mirror of
https://github.com/9fans/plan9port.git
synced 2025-01-12 11:10:07 +00:00
104 lines
1.6 KiB
C
104 lines
1.6 KiB
C
#include <u.h>
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#include <libc.h>
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char output[4096];
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void add(char*, ...);
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void error(char*);
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void notifyf(void*, char*);
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void
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main(int argc, char *argv[])
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{
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int i;
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Waitmsg *w;
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vlong t0, t1;
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long l;
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char *p;
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char err[ERRMAX];
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if(argc <= 1){
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fprint(2, "usage: time command\n");
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exits("usage");
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}
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t0 = nsec();
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switch(fork()){
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case -1:
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error("fork");
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case 0:
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exec(argv[1], &argv[1]);
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if(argv[1][0] != '/' && strncmp(argv[1], "./", 2) &&
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strncmp(argv[1], "../", 3)){
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sprint(output, "/bin/%s", argv[1]);
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exec(output, &argv[1]);
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}
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error(argv[1]);
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}
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notify(notifyf);
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loop:
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w = wait();
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t1 = nsec();
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if(w == nil){
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rerrstr(err, sizeof err);
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if(strcmp(err, "interrupted") == 0)
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goto loop;
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error("wait");
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}
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l = w->time[0];
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add("%ld.%.2ldu", l/1000, (l%1000)/10);
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l = w->time[1];
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add("%ld.%.2lds", l/1000, (l%1000)/10);
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l = (t1-t0)/1000000;
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add("%ld.%.2ldr", l/1000, (l%1000)/10);
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add("\t");
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for(i=1; i<argc; i++){
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add("%s", argv[i], 0);
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if(i>4){
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add("...");
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break;
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}
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}
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if(w->msg[0]){
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p = utfrune(w->msg, ':');
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if(p && p[1])
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p++;
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else
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p = w->msg;
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add(" # status=%s", p);
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}
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fprint(2, "%s\n", output);
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exits(w->msg);
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}
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void
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add(char *a, ...)
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{
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static int beenhere=0;
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va_list arg;
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if(beenhere)
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strcat(output, " ");
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va_start(arg, a);
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vseprint(output+strlen(output), output+sizeof(output), a, arg);
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va_end(arg);
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beenhere++;
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}
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void
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error(char *s)
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{
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fprint(2, "time: %s: %r\n", s);
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exits(s);
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}
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void
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notifyf(void *a, char *s)
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{
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USED(a);
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if(strcmp(s, "interrupt") == 0)
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noted(NCONT);
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noted(NDFLT);
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}
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