MQTT client test with W5200 ethernet shield
Dependents: IBMIoTClientEthernetExample_W5200
Fork of W5500Interface by
DNSClient/pico_string.h@11:313e091ab3f9, 2014-12-25 (annotated)
- Committer:
- hillkim7
- Date:
- Thu Dec 25 11:18:46 2014 +0000
- Revision:
- 11:313e091ab3f9
- Parent:
- 0:e11e8793c3ce
The IBM MQTT client demo program that is tested with Nucleo F401 and Seeedstudio Ethernet Shield. It is based on Wiznet sample program.
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Bongjun | 0:e11e8793c3ce | 1 | // pico_string.h 2013/8/27 |
Bongjun | 0:e11e8793c3ce | 2 | #pragma once |
Bongjun | 0:e11e8793c3ce | 3 | class pico_string { |
Bongjun | 0:e11e8793c3ce | 4 | public: |
Bongjun | 0:e11e8793c3ce | 5 | pico_string(){ |
Bongjun | 0:e11e8793c3ce | 6 | _len = 0; |
Bongjun | 0:e11e8793c3ce | 7 | _buf = (char*)malloc(1); |
Bongjun | 0:e11e8793c3ce | 8 | if (_buf) { |
Bongjun | 0:e11e8793c3ce | 9 | _buf[0] = '\0'; |
Bongjun | 0:e11e8793c3ce | 10 | } |
Bongjun | 0:e11e8793c3ce | 11 | } |
Bongjun | 0:e11e8793c3ce | 12 | ~pico_string() { |
Bongjun | 0:e11e8793c3ce | 13 | if (_buf) { |
Bongjun | 0:e11e8793c3ce | 14 | free(_buf); |
Bongjun | 0:e11e8793c3ce | 15 | } |
Bongjun | 0:e11e8793c3ce | 16 | } |
Bongjun | 0:e11e8793c3ce | 17 | bool empty() { |
Bongjun | 0:e11e8793c3ce | 18 | return _len == 0; |
Bongjun | 0:e11e8793c3ce | 19 | } |
Bongjun | 0:e11e8793c3ce | 20 | void append(const char* s, int len) { |
Bongjun | 0:e11e8793c3ce | 21 | if (_buf == NULL) { |
Bongjun | 0:e11e8793c3ce | 22 | return; |
Bongjun | 0:e11e8793c3ce | 23 | } |
Bongjun | 0:e11e8793c3ce | 24 | char* p = (char*)malloc(_len+len+1); |
Bongjun | 0:e11e8793c3ce | 25 | if (p == NULL) { |
Bongjun | 0:e11e8793c3ce | 26 | return; |
Bongjun | 0:e11e8793c3ce | 27 | } |
Bongjun | 0:e11e8793c3ce | 28 | memcpy(p, _buf, _len); |
Bongjun | 0:e11e8793c3ce | 29 | memcpy(p+_len, s, len); |
Bongjun | 0:e11e8793c3ce | 30 | p[_len+len] = '\0'; |
Bongjun | 0:e11e8793c3ce | 31 | free(_buf); |
Bongjun | 0:e11e8793c3ce | 32 | _buf = p; |
Bongjun | 0:e11e8793c3ce | 33 | } |
Bongjun | 0:e11e8793c3ce | 34 | void append(const char* s) { |
Bongjun | 0:e11e8793c3ce | 35 | append(s, strlen(s)); |
Bongjun | 0:e11e8793c3ce | 36 | } |
Bongjun | 0:e11e8793c3ce | 37 | char* c_str() { |
Bongjun | 0:e11e8793c3ce | 38 | if (_buf) { |
Bongjun | 0:e11e8793c3ce | 39 | return _buf; |
Bongjun | 0:e11e8793c3ce | 40 | } |
Bongjun | 0:e11e8793c3ce | 41 | return ""; |
Bongjun | 0:e11e8793c3ce | 42 | } |
Bongjun | 0:e11e8793c3ce | 43 | private: |
Bongjun | 0:e11e8793c3ce | 44 | char* _buf; |
Bongjun | 0:e11e8793c3ce | 45 | int _len; |
Bongjun | 0:e11e8793c3ce | 46 | }; |