#define MAX_OS_THREADS 3 typedef ">

jos_c1 - jos.c starting point for student's...

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/* * jos.c -- starting point for student's os. * */ #include "simulator.h" #include "jos.h" #include <thread.h> #define MAX_OS_THREADS 3 typedef void * (*RunFunction)(void *); JOS_GLOBALS JG; /*static char *Argv[5]={ "argtest","Rex,","my","man!",NULL };*/ static char *Argv[2]={ "a.out",NULL}; /* Called once to initialize the global variables */ initialize_global_jos_state() { JG.readyq = new_dllist(); JG.nulljob = (PCB *) malloc(sizeof(PCB)); /* This doesn't do anything, but gives me a place holder for noop() jobs */ JG.nextin=0; JG.nextout=0; sema_init(&JG.writeok,0,USYNC_THREAD,NULL); sema_init(&JG.consoleWait,0,USYNC_THREAD,NULL); sema_init(&JG.nelem,0,USYNC_THREAD,NULL); sema_init(&JG.writers,1,USYNC_THREAD,NULL); sema_init(&JG.readers,1,USYNC_THREAD,NULL); } initialize_user_process(char **filename) { int i,k,argc,argv; PCB *init_pcb; int *argv_ptr; int tos; int temp; argc=1; argv_ptr=(int *)malloc(sizeof(int)*argc); bzero(main_memory,MemorySize); if(temp=load_user_program(filename[0]) <0) { fprintf(stderr,"Can't load program.\n"); exit(1); } printf("load user program return %d\n",temp); init_pcb=(PCB *) malloc(sizeof(PCB)); for(i=0;i<NumTotalRegs;i++) init_pcb->regs[i]=0;
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