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102 lines
1.5 KiB
102 lines
1.5 KiB
#include <assert.h>
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#include <ck_limits.h>
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#include <ck_stdint.h>
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#include "../../../src/ck_ec_timeutil.h"
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#include "fuzz_harness.h"
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#if ULONG_MAX > 4294967295
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typedef unsigned __int128 dword_t;
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#else
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typedef uint64_t dword_t;
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#endif
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struct example {
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struct timespec ts;
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struct timespec inc;
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};
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static const struct example examples[] = {
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{
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{
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42,
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100
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},
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{
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1,
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2
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}
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},
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{
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{
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42,
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100
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},
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{
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1,
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NSEC_MAX
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}
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},
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{
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{
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42,
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NSEC_MAX
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},
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{
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0,
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NSEC_MAX
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}
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},
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{
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{
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TIME_MAX - 1,
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1000
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},
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{
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2,
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NSEC_MAX
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}
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}
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};
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static struct timespec normalize_ts(const struct timespec ts)
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{
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struct timespec ret = ts;
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if (ret.tv_sec < 0) {
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ret.tv_sec = ~ret.tv_sec;
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}
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if (ret.tv_nsec < 0) {
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ret.tv_nsec = ~ret.tv_nsec;
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}
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ret.tv_nsec %= NSEC_MAX + 1;
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return ret;
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}
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static dword_t ts_to_nanos(const struct timespec ts)
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{
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return (dword_t)ts.tv_sec * (NSEC_MAX + 1) + ts.tv_nsec;
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}
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static inline int test_timespec_add(const struct example *example)
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{
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const struct timespec ts = normalize_ts(example->ts);
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const struct timespec inc = normalize_ts(example->inc);
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const struct timespec actual = timespec_add(ts, inc);
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const dword_t nanos = ts_to_nanos(ts) + ts_to_nanos(inc);
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if (nanos / (NSEC_MAX + 1) > TIME_MAX) {
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assert(actual.tv_sec == TIME_MAX);
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assert(actual.tv_nsec == NSEC_MAX);
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} else {
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assert(actual.tv_sec == (time_t)(nanos / (NSEC_MAX + 1)));
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assert(actual.tv_nsec == (long)(nanos % (NSEC_MAX + 1)));
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}
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return 0;
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}
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TEST(test_timespec_add, examples)
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