lib: someip-c: Re-wrote test service in C

Re-wrote the test SOME/IP service code in C, rather
than in C++. Tested against fluent-bit binary with
the in-someip plugin enabled.

Signed-off-by: Anthony Payne <[email protected]>

lib/libsomeip-c/example/CMakeLists.txt

@@ -1,3 +1,3 @@
 
-add_executable(someip_test_service test_service.cc)
+add_executable(someip_test_service test_service.c)
 target_link_libraries(someip_test_service PRIVATE someip-c)

lib/libsomeip-c/example/test_service.c

@@ -0,0 +1,133 @@
+/*  Fluent Bit
+ *  ==========
+ *  Copyright (C) 2015-2024 The Fluent Bit Authors
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License");
+ *  you may not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS,
+ *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ */
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "someip_api.h"
+
+
+static const char* NAME = "Test Service";
+static const uint16_t SERVICE_ID     = 4;
+static const uint16_t INSTANCE_ID    = 1;
+static const uint16_t METHOD_ID      = 1;
+static const uint16_t EVENT_ID       = 0x8000U;
+static const uint16_t EVENT_GROUP_ID = 1;
+
+static uint16_t client_id = 0;
+
+/*
+ * Function to handle callback when a request is received.
+ * @param request_ptr Pointer to the structure that has the request details.
+ */
+void HandleRequest(void*, struct some_ip_request *request_ptr) {
+    static const char* response = "This is the response to the request";
+    int ret = 0;
+    if (request_ptr == NULL) {
+        return;
+    }
+    printf("Received request (method = %d)\n", request_ptr->method_id);
+    printf("Payload length = %ld\n", request_ptr->payload_len);
+
+    /* Normal service would Parse the request and perform/initiate some actions on it*/
+    /* For this example just send back a canned response */
+
+    ret = someip_send_response(client_id, request_ptr->request_id.client_request_id,
+                               (void*)response, strlen(response));
+    if (ret != SOMEIP_RET_SUCCESS) {
+        printf("Failed to send response: %d\n", ret);
+    }
+}
+
+/*
+ * Function to initialize the test service with the SOME/IP library.
+ * @return 0 on success, -1 on failure.
+ */
+int Initialize() {
+    int ret = someip_initialize(NAME, &client_id);
+    if (ret != SOMEIP_RET_SUCCESS) {
+        printf("Failed to initialize SOME/IP: %d\n", ret);
+        return -1;
+    }
+
+    /* Register Request Handler */
+    ret = someip_register_request_handler(client_id, SERVICE_ID, INSTANCE_ID,
+                                          METHOD_ID, NULL, HandleRequest);
+
+    if (ret != SOMEIP_RET_SUCCESS) {
+        printf("Failed to register request handler: %d\n", ret);
+        someip_shutdown(client_id);
+        return -1;
+    }
+
+    /* Offer Event */
+    ret = someip_offer_event(client_id, SERVICE_ID, INSTANCE_ID, EVENT_ID, (uint16_t*)&EVENT_GROUP_ID, 1);
+    if (ret != SOMEIP_RET_SUCCESS) {
+        printf("Failed to Offer Event: %d\n", ret);
+        someip_shutdown(client_id);
+        return -1;
+    }
+
+    /* Offer Service */
+    ret = someip_offer_service(client_id, SERVICE_ID, INSTANCE_ID);
+    if (ret != SOMEIP_RET_SUCCESS) {
+        printf("Failed to Offer Service: %d\n", ret);
+        someip_shutdown(client_id);
+        return -1;
+    }
+
+    return 0;
+}
+
+void Teardown() {
+    someip_shutdown(client_id);
+}
+
+void SendEvent(const int num) {
+    const char* base_msg = "Event Number ";
+    char buffer[128];
+    int ret = 0;
+    strcpy(buffer, base_msg);
+    sprintf(buffer + strlen(base_msg), "%d", num);
+
+    printf("Sending event with message %s\n", buffer);
+
+    ret = someip_send_event(client_id, SERVICE_ID, INSTANCE_ID, EVENT_ID,
+                            buffer, strlen(buffer));
+    if (ret != SOMEIP_RET_SUCCESS) {
+        printf ("Failed to send event, %d\n", ret);
+    }
+}
+
+
+int main() {
+    int num_events = 10;
+    if (Initialize() != 0) {
+        return EXIT_FAILURE;
+    }
+
+
+    for (int i = 0; i <= num_events; ++i) {
+        SendEvent(i);
+        sleep(2);
+    }
+
+    Teardown();
+    return EXIT_SUCCESS;
+}