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
|
/* -*- Mode: C; indent-tabs-mode: t; c-basic-offset: 8; tab-width: 8 -*- */
/*
* GData Client
* Copyright (C) Philip Withnall 2009 <philip@tecnocode.co.uk>
*
* GData Client 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.
*
* GData Client 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 GData Client. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GDATA_BUFFER_H
#define GDATA_BUFFER_H
#include <glib.h>
#include <glib-object.h>
#include <gio/gio.h>
G_BEGIN_DECLS
typedef struct _GDataBufferChunk GDataBufferChunk;
/**
* GDataBuffer:
*
* All the fields in the #GDataBuffer structure are private and should never be accessed directly.
*
* Since: 0.5.0
**/
typedef struct {
/*< private >*/
GDataBufferChunk *head;
gsize head_read_offset; /* number of bytes which have already been popped from the head chunk */
gsize total_length; /* total length of all the chunks available to read (i.e. head_read_offset is already subtracted) */
gboolean reached_eof; /* set to TRUE only once we've reached EOF */
GDataBufferChunk **tail; /* pointer to the GDataBufferChunk->next field of the current tail chunk */
#if GLIB_CHECK_VERSION (2, 31, 0)
GMutex mutex; /* mutex protecting the entire structure on push and pop */
GCond cond; /* a GCond to allow a popping thread to block on data being pushed into the buffer */
#else
GStaticMutex mutex; /* mutex protecting the entire structure on push and pop */
GCond *cond; /* a GCond to allow a popping thread to block on data being pushed into the buffer */
#endif
} GDataBuffer;
GDataBuffer *gdata_buffer_new (void) G_GNUC_WARN_UNUSED_RESULT G_GNUC_MALLOC;
void gdata_buffer_free (GDataBuffer *self);
gboolean gdata_buffer_push_data (GDataBuffer *self, const guint8 *data, gsize length);
gsize gdata_buffer_pop_data (GDataBuffer *self, guint8 *data, gsize length_requested, gboolean *reached_eof, GCancellable *cancellable);
gsize gdata_buffer_pop_data_limited (GDataBuffer *self, guint8 *data, gsize maximum_length, gboolean *reached_eof);
G_END_DECLS
#endif /* !GDATA_BUFFER_H */
|
