From 561d1cba1b3802da2dd70fb93a8d25b6985a36a9 Mon Sep 17 00:00:00 2001
From: "isha.pardikar@espressif.com" <isha.pardikar@espressif.com>
Date: Wed, 19 Oct 2022 15:23:21 +0530
Subject: [PATCH] NimBLE : Init deinit nimble stack in a loop

---
 .../nimble/blecent/main/Kconfig.projbuild     |  6 +++
 examples/bluetooth/nimble/blecent/main/main.c | 37 +++++++++++++++++++
 2 files changed, 43 insertions(+)

diff --git a/examples/bluetooth/nimble/blecent/main/Kconfig.projbuild b/examples/bluetooth/nimble/blecent/main/Kconfig.projbuild
index 932c796848..411d97254b 100644
--- a/examples/bluetooth/nimble/blecent/main/Kconfig.projbuild
+++ b/examples/bluetooth/nimble/blecent/main/Kconfig.projbuild
@@ -12,4 +12,10 @@ menu "Example Configuration"
         prompt "Enable Extended Adv"
         help
             Use this option to enable extended advertising in the example
+
+    config EXAMPLE_INIT_DEINIT_LOOP
+        bool
+        prompt "Perform init deinit of nimble stack in a loop"
+        help
+            Enable this flag, to perform only stack Init and Deinit in a loop.
 endmenu
diff --git a/examples/bluetooth/nimble/blecent/main/main.c b/examples/bluetooth/nimble/blecent/main/main.c
index c1afc07bea..8e4efe6095 100644
--- a/examples/bluetooth/nimble/blecent/main/main.c
+++ b/examples/bluetooth/nimble/blecent/main/main.c
@@ -577,8 +577,10 @@ blecent_on_sync(void)
     rc = ble_hs_util_ensure_addr(0);
     assert(rc == 0);
 
+#if !CONFIG_EXAMPLE_INIT_DEINIT_LOOP
     /* Begin scanning for a peripheral to connect to. */
     blecent_scan();
+#endif
 }
 
 void blecent_host_task(void *param)
@@ -590,6 +592,37 @@ void blecent_host_task(void *param)
     nimble_port_freertos_deinit();
 }
 
+#if CONFIG_EXAMPLE_INIT_DEINIT_LOOP
+/* This function showcases stack init and deinit procedure. */
+static void stack_init_deinit(void)
+{
+    int rc;
+    while(1) {
+
+        vTaskDelay(1000);
+
+        ESP_LOGI(tag, "Deinit host");
+
+        rc = nimble_port_stop();
+        if (rc == 0) {
+            nimble_port_deinit();
+        } else {
+            ESP_LOGI(tag, "Nimble port stop failed, rc = %d", rc);
+            break;
+        }
+
+        vTaskDelay(1000);
+
+        ESP_LOGI(tag, "Init host");
+
+        nimble_port_init();
+        nimble_port_freertos_init(blecent_host_task);
+
+        ESP_LOGI(tag, "Waiting for 1 second");
+    }
+}
+#endif
+
 void
 app_main(void)
 {
@@ -621,4 +654,8 @@ app_main(void)
 
     nimble_port_freertos_init(blecent_host_task);
 
+#if CONFIG_EXAMPLE_INIT_DEINIT_LOOP
+    stack_init_deinit();
+#endif
+
 }