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calculate chunk size when needed and use reported packet length

pull/13449/head
Paul Szczeanek 2020-08-19 12:22:27 +01:00
parent 8c5bbe05fe
commit 6aa89aefcc
1 changed files with 5 additions and 8 deletions
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13
connectivity/FEATURE_BLE/libraries/ble-api-implementation/source/GattClientImpl.cpp
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@ -640,10 +640,9 @@ struct GattClient::WriteControlBlock : public ProcedureControlBlock {
connection_handle_t connection_handle,
uint16_t attribute_handle,
uint8_t* data,
uint16_t write_length,
uint16_t chunk_size
uint16_t write_length
) : ProcedureControlBlock(WRITE_PROCEDURE, connection_handle),
attribute_handle(attribute_handle), write_length(write_length), chunk_size(chunk_size), offset(0), data(data),
attribute_handle(attribute_handle), write_length(write_length), offset(0), data(data),
prepare_success(false), status(BLE_ERROR_INITIALIZATION_INCOMPLETE), error_code(0xFF) {
}
@ -725,10 +724,10 @@ struct GattClient::WriteControlBlock : public ProcedureControlBlock {
void handle_prepare_write_response(GattClient* client, const AttPrepareWriteResponse& write_response) {
ble_error_t err = BLE_ERROR_UNSPECIFIED;
uint16_t mtu_size = client->get_mtu(connection_handle);
offset += chunk_size;
offset += write_response.partial_value.size();
uint16_t data_left = write_length - offset; /* offset is guaranteed to be less of equal to write_length */
if (data_left) {
uint16_t chunk_size = client->get_mtu(connection_handle) - PREPARE_WRITE_HEADER_LENGTH;
if (chunk_size > data_left) {
chunk_size = data_left;
}
@ -836,7 +835,6 @@ struct GattClient::WriteControlBlock : public ProcedureControlBlock {
uint16_t attribute_handle;
uint16_t write_length;
uint16_t offset;
uint16_t chunk_size;
uint8_t* data;
bool prepare_success;
ble_error_t status;
@ -1190,8 +1188,7 @@ ble_error_t GattClient::write(
connection_handle,
attribute_handle,
data,
length,
mtu - PREPARE_WRITE_HEADER_LENGTH
length
);
if (write_pcb == nullptr) {