仓库迁移

source/task/udp.c

@@ -0,0 +1,92 @@
+#include "lwip/opt.h"
+#include "lwip/sys.h"
+#include "lwip/api.h"
+#include "debug.h"
+#include "lwip/tcp.h"
+#include "board.h"
+#include "udp.h"
+#include "dev_flash.h"
+
+
+typedef struct{
+  struct netconn *conn;
+  struct netbuf *buf;// 接收的数据
+  ip_addr_t dst_ip;
+  int dst_port;
+}self_def;
+
+
+void *tappend(void *p,void *del);
+
+
+
+
+static void udp_thread(void *arg)
+{
+  self_def *s=arg;
+  err_t err;
+  LWIP_UNUSED_ARG(arg);
+  ip_addr_t dst;
+  const sys_param_def *par=sys_param();
+  IP4_ADDR(&dst,par->host_ip[0],par->host_ip[1],par->host_ip[2],par->host_ip[3]);
+
+  while (1) {
+
+    s->conn = netconn_new(NETCONN_UDP);
+    err=netconn_bind(s->conn, IP_ADDR_ANY, 7777);
+    if (err == ERR_OK) {
+      void *data;
+      u16_t len;
+      while ((err = netconn_recv(s->conn, &s->buf)) == ERR_OK) {
+        do {
+             netbuf_data(s->buf, &data, &len);
+             s->dst_ip=*netbuf_fromaddr(s->buf);
+             s->dst_port=netbuf_fromport(s->buf);
+             array_def *arr=arr_creat();
+             arr_appends(arr,data,len);
+             arr_append(arr,0);
+             // 字符数据命令字为0
+             emit udp_recv_signal(s,0,arr_temp(arr),"ok");
+        } while (netbuf_next(s->buf) >= 0);
+        netbuf_delete(s->buf);
+      }
+    }
+    else
+    {
+      DBG_LOG("udp:err=%d",err);
+    }
+    netconn_close(s->conn);
+    netconn_delete(s->conn);
+    sys_msleep(1000);
+  }
+}
+
+
+
+static int myudp_init(void)
+{
+  self_def *s=calloc(1,sizeof(self_def));
+  sys_thread_new("udp_thread", udp_thread, s, 2048, 29);
+  app_variable("udp",s,0);
+  return 0;
+}
+app_init_export(myudp_init)
+
+
+
+void udp_reply_call(void *obj,uint8_t cmd,array_def *data)
+{
+  self_def *s=obj;
+  err_t err;
+  if(s->dst_port!=0){
+    struct netbuf *sbuf=netbuf_new();
+    netbuf_ref(sbuf,arr_data(data),arr_length(data));
+    err=netconn_sendto(s->conn,sbuf,&s->dst_ip,s->dst_port);
+    netbuf_delete(sbuf);
+  }
+}
+
+
+
+
+