first commit for opensource

first commit for opensource

examples/tcp_udp_base_lwip/tcp_client/tcp_client.c

@@ -0,0 +1,60 @@
+#include "tcp_client.h"
+#include <stdio.h>
+#include <string.h>
+#include "lwip/api.h"
+#include <lwip/sockets.h>
+#include <lwip/err.h>
+#include <lwip/sys.h>
+#include <errno.h>
+
+char recvline[512];
+
+const char *str = "Welcome to TencentOS Tiny!";
+const char *server_ip = "182.254.196.11";
+const unsigned short server_port = 8087;
+
+void application_entry(void *arg)
+{
+    int socketfd, len;
+    static int cnt=0;
+    struct sockaddr_in sockaddr;
+    struct timeval tv = {10, 0};
+
+    MX_LWIP_Init();
+
+    while (1) {
+        socketfd = socket(AF_INET, SOCK_STREAM, 0);
+        setsockopt(socketfd, SOL_SOCKET, SO_RCVTIMEO, (char*)&tv, sizeof(struct timeval));
+        memset(&sockaddr, 0, sizeof(sockaddr));
+
+        sockaddr.sin_addr.s_addr = inet_addr(server_ip);
+        sockaddr.sin_family = AF_INET;
+        sockaddr.sin_port = htons(server_port);
+
+        if ((connect(socketfd, (struct sockaddr*)&sockaddr, sizeof(sockaddr))) < 0) {
+            printf("connect error %s errno: %d\n", strerror(errno), errno);
+            goto tcp_client_exit;
+        }
+
+        printf("send(%d): %s:%d :%s\n", ++cnt, server_ip, server_port, str);
+        if ((send(socketfd, str, strlen(str), 0)) < 0) {
+            printf("send mes error: %s errno : %d\n", strerror(errno), errno);
+            goto tcp_client_exit;
+        }
+
+        len = recv(socketfd, recvline, sizeof(recvline), 0);
+        if (len > 0) {
+            recvline[len] = '\0';
+            printf("recv msg from server: %s\n", recvline);
+        } else {
+            printf("recv err(%d)\n", len);
+        }
+
+        close(socketfd);
+        tos_task_delay(1000);
+    }
+
+tcp_client_exit:
+    printf("exit\n");
+}
+

examples/tcp_udp_base_lwip/tcp_client/tcp_client.h

@@ -0,0 +1,11 @@
+#ifndef _TCP_CLIENT_H
+#define _TCP_CLIENT_H
+
+#include "sys.h"
+#include "lwip/debug.h"
+#include "lwip/stats.h"
+#include "lwip/tcp.h"
+#include "ethernetif.h"
+
+#endif
+