1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
/*
Copyright (c) 2013 Arduino LLC. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <FileIO.h>
File::File() : mode(255), filename(NULL) {
// Empty
}
File::File(const char *_filename, uint8_t _mode) : mode(_mode) {
filename = new char[strlen(_filename)+1];
strcpy(filename, _filename);
}
File::operator bool() {
return (mode != 255);
}
File::~File() {
if (filename)
delete[] filename;
}
char toHex(uint8_t c) {
if (c<10)
return '0' + c;
else
return 'A' + c - 10;
}
size_t File::write(uint8_t c) {
Process echo;
echo.begin("arduino-append");
echo.addParameter(filename);
char chars[] = { '\\', 'x', toHex(c >> 4), toHex(c & 0x0F), '\0' };
echo.addParameter(chars);
echo.run();
return 1;
}
size_t File::write(const uint8_t *buf, size_t size) {
Process echo;
echo.begin("arduino-append");
echo.addParameter(filename);
echo.addParameter(" \"", true);
for (unsigned int i=0; i<size; i++) {
// slow but requires less memory
char c = buf[i];
char chars[] = { '\\', 'x', toHex(c >> 4), toHex(c & 0x0F), '\0' };
echo.addParameter(chars, true);
}
echo.addParameter("\"", true);
echo.run();
return size;
}
int File::read() {
return 1;
}
int File::peek() {
return 1;
}
int File::available() {
return 1;
}
void File::flush() {
}
//int read(void *buf, uint16_t nbyte)
//boolean seek(uint32_t pos)
//uint32_t position()
//uint32_t size()
void File::close() {
mode = 255;
}
char *File::name() {
return filename;
}
//boolean isDirectory(void)
//File openNextFile(uint8_t mode = O_RDONLY);
//void rewindDirectory(void)
boolean SDClass::begin() {
return true;
}
File SDClass::open(const char *filename, uint8_t mode) {
if (mode == FILE_READ) {
if (exists(filename))
return File(filename, mode);
}
if (mode == FILE_WRITE) {
Process touch;
touch.begin(">");
touch.addParameter(filename);
int res = touch.run();
if (res == 0)
return File(filename, mode);
}
return File();
}
boolean SDClass::exists(const char *filepath) {
Process ls;
ls.begin("ls");
ls.addParameter(filepath);
int res = ls.run();
return (res == 0);
}
boolean SDClass::mkdir(const char *filepath) {
Process mk;
mk.begin("mkdir");
mk.addParameter("-p");
mk.addParameter(filepath);
int res = mk.run();
return (res == 0);
}
boolean SDClass::remove(const char *filepath) {
Process rm;
rm.begin("rm");
rm.addParameter(filepath);
int res = rm.run();
return (res == 0);
}
boolean SDClass::rmdir(const char *filepath) {
Process rm;
rm.begin("rmdir");
rm.addParameter(filepath);
int res = rm.run();
return (res == 0);
}
SDClass SD;
|
