Send multiple packets in one system call

2 files changed, 14 insertions, 0 deletions

diff --git a/src/UDPClient/UDPClient.cpp b/src/UDPClient/UDPClient.cpp
index 1d427ba..b9d55d0 100644
--- a/src/UDPClient/UDPClient.cpp
+++ b/src/UDPClient/UDPClient.cpp
@@ -64,12 +64,21 @@
      {
          throw udp_client_server_runtime_error(("invalid address or port: \"" + addr + ":" + decimal_port + "\"").c_str());
      }
+
      f_socket = socket(f_addrinfo->ai_family, SOCK_DGRAM | SOCK_CLOEXEC, IPPROTO_UDP);
      if(f_socket == -1)
      {
          freeaddrinfo(f_addrinfo);
          throw udp_client_server_runtime_error(("could not create socket for: \"" + addr + ":" + decimal_port + "\"").c_str());
      }
+ 
+     if (connect(f_socket, f_addrinfo->ai_addr, f_addrinfo->ai_addrlen))
+     {
+	close(f_socket);
+        freeaddrinfo(f_addrinfo);
+        throw udp_client_server_runtime_error(("could not connect socket for: \"" + addr + ":" + decimal_port + "\"").c_str());
+     }
+     
      printf("Created client %d\n", f_port);
  }
 
@@ -140,3 +149,7 @@
  int UDPClient::send(const char *msg, std::size_t size){
      return sendto(f_socket, msg, size, 0, f_addrinfo->ai_addr, f_addrinfo->ai_addrlen);
  }
+
+ int UDPClient::msend(int n, struct mmsghdr *msg){
+     return sendmmsg(f_socket, msg, n, 0);
+ }
diff --git a/src/UDPClient/UDPClient.h b/src/UDPClient/UDPClient.h
index f6cf0d6..f1c8a8d 100644
--- a/src/UDPClient/UDPClient.h
+++ b/src/UDPClient/UDPClient.h
@@ -33,6 +33,7 @@ public:
   std::string         get_addr() const;
 
   int                 send(const char *msg, size_t size);
+  int		      msend(int n, struct mmsghdr *msg);
 
 private:
   int                 f_socket;