fa0c21c94c
This creates the concept of 'event_trigger' vs 'property_trigger' Previously these were merged into one, such that 'on property:a=b && property:b=c' is triggered when properties a=b and b=c as expected, however combinations such as 'on early-boot && boot' would trigger during both early-boot and boot. Similarly, 'on early-boot && property:a=b' would trigger on both early-boot and again when property a equals b. The event trigger distinction ensures that the first example fails to parse and the second example only triggers on early-boot if property a equals b. This coalesces Actions with the same triggers into a single Action object Change-Id: I8f661d96e8a2d40236f252301bfe10979d663ea6
82 lines
2.7 KiB
C++
82 lines
2.7 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_ACTION_H
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#define _INIT_ACTION_H
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#include <map>
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#include <queue>
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#include <string>
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#include <vector>
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class Action {
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public:
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Action();
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void AddCommand(int (*f)(int nargs, char** args),
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const std::vector<std::string>& args,
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const std::string& filename = "", int line = 0);
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bool InitTriggers(const std::vector<std::string>& args, std::string* err);
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bool InitSingleTrigger(const std::string& trigger);
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std::size_t NumCommands() const;
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void ExecuteOneCommand(std::size_t command) const;
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void ExecuteAllCommands() const;
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bool CheckEventTrigger(const std::string& trigger) const;
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bool CheckPropertyTrigger(const std::string& name,
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const std::string& value) const;
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bool TriggersEqual(const class Action& other) const;
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std::string BuildTriggersString() const;
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void DumpState() const;
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private:
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class Command;
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void ExecuteCommand(const Command& command) const;
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bool CheckPropertyTriggers(const std::string& name = "",
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const std::string& value = "") const;
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bool ParsePropertyTrigger(const std::string& trigger, std::string* err);
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std::map<std::string, std::string> property_triggers_;
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std::string event_trigger_;
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std::vector<Command*> commands_;
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};
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class ActionManager {
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public:
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static ActionManager& GetInstance();
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void QueueEventTrigger(const std::string& trigger);
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void QueuePropertyTrigger(const std::string& name, const std::string& value);
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void QueueAllPropertyTriggers();
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void QueueBuiltinAction(int (*func)(int nargs, char** args),
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const std::string& name);
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void ExecuteOneCommand();
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bool HasMoreCommands() const;
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Action* AddNewAction(const std::vector<std::string>& triggers,
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std::string* err);
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void DumpState() const;
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private:
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ActionManager();
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ActionManager(ActionManager const&) = delete;
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void operator=(ActionManager const&) = delete;
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std::vector<Action*> action_list_;
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std::queue<Action*> action_queue_;
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std::size_t cur_command_;
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};
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#endif
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