52 lines
730 B
C
52 lines
730 B
C
#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <sys/times.h>
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#include <unistd.h>
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#include <errno.h>
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#include <string.h>
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#include <stdlib.h>
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static
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char*
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skip(char *p)
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{
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while(*p == ' ')
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p++;
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while(*p != ' ' && *p != 0)
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p++;
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return p;
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}
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clock_t
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times(struct tms *buf)
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{
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char b[200], *p;
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int f;
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unsigned long r;
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memset(b, 0, sizeof(b));
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f = open("/dev/cputime", O_RDONLY);
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if(f >= 0) {
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lseek(f, SEEK_SET, 0);
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read(f, b, sizeof(b));
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close(f);
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}
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p = b;
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if(buf)
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buf->tms_utime = atol(p);
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p = skip(p);
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if(buf)
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buf->tms_stime = atol(p);
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p = skip(p);
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r = atol(p);
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if(buf){
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p = skip(p);
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buf->tms_cutime = atol(p);
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p = skip(p);
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buf->tms_cstime = atol(p);
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}
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return r;
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}
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