h2zero/esp-nimble-cpp
1
0
Fork 1
mirror of https://github.com/h2zero/esp-nimble-cpp.git synced 2026-02-04 14:15:09 +01:00
Code Issues Packages Projects Releases Wiki Activity

Add support for creating a NimBLEClient from a NimBLEServer peer.

Browse Source 
This allows the NimBLEServer instance to create a NimBLEClient instance to read/write form/to a connected peer.
Only one instance is supported subsequent calls will overwrite the previous client connection information and data.
This commit is contained in:
h2zero
2024-12-01 17:08:12 -07:00
committed by h2zero
parent a55489fee2
commit ac3d3575cc
4 changed files with 79 additions and 63 deletions
Download Patch File Download Diff File Expand all files Collapse all files

67
src/NimBLEServer.cpp
View File

@@ -19,6 +19,10 @@
# include "NimBLEDevice.h"
# include "NimBLELog.h"
# if defined(CONFIG_BT_NIMBLE_ROLE_CENTRAL)
# include "NimBLEClient.h"
# endif
# if defined(CONFIG_NIMBLE_CPP_IDF)
# include "services/gap/ble_svc_gap.h"
# include "services/gatt/ble_svc_gatt.h"
@@ -63,6 +67,10 @@ NimBLEServer::~NimBLEServer() {
if (m_deleteCallbacks) {
delete m_pServerCallbacks;
}
if (m_pClient != nullptr) {
delete m_pClient;
}
}
/**
@@ -169,7 +177,7 @@ void NimBLEServer::serviceChanged() {
*/
void NimBLEServer::start() {
if (m_gattsStarted) {
return; //already started
return; // already started
}
int rc = ble_gatts_start();
@@ -497,6 +505,11 @@ int NimBLEServer::handleGapEvent(ble_gap_event* event, void* arg) {
}
}
if (pServer->m_pClient->m_connHandle == event->disconnect.conn.conn_handle) {
// If this was also the client make sure it's flagged as disconnected.
pServer->m_pClient->m_connHandle = BLE_HS_CONN_HANDLE_NONE;
}
if (pServer->m_svcChanged) {
pServer->resetGATT();
}
@@ -705,8 +718,8 @@ int NimBLEServer::handleGattEvent(uint16_t connHandle, uint16_t attrHandle, ble_
NIMBLE_LOGD(LOG_TAG,
"Gatt %s event",
(ctxt->op == BLE_GATT_ACCESS_OP_READ_CHR || ctxt->op == BLE_GATT_ACCESS_OP_READ_DSC) ? "Read" : "Write");
auto pAtt = static_cast<NimBLELocalValueAttribute*>(arg);
auto val = pAtt->getAttVal();
auto pAtt = static_cast<NimBLELocalValueAttribute*>(arg);
auto val = pAtt->getAttVal();
NimBLEConnInfo peerInfo{};
ble_gap_conn_find(connHandle, &peerInfo.m_desc);
@@ -1029,6 +1042,54 @@ void NimBLEServer::setDataLen(uint16_t connHandle, uint16_t octets) const {
# endif
} // setDataLen
# if defined(CONFIG_BT_NIMBLE_ROLE_CENTRAL)
/**
* @brief Create a client instance from the connection handle.
* @param [in] connHandle The connection handle to create a client instance from.
* @return A pointer to the NimBLEClient instance or nullptr if there was an error.
* @note Only one instance is supported subsequent calls will overwrite the previous
* client connection information and data.
*/
NimBLEClient* NimBLEServer::getClient(uint16_t connHandle) {
NimBLEConnInfo connInfo;
int rc = ble_gap_conn_find(connHandle, &connInfo.m_desc);
if (rc != 0) {
NIMBLE_LOGE(LOG_TAG, "Client info not found");
return nullptr;
}
return getClient(connInfo);
} // getClient
/**
* @brief Create a client instance from the NimBLEConnInfo reference.
* @param [in] connInfo The connection info to create a client instance from.
* @return A pointer to the NimBLEClient instance or nullptr if there was an error.
* @note Only one instance is supported subsequent calls will overwrite the previous
* client connection information and data.
*/
NimBLEClient* NimBLEServer::getClient(const NimBLEConnInfo& connInfo) {
if (m_pClient == nullptr) {
m_pClient = new NimBLEClient(connInfo.getAddress());
}
m_pClient->deleteServices(); // Changed peer connection delete the database.
m_pClient->m_peerAddress = connInfo.getAddress();
m_pClient->m_connHandle = connInfo.getConnHandle();
return m_pClient;
} // getClient
/**
* @brief Delete the NimBLEClient instance that was created with `getClient()`
*/
void NimBLEServer::deleteClient() {
if (m_pClient != nullptr) {
delete m_pClient;
m_pClient = nullptr;
}
} // deleteClient
# endif
/** Default callback handlers */
void NimBLEServerCallbacks::onConnect(NimBLEServer* pServer, NimBLEConnInfo& connInfo) {
NIMBLE_LOGD("NimBLEServerCallbacks", "onConnect(): Default");