(this, ErrorCode::kSuccess);
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return;
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}
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if (updated_boot_flags_) {
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LOG(INFO) << "Already updated boot flags. Skipping.";
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processor_->ActionComplete(this, ErrorCode::kSuccess);
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return;
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}
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// This is purely best effort. Failures should be logged by Subprocess. Run
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// the script asynchronously to avoid blocking the event loop regardless of
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// the script runtime.
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is_running_ = true;
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LOG(INFO) << "Marking booted slot as good.";
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if (!boot_control_->MarkBootSuccessfulAsync(
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base::Bind(&UpdateBootFlagsAction::CompleteUpdateBootFlags,
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base::Unretained(this)))) {
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CompleteUpdateBootFlags(false);
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}
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}
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void UpdateBootFlagsAction::TerminateProcessing() {
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is_running_ = false;
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}
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void UpdateBootFlagsAction::CompleteUpdateBootFlags(bool successful) {
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if (!successful) {
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// We ignore the failure for now because if the updating boot flags is flaky
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// or has a bug in a specific release, then blocking the update can cause
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// devices to stay behind even though we could have updated the system and
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// fixed the issue regardless of this failure.
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//
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// TODO(ahassani): Add new error code metric for kUpdateBootFlagsFailed.
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LOG(ERROR) << "Updating boot flags failed, but ignoring its failure.";
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}
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// As the callback to MarkBootSuccessfulAsync, this function can still be
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// called even after the current UpdateBootFlagsAction object get destroyed by
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// the action processor. In this case, check the value of the static variable
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// |is_running_| and skip executing the callback function.
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if (!is_running_) {
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LOG(INFO) << "UpdateBootFlagsAction is no longer running.";
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return;
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}
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is_running_ = false;
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updated_boot_flags_ = true;
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processor_->ActionComplete(this, ErrorCode::kSuccess);
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}
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} // namespace chromeos_update_engine
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