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
|
/* the Music Player Daemon (MPD)
* (c)2003-2004 by Warren Dukes (shank@mercury.chem.pitt.edu)
* This project's homepage is: http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "inputStream_file.h"
#include "log.h"
#include <stdio.h>
#include <string.h>
#include <sys/types.h>
#include <unistd.h>
#include <errno.h>
void inputStream_initFile() {
}
int inputStream_fileOpen(InputStream * inStream, char * filename) {
FILE * fp;
fp = fopen(filename,"r");
if(!fp) {
inStream->error = errno;
return -1;
}
inStream->seekable = 1;
fseek(fp,0,SEEK_END);
inStream->size = ftell(fp);
fseek(fp,0,SEEK_SET);
inStream->data = fp;
inStream->seekFunc = inputStream_fileSeek;
inStream->closeFunc = inputStream_fileClose;
inStream->readFunc = inputStream_fileRead;
inStream->atEOFFunc = inputStream_fileAtEOF;
inStream->bufferFunc = inputStream_fileBuffer;
return 0;
}
int inputStream_fileSeek(InputStream * inStream, long offset, int whence) {
if(fseek((FILE *)inStream->data,offset,whence)==0) {
inStream->offset = ftell((FILE *)inStream->data);
}
else {
inStream->error = errno;
return -1;
}
return 0;
}
size_t inputStream_fileRead(InputStream * inStream, void * ptr, size_t size,
size_t nmemb)
{
size_t readSize;
readSize = fread(ptr,size,nmemb,(FILE *)inStream->data);
if(readSize <=0 && ferror((FILE *)inStream->data)) {
inStream->error = errno;
DEBUG("inputStream_fileRead: error reading: %s",
strerror(inStream->error));
}
inStream->offset = ftell((FILE *)inStream->data);
return readSize;
}
int inputStream_fileClose(InputStream * inStream) {
if(fclose((FILE *)inStream->data)<0) {
inStream->error = errno;
}
else return -1;
return 0;
}
int inputStream_fileAtEOF(InputStream * inStream) {
if(feof((FILE *)inStream->data)) return 1;
if(ferror((FILE *)inStream->data) && inStream->error != EINTR) {
return 1;
}
return 0;
}
int inputStream_fileBuffer(InputStream * inStream) {
return 0;
}
|
