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examples: simplify att_read_callback for le_couner and spp_and_le_counter again

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This commit is contained in:
Matthias Ringwald 2016-05-10 12:25:25 +02:00
parent 7b6395ea58
commit ea0565ceb1
2 changed files with 8 additions and 14 deletions
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11
example/le_counter.c
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@ -192,18 +192,15 @@ static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *pack
// - if buffer != NULL, copy data and return number bytes copied
// @param offset defines start of attribute value
static uint16_t att_read_callback(hci_con_handle_t connection_handle, uint16_t att_handle, uint16_t offset, uint8_t * buffer, uint16_t buffer_size){
uint16_t size = 0;
if (att_handle == ATT_CHARACTERISTIC_0000FF11_0000_1000_8000_00805F9B34FB_01_VALUE_HANDLE){
if (buffer){
// size is bound by actual value chunk and provided buffer
size = btstack_min(counter_string_len - offset, buffer_size);
memcpy(buffer, &counter_string[offset], size);
memcpy(buffer, &counter_string[offset], buffer_size);
return buffer_size;
} else {
// size is only bound by actual value chunk
size = counter_string_len - offset;
return counter_string_len;
}
}
return size;
return 0;
}
/* LISTING_END */

11
example/spp_and_le_counter.c
View File

@ -176,18 +176,15 @@ static void packet_handler (uint8_t packet_type, uint16_t channel, uint8_t *pack
// - if buffer != NULL, copy data and return number bytes copied
// @param offset defines start of attribute value
static uint16_t att_read_callback(hci_con_handle_t con_handle, uint16_t att_handle, uint16_t offset, uint8_t * buffer, uint16_t buffer_size){
uint16_t size = 0;
if (att_handle == ATT_CHARACTERISTIC_0000FF11_0000_1000_8000_00805F9B34FB_01_VALUE_HANDLE){
if (buffer){
// size is bound by actual value chunk and provided buffer
size = btstack_min(counter_string_len - offset, buffer_size);
memcpy(buffer, &counter_string[offset], size);
memcpy(buffer, &counter_string[offset], buffer_size);
return buffer_size;
} else {
// size is only bound by actual value chunk
size = counter_string_len - offset;
return counter_string_len;
}
}
return size;
return 0;
}
// write requests