Emulation of LocalFileSystem with virtual COM.
Dependents: KL46Z-lpc81isp lpcterm2
#include "USBLocalFileSystem.h" int main() { USBLocalFileSystem* usb_local = new USBLocalFileSystem(); // RamDisk(64KB) while(1) { usb_local->lock(true); usb_local->remount(); char filename[32]; if (usb_local->find(filename, sizeof(filename), "*.TXT")) { FILE* fp = fopen(filename, "r"); if (fp) { int c; while((c = fgetc(fp)) != EOF) { usb_local->putc(c); } fclose(fp); } } usb_local->lock(false); wait_ms(1000*5); } }
Sample application:
Import programKL46Z-lpc81isp
ISP example program.
Import programlpcterm2
semihost server example program
src/mystring.h@0:39eb4d5b97df, 2014-05-03 (annotated)
- Committer:
- va009039
- Date:
- Sat May 03 11:21:37 2014 +0000
- Revision:
- 0:39eb4d5b97df
first commit
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
va009039 | 0:39eb4d5b97df | 1 | #include <stdlib.h> |
va009039 | 0:39eb4d5b97df | 2 | #include <string.h> |
va009039 | 0:39eb4d5b97df | 3 | #pragma once |
va009039 | 0:39eb4d5b97df | 4 | class mystring { |
va009039 | 0:39eb4d5b97df | 5 | public: |
va009039 | 0:39eb4d5b97df | 6 | mystring(){ |
va009039 | 0:39eb4d5b97df | 7 | _init(); |
va009039 | 0:39eb4d5b97df | 8 | } |
va009039 | 0:39eb4d5b97df | 9 | mystring(const char* s) { |
va009039 | 0:39eb4d5b97df | 10 | _init(); |
va009039 | 0:39eb4d5b97df | 11 | append(s); |
va009039 | 0:39eb4d5b97df | 12 | } |
va009039 | 0:39eb4d5b97df | 13 | |
va009039 | 0:39eb4d5b97df | 14 | ~mystring() { |
va009039 | 0:39eb4d5b97df | 15 | if (_buf) { |
va009039 | 0:39eb4d5b97df | 16 | free(_buf); |
va009039 | 0:39eb4d5b97df | 17 | } |
va009039 | 0:39eb4d5b97df | 18 | } |
va009039 | 0:39eb4d5b97df | 19 | void clear() { |
va009039 | 0:39eb4d5b97df | 20 | if (_buf) { |
va009039 | 0:39eb4d5b97df | 21 | free(_buf); |
va009039 | 0:39eb4d5b97df | 22 | } |
va009039 | 0:39eb4d5b97df | 23 | _init(); |
va009039 | 0:39eb4d5b97df | 24 | } |
va009039 | 0:39eb4d5b97df | 25 | bool empty() { |
va009039 | 0:39eb4d5b97df | 26 | return _len == 0; |
va009039 | 0:39eb4d5b97df | 27 | } |
va009039 | 0:39eb4d5b97df | 28 | size_t size() { |
va009039 | 0:39eb4d5b97df | 29 | return _len; |
va009039 | 0:39eb4d5b97df | 30 | } |
va009039 | 0:39eb4d5b97df | 31 | void append(const char* s, int len) { |
va009039 | 0:39eb4d5b97df | 32 | if (_buf == NULL) { |
va009039 | 0:39eb4d5b97df | 33 | return; |
va009039 | 0:39eb4d5b97df | 34 | } |
va009039 | 0:39eb4d5b97df | 35 | int new_len = _len + len; |
va009039 | 0:39eb4d5b97df | 36 | char* new_buf = (char*)malloc(new_len + 1); |
va009039 | 0:39eb4d5b97df | 37 | if (new_buf == NULL) { |
va009039 | 0:39eb4d5b97df | 38 | return; |
va009039 | 0:39eb4d5b97df | 39 | } |
va009039 | 0:39eb4d5b97df | 40 | memcpy(new_buf, _buf, _len); |
va009039 | 0:39eb4d5b97df | 41 | memcpy(new_buf+_len, s, len); |
va009039 | 0:39eb4d5b97df | 42 | new_buf[_len+len] = '\0'; |
va009039 | 0:39eb4d5b97df | 43 | free(_buf); |
va009039 | 0:39eb4d5b97df | 44 | _buf = new_buf; |
va009039 | 0:39eb4d5b97df | 45 | _len += new_len; |
va009039 | 0:39eb4d5b97df | 46 | } |
va009039 | 0:39eb4d5b97df | 47 | void append(const char* s) { |
va009039 | 0:39eb4d5b97df | 48 | append(s, strlen(s)); |
va009039 | 0:39eb4d5b97df | 49 | } |
va009039 | 0:39eb4d5b97df | 50 | void append(int c) { |
va009039 | 0:39eb4d5b97df | 51 | char buf[1]; |
va009039 | 0:39eb4d5b97df | 52 | buf[0] = c; |
va009039 | 0:39eb4d5b97df | 53 | append(buf, sizeof(buf)); |
va009039 | 0:39eb4d5b97df | 54 | } |
va009039 | 0:39eb4d5b97df | 55 | char* c_str() { |
va009039 | 0:39eb4d5b97df | 56 | if (_buf) { |
va009039 | 0:39eb4d5b97df | 57 | return _buf; |
va009039 | 0:39eb4d5b97df | 58 | } |
va009039 | 0:39eb4d5b97df | 59 | return ""; |
va009039 | 0:39eb4d5b97df | 60 | } |
va009039 | 0:39eb4d5b97df | 61 | mystring& operator= (const char* s) { |
va009039 | 0:39eb4d5b97df | 62 | _init(); |
va009039 | 0:39eb4d5b97df | 63 | append(s); |
va009039 | 0:39eb4d5b97df | 64 | return *this; |
va009039 | 0:39eb4d5b97df | 65 | } |
va009039 | 0:39eb4d5b97df | 66 | mystring& operator+= (const char* s) { |
va009039 | 0:39eb4d5b97df | 67 | append(s); |
va009039 | 0:39eb4d5b97df | 68 | return *this; |
va009039 | 0:39eb4d5b97df | 69 | } |
va009039 | 0:39eb4d5b97df | 70 | char& operator[] (size_t pos) { |
va009039 | 0:39eb4d5b97df | 71 | return _buf[pos]; |
va009039 | 0:39eb4d5b97df | 72 | } |
va009039 | 0:39eb4d5b97df | 73 | private: |
va009039 | 0:39eb4d5b97df | 74 | void _init() { |
va009039 | 0:39eb4d5b97df | 75 | _len = 0; |
va009039 | 0:39eb4d5b97df | 76 | _buf = (char*)malloc(1); |
va009039 | 0:39eb4d5b97df | 77 | if (_buf) { |
va009039 | 0:39eb4d5b97df | 78 | _buf[0] = '\0'; |
va009039 | 0:39eb4d5b97df | 79 | } |
va009039 | 0:39eb4d5b97df | 80 | } |
va009039 | 0:39eb4d5b97df | 81 | char* _buf; |
va009039 | 0:39eb4d5b97df | 82 | int _len; |
va009039 | 0:39eb4d5b97df | 83 | }; |