XrdNetConnect Class Reference

#include <XrdNetConnect.hh>

Collaboration diagram for XrdNetConnect:

Static Public Member Functions
static int	Connect (int fd, const struct sockaddr *name, int namelen, int tsec=-1)

Detailed Description

Definition at line 40 of file XrdNetConnect.hh.

Member Function Documentation

Connect()

int XrdNetConnect::Connect ( int fd, const struct sockaddr * name, int namelen, int tsec = -1 )

static

Definition at line 47 of file XrdNetConnect.cc.

{
   int old_flags, new_flags, myRC;
   SOCKLEN_t myRClen = sizeof(myRC);
 
// If no timeout wanted, do a plain connect() which will timeout after 3
// minutes on most platforms.
//
   if (!tsec)
      {if (connect(fd, name, namelen)) return errno;
       return 0;
      }
 
// If a timeout is wanted, then we must convert this file descriptor to be
// non-blocking so that if a connection is not made immediately we can get
// control back and poll for completion for the specified amount of time.
// Regardless of outcome we will restore the original fd settings.
//
   old_flags = fcntl(fd, F_GETFL, 0);
   new_flags = old_flags | O_NDELAY | O_NONBLOCK;
   fcntl(fd, F_SETFL, new_flags);
   if (!connect(fd, name, namelen))  myRC = 0;
      else if (EINPROGRESS != net_errno) myRC = net_errno;
              else {struct pollfd polltab = {fd, POLLOUT|POLLWRNORM, 0};
                    do {myRC = poll(&polltab, 1, tsec*1000);} 
                       while(myRC < 0 && errno == EINTR);
                    if (myRC != 1) myRC = ETIMEDOUT;
                       else getsockopt(fd,SOL_SOCKET,SO_ERROR,(Sokdata_t)&myRC,&myRClen);
                   }
   fcntl(fd, F_SETFD, old_flags);
   return myRC;
}

References net_errno, SOCKLEN_t, and Sokdata_t.

Referenced by XrdCl::Socket::ConnectToAddress(), and XrdNetSocket::Open().

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The documentation for this class was generated from the following files:

• XrdNetConnect.hh
• XrdNetConnect.cc