+++ /dev/null
-/*
- *
- * Copyright 2019 AT&T Intellectual Property
- * Copyright 2019 Nokia
- *
- * 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 <stdio.h>
-#include <stdlib.h>
-#include <time.h>
-#include <string.h>
-#include <assert.h>
-#include <unistd.h> //for close()
-#include <arpa/inet.h> //for inet_ntop()
-
-#include "e2sim_defs.h"
-#include "e2sim_sctp.h"
-#include "x2ap_message_handler.h"
-
-//OSN 2019
-#include "Pendulum_asn_codec.h"
-#include "adruino_serial.h"
-
-//rmr
-#include <errno.h>
-#include <sys/epoll.h>
-#include <rmr/rmr.h>
-#include "rmr_wrapper.h"
-
-static void pendulum_control_E2_agent(int client_fd)
-{
- fprintf(stderr, "--------------------------------------\n");
- fprintf(stderr, "E2 AGENT - START PENDULUM CONTROL\n");
- fprintf(stderr, "--------------------------------------\n");
-
- uint8_t *buffer;
- uint32_t len;
- clock_t begin;
- double rtt; //ms
-
- uint8_t recv_buf[MAX_SCTP_BUFFER];
- int recv_len;
-
- double angle;
- double torque;
- long sqn;
- int count = 0;
-
- //serial
- // int serial_fd;
- char serial_buffer[MAX_SERIAL_BUFFER];
- // serial_fd = start_serial_inferface(DEFAULT_BAUDRATE, DEFAULT_SERIAL_PORT);
- //
- // char *delay_str_prev = "$0#\n";
- // //char *delay_str_new;
- //
- // int MSG_NUM = 10;
- //
- // //Always start with 0 delay
- // serialport_write(serial_fd, "$0#\n");
-
- // for(int i = 0; i < MSG_NUM; i++)
- while(1)
- {
-
- fprintf(stderr, "----------------\n");
- count += 1;
- buffer = NULL;
- len = 0;
-
- // //1.Read from serial
- // serial_readline(serial_fd, serial_buffer, MAX_SERIAL_BUFFER);
- // if(serial_buffer[0] == '\n')
- // {
- // //fprintf(stderr, "RECEIVED EOL\n");
- // continue;
- // }
- // //fprintf(stderr, "[Adruino] %s", serial_buffer);
- usleep(5*1000);
-
- snprintf(serial_buffer, sizeof(serial_buffer)-1, "E2 AGENT PING");
-
- begin = clock();
-
- //2. Encode pendulum angle to ASN1 message
-
- len = pendulum_create_asn_msg(&buffer, 0, 0, 0, serial_buffer);
-
- //3. Send ASN1 message to socket
- if(sctp_send_to_socket(client_fd, buffer, (size_t)len) > 0){
- fprintf(stderr, "Sent ASN1 message to E2 Termination\n");
- }
-
- // 4. Receive response from E2 Termination
- memset(recv_buf, 0, sizeof(recv_buf));
- recv_len = 0;
- recv_len = recv(client_fd, &recv_buf, sizeof(recv_buf), 0);
- if(recv_len == -1)
- {
- perror("recv()");
- return;
- }
-
- char *recv_str;
- recv_str = pendulum_get_strval(recv_buf, recv_len);
- fprintf(stderr, "Received response message #%d from xApp: %s\n", count, recv_str);
-
- // 5. TODO: Send response to serial
- // Compare if delay has changed:
- // if(strcmp(delay_str_prev, recv_str) != 0) {
- // serial_writeline(serial_fd, recv_str);
- // }
-
- //serial_writeline(serial_fd, recv_str);
-
- //Write to a file
- FILE *f;
- f = fopen("arduino_delay.txt", "w");
- fprintf(f, "%s", recv_str);
- fclose(f);
-
- begin = clock() - begin;
- rtt = 1000*((double)begin)/CLOCKS_PER_SEC; // in ms
- fprintf(stderr, "E2Agent-RIC-E2Agent RTT = %f ms\n", rtt);
-
- }
-
- close(client_fd);
-}
-
-int main(int argc, char *argv[])
-{
- fprintf(stderr, "E2 AGENT - PENDULUM CONTROL. Version %s\n", VERSION);
-
- // char *recv_str = "9";
- // int delay;
- //
- // printf("delay = %d\n", atoi(recv_str));
- //
- // long delay = 22.5;
- //
- // printf("delay = %d\n", (int)delay);
- // return 0;
-
- // test_rmr(); return 0;
- // test_adruino_serial(); return 0;
-
- char* server_ip = DEFAULT_SCTP_IP;
- int server_port = X2AP_SCTP_PORT;
-
- int server_fd;
- int client_fd;
- struct sockaddr client_addr;
- socklen_t client_addr_size;
-
- //read input
- if(argc == 3) //user provided IP and PORT
- {
- server_ip = argv[1];
- server_port = atoi(argv[2]);
- if(server_port < 1 || server_port > 65535) {
- fprintf(stderr, "Invalid port number (%d). Valid values are between 1 and 65535.\n" , server_port);
- return -1;
- }
- }
- else if(argc == 2) //user provided only IP
- {
- server_ip = argv[1];
- }
- else if(argc == 1)
- {
- server_ip = DEFAULT_SCTP_IP;
- }
- else
- {
- fprintf(stderr, "Unrecognized option.\n");
- fprintf(stderr, "Usage: %s [SERVER IP ADDRESS] [SERVER PORT]\n", argv[0]);
- return -1;
- }
-
- server_fd = sctp_start_server(server_ip, server_port);
-
- fprintf(stderr, "Waiting for connection...\n");
- client_fd = accept(server_fd, &client_addr, &client_addr_size);
- if(client_fd == -1){
- perror("accept()");
- close(client_fd);
- return -1;
- }
-
- //Todo: retrieve client ip addr
- struct sockaddr_in* client_ipv4 = (struct sockaddr_in*)&client_addr;
- char client_ip_addr[INET_ADDRSTRLEN];
- inet_ntop(AF_INET, &(client_ipv4->sin_addr), client_ip_addr, INET_ADDRSTRLEN);
-
- fprintf(stderr, "New client connected from %s\n", client_ip_addr);
-
- // while(1) //put while loop if want to receive from multiple clients
- // {
- uint8_t recv_buf[MAX_SCTP_BUFFER];
- int recv_len = 0;
-
- memset(recv_buf, 0, sizeof(recv_buf));
-
- fprintf(stderr, "------------------------\n");
- recv_len = recv(client_fd, &recv_buf, sizeof(recv_buf), 0);
- if(recv_len == -1)
- {
- perror("recv()");
- return -1;
- }
- else if(recv_len == 0)
- {
- fprintf(stderr, "\nConnection from %s closed by remote peer\n", client_ip_addr);
- if(close(client_fd) == -1)
- {
- perror("close");
- }
- return -1;
- }
-
- //fprintf(stderr, "Received a message of size %d\n", recv_len);
-
- //TODO: check PPID here before calling x2ap handler
-
- sctp_data_t response = {NULL, 0};
- x2ap_eNB_handle_message(recv_buf, recv_len, &response);
-
- //=======================================================================
- //reply to client
- assert(response.data != NULL);
- if(sctp_send_to_socket(client_fd, response.data, (size_t)response.len) > 0){
- fprintf(stderr, "Sent X2 SETUP RESPONSE \n");
- } else{
- perror("send to socket");
- return -1;
- }
-
- fprintf(stderr, "X2 Setup Completed \n");
-
- //=========================================================================
- // Pendulum interaction
- // Send pendulum state to E2 Termination and receive response
- pendulum_control_E2_agent(client_fd);
- // } //end while
-
- close(client_fd);
-
- return 0;
-}
Code Review / sim / e2-interface.git / blobdiff