arduino-esp32/libraries/BLE/src/BLEServer.h
James.Y 35d9759fa6
Fix for issue 3974 m_connectedCount incorrectly decremented when no connection exists
There is no need to decrement if nothing was removed from removePeerDevice

Reference issue:
#3974
2020-06-01 01:35:01 +03:00

142 lines
4.5 KiB
C++

/*
* BLEServer.h
*
* Created on: Apr 16, 2017
* Author: kolban
*/
#ifndef COMPONENTS_CPP_UTILS_BLESERVER_H_
#define COMPONENTS_CPP_UTILS_BLESERVER_H_
#include "sdkconfig.h"
#if defined(CONFIG_BT_ENABLED)
#include <esp_gatts_api.h>
#include <string>
#include <string.h>
// #include "BLEDevice.h"
#include "BLEUUID.h"
#include "BLEAdvertising.h"
#include "BLECharacteristic.h"
#include "BLEService.h"
#include "BLESecurity.h"
#include "FreeRTOS.h"
#include "BLEAddress.h"
class BLEServerCallbacks;
/* TODO possibly refactor this struct */
typedef struct {
void *peer_device; // peer device BLEClient or BLEServer - maybe its better to have 2 structures or union here
bool connected; // do we need it?
uint16_t mtu; // every peer device negotiate own mtu
} conn_status_t;
/**
* @brief A data structure that manages the %BLE servers owned by a BLE server.
*/
class BLEServiceMap {
public:
BLEService* getByHandle(uint16_t handle);
BLEService* getByUUID(const char* uuid);
BLEService* getByUUID(BLEUUID uuid, uint8_t inst_id = 0);
void handleGATTServerEvent(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t* param);
void setByHandle(uint16_t handle, BLEService* service);
void setByUUID(const char* uuid, BLEService* service);
void setByUUID(BLEUUID uuid, BLEService* service);
std::string toString();
BLEService* getFirst();
BLEService* getNext();
void removeService(BLEService *service);
int getRegisteredServiceCount();
private:
std::map<uint16_t, BLEService*> m_handleMap;
std::map<BLEService*, std::string> m_uuidMap;
std::map<BLEService*, std::string>::iterator m_iterator;
};
/**
* @brief The model of a %BLE server.
*/
class BLEServer {
public:
uint32_t getConnectedCount();
BLEService* createService(const char* uuid);
BLEService* createService(BLEUUID uuid, uint32_t numHandles=15, uint8_t inst_id=0);
BLEAdvertising* getAdvertising();
void setCallbacks(BLEServerCallbacks* pCallbacks);
void startAdvertising();
void removeService(BLEService* service);
BLEService* getServiceByUUID(const char* uuid);
BLEService* getServiceByUUID(BLEUUID uuid);
bool connect(BLEAddress address);
void disconnect(uint16_t connId);
uint16_t m_appId;
void updateConnParams(esp_bd_addr_t remote_bda, uint16_t minInterval, uint16_t maxInterval, uint16_t latency, uint16_t timeout);
/* multi connection support */
std::map<uint16_t, conn_status_t> getPeerDevices(bool client);
void addPeerDevice(void* peer, bool is_client, uint16_t conn_id);
bool removePeerDevice(uint16_t conn_id, bool client);
BLEServer* getServerByConnId(uint16_t conn_id);
void updatePeerMTU(uint16_t connId, uint16_t mtu);
uint16_t getPeerMTU(uint16_t conn_id);
uint16_t getConnId();
private:
BLEServer();
friend class BLEService;
friend class BLECharacteristic;
friend class BLEDevice;
esp_ble_adv_data_t m_adv_data;
// BLEAdvertising m_bleAdvertising;
uint16_t m_connId;
uint32_t m_connectedCount;
uint16_t m_gatts_if;
std::map<uint16_t, conn_status_t> m_connectedServersMap;
FreeRTOS::Semaphore m_semaphoreRegisterAppEvt = FreeRTOS::Semaphore("RegisterAppEvt");
FreeRTOS::Semaphore m_semaphoreCreateEvt = FreeRTOS::Semaphore("CreateEvt");
FreeRTOS::Semaphore m_semaphoreOpenEvt = FreeRTOS::Semaphore("OpenEvt");
BLEServiceMap m_serviceMap;
BLEServerCallbacks* m_pServerCallbacks = nullptr;
void createApp(uint16_t appId);
uint16_t getGattsIf();
void handleGATTServerEvent(esp_gatts_cb_event_t event, esp_gatt_if_t gatts_if, esp_ble_gatts_cb_param_t *param);
void registerApp(uint16_t);
}; // BLEServer
/**
* @brief Callbacks associated with the operation of a %BLE server.
*/
class BLEServerCallbacks {
public:
virtual ~BLEServerCallbacks() {};
/**
* @brief Handle a new client connection.
*
* When a new client connects, we are invoked.
*
* @param [in] pServer A reference to the %BLE server that received the client connection.
*/
virtual void onConnect(BLEServer* pServer);
virtual void onConnect(BLEServer* pServer, esp_ble_gatts_cb_param_t *param);
/**
* @brief Handle an existing client disconnection.
*
* When an existing client disconnects, we are invoked.
*
* @param [in] pServer A reference to the %BLE server that received the existing client disconnection.
*/
virtual void onDisconnect(BLEServer* pServer);
}; // BLEServerCallbacks
#endif /* CONFIG_BT_ENABLED */
#endif /* COMPONENTS_CPP_UTILS_BLESERVER_H_ */