long
hash_string( char * s )
{
long k;
int block_count;
unsigned char init[16] =
{ 0x3d, 0x38, 0x73, 0xc2, 0xa2, 0x37, 0x1a, 0x0f,
0xa7, 0xec, 0x87, 0x22, 0xc9, 0xb8, 0x57, 0xab
} ;
union
{
long k[4];
unsigned char array[16];
} output;
if (!*s)
block_count = 0;
else
{
block_count = ( (strlen( s ) - 1 ) / 16 ) +1;
if (block_count > 16)
block_count = 16;
}
hash128 (block_count, s, init, output.array);
k = ( output.k[0] ^ output.k[1] ^ output.k[2] ^ output.k[3] );
return k;
}
static void ble_stack_init(void)
{
uint32_t err_code;
ble_gap_conn_sec_mode_t sec_mode;
uint8_t* tstr;
uint8_t cksum;
int i;
// Initialize the SoftDevice handler module.
if(BOARD_CONFIG_VALUE_ENABLE == UICR_board_config_information->LFCLKSRC_EN)
{//user config
SOFTDEVICE_HANDLER_INIT(UICR_board_config_information->LFCLKSRC, false);
}
else
{//default
SOFTDEVICE_HANDLER_INIT(NRF_CLOCK_LFCLKSRC_RC_250_PPM_TEMP_16000MS_CALIBRATION, false);
}
// Enable BLE stack
ble_enable_params_t ble_enable_params;
memset(&ble_enable_params, 0, sizeof(ble_enable_params));
ble_enable_params.gatts_enable_params.service_changed = IS_SRVC_CHANGED_CHARACT_PRESENT;
ble_enable_params.gatts_enable_params.attr_tab_size = 512;
err_code = sd_ble_enable(&ble_enable_params);
APP_ERROR_CHECK(err_code);
// Register with the SoftDevice handler module for BLE events.
err_code = softdevice_ble_evt_handler_set(ble_evt_dispatch);
APP_ERROR_CHECK(err_code);
// Register with the SoftDevice handler module for BLE events.
err_code = softdevice_sys_evt_handler_set(sys_evt_dispatch);
APP_ERROR_CHECK(err_code);
sd_ble_gap_address_get(&base_addr);
hash128(base_addr.addr, 6, device_id);
base_addr.addr_type = BLE_GAP_ADDR_TYPE_RANDOM_STATIC;
tstr = __TIME__;
cksum = 0;
for (i=0; i<strlen(__TIME__); i++) {
cksum += tstr[i];
}
base_addr.addr[0] += cksum;
sd_ble_gap_address_set(BLE_GAP_ADDR_CYCLE_MODE_NONE, &base_addr);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode);
err_code = sd_ble_gap_device_name_set(&sec_mode,
(const uint8_t *)device_name,
strlen(device_name));
APP_ERROR_CHECK(err_code);
}
static uint64_t hash(const CacheItem& data) {
return hash128(&data, sizeof(CacheItem::key));
}