[BREAKING]- Refactor client

* General code cleanup and rename variables to use a consistent style.
* Removes the disconnect timer and will use the BLE_GAP_EVENT_TERM_FAILURE event to handle failed disconnects.
* `NimBLEClient::getConnId` has been renamed to `getConnHandle` to be consistent with bluetooth terminology.
* `NimBLEClient::disconnect` now returns a `bool = true on success` instead of an int to be consistent with the rest of the library.
* `NimBLEClient::setPeerAddress` now returns a bool, true on success.
* `NimBLEClientCallbacks::onConfirmPIN` renamed to `NimBLEClientCallbacks::onConfirmPasskey` to be consistent with bluetooth terminology.
* `NimBLEClient::setDataLen` now returns bool, true if successful.
* `NimBLEClient::updateConnParams` now returns bool, true if successful.
* `NimBLEClient::getServices` now returns a const reference to std::vector<NimBLERemoteService*> instead of a pointer to the internal vector.

Author: h2zero

docs/Migration_guide.md

@@ -383,7 +383,7 @@ The security callback methods are now incorporated in the `NimBLEServerCallbacks
 
 The callback methods are:
 
-> `bool onConfirmPIN(NimBLEConnInfo& connInfo, uint32_t pin)`
+> `bool onConfirmPasskey(NimBLEConnInfo& connInfo, uint32_t pin)`
 
 Receives the pin when using numeric comparison authentication.
 Call `NimBLEDevice::injectConfirmPIN(connInfo, true);` to accept or `NimBLEDevice::injectConfirmPIN(connInfo, false);` to reject.

examples/Advanced/NimBLE_Client/main/main.cpp

@@ -47,7 +47,7 @@ class ClientCallbacks : public NimBLEClientCallbacks {
         NimBLEDevice::injectPassKey(connInfo, 123456);
     };
 
-    void onConfirmPIN(NimBLEConnInfo& connInfo, uint32_t pass_key){
+    void onConfirmPasskey(NimBLEConnInfo& connInfo, uint32_t pass_key){
         printf("The passkey YES/NO number: %" PRIu32 "\n", pass_key);
         /** Inject false if passkeys don't match. */
         NimBLEDevice::injectConfirmPasskey(connInfo, true);

examples/Advanced/NimBLE_Server/main/main.cpp

@@ -52,7 +52,7 @@ class ServerCallbacks: public NimBLEServerCallbacks {
         return 123456;
     };
 
-    void onConfirmPIN(NimBLEConnInfo& connInfo, uint32_t pass_key){
+    void onConfirmasskeyN(NimBLEConnInfo& connInfo, uint32_t pass_key){
         printf("The passkey YES/NO number: %" PRIu32 "\n", pass_key);
         /** Inject false if passkeys don't match. */
         NimBLEDevice::injectConfirmPasskey(connInfo, true);

examples/basic/BLE_client/main/main.cpp

@@ -59,7 +59,7 @@ class MyClientCallback : public BLEClientCallbacks {
       NimBLEDevice::injectPassKey(connInfo, 123456);
   };
 
-  void onConfirmPIN(NimBLEConnInfo& connInfo, uint32_t pass_key){
+  void onConfirmPasskey(NimBLEConnInfo& connInfo, uint32_t pass_key){
       printf("The passkey YES/NO number: %" PRIu32 "\n", pass_key);
       /** Inject false if passkeys don't match. */
       NimBLEDevice::injectConfirmPasskey(connInfo, true);

examples/basic/BLE_notify/main/main.cpp

@@ -65,7 +65,7 @@ class MyServerCallbacks: public BLEServerCallbacks {
         return 123456;
     };
 
-    void onConfirmPIN(NimBLEConnInfo& connInfo, uint32_t pass_key){
+    void onConfirmPasskey(NimBLEConnInfo& connInfo, uint32_t pass_key){
         printf("The passkey YES/NO number: %" PRIu32 "\n", pass_key);
         /** Inject false if passkeys don't match. */
         NimBLEDevice::injectConfirmPasskey(connInfo, true);

examples/basic/BLE_uart/main/main.cpp

@@ -67,7 +67,7 @@ class MyServerCallbacks: public BLEServerCallbacks {
         return 123456;
     };
 
-    void onConfirmPIN(NimBLEConnInfo& connInfo, uint32_t pass_key){
+    void onConfirmPasskey(NimBLEConnInfo& connInfo, uint32_t pass_key){
         printf("The passkey YES/NO number: %" PRIu32 "\n", pass_key);
         /** Inject false if passkeys don't match. */
         NimBLEDevice::injectConfirmPasskey(connInfo, true);