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57 lines
1.7 KiB
57 lines
1.7 KiB
#pragma once
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#include <memory>
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#include "J2534Frame.h"
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class J2534Connection;
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/**
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An Action represents a unit of work that can be scheduled for execution at a later time.
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Actions are not guaranteed to be run at their specified time, but a best effort is made.
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An Action will never execute early, but can execute later depending on what is in the
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queus.
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Many different operations are based on this base class. Instead of making a thread,
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consider if the work can be offloaded to the Task Queue.
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*/
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class Action
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{
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public:
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Action(
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std::weak_ptr<J2534Connection> connection,
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std::chrono::microseconds delay
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) : connection(connection), delay(delay) { };
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Action(
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std::weak_ptr<J2534Connection> connection
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) : connection(connection), delay(std::chrono::microseconds(0)) { };
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//The function called by the task runner when this action is to be invoked.
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virtual void execute() = 0;
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//Reschedule this Action for now().
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void scheduleImmediate() {
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expire = std::chrono::steady_clock::now();
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}
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//Reschedule this Action relative to its last expiration time.
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void scheduleDelay() {
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expire += this->delay;
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}
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//Reschedule this action {delay} after now().
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void scheduleImmediateDelay() {
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expire = std::chrono::steady_clock::now() + this->delay;
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}
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//Reschedule this Action based on a specific base time.
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void schedule(std::chrono::time_point<std::chrono::steady_clock> starttine, BOOL adddelayed) {
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this->expire = starttine;
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if (adddelayed)
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expire += this->delay;
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}
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std::weak_ptr<J2534Connection> connection;
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std::chrono::microseconds delay;
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//The timestamp at which point this Action is ready to be executed.
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std::chrono::time_point<std::chrono::steady_clock> expire;
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};
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