Added monitoring feature of ESP8266's UART
Dependents: ESP8266_W7500_Example DualNetworkInterface-Basic
Fork of ESP8266Interface by
Socket/UDPSocket.cpp@22:c4360e61486a, 2014-12-02 (annotated)
- Committer:
- michaeljkoster
- Date:
- Tue Dec 02 16:02:21 2014 +0000
- Revision:
- 22:c4360e61486a
- Parent:
- 21:690526f05fe6
- Child:
- 23:de9221771e96
Add state.cmdMode and some cleanup
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
samux | 1:fb4494783863 | 1 | /* Copyright (C) 2012 mbed.org, MIT License |
samux | 1:fb4494783863 | 2 | * |
samux | 1:fb4494783863 | 3 | * Permission is hereby granted, free of charge, to any person obtaining a copy of this software |
samux | 1:fb4494783863 | 4 | * and associated documentation files (the "Software"), to deal in the Software without restriction, |
samux | 1:fb4494783863 | 5 | * including without limitation the rights to use, copy, modify, merge, publish, distribute, |
samux | 1:fb4494783863 | 6 | * sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is |
samux | 1:fb4494783863 | 7 | * furnished to do so, subject to the following conditions: |
samux | 1:fb4494783863 | 8 | * |
samux | 1:fb4494783863 | 9 | * The above copyright notice and this permission notice shall be included in all copies or |
samux | 1:fb4494783863 | 10 | * substantial portions of the Software. |
samux | 1:fb4494783863 | 11 | * |
samux | 1:fb4494783863 | 12 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING |
samux | 1:fb4494783863 | 13 | * BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
samux | 1:fb4494783863 | 14 | * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, |
samux | 1:fb4494783863 | 15 | * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
samux | 1:fb4494783863 | 16 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. |
samux | 1:fb4494783863 | 17 | */ |
samux | 1:fb4494783863 | 18 | |
samux | 1:fb4494783863 | 19 | #include "UDPSocket.h" |
samux | 1:fb4494783863 | 20 | |
samux | 1:fb4494783863 | 21 | #include <string> |
samux | 1:fb4494783863 | 22 | #include <algorithm> |
samux | 1:fb4494783863 | 23 | |
michaeljkoster | 12:c5f0eac67a8a | 24 | extern Serial pc; |
michaeljkoster | 12:c5f0eac67a8a | 25 | |
samux | 1:fb4494783863 | 26 | UDPSocket::UDPSocket() |
samux | 1:fb4494783863 | 27 | { |
samux | 1:fb4494783863 | 28 | endpoint_configured = false; |
samux | 1:fb4494783863 | 29 | endpoint_read = false; |
michaeljkoster | 19:fb8d5bff2076 | 30 | Endpoint currentEndpoint; |
samux | 1:fb4494783863 | 31 | } |
samux | 1:fb4494783863 | 32 | |
samux | 1:fb4494783863 | 33 | int UDPSocket::init(void) |
samux | 1:fb4494783863 | 34 | { |
samux | 1:fb4494783863 | 35 | return 0; |
samux | 1:fb4494783863 | 36 | } |
samux | 1:fb4494783863 | 37 | |
samux | 1:fb4494783863 | 38 | // Server initialization |
samux | 1:fb4494783863 | 39 | int UDPSocket::bind(int port) |
samux | 1:fb4494783863 | 40 | { |
samux | 1:fb4494783863 | 41 | return 0; |
samux | 1:fb4494783863 | 42 | } |
samux | 1:fb4494783863 | 43 | |
samux | 1:fb4494783863 | 44 | // -1 if unsuccessful, else number of bytes written |
samux | 1:fb4494783863 | 45 | int UDPSocket::sendTo(Endpoint &remote, char *packet, int length) |
samux | 1:fb4494783863 | 46 | { |
samux | 1:fb4494783863 | 47 | Timer tmr; |
samux | 1:fb4494783863 | 48 | int idx = 0; |
samux | 1:fb4494783863 | 49 | |
samux | 1:fb4494783863 | 50 | confEndpoint(remote); |
samux | 1:fb4494783863 | 51 | |
samux | 1:fb4494783863 | 52 | tmr.start(); |
samux | 1:fb4494783863 | 53 | |
samux | 1:fb4494783863 | 54 | while ((tmr.read_ms() < _timeout) || _blocking) { |
samux | 1:fb4494783863 | 55 | |
samux | 1:fb4494783863 | 56 | idx += wifi->send(packet, length); |
samux | 1:fb4494783863 | 57 | |
samux | 1:fb4494783863 | 58 | if (idx == length) |
samux | 1:fb4494783863 | 59 | return idx; |
samux | 1:fb4494783863 | 60 | } |
samux | 1:fb4494783863 | 61 | return (idx == 0) ? -1 : idx; |
samux | 1:fb4494783863 | 62 | } |
samux | 1:fb4494783863 | 63 | |
samux | 1:fb4494783863 | 64 | // -1 if unsuccessful, else number of bytes received |
samux | 1:fb4494783863 | 65 | int UDPSocket::receiveFrom(Endpoint &remote, char *buffer, int length) |
samux | 1:fb4494783863 | 66 | { |
samux | 1:fb4494783863 | 67 | Timer tmr; |
samux | 1:fb4494783863 | 68 | int idx = 0; |
samux | 1:fb4494783863 | 69 | int nb_available = 0; |
samux | 1:fb4494783863 | 70 | int time = -1; |
michaeljkoster | 22:c4360e61486a | 71 | tmr.start(); |
michaeljkoster | 22:c4360e61486a | 72 | |
samux | 1:fb4494783863 | 73 | if (_blocking) { |
samux | 1:fb4494783863 | 74 | while (1) { |
samux | 1:fb4494783863 | 75 | nb_available = wifi->readable(); |
samux | 1:fb4494783863 | 76 | if (nb_available != 0) { |
samux | 1:fb4494783863 | 77 | break; |
samux | 1:fb4494783863 | 78 | } |
samux | 1:fb4494783863 | 79 | } |
michaeljkoster | 21:690526f05fe6 | 80 | } |
michaeljkoster | 21:690526f05fe6 | 81 | else { |
michaeljkoster | 22:c4360e61486a | 82 | tmr.reset(); |
michaeljkoster | 21:690526f05fe6 | 83 | |
michaeljkoster | 21:690526f05fe6 | 84 | while (time < _timeout){ |
michaeljkoster | 21:690526f05fe6 | 85 | nb_available = wifi->readable(); |
michaeljkoster | 21:690526f05fe6 | 86 | if (nb_available < 0) return nb_available; |
michaeljkoster | 21:690526f05fe6 | 87 | if (nb_available > 0) break ; |
michaeljkoster | 21:690526f05fe6 | 88 | time = tmr.read_ms(); |
michaeljkoster | 21:690526f05fe6 | 89 | } |
michaeljkoster | 21:690526f05fe6 | 90 | |
michaeljkoster | 21:690526f05fe6 | 91 | if (nb_available == 0) return nb_available; |
michaeljkoster | 21:690526f05fe6 | 92 | } |
michaeljkoster | 21:690526f05fe6 | 93 | |
michaeljkoster | 22:c4360e61486a | 94 | tmr.reset(); |
samux | 1:fb4494783863 | 95 | while (time < _timeout) { |
samux | 1:fb4494783863 | 96 | |
samux | 1:fb4494783863 | 97 | nb_available = wifi->readable(); |
samux | 1:fb4494783863 | 98 | for (int i = 0; i < min(nb_available, length); i++) { |
samux | 1:fb4494783863 | 99 | buffer[idx] = wifi->getc(); |
samux | 1:fb4494783863 | 100 | idx++; |
samux | 1:fb4494783863 | 101 | } |
samux | 1:fb4494783863 | 102 | |
samux | 1:fb4494783863 | 103 | if (idx == length) { |
samux | 1:fb4494783863 | 104 | break; |
samux | 1:fb4494783863 | 105 | } |
samux | 1:fb4494783863 | 106 | |
samux | 1:fb4494783863 | 107 | time = tmr.read_ms(); |
samux | 1:fb4494783863 | 108 | } |
samux | 1:fb4494783863 | 109 | readEndpoint(remote); |
samux | 1:fb4494783863 | 110 | return (idx == 0) ? -1 : idx; |
samux | 1:fb4494783863 | 111 | } |
samux | 1:fb4494783863 | 112 | |
samux | 1:fb4494783863 | 113 | bool UDPSocket::confEndpoint(Endpoint & ep) |
samux | 1:fb4494783863 | 114 | { |
michaeljkoster | 19:fb8d5bff2076 | 115 | currentEndpoint = ep; |
samux | 1:fb4494783863 | 116 | return true; |
samux | 1:fb4494783863 | 117 | } |
samux | 1:fb4494783863 | 118 | |
samux | 1:fb4494783863 | 119 | bool UDPSocket::readEndpoint(Endpoint & ep) |
samux | 1:fb4494783863 | 120 | { |
michaeljkoster | 19:fb8d5bff2076 | 121 | ep = currentEndpoint; |
michaeljkoster | 16:3f0efaa57a12 | 122 | return true; |
samux | 1:fb4494783863 | 123 | } |