[144] | 1 | /*
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| 2 | Copyright (C) 2015 Embedded and Real-Time Systems Laboratory
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| 3 | Graduate School of Information Science, Nagoya Univ., JAPAN
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| 4 |
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| 5 | This library is free software; you can redistribute it and/or
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| 6 | modify it under the terms of the GNU Lesser General Public
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| 7 | License as published by the Free Software Foundation; either
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| 8 | version 2.1 of the License, or (at your option) any later version.
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| 9 | This library is distributed in the hope that it will be useful,
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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| 12 | Lesser General Public License for more details.
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| 13 | You should have received a copy of the GNU Lesser General Public
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| 14 | License along with this library; if not, write to the Free Software
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| 15 | Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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| 16 | */
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| 17 |
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| 18 | #ifndef _CLIENT_ESP8366_H_
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| 19 | #define _CLIENT_ESP8366_H_
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| 20 | #include "Print.h"
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| 21 | #include "Stream.h"
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| 22 | #include "IPAddress.h"
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| 23 | #include "ESP8266.h"
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| 24 |
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| 25 | #define ESP8266CLIENT_BUFFER_LEN 512
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| 26 |
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| 27 | class ESP8266Client: public Client, public ESP8266 {
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| 28 |
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| 29 | public:
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| 30 | /*
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| 31 | * @retval 0 : faild
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| 32 | * @retval 1 : success
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| 33 | */
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| 34 | int connect(IPAddress ip, uint16_t port) {
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| 35 | String ip_str;
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| 36 | bufferlen= 0;
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| 37 | ip_str.concat(ip[0]);
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| 38 | ip_str.concat(".");
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| 39 | ip_str.concat(ip[1]);
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| 40 | ip_str.concat(".");
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| 41 | ip_str.concat(ip[2]);
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| 42 | ip_str.concat(".");
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| 43 | ip_str.concat(ip[3]);
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| 44 | _connected = (createTCP(ip_str, port))? 1 : 0;
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| 45 | return (int)_connected;
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| 46 | };
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| 47 |
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| 48 | int connect(const char *host, uint16_t port) {
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| 49 | String ip_str(host);
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| 50 | bufferlen= 0;
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| 51 | _connected = (createTCP(ip_str, port))? 1 : 0;
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| 52 | return (int)_connected;
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| 53 | };
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| 54 |
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| 55 | size_t write(uint8_t data) {
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| 56 | if(send(&data, 1)){
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| 57 | return 1;
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| 58 | }
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| 59 | else {
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| 60 | return 0;
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| 61 | }
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| 62 | };
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| 63 | size_t write(const uint8_t *buf, size_t size){
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| 64 | if(send(buf, size)){
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| 65 | return size;
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| 66 | }
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| 67 | else {
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| 68 | return 0;
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| 69 | }
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| 70 | };
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[169] | 71 | int available(){
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| 72 | if (bufferlen > 0) {
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| 73 | return 1;
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| 74 | }
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| 75 | if (dataAvailable()) {
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| 76 | bufferlen = recv(buffer, ESP8266CLIENT_BUFFER_LEN);
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| 77 | pbuffer = buffer;
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[170] | 78 | //In case of that data is available but it is not valid data(not +IPD,...),
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[169] | 79 | //connection is closed by server.(send "CLOSED")
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| 80 | if(bufferlen == 0){
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| 81 | _connected = 0;
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| 82 | releaseTCP();
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| 83 | return 0;
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| 84 | }
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| 85 | return 1;
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| 86 | }
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| 87 | return 0;
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| 88 | };
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[144] | 89 | int read(){
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| 90 | if (bufferlen == 0) {
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| 91 | bufferlen = recv(buffer, ESP8266CLIENT_BUFFER_LEN);
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| 92 | pbuffer = buffer;
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| 93 | }
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| 94 | if (bufferlen > 0){
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| 95 | bufferlen--;
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| 96 | return *pbuffer++;
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| 97 | }
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| 98 | else {
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| 99 | return (int)-1;
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| 100 | }
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| 101 | };
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| 102 | int read(uint8_t *buf, size_t size){return recv(buf, size);};
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| 103 | int peek(){return 1;};
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| 104 | void flush(){};
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| 105 | void stop(){releaseTCP();};
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| 106 | uint8_t connected(){return _connected;};
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| 107 | operator bool(){return (bool)(_connected == 1);};
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| 108 | private:
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| 109 | uint8_t _connected;
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| 110 | uint8_t buffer[ESP8266CLIENT_BUFFER_LEN];
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| 111 | uint8_t bufferlen;
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| 112 | uint8_t *pbuffer;
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| 113 | };
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| 114 |
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| 115 | #endif /* _CLIENT_ESP8366_H_ */
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