Operating Syetem

/** @file FCFSSchedulingPolicy.hpp * @brief FCFSSchedulingPolicy class API/Includes * * @author Student Name * @note cwid: 123456 * @date Fall 2019 * @note ide: g++ 8.2.0 / GNU Make 4.2.1 * * Header include file for our FCFSSchedulingPolicy class. * This is a concrete child class implementation of a * SchedulingPolicy strategy. This policy implements a * non-preemptive FCFS */ #ifndef FCFSSCHEDULING_POLICY_HPP #define FCFSSCHEDULING_POLICY_HPP #include "SchedulingSystem.hpp" #include <string> #include <queue> // forward declaration needed for circular references class SchedulingSystem; using namespace std; /// @brief More descriptive name for things that hold process /// identifiers. We use int values for our processes identifiers /// in this simulation. typedef int Pid; /** @class FCFSSchedulingPolicy * @brief FCFSSchedulingPolicy abstract base class * * This class defines the interface or API for the helper page * replacement scheme. A PagingSystem simulation will instanciate * a derived class of this API, and will expect it to implement the * interface defined by this abstract base class. */ class FCFSSchedulingPolicy : public SchedulingPolicy { private: /// @brief The ready queue for the FCFS policy, keeps track of /// which process arrived first for dispatching. queue<Pid> readyQueue; public: FCFSSchedulingPolicy(); // virtual function, concrete subclasses can override if needed virtual ~FCFSSchedulingPolicy(); // virtual functions, concrete subclasses must implement void newProcess(Pid pid); Pid dispatch(); bool preempt(); void resetPolicy(); }; #endif // FCFSSCHEDULING_POLICY_HPP