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Matheus
35 lines
616 B
C
35 lines
616 B
C
#include <kernel/syscalls.h>
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#include <time.h>
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#include <kernel/usercopy.h>
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#define CLOCK_REALTIME 0
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#define CLOCK_MONOTONIC 1
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#define CLOCK_BOOTTIME 7
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syscallret_t syscall_clock_getres(context_t *, int clockid, timespec_t *res) {
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syscallret_t ret;
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switch (clockid) {
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case CLOCK_REALTIME:
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case CLOCK_MONOTONIC:
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case CLOCK_BOOTTIME:
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if (res) {
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timespec_t ts = {
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.s = 0,
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.ns = 1
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};
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ret.errno = usercopy_touser(res, &ts, sizeof(timespec_t));
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} else {
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ret.errno = 0;
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}
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break;
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default:
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ret.errno = EINVAL;
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break;
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}
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ret.ret = ret.errno ? -1 : 0;
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return ret;
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}
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