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
|
/*
* Copyright (C) 2014 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <stdio_ext.h>
#include <stdio.h>
#include "local.h"
#define FSETLOCKING_QUERY 0
#define FSETLOCKING_INTERNAL 1
#define FSETLOCKING_BYCALLER 2
size_t __fbufsize(FILE* fp) {
return fp->_bf._size;
}
/* For a _SRW stream, we don't know whether we last read or wrote.
int __freading(FILE* fp) {
return (fp->_flags & _SRD) != 0 || ...;
}
*/
/* For a _SRW stream, we don't know whether we last read or wrote.
int __fwriting(FILE*) {
return (fp->_flags & _SWR) != 0 || ...;
}
*/
int __freadable(FILE* fp) {
return (fp->_flags & (__SRD|__SRW)) != 0;
}
int __fwritable(FILE* fp) {
return (fp->_flags & (__SWR|__SRW)) != 0;
}
int __flbf(FILE* fp) {
return (fp->_flags & __SLBF) != 0;
}
void __fpurge(FILE* fp) {
fpurge(fp);
}
size_t __fpending(FILE* fp) {
return fp->_p - fp->_bf._base;
}
void _flushlbf() {
// If we flush all streams, we know we've flushed all the line-buffered streams.
fflush(NULL);
}
int __fsetlocking(FILE*, int) {
// We don't currently have an implementation that would obey this,
// so make setting the state a no-op and always return "we handle locking for you".
// http://b/17154740 suggests ways we could fix this.
return FSETLOCKING_INTERNAL;
}
void clearerr_unlocked(FILE* fp) {
return __sclearerr(fp);
}
int feof_unlocked(FILE* fp) {
return __sfeof(fp);
}
int ferror_unlocked(FILE* fp) {
return __sferror(fp);
}
|
