SOCKETPAIR(2) System Calls Manual SOCKETPAIR(2)NAME
socketpair - create a pair of connected sockets
SYNOPSIS
#include <sys/types.h>
#include <sys/socket.h>
socketpair(d, type, protocol, sv)
int d, type, protocol;
int sv[2];
DESCRIPTION
The socketpair call creates an unnamed pair of connected sockets in the specified domain d, of the specified type, and using the optionally
specified protocol. The descriptors used in referencing the new sockets are returned in sv[0] and sv[1]. The two sockets are indistin-
guishable.
DIAGNOSTICS
A 0 is returned if the call succeeds, -1 if it fails.
ERRORS
The call succeeds unless:
[EMFILE] Too many descriptors are in use by this process.
[EAFNOSUPPORT] The specified address family is not supported on this machine.
[EPROTONOSUPPORT] The specified protocol is not supported on this machine.
[EOPNOSUPPORT] The specified protocol does not support creation of socket pairs.
[EFAULT] The address sv does not specify a valid part of the process address space.
SEE ALSO read(2), write(2), pipe(2)BUGS
This call is currently implemented only for the UNIX domain.
4.2 Berkeley Distribution May 15, 1985 SOCKETPAIR(2)
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SOCKETPAIR(2) BSD System Calls Manual SOCKETPAIR(2)NAME
socketpair -- create a pair of connected sockets
LIBRARY
Standard C Library (libc, -lc)
SYNOPSIS
#include <sys/socket.h>
int
socketpair(int d, int type, int protocol, int *sv);
DESCRIPTION
The socketpair() call creates an unnamed pair of connected sockets in the specified domain d, of the specified type, and using the optionally
specified protocol. The descriptors used in referencing the new sockets are returned in sv[0] and sv[1]. The two sockets are indistinguish-
able.
The type and protocol argument values are described in socket(2).
RETURN VALUES
A 0 is returned if the call succeeds, -1 if it fails.
ERRORS
The call succeeds unless:
[EAFNOSUPPORT] The specified address family is not supported on this machine.
[EFAULT] The address sv does not specify a valid part of the process address space.
[EMFILE] Too many descriptors are in use by this process.
[ENFILE] The system file table is full.
[EOPNOTSUPP] The specified protocol does not support creation of socket pairs.
[EPROTONOSUPPORT] The specified protocol is not supported on this machine.
SEE ALSO pipe(2), read(2), socket(2), write(2)HISTORY
The socketpair() function call appeared in 4.2BSD.
BUGS
This call is currently implemented only for the PF_LOCAL domain.
BSD June 24, 2011 BSD
what is the difference to use socketpair and socket while socket programming
other than socket create a single socket,socketpair creates a pair of sockets (0 Replies)
Is there a performance advantage of one of these over the other? Obviously, it makes no sense to use normal TCP sockets or UDP sockets w/ the overhead they carry. But what about UNIX domain sockets vs FIFOs? I'd think they'd be very similar, in terms of performance and in terms of how they're... (2 Replies)
Hello Every one,
it's requiered to create 'n' number of sockets constant for a hour time. i had my own script to create sockets using this i was able to create sockets and sendind data but using the tool i can maintain 'n' number of sockets for 5 minutes only after sockets are getting reduced to... (1 Reply)
Hi, Im currently using CentOS and have a few questions on the command Netstat(8).
a.So what command do I use to list all active and available sockets? I also want to
include UNIX domain sockets. (I have read the netstat man page but just really confused)
b. What states may a TCP... (1 Reply)