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class method
Socket.socketpair
Socket.pair(domain, type, protocol) => [socket1, socket2]
Socket.socketpair(domain, type, protocol) => [socket1, socket2]
ext/socket/socket.c
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VALUE
rsock_sock_s_socketpair(int argc, VALUE *argv, VALUE klass)
{
VALUE domain, type, protocol;
int d, t, p, sp[2];
int ret;
VALUE s1, s2, r;
rb_scan_args(argc, argv, "21", &domain, &type, &protocol);
if (NIL_P(protocol))
protocol = INT2FIX(0);
setup_domain_and_type(domain, &d, type, &t);
p = NUM2INT(protocol);
ret = rsock_socketpair(d, t, p, sp);
if (ret < 0) {
rb_sys_fail("socketpair(2)");
}
s1 = rsock_init_sock(rb_obj_alloc(klass), sp[0]);
s2 = rsock_init_sock(rb_obj_alloc(klass), sp[1]);
r = rb_assoc_new(s1, s2);
if (rb_block_given_p()) {
return rb_ensure(pair_yield, r, io_close, s1);
}
return r;
}
Creates a pair of sockets connected each other.
domain should be a communications domain such as: :INET, :INET6, :UNIX, etc.
socktype should be a socket type such as: :STREAM, :DGRAM, :RAW, etc.
protocol should be a protocol defined in the domain, defaults to 0 for the domain.
Example
s1, s2 = Socket.pair(:UNIX, :STREAM, 0) s1.send "a", 0 s1.send "b", 0 s1.close p s2.recv(10) #=> "ab" p s2.recv(10) #=> "" p s2.recv(10) #=> "" s1, s2 = Socket.pair(:UNIX, :DGRAM, 0) s1.send "a", 0 s1.send "b", 0 p s2.recv(10) #=> "a" p s2.recv(10) #=> "b"