ObjFW
OFSeekableStream.h
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1 /*
2  * Copyright (c) 2008-2024 Jonathan Schleifer <js@nil.im>
3  *
4  * All rights reserved.
5  *
6  * This file is part of ObjFW. It may be distributed under the terms of the
7  * Q Public License 1.0, which can be found in the file LICENSE.QPL included in
8  * the packaging of this file.
9  *
10  * Alternatively, it may be distributed under the terms of the GNU General
11  * Public License, either version 2 or 3, which can be found in the file
12  * LICENSE.GPLv2 or LICENSE.GPLv3 respectively included in the packaging of this
13  * file.
14  */
15 
16 #ifndef __STDC_LIMIT_MACROS
17 # define __STDC_LIMIT_MACROS
18 #endif
19 #ifndef __STDC_CONSTANT_MACROS
20 # define __STDC_CONSTANT_MACROS
21 #endif
22 
23 #include "objfw-defs.h"
24 
25 #ifdef OF_HAVE_SYS_TYPES_H
26 # include <sys/types.h>
27 #endif
28 
29 #import "OFStream.h"
30 
31 OF_ASSUME_NONNULL_BEGIN
32 
35 #if defined(OF_WINDOWS)
36 typedef __int64 OFStreamOffset;
37 #elif defined(OF_ANDROID)
38 typedef long long OFStreamOffset;
39 #elif defined(OF_MORPHOS)
40 typedef long long OFStreamOffset;
41 #elif defined(OF_HAVE_OFF64_T)
42 typedef off64_t OFStreamOffset;
43 #else
44 typedef off_t OFStreamOffset;
45 #endif
46 
50 typedef enum {
57 } OFSeekWhence;
58 
71 {
72  OF_RESERVE_IVARS(OFSeekableStream, 4)
73 }
74 
84 - (OFStreamOffset)seekToOffset: (OFStreamOffset)offset
85  whence: (OFSeekWhence)whence;
86 
101 - (OFStreamOffset)lowlevelSeekToOffset: (OFStreamOffset)offset
102  whence: (OFSeekWhence)whence;
103 @end
104 
105 OF_ASSUME_NONNULL_END
OFSeekWhence
From where to seek.
Definition: OFSeekableStream.h:50
A base class for different types of streams.
Definition: OFStream.h:186
Definition: OFSeekableStream.h:52
Definition: OFSeekableStream.h:54
Definition: OFSeekableStream.h:56
A stream that supports seeking.
Definition: OFSeekableStream.h:70