A simple UDP logger that lets you send messages via UDP to a remote host. It's a cheap implementation for logging to a remove host via UDP. Note, the logger is uses UDP sockets provided by NetServices (https://mbed.org/cookbook/NetServices). After you are ready with the network setup (eth.setup()...), just call Log::init(), so the logger would create its local socket, and then you can log any text via Log::log(); Also note that the logger won't do any net polls (eth.poll()) to save computing time, so it's up to you to handle it.
UDPLogger.h@0:959f4bf01f37, 2012-03-04 (annotated)
- Committer:
- screamer
- Date:
- Sun Mar 04 20:42:10 2012 +0000
- Revision:
- 0:959f4bf01f37
initial release
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
screamer | 0:959f4bf01f37 | 1 | |
screamer | 0:959f4bf01f37 | 2 | /* |
screamer | 0:959f4bf01f37 | 3 | Copyright (c) 2012 Mihail Stoyanov (wm [at] screamer [dot] org) |
screamer | 0:959f4bf01f37 | 4 | |
screamer | 0:959f4bf01f37 | 5 | Permission is hereby granted, free of charge, to any person obtaining a copy |
screamer | 0:959f4bf01f37 | 6 | of this software and associated documentation files (the "Software"), to deal |
screamer | 0:959f4bf01f37 | 7 | in the Software without restriction, including without limitation the rights |
screamer | 0:959f4bf01f37 | 8 | to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
screamer | 0:959f4bf01f37 | 9 | copies of the Software, and to permit persons to whom the Software is |
screamer | 0:959f4bf01f37 | 10 | furnished to do so, subject to the following conditions: |
screamer | 0:959f4bf01f37 | 11 | |
screamer | 0:959f4bf01f37 | 12 | The above copyright notice and this permission notice shall be included in |
screamer | 0:959f4bf01f37 | 13 | all copies or substantial portions of the Software. |
screamer | 0:959f4bf01f37 | 14 | |
screamer | 0:959f4bf01f37 | 15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
screamer | 0:959f4bf01f37 | 16 | IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
screamer | 0:959f4bf01f37 | 17 | FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
screamer | 0:959f4bf01f37 | 18 | AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
screamer | 0:959f4bf01f37 | 19 | LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
screamer | 0:959f4bf01f37 | 20 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
screamer | 0:959f4bf01f37 | 21 | THE SOFTWARE. |
screamer | 0:959f4bf01f37 | 22 | */ |
screamer | 0:959f4bf01f37 | 23 | |
screamer | 0:959f4bf01f37 | 24 | |
screamer | 0:959f4bf01f37 | 25 | #ifndef LOG_H |
screamer | 0:959f4bf01f37 | 26 | #define LOG_H |
screamer | 0:959f4bf01f37 | 27 | |
screamer | 0:959f4bf01f37 | 28 | #include "mbed.h" |
screamer | 0:959f4bf01f37 | 29 | #include "UDPSocket.h" |
screamer | 0:959f4bf01f37 | 30 | |
screamer | 0:959f4bf01f37 | 31 | |
screamer | 0:959f4bf01f37 | 32 | class Log { |
screamer | 0:959f4bf01f37 | 33 | private: |
screamer | 0:959f4bf01f37 | 34 | UDPSocket sock; |
screamer | 0:959f4bf01f37 | 35 | int lPort; |
screamer | 0:959f4bf01f37 | 36 | Host lHost; |
screamer | 0:959f4bf01f37 | 37 | Host dHost; |
screamer | 0:959f4bf01f37 | 38 | |
screamer | 0:959f4bf01f37 | 39 | bool is_init; |
screamer | 0:959f4bf01f37 | 40 | |
screamer | 0:959f4bf01f37 | 41 | public: |
screamer | 0:959f4bf01f37 | 42 | ///Constructor |
screamer | 0:959f4bf01f37 | 43 | /** |
screamer | 0:959f4bf01f37 | 44 | @param port : local UDP bind port even though the logger doesn't acccept messages |
screamer | 0:959f4bf01f37 | 45 | */ |
screamer | 0:959f4bf01f37 | 46 | Log (int port = 10000) { |
screamer | 0:959f4bf01f37 | 47 | lPort = port; |
screamer | 0:959f4bf01f37 | 48 | }; |
screamer | 0:959f4bf01f37 | 49 | |
screamer | 0:959f4bf01f37 | 50 | ///The actual init method, which should be called after the ethernet is initialized |
screamer | 0:959f4bf01f37 | 51 | /** |
screamer | 0:959f4bf01f37 | 52 | @param pHost : the destination UDP server - Host dHost(IpAddr(1,2,3,4), port) |
screamer | 0:959f4bf01f37 | 53 | |
screamer | 0:959f4bf01f37 | 54 | Can be called multiple times to switch destination UDP servers |
screamer | 0:959f4bf01f37 | 55 | */ |
screamer | 0:959f4bf01f37 | 56 | inline bool init(Host pHost) { |
screamer | 0:959f4bf01f37 | 57 | Host lHost(IpAddr(), lPort); |
screamer | 0:959f4bf01f37 | 58 | |
screamer | 0:959f4bf01f37 | 59 | UDPSocketErr udpErr = sock.bind(lHost); |
screamer | 0:959f4bf01f37 | 60 | if (udpErr != UDPSOCKET_OK) { |
screamer | 0:959f4bf01f37 | 61 | printf("error %d\n", udpErr); |
screamer | 0:959f4bf01f37 | 62 | return false; |
screamer | 0:959f4bf01f37 | 63 | }; |
screamer | 0:959f4bf01f37 | 64 | |
screamer | 0:959f4bf01f37 | 65 | dHost = pHost; |
screamer | 0:959f4bf01f37 | 66 | is_init = true; |
screamer | 0:959f4bf01f37 | 67 | |
screamer | 0:959f4bf01f37 | 68 | return true; |
screamer | 0:959f4bf01f37 | 69 | }; |
screamer | 0:959f4bf01f37 | 70 | |
screamer | 0:959f4bf01f37 | 71 | ///The logging method. |
screamer | 0:959f4bf01f37 | 72 | inline bool log(const char *msg) { |
screamer | 0:959f4bf01f37 | 73 | if (!is_init) return false; |
screamer | 0:959f4bf01f37 | 74 | |
screamer | 0:959f4bf01f37 | 75 | int sent = sock.sendto(msg, strlen(msg), &dHost); |
screamer | 0:959f4bf01f37 | 76 | if (sent < 0) { |
screamer | 0:959f4bf01f37 | 77 | printf("error %d\n", (UDPSocketErr)sent); |
screamer | 0:959f4bf01f37 | 78 | }; |
screamer | 0:959f4bf01f37 | 79 | |
screamer | 0:959f4bf01f37 | 80 | return true; |
screamer | 0:959f4bf01f37 | 81 | }; |
screamer | 0:959f4bf01f37 | 82 | }; |
screamer | 0:959f4bf01f37 | 83 | |
screamer | 0:959f4bf01f37 | 84 | #endif |