![](/media/cache/img/default_profile.jpg.50x50_q85.jpg)
8ABELI Socket Programming
Dependencies: mbed mbed-rtos EthernetInterface
main.cpp@8:2c91833ef350, 2020-03-23 (annotated)
- Committer:
- fpucher
- Date:
- Mon Mar 23 13:05:31 2020 +0000
- Revision:
- 8:2c91833ef350
- Parent:
- 7:a5ead1402704
8ABELI Socket Programming
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
fpucher | 8:2c91833ef350 | 1 | // https://developer.mbed.org/handbook/Socket |
mbed_official | 0:38cbb854d85f | 2 | #include "mbed.h" |
emilmont | 1:5cebe0e38cd2 | 3 | #include "EthernetInterface.h" |
emilmont | 1:5cebe0e38cd2 | 4 | |
emilmont | 3:36fd3cfad85a | 5 | #define ECHO_SERVER_PORT 7 |
fpucher | 8:2c91833ef350 | 6 | class Blinky { |
fpucher | 8:2c91833ef350 | 7 | DigitalOut _myled; |
fpucher | 8:2c91833ef350 | 8 | int zahl; |
fpucher | 8:2c91833ef350 | 9 | public: |
fpucher | 8:2c91833ef350 | 10 | Blinky(PinName ld) : _myled(ld), zahl(0) {} |
fpucher | 8:2c91833ef350 | 11 | void LedOn() { |
fpucher | 8:2c91833ef350 | 12 | _myled = 1; |
fpucher | 8:2c91833ef350 | 13 | } |
fpucher | 8:2c91833ef350 | 14 | void LedOff() { |
fpucher | 8:2c91833ef350 | 15 | _myled = 0; |
fpucher | 8:2c91833ef350 | 16 | } |
fpucher | 8:2c91833ef350 | 17 | }; |
fpucher | 8:2c91833ef350 | 18 | |
fpucher | 8:2c91833ef350 | 19 | Blinky bl(LED1); |
emilmont | 3:36fd3cfad85a | 20 | |
emilmont | 1:5cebe0e38cd2 | 21 | int main (void) { |
emilmont | 1:5cebe0e38cd2 | 22 | EthernetInterface eth; |
emilmont | 1:5cebe0e38cd2 | 23 | eth.init(); //Use DHCP |
emilmont | 1:5cebe0e38cd2 | 24 | eth.connect(); |
mbedAustin | 7:a5ead1402704 | 25 | printf("\nServer IP Address is %s\n", eth.getIPAddress()); |
emilmont | 1:5cebe0e38cd2 | 26 | |
emilmont | 1:5cebe0e38cd2 | 27 | TCPSocketServer server; |
emilmont | 3:36fd3cfad85a | 28 | server.bind(ECHO_SERVER_PORT); |
emilmont | 3:36fd3cfad85a | 29 | server.listen(); |
emilmont | 1:5cebe0e38cd2 | 30 | |
emilmont | 1:5cebe0e38cd2 | 31 | while (true) { |
emilmont | 1:5cebe0e38cd2 | 32 | printf("\nWait for new connection...\n"); |
emilmont | 1:5cebe0e38cd2 | 33 | TCPSocketConnection client; |
emilmont | 1:5cebe0e38cd2 | 34 | server.accept(client); |
emilmont | 3:36fd3cfad85a | 35 | client.set_blocking(false, 1500); // Timeout after (1.5)s |
emilmont | 1:5cebe0e38cd2 | 36 | |
emilmont | 1:5cebe0e38cd2 | 37 | printf("Connection from: %s\n", client.get_address()); |
emilmont | 1:5cebe0e38cd2 | 38 | char buffer[256]; |
emilmont | 1:5cebe0e38cd2 | 39 | while (true) { |
emilmont | 3:36fd3cfad85a | 40 | int n = client.receive(buffer, sizeof(buffer)); |
emilmont | 1:5cebe0e38cd2 | 41 | if (n <= 0) break; |
emilmont | 1:5cebe0e38cd2 | 42 | |
mbedAustin | 7:a5ead1402704 | 43 | // print received message to terminal |
mbedAustin | 7:a5ead1402704 | 44 | buffer[n] = '\0'; |
mbedAustin | 7:a5ead1402704 | 45 | printf("Received message from Client :'%s'\n",buffer); |
mbedAustin | 7:a5ead1402704 | 46 | |
mbedAustin | 7:a5ead1402704 | 47 | // reverse the message |
mbedAustin | 7:a5ead1402704 | 48 | char temp; |
mbedAustin | 7:a5ead1402704 | 49 | for(int f = 0, l = n-1; f<l; f++,l--){ |
mbedAustin | 7:a5ead1402704 | 50 | temp = buffer[f]; |
mbedAustin | 7:a5ead1402704 | 51 | buffer[f] = buffer[l]; |
mbedAustin | 7:a5ead1402704 | 52 | buffer[l] = temp; |
mbedAustin | 7:a5ead1402704 | 53 | } |
mbedAustin | 7:a5ead1402704 | 54 | |
mbedAustin | 7:a5ead1402704 | 55 | // print reversed message to terminal |
mbedAustin | 7:a5ead1402704 | 56 | printf("Sending message to Client: '%s'\n",buffer); |
fpucher | 8:2c91833ef350 | 57 | bl.LedOn(); |
fpucher | 8:2c91833ef350 | 58 | wait(0.5); |
fpucher | 8:2c91833ef350 | 59 | bl.LedOff(); |
fpucher | 8:2c91833ef350 | 60 | wait(0.5); |
fpucher | 8:2c91833ef350 | 61 | |
mbedAustin | 7:a5ead1402704 | 62 | // Echo received message back to client |
emilmont | 2:ec5ae99791da | 63 | client.send_all(buffer, n); |
emilmont | 1:5cebe0e38cd2 | 64 | if (n <= 0) break; |
emilmont | 1:5cebe0e38cd2 | 65 | } |
emilmont | 3:36fd3cfad85a | 66 | |
emilmont | 1:5cebe0e38cd2 | 67 | client.close(); |
emilmont | 1:5cebe0e38cd2 | 68 | } |
emilmont | 1:5cebe0e38cd2 | 69 | } |