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#
#
# Nimrod's Runtime Library
# (c) Copyright 2014 Dominik Picheta
#
# See the file "copying.txt", included in this
# distribution, for details about the copyright.
#
## This module implements a high-level cross-platform sockets interface.
import sockets2, os
type
TSocket* = TSocketHandle
proc bindAddr*(socket: TSocket, port = TPort(0), address = "") {.
tags: [FReadIO].} =
## binds an address/port number to a socket.
## Use address string in dotted decimal form like "a.b.c.d"
## or leave "" for any address.
if address == "":
var name: TSockaddr_in
when defined(windows):
name.sin_family = toInt(AF_INET).int16
else:
name.sin_family = toInt(AF_INET)
name.sin_port = htons(int16(port))
name.sin_addr.s_addr = htonl(INADDR_ANY)
if bindAddr(socket, cast[ptr TSockAddr](addr(name)),
sizeof(name).TSocklen) < 0'i32:
osError(osLastError())
else:
var aiList = getAddrInfo(address, port, AF_INET)
if bindAddr(socket, aiList.ai_addr, aiList.ai_addrlen.TSocklen) < 0'i32:
dealloc(aiList)
osError(osLastError())
dealloc(aiList)
proc setBlocking*(s: TSocket, blocking: bool) {.tags: [].} =
## Sets blocking mode on socket
when defined(Windows):
var mode = clong(ord(not blocking)) # 1 for non-blocking, 0 for blocking
if ioctlsocket(s, FIONBIO, addr(mode)) == -1:
osError(osLastError())
else: # BSD sockets
var x: int = fcntl(s, F_GETFL, 0)
if x == -1:
osError(osLastError())
else:
var mode = if blocking: x and not O_NONBLOCK else: x or O_NONBLOCK
if fcntl(s, F_SETFL, mode) == -1:
osError(osLastError())
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