mirror of
https://github.com/fluencelabs/musl
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21 lines
646 B
C
21 lines
646 B
C
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#include <sys/resource.h>
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#include <string.h>
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#include "syscall.h"
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/* this is a huge hack to make up for the kernel's stupid 32bit time_t
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* without having to recopy the whole rusage structure ourselves.. */
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int getrusage(int who, struct rusage *ru)
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{
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struct { long tv_sec, tv_usec; } ktv[2];
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char *fakeaddr = ((char *)ru + sizeof(struct timeval [2]) - sizeof ktv);
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if (syscall2(__NR_getrusage, who, (long)fakeaddr) < 0)
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return -1;
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memcpy(ktv, fakeaddr, sizeof ktv);
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ru->ru_utime.tv_sec = ktv[0].tv_sec;
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ru->ru_utime.tv_usec = ktv[0].tv_usec;
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ru->ru_stime.tv_sec = ktv[1].tv_sec;
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ru->ru_stime.tv_usec = ktv[1].tv_usec;
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return 0;
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}
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