8 #include "artdaq/DAQdata/Globals.hh"
9 #define TRACE_NAME (app_name + "_TCP_listen_fd").c_str()
11 #include <arpa/inet.h>
14 #include <netinet/in.h>
18 #include <sys/socket.h>
26 struct sockaddr_in sin;
28 listener_fd = socket(PF_INET, SOCK_STREAM, 0);
29 if (listener_fd == -1)
31 TLOG(TLVL_ERROR) <<
"Could not open listen socket! Exiting with code 1!";
32 perror(
"socket error");
37 sts = setsockopt(listener_fd, SOL_SOCKET, SO_REUSEADDR, &opt,
sizeof(opt));
40 TLOG(TLVL_ERROR) <<
"Could not set SO_REUSEADDR! Exiting with code 2!";
41 perror(
"setsockopt SO_REUSEADDR");
45 bzero((
char *)&sin,
sizeof(sin));
46 sin.sin_family = AF_INET;
47 sin.sin_port = htons(port);
48 sin.sin_addr.s_addr = INADDR_ANY;
51 sts = bind(listener_fd, (
struct sockaddr *)&sin,
sizeof(sin));
54 TLOG(TLVL_ERROR) <<
"Could not bind socket for port " << port <<
"! Exiting with code 3!";
61 socklen_t arglen =
sizeof(len);
62 sts = getsockopt(listener_fd, SOL_SOCKET, SO_RCVBUF, &len, &arglen);
63 TLOG(TLVL_INFO) <<
"RCVBUF initial: " << len <<
" sts/errno=" << sts <<
"/" << errno <<
" arglen=" << arglen <<
" rcvbuf=" << rcvbuf <<
" listener_fd=" << listener_fd;
67 sts = setsockopt(listener_fd, SOL_SOCKET, SO_RCVBUF, &len, arglen);
69 TLOG(TLVL_ERROR) <<
"Error with setsockopt SNDBUF " << errno;
71 sts = getsockopt(listener_fd, SOL_SOCKET, SO_RCVBUF, &len, &arglen);
72 if (len < (rcvbuf * 2))
73 TLOG(TLVL_WARNING) <<
"RCVBUF " << len <<
" not expected (" << rcvbuf <<
" sts/errno=" << sts <<
"/" << errno;
75 TLOG(TLVL_DEBUG) <<
"RCVBUF " << len <<
" sts/errno=" << sts <<
"/" << errno;
79 sts = listen(listener_fd, 5 );
82 TLOG(TLVL_ERROR) <<
"Error calling listen! errno=" << errno <<
" (" << strerror(errno) <<
")";
83 perror(
"listen error");
int TCP_listen_fd(int port, int rcvbuf)
Create a TCP listening socket on the given port and INADDR_ANY, with the given receive buffer...