95 lines
2.6 KiB
C++
95 lines
2.6 KiB
C++
// kernel.h
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// Global variables for the Nachos kernel.
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//
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// Copyright (c) 1992-1996 The Regents of the University of California.
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// All rights reserved. See copyright.h for copyright notice and limitation
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// of liability and disclaimer of warranty provisions.
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#ifndef KERNEL_H
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#define KERNEL_H
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#include "copyright.h"
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#include "debug.h"
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#include "utility.h"
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#include "thread.h"
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#include "scheduler.h"
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#include "interrupt.h"
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#include "stats.h"
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#include "alarm.h"
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#include "filesys.h"
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#include "machine.h"
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class PostOfficeInput;
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class PostOfficeOutput;
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class SynchConsoleInput;
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class SynchConsoleOutput;
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class SynchDisk;
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// Todo ----
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// ---------
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class Kernel {
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public:
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Kernel(int argc, char **argv);
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// Interpret command line arguments
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~Kernel(); // deallocate the kernel
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void Initialize(); // initialize the kernel -- separated
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// from constructor because
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// refers to "kernel" as a global
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void ExecAll();
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// Todo ----
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int Exec(char* name, int priority);
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// ---------
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void ThreadSelfTest(); // self test of threads and synchronization
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void ConsoleTest(); // interactive console self test
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void NetworkTest(); // interactive 2-machine network test
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Thread* getThread(int threadID){return t[threadID];}
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int CreateFile(char* filename); // fileSystem call
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// These are public for notational convenience; really,
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// they're global variables used everywhere.
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Thread *currentThread; // the thread holding the CPU
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Scheduler *scheduler; // the ready list
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Interrupt *interrupt; // interrupt status
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Statistics *stats; // performance metrics
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Alarm *alarm; // the software alarm clock
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Machine *machine; // the simulated CPU
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SynchConsoleInput *synchConsoleIn;
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SynchConsoleOutput *synchConsoleOut;
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SynchDisk *synchDisk;
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FileSystem *fileSystem;
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PostOfficeInput *postOfficeIn;
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PostOfficeOutput *postOfficeOut;
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FrameTable *frameTable;
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int hostName; // machine identifier
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private:
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Thread* t[10];
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// Todo ----
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char* execfile[10];
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int execPriority[10];
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// ---------
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int execfileNum;
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int threadNum;
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bool randomSlice; // enable pseudo-random time slicing
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bool debugUserProg; // single step user program
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double reliability; // likelihood messages are dropped
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char *consoleIn; // file to read console input from
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char *consoleOut; // file to send console output to
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#ifndef FILESYS_STUB
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bool formatFlag; // format the disk if this is true
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#endif
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};
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#endif // KERNEL_H
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