Non-blocking example of the LWIPInterface
Dependencies: LWIPInterface NetworkSocketAPI mbed-rtos mbed
Non-blocking example for the NetworkSocketAPI. Attempts to get the device's public facing IP address from ifcfg.me using the Happy Eyeballs algorithm to fetch an IPv4 or IPv6 address.
main.cpp@58:7033f5893210, 2016-04-05 (annotated)
- Committer:
- Christopher Haster
- Date:
- Tue Apr 05 15:32:00 2016 -0500
- Revision:
- 58:7033f5893210
- Parent:
- 57:fb2f8e188383
- Child:
- 59:14d6716bc772
Updated example
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
sam_grove | 0:1984a177ff56 | 1 | /* NetworkSocketAPI Example Program |
sam_grove | 0:1984a177ff56 | 2 | * Copyright (c) 2015 ARM Limited |
sam_grove | 0:1984a177ff56 | 3 | * |
sam_grove | 0:1984a177ff56 | 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
sam_grove | 0:1984a177ff56 | 5 | * you may not use this file except in compliance with the License. |
sam_grove | 0:1984a177ff56 | 6 | * You may obtain a copy of the License at |
sam_grove | 0:1984a177ff56 | 7 | * |
sam_grove | 0:1984a177ff56 | 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
sam_grove | 0:1984a177ff56 | 9 | * |
sam_grove | 0:1984a177ff56 | 10 | * Unless required by applicable law or agreed to in writing, software |
sam_grove | 0:1984a177ff56 | 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
sam_grove | 0:1984a177ff56 | 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
sam_grove | 0:1984a177ff56 | 13 | * See the License for the specific language governing permissions and |
sam_grove | 0:1984a177ff56 | 14 | * limitations under the License. |
sam_grove | 0:1984a177ff56 | 15 | */ |
sam_grove | 0:1984a177ff56 | 16 | |
sam_grove | 0:1984a177ff56 | 17 | #include "mbed.h" |
geky | 44:d7c5a56450a1 | 18 | #include "LWIPInterface.h" |
Christopher Haster |
30:f80540b6e2db | 19 | #include "TCPSocket.h" |
sam_grove | 0:1984a177ff56 | 20 | |
Christopher Haster |
32:28a909a3748e | 21 | DigitalOut myled(LED_GREEN); |
sam_grove | 50:a9926b8b21fe | 22 | void flash() |
sam_grove | 50:a9926b8b21fe | 23 | { |
sam_grove | 50:a9926b8b21fe | 24 | myled = !myled; |
sam_grove | 50:a9926b8b21fe | 25 | } |
Christopher Haster |
58:7033f5893210 | 26 | |
geky | 44:d7c5a56450a1 | 27 | LWIPInterface eth; |
Christopher Haster |
58:7033f5893210 | 28 | TCPSocket socket(ð); |
sam_grove | 2:7283ce112304 | 29 | |
sam_grove | 0:1984a177ff56 | 30 | int main() |
sam_grove | 20:4cb9ef3b0cc9 | 31 | { |
sam_grove | 20:4cb9ef3b0cc9 | 32 | Ticker t; |
sam_grove | 24:471a07e886ae | 33 | t.attach(flash, 0.4f); |
bridadan | 14:c47437f5dae8 | 34 | printf("NetworkSocketAPI Example\r\n"); |
Christopher Haster |
58:7033f5893210 | 35 | |
geky | 44:d7c5a56450a1 | 36 | eth.connect(); |
sam_grove | 50:a9926b8b21fe | 37 | |
Christopher Haster |
58:7033f5893210 | 38 | const char *ip = eth.get_ip_address(); |
Christopher Haster |
58:7033f5893210 | 39 | const char *mac = eth.get_mac_address(); |
Christopher Haster |
30:f80540b6e2db | 40 | printf("IP Address is: %s\r\n", (ip) ? ip : "No IP"); |
Christopher Haster |
30:f80540b6e2db | 41 | printf("MAC Address is: %s\r\n", (mac) ? mac : "No MAC"); |
sarahmarshy | 22:1d355289fc18 | 42 | |
Christopher Haster |
58:7033f5893210 | 43 | socket.connect("time-a.nist.gov", 37); |
sarahmarshy | 21:979b1db5d7da | 44 | |
sam_grove | 24:471a07e886ae | 45 | char recieved[100] = {0}; |
Christopher Haster |
30:f80540b6e2db | 46 | int32_t size = 0; |
Christopher Haster |
30:f80540b6e2db | 47 | size = socket.recv(recieved, sizeof(recieved)); |
Christopher Haster |
30:f80540b6e2db | 48 | |
Christopher Haster |
30:f80540b6e2db | 49 | socket.close(); |
geky | 44:d7c5a56450a1 | 50 | eth.disconnect(); |
Christopher Haster |
30:f80540b6e2db | 51 | |
Christopher Haster |
30:f80540b6e2db | 52 | printf("Recieved: %ld bytes, %02x%02x%02x%02x\r\n", size, |
sam_grove | 50:a9926b8b21fe | 53 | recieved[0], recieved[1], recieved[2], recieved[3]); |
Christopher Haster |
58:7033f5893210 | 54 | printf("NetworkSocketAPI Example Finished\r\n"); |
sam_grove | 0:1984a177ff56 | 55 | } |