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# Copyright (c) 2016, Maxim V. Abramov
# All rights reserved.
# Look at license.txt for more info.
## Simple Bluetooth server implementation based on sockets and RFCOMM protocol.
import os
import ../nimbluez/bluetoothnativesockets
var
serverPort = RfcommPort(15)
serverAddress =
""
# "00:02:72:0F:5C:87"
# "AC:7B:A1:55:E6:4A"
var serverSocket = newBluetoothNativeSocket(SOCK_STREAM, BTPROTO_RFCOMM)
if serverSocket == InvalidSocket:
raiseOSError(osLastError())
try:
var name = getRfcommAddr(serverPort, serverAddress)
if bindAddr(serverSocket,
cast[ptr SockAddr](addr(name)),
sizeof(name).SockLen) < 0'i32:
raiseOSError(osLastError())
if serverSocket.listen() < 0'i32:
raiseOSError(osLastError())
echo "Server socket created: ", repr(serverSocket)
(serverAddress, serverPort) = serverSocket.getRfcommLocalAddr()
echo "Address: ", serverAddress, ", port: ", serverPort
while true:
echo "Waiting for incoming connections..."
var
sockAddr = getRfcommAddr()
addrLen = sizeof(sockAddr).SockLen
var clientSocket = accept(serverSocket,
cast[ptr SockAddr](addr(sockAddr)),
addr(addrLen))
if clientSocket == InvalidSocket:
raiseOSError(osLastError())
try:
var
clientAddress: string
clientPort: RfcommPort
(clientAddress, clientPort) = clientSocket.getRfcommPeerAddr()
echo "Connection from ", clientAddress, " on port: ", clientPort
echo "Client socket: ", repr(clientSocket)
var message = ""
message.setLen(1000)
while true:
echo "Receiving message:"
let recvLen = clientSocket.recv(cstring(message),
cint(message.len),
cint(0))
if recvLen < 0'i32:
message.setLen(0)
echo osErrorMsg(osLastError())
break
message.setLen(recvLen)
if recvLen == 0'i32:
break
echo " ", message
echo "Characters received: ", recvLen
message = "Seven twenty-two in the A.M."
echo "Sending message:"
echo " ", message
let sentLen = clientSocket.send(cstring(message),
cint(message.len),
cint(0))
if sentLen < 0'i32:
raiseOSError(osLastError())
echo "Characters sent: ", sentLen
finally:
clientSocket.close()
echo "Client socket closed."
finally:
serverSocket.close()
echo "Server socket closed."
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