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Limit the number of simultaneously connected devices to BluetoothSerial to only one #2061

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Merged
merged 1 commit into from
Nov 19, 2018
Merged

Limit the number of simultaneously connected devices to BluetoothSerial to only one #2061

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14 changes: 12 additions & 2 deletions libraries/BluetoothSerial/src/BluetoothSerial.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -50,6 +50,7 @@ static xQueueHandle _spp_tx_queue = NULL;
static SemaphoreHandle_t _spp_tx_done = NULL;
static TaskHandle_t _spp_task_handle = NULL;
static EventGroupHandle_t _spp_event_group = NULL;
static boolean secondConnectionAttempt;

#define SPP_RUNNING 0x01
#define SPP_CONNECTED 0x02
Expand Down Expand Up @@ -162,13 +163,22 @@ static void esp_spp_cb(esp_spp_cb_event_t event, esp_spp_cb_param_t *param)
break;

case ESP_SPP_SRV_OPEN_EVT://Server connection open
_spp_client = param->open.handle;
if (!_spp_client){
_spp_client = param->open.handle;
} else {
secondConnectionAttempt = true;
esp_spp_disconnect(param->open.handle);
}
xEventGroupSetBits(_spp_event_group, SPP_CONNECTED);
log_i("ESP_SPP_SRV_OPEN_EVT");
break;

case ESP_SPP_CLOSE_EVT://Client connection closed
_spp_client = 0;
if(secondConnectionAttempt) {
secondConnectionAttempt = false;
} else {
_spp_client = 0;
}
xEventGroupClearBits(_spp_event_group, SPP_CONNECTED);
log_i("ESP_SPP_CLOSE_EVT");
break;
Expand Down