557946e57c
We currently throw out the return values from builtin functions and occasionally log errors with no supporting context. This change uses the newly introduced Result<T> class to communicate a successful result or an error back to callers in order to print an error with clear context when a builtin fails. Example: init: Command 'write /sys/class/leds/vibrator/trigger transient' action=init (/init.rc:245) took 0ms and failed: Unable to write to file '/sys/class/leds/vibrator/trigger': open() failed: No such file or directory Test: boot bullhead Merged-In: Idc18f331d2d646629c6093c1e0f2996cf9b42aec Change-Id: Idc18f331d2d646629c6093c1e0f2996cf9b42aec
43 lines
1.1 KiB
C++
43 lines
1.1 KiB
C++
/*
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* Copyright (C) 2015 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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#ifndef _INIT_BUILTINS_H
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#define _INIT_BUILTINS_H
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#include <functional>
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#include <map>
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#include <string>
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#include <vector>
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#include "keyword_map.h"
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#include "result.h"
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namespace android {
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namespace init {
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using BuiltinFunction = std::function<Result<Success>(const std::vector<std::string>&)>;
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class BuiltinFunctionMap : public KeywordMap<BuiltinFunction> {
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public:
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BuiltinFunctionMap() {}
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private:
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const Map& map() const override;
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};
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} // namespace init
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} // namespace android
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#endif
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