Restructure app_webrtc.c to move out signaling to separate file

Author: vikramdattu

esp_port/components/esp_webrtc_utils/src/flash_wrapper.c

@@ -53,6 +53,7 @@ typedef struct {
             size_t size;
             size_t offset;
             size_t* size_result;  // Pointer to store size result for GET_SIZE operation
+            bool* exists_result;  // Pointer to store exists result for EXISTS operation
             struct stat stat_info;
         } file;
         struct {
@@ -353,8 +354,14 @@ static esp_err_t do_file_op(flash_op_t *op)
             if (f) {
                 fclose(f);
                 op->result = ESP_OK;
+                if (op->op.file.exists_result != NULL) {
+                    *op->op.file.exists_result = true;
+                }
             } else {
                 op->result = ESP_ERR_NOT_FOUND;
+                if (op->op.file.exists_result != NULL) {
+                    *op->op.file.exists_result = false;
+                }
             }
             break;
 
@@ -527,12 +534,11 @@ esp_err_t flash_wrapper_write(const char* path, const void* buf, size_t size)
 esp_err_t flash_wrapper_exists(const char* path, bool* exists)
 {
     flash_op_t op = {
-        .op_type = FLASH_OP_EXISTS
+        .op_type = FLASH_OP_EXISTS,
+        .op.file.exists_result = exists
     };
     strncpy(op.op.file.path, path, sizeof(op.op.file.path) - 1);
-    esp_err_t ret = submit_flash_op(&op);
-    *exists = (ret == ESP_OK);
-    return ESP_OK;
+    return submit_flash_op(&op);
 }
 
 esp_err_t flash_wrapper_stat(const char* path, struct stat* st)

esp_port/components/kvs_utils/CMakeLists.txt

@@ -45,5 +45,5 @@ idf_component_register(
     INCLUDE_DIRS
         "./include"
         "./src"
-    REQUIRES esp_system heap pthread esp_webrtc_utils
+    REQUIRES esp_system heap pthread
 )

esp_port/components/kvs_webrtc/CMakeLists.txt

@@ -86,6 +86,7 @@ idf_component_register(
     SRCS "${kvs_webrtc_srcs}"
         "${CMAKE_CURRENT_SOURCE_DIR}/src/WebRtcLogging.c"
         "${CMAKE_CURRENT_SOURCE_DIR}/src/app_webrtc.c"
+        "${CMAKE_CURRENT_SOURCE_DIR}/src/kvs_signaling.c"
 
     INCLUDE_DIRS "${kvs_webrtc_include_dirs}"
         "${CMAKE_CURRENT_SOURCE_DIR}/include"

esp_port/components/kvs_webrtc/idf_component.yml

@@ -39,5 +39,10 @@ dependencies:
     version: "*"
     public: true
 
+  webrtc_bridge:
+    path: ../webrtc_bridge
+    version: "*"
+    public: true
+
   espressif/esp_websocket_client:
     version: "*"