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Add support for creating a NimBLEClient from a NimBLEServer peer.

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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
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56
src/NimBLEClient.cpp
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@@ -551,62 +551,6 @@ uint16_t NimBLEClient::getConnHandle() const {
return m_connHandle;
} // getConnHandle
/**
* @brief Clear the connection information for this client.
* @note This is designed to be used to reset the connection information after
* calling setConnection(), and should not be used to disconnect from a peer.
* To disconnect from a peer, use disconnect().
*/
void NimBLEClient::clearConnection() {
m_connHandle = BLE_HS_CONN_HANDLE_NONE;
m_peerAddress = NimBLEAddress{};
} // clearConnection
/**
* @brief Set the connection information for this client.
* @param [in] connInfo The connection information.
* @return True on success.
* @note Sets the connection established flag to true.
* @note If the client is already connected to a peer, this will return false.
* @note This is designed to be used when a connection is made outside of the
* NimBLEClient class, such as when a connection is made by the
* NimBLEServer class and the client is passed the connection info.
* This enables the GATT Server to read the attributes of the client connected to it.
*/
bool NimBLEClient::setConnection(const NimBLEConnInfo& connInfo) {
if (isConnected()) {
NIMBLE_LOGE(LOG_TAG, "Already connected");
return false;
}
m_peerAddress = connInfo.getAddress();
m_connHandle = connInfo.getConnHandle();
return true;
} // setConnection
/**
* @brief Set the connection information for this client.
* @param [in] connHandle The connection handle.
* @note Sets the connection established flag to true.
* @note This is designed to be used when a connection is made outside of the
* NimBLEClient class, such as when a connection is made by the
* NimBLEServer class and the client is passed the connection handle.
* This enables the GATT Server to read the attributes of the client connected to it.
* @note If the client is already connected to a peer, this will return false.
* @note This will look up the peer address using the connection handle.
*/
bool NimBLEClient::setConnection(uint16_t connHandle) {
// we weren't provided the peer address, look it up using ble_gap_conn_find
NimBLEConnInfo connInfo;
int rc = ble_gap_conn_find(connHandle, &connInfo.m_desc);
if (rc != 0) {
NIMBLE_LOGE(LOG_TAG, "Connection info not found");
return false;
}
return setConnection(connInfo);
} // setConnection
/**
* @brief Retrieve the address of the peer.
* @return A NimBLEAddress instance with the peer address data.