mirror of https://github.com/zrafa/xinu-avr.git
Rafael Zurita
6 years ago
29 changed files with 245 additions and 67 deletions
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#include <xinu.h> |
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void change_proc_name( char *name) |
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{ |
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struct procent *prptr; /* pointer to proc. table entry */ |
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int i; |
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prptr = &proctab[currpid]; |
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prptr->prname[PNMLEN-1] = NULLCH; |
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for (i=0 ; i<PNMLEN-1 && (prptr->prname[i]=name[i])!=NULLCH; i++) |
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; |
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} |
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/* xsh_forever.c - xsh_forever */ |
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#include <xinu.h> |
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#include <stdio.h> |
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/*------------------------------------------------------------------------
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* xsh_forever |
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*------------------------------------------------------------------------ |
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*/ |
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shellcmd xsh_forever(int nargs, char *args[]) |
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{ |
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for (;;) |
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printf("a"); |
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return 0; |
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} |
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/* xsh_kill.c - xsh_kill */ |
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#include <xinu.h> |
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#include <string.h> |
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#include <stdio.h> |
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/*------------------------------------------------------------------------
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* xsh_kill - obtain and print the current month, day, year, and time |
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*------------------------------------------------------------------------ |
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*/ |
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shellcmd xsh_kill(int nargs, char *args[]) { |
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int32 retval; /* return value */ |
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pid32 pid; /* ID of process to kill */ |
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char ch; /* next character of argument */ |
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char *chptr; /* walks along argument string */ |
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/* Check argument count */ |
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if (nargs != 2) { |
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return SYSERR; |
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} |
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/* compute process ID from argument string */ |
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chptr = args[1]; |
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ch = *chptr++; |
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pid = 0; |
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while(ch != NULLCH) { |
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if ( (ch < '0') || (ch > '9') ) { |
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return 1; |
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} |
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pid = 10*pid + (ch - '0'); |
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ch = *chptr++; |
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} |
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if (pid == 0) { |
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return 1; |
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} |
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retval = kill(pid); |
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if (retval == SYSERR) { |
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//fprintf(stderr, "%s: cannot kill process %d\n",
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// args[0], pid);
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return 1; |
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} |
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return 0; |
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} |
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@ -0,0 +1,47 @@
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/* xsh_uptime.c - xsh_uptime */ |
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#include <xinu.h> |
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#include <stdio.h> |
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#include <string.h> |
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/*------------------------------------------------------------------------
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* xsh_uptime - shell to print the time the system has been up |
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*------------------------------------------------------------------------ |
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*/ |
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shellcmd xsh_uptime(int nargs, char *args[]) |
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{ |
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long days, hrs, mins, secs; /* days, hours, minutes, and */ |
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/* seconds since system boot */ |
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long secperday = 86400; /* seconds in a day */ |
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long secperhr = 3600; /* seconds in an hour */ |
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long secpermin = 60; /* seconds in a minute */
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/* Check for valid number of arguments */ |
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if (nargs > 1) { |
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return 1; |
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} |
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secs = clktime; /* total seconds since boot */ |
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/* subtract number of whole days */ |
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days = secs/secperday; |
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secs -= days*secperday; |
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/* subtract number of hours */ |
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hrs = secs/secperhr; |
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secs -= hrs*secperhr; |
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/* subtract number of minutes */ |
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mins = secs/secpermin; |
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secs -= mins*secpermin; |
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printf(" %d day(s) &", days); |
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printf(" %dh:", hrs); |
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printf("%dm:", mins); |
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printf("%ds\n", secs); |
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return 0; |
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} |
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