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#include <assert.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;
uint32_t ns;
};
static const struct example examples[] = {
{
{
42,
100
},
1
},
{
{
42,
100
},
2 * NSEC_MAX
},
{
{
42,
NSEC_MAX
},
NSEC_MAX
},
{
{
TIME_MAX - 1,
1000
},
2 * NSEC_MAX
}
};
static inline int test_timespec_add_ns(const struct example *example)
{
struct timespec ts = {
.tv_sec = example->ts.tv_sec,
.tv_nsec = example->ts.tv_nsec
};
const uint32_t ns = example->ns;
if (ts.tv_sec < 0) {
ts.tv_sec = ~ts.tv_sec;
}
if (ts.tv_nsec < 0) {
ts.tv_nsec = ~ts.tv_nsec;
}
ts.tv_nsec %= NSEC_MAX + 1;
const struct timespec actual = timespec_add_ns(ts, ns);
dword_t nanos =
(dword_t)ts.tv_sec * (NSEC_MAX + 1) + ts.tv_nsec;
if (ns > NSEC_MAX) {
nanos += NSEC_MAX + 1;
} else {
nanos += ns;
}
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_ns, examples)
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