Add hello world example

Signed-off-by: Cervenka Dusan <[email protected]>

.gitignore

@@ -102,6 +102,7 @@ mdk
 lpcx
 mcux
 tags
+shim
 
 format-files-to-commit.rb
 language\.settings\.xml

examples/config.h

@@ -0,0 +1,4 @@
+#pragma once
+
+#define ERPC_HOSTNAME "localhost"
+#define ERPC_PORT 8811

examples/config.py

@@ -0,0 +1,15 @@
+#!/bin/python3
+
+def loadConfig(path: str = "config.h"):
+    ''' Load config macros from C header file'''
+    retVal = {}
+
+    with open(path, "r") as file:
+        configContext = file.read().split("#define ")[1:]
+        for c in configContext:
+            cfg = c.split(" ")
+            if len(cfg) > 1:
+                val = cfg[1][:-1].replace("\"","")
+                retVal[cfg[0]] = val
+
+    return retVal

examples/hello_world/README.md

@@ -0,0 +1,25 @@
+# Hello world example
+
+This example shows basic usage of eRPC framework.
+
+## Prerequisites
+
+Run these commands in this folder based on needs with correct path to erpcgen application
+
+C/C++ shim code:
+
+```bash
+erpcgen -gc -o shim/py hello_world.erpc
+```
+
+Python shim code:
+
+```bash
+erpcgen -gpy -o shim/py hello_world.erpc
+```
+
+In case of C/C++ build application
+
+## Run example
+
+First run server, then client.

examples/hello_world/c/main_client.c

@@ -0,0 +1,29 @@
+#include "erpc_c/setup/erpc_client_setup.h"
+#include "erpc_c/setup/erpc_transport_setup.h"
+#include "erpc_c/setup/erpc_mbf_setup.h"
+#include "examples/hello_world/shim/c/c_hello_world_client.h"
+#include "examples/config.h"
+
+int main()
+{
+    erpc_transport_t transport;
+    erpc_mbf_t message_buffer_factory;
+    erpc_client_t client_manager;
+
+    /* Init eRPC client infrastructure */
+    transport = erpc_transport_tcp_init(ERPC_HOSTNAME, ERPC_PORT, false);
+    message_buffer_factory = erpc_mbf_dynamic_init();
+    client_manager = erpc_client_init(transport, message_buffer_factory);
+
+    /* init eRPC client TextService service */
+    initTextService_client(client_manager);
+
+    /* do eRPC call */
+    printText("Hello world!");
+
+    /* deinit objects */
+    deinitTextService_client();
+    erpc_client_deinit(client_manager);
+    erpc_mbf_dynamic_deinit(message_buffer_factory);
+    erpc_transport_tcp_deinit(transport);
+}

examples/hello_world/c/main_client.cpp

@@ -0,0 +1,31 @@
+#include "erpc_c/setup/erpc_client_setup.h"
+#include "erpc_c/setup/erpc_transport_setup.h"
+#include "erpc_c/setup/erpc_mbf_setup.h"
+#include "examples/hello_world/shim/c/hello_world_client.hpp"
+#include "examples/config.h"
+
+int main()
+{
+    erpc_transport_t transport;
+    erpc_mbf_t message_buffer_factory;
+    erpc_client_t client_manager;
+
+    /* Init eRPC client infrastructure */
+    transport = erpc_transport_tcp_init(ERPC_HOSTNAME, ERPC_PORT, false);
+    message_buffer_factory = erpc_mbf_dynamic_init();
+    client_manager = erpc_client_init(transport, message_buffer_factory);
+
+    /* scope for client service */
+    {
+        /* init eRPC client TextService service */
+        TextService_client client(client_manager);
+
+        /* do eRPC call */
+        client.printText("Hello world!");
+    }
+
+    /* deinit objects */
+    erpc_client_deinit(client_manager);
+    erpc_mbf_dynamic_deinit(message_buffer_factory);
+    erpc_transport_tcp_deinit(transport);
+}

examples/hello_world/c/main_server.c

@@ -0,0 +1,34 @@
+#include "erpc_c/setup/erpc_server_setup.h"
+#include "erpc_c/setup/erpc_transport_setup.h"
+#include "erpc_c/setup/erpc_mbf_setup.h"
+#include "examples/hello_world/shim/c/c_hello_world_server.h"
+#include "examples/config.h"
+#include <cstdio>
+
+/* eRPC call definition */
+void printText(const char *text) { printf("%s", text); }
+
+int main()
+{
+    erpc_transport_t transport;
+    erpc_mbf_t message_buffer_factory;
+    erpc_server_t server;
+    erpc_service_t service = create_TextService_service();
+
+    /* Init eRPC server infrastructure */
+    transport = erpc_transport_tcp_init(ERPC_HOSTNAME, ERPC_PORT, true);
+    message_buffer_factory = erpc_mbf_dynamic_init();
+    server = erpc_server_init(transport, message_buffer_factory);
+
+    /* add custom service implementation to the server */
+    erpc_add_service_to_server(server, service);
+
+    /* poll for requests */
+    erpc_status_t err = server.poll();
+
+    /* deinit objects */
+    destroy_TextService_service(service);
+    erpc_server_deinit(server);
+    erpc_mbf_dynamic_deinit(message_buffer_factory);
+    erpc_transport_tcp_deinit(transport);
+}

examples/hello_world/c/main_server.cpp

@@ -0,0 +1,37 @@
+#include "erpc_c/setup/erpc_server_setup.h"
+#include "erpc_c/setup/erpc_transport_setup.h"
+#include "erpc_c/setup/erpc_mbf_setup.h"
+#include "examples/hello_world/shim/c/hello_world_server.hpp"
+#include "examples/config.h"
+#include <cstdio>
+
+class TextService : public TextService_interface
+{
+    /* eRPC call definition */
+    void printText(const char *text) override { printf("%s", text); }
+}
+
+int main()
+{
+    erpc_transport_t transport;
+    erpc_mbf_t message_buffer_factory;
+    erpc_server_t server;
+    TextService textServiceImpl;
+    TextService_service textService(&textServiceImpl);
+
+    /* Init eRPC server infrastructure */
+    transport = erpc_transport_tcp_init(ERPC_HOSTNAME, ERPC_PORT, true);
+    message_buffer_factory = erpc_mbf_dynamic_init();
+    server = erpc_server_init(transport, message_buffer_factory);
+
+    /* add custom service implementation to the server */
+    erpc_add_service_to_server(server, &textService);
+
+    /* poll for requests */
+    erpc_status_t err = server.poll();
+
+    /* deinit objects */
+    erpc_server_deinit(server);
+    erpc_mbf_dynamic_deinit(message_buffer_factory);
+    erpc_transport_tcp_deinit(transport);
+}

examples/hello_world/hello_world.erpc

@@ -0,0 +1,4 @@
+interface TextService
+{
+    oneway printText(string text)
+}

examples/hello_world/py/main_client.py

@@ -0,0 +1,27 @@
+#!/bin/python3
+import sys
+
+sys.path.insert(1, '../../../erpc_python')  # nopep8
+sys.path.insert(2, '../../')  # nopep8
+sys.path.insert(3, '../')  # nopep8
+
+import erpc
+import config
+from shim.py import hello_world
+
+
+def main():
+    # load configuration macros from C header file
+    cfg = config.loadConfig("../../config.h")
+
+    # init eRPC client infrastructure
+    transport = erpc.transport.TCPTransport(cfg["ERPC_HOSTNAME"], int(cfg["ERPC_PORT"]), False)
+    clientManager = erpc.client.ClientManager(transport, erpc.basic_codec.BasicCodec)
+
+    # init eRPC client
+    client = hello_world.client.TextServiceClient(clientManager)
+
+    # do eRPC call
+    client.printText("Hello world!")
+
+main()

examples/hello_world/py/main_server.py

@@ -0,0 +1,38 @@
+#!/bin/python3
+import sys
+
+sys.path.insert(1, '../../../erpc_python')  # nopep8
+sys.path.insert(2, '../../')  # nopep8
+sys.path.insert(3, '../')  # nopep8
+
+import erpc
+import config
+from shim.py import hello_world
+
+class MatrixMultiplyServiceHandler(hello_world.interface.ITextService):
+    def printText(self, text):
+        '''eRPC call definition'''
+
+        print(text)
+
+
+def main():
+    # load configuration macros from C header file
+    cfg = config.loadConfig("../../config.h")
+
+    # init service
+    handler = MatrixMultiplyServiceHandler()
+    service = hello_world.server.TextServiceService(handler)
+
+    # init eRPC server infrastructure
+    transport = erpc.transport.TCPTransport(cfg["ERPC_HOSTNAME"], int(cfg["ERPC_PORT"]), True)
+    server = erpc.simple_server.SimpleServer(transport, erpc.basic_codec.BasicCodec)
+    server.add_service(service)
+
+    # run server
+    try:
+        server.run()
+    except:
+        pass
+
+main()