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