/*
* __wt_global_once --
* Global initialization, run once.
*/
static void
__wt_global_once(void)
{
WT_DECL_RET;
if ((ret = __system_is_little_endian()) != 0) {
__wt_pthread_once_failed = ret;
return;
}
if ((ret =
__wt_spin_init(NULL, &__wt_process.spinlock, "global")) != 0) {
__wt_pthread_once_failed = ret;
return;
}
__wt_cksum_init();
TAILQ_INIT(&__wt_process.connqh);
#ifdef HAVE_DIAGNOSTIC
/* Verify the pre-computed metadata hash. */
WT_ASSERT(NULL, WT_METAFILE_NAME_HASH ==
__wt_hash_city64(WT_METAFILE_URI, strlen(WT_METAFILE_URI)));
/* Load debugging code the compiler might optimize out. */
(void)__wt_breakpoint();
#endif
}
/*
* __wt_global_once --
* Global initialization, run once.
*/
static void
__wt_global_once(void)
{
WT_DECL_RET;
if ((ret = __system_is_little_endian()) != 0) {
__wt_pthread_once_failed = ret;
return;
}
if ((ret =
__wt_spin_init(NULL, &__wt_process.spinlock, "global")) != 0) {
__wt_pthread_once_failed = ret;
return;
}
__wt_cksum_init();
TAILQ_INIT(&__wt_process.connqh);
#ifdef HAVE_DIAGNOSTIC
/* Load debugging code the compiler might optimize out. */
(void)__wt_breakpoint();
#endif
}
int
main(void)
{
WT_RAND_STATE rnd;
size_t len;
uint32_t hw, sw;
u_int i, j;
uint8_t *data;
/* Allocate aligned memory for the data. */
data = dcalloc(DATASIZE, sizeof(uint8_t));
/* Initialize the RNG. */
testutil_check(__wt_random_init_seed(NULL, &rnd));
/* Initialize the WiredTiger library checksum functions. */
__wt_cksum_init();
/*
* Some simple known checksums.
*/
len = 1;
hw = __wt_cksum(data, len);
check(hw, (uint32_t)0x527d5351, len, "nul x1: hardware");
sw = cksum_sw(data, len);
check(sw, (uint32_t)0x527d5351, len, "nul x1: software");
len = 2;
hw = __wt_cksum(data, len);
check(hw, (uint32_t)0xf16177d2, len, "nul x2: hardware");
sw = cksum_sw(data, len);
check(sw, (uint32_t)0xf16177d2, len, "nul x2: software");
len = 3;
hw = __wt_cksum(data, len);
check(hw, (uint32_t)0x6064a37a, len, "nul x3: hardware");
sw = cksum_sw(data, len);
check(sw, (uint32_t)0x6064a37a, len, "nul x3: software");
len = 4;
hw = __wt_cksum(data, len);
check(hw, (uint32_t)0x48674bc7, len, "nul x4: hardware");
sw = cksum_sw(data, len);
check(sw, (uint32_t)0x48674bc7, len, "nul x4: software");
len = strlen("123456789");
memcpy(data, "123456789", len);
hw = __wt_cksum(data, len);
check(hw, (uint32_t)0xe3069283, len, "known string #1: hardware");
sw = cksum_sw(data, len);
check(sw, (uint32_t)0xe3069283, len, "known string #1: software");
len = strlen("The quick brown fox jumps over the lazy dog");
memcpy(data, "The quick brown fox jumps over the lazy dog", len);
hw = __wt_cksum(data, len);
check(hw, (uint32_t)0x22620404, len, "known string #2: hardware");
sw = cksum_sw(data, len);
check(sw, (uint32_t)0x22620404, len, "known string #2: software");
/*
* Checksums of power-of-two data chunks.
*/
for (i = 0, len = 512; i < 1000; ++i) {
for (j = 0; j < len; ++j)
data[j] = __wt_random(&rnd) & 0xff;
hw = __wt_cksum(data, len);
sw = cksum_sw(data, len);
check(hw, sw, len, "random power-of-two");
len *= 2;
if (len > DATASIZE)
len = 512;
}
/*
* Checksums of random data chunks.
*/
for (i = 0; i < 1000; ++i) {
len = __wt_random(&rnd) % DATASIZE;
for (j = 0; j < len; ++j)
data[j] = __wt_random(&rnd) & 0xff;
hw = __wt_cksum(data, len);
sw = cksum_sw(data, len);
check(hw, sw, len, "random");
}
free(data);
return (EXIT_SUCCESS);
}
