Muldersoft/LibHashSet
Muldersoft/LibHashSet
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Small code refactoring.

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This commit is contained in:
LoRd_MuldeR 2022-11-23 02:03:48 +01:00
parent 0feea09215
commit 8bb56b5a2a
1 changed files with 21 additions and 8 deletions
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29
hashset/src/main.c
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@ -34,21 +34,31 @@
unsigned char __stdcall RtlGenRandom(void *buffer, uint32_t length);
#endif
static INLINE uint64_t random_uint64(void)
typedef struct
{
static size_t offset = SIZE_MAX;
static uint64_t buffer[16U];
size_t offset;
uint64_t buffer[16U];
}
random_t;
if (offset >= ARRAY_SIZE(buffer))
static INLINE void random_init(random_t *const rnd)
{
offset = 0U;
if (getentropy(&buffer, sizeof(buffer)) < 0)
memset(rnd, 0, sizeof(random_t));
rnd->offset = SIZE_MAX;
}
static INLINE uint64_t random_next(random_t *const rnd)
{
if (rnd->offset >= ARRAY_SIZE(rnd->buffer))
{
rnd->offset = 0U;
if (getentropy(rnd->buffer, sizeof(rnd->buffer)) < 0)
{
abort();
}
}
return buffer[offset++];
return rnd->buffer[rnd->offset++];
}
#define PRINT_SET_INFO() do \
@ -186,9 +196,12 @@ static int test_function_2(hash_set_t *const hash_set)
uint8_t spinner = 0U;
clock_t last_update = clock();
random_t random;
random_init(&random);
for (;;)
{
const uint64_t rnd = random_uint64() & UINT64_C(0x3FFFFFFFFFFFFFF);
const uint64_t rnd = random_next(&random) & UINT64_C(0x3FFFFFFFFFFFFFF);
const errno_t error = hash_set_insert(hash_set, rnd);
if (error)
{