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