2 * Amanda, The Advanced Maryland Automatic Network Disk Archiver
3 * Copyright (c) 2008,2009 Zmanda, Inc. All Rights Reserved.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 as published
7 * by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
11 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 * Contact information: Zmanda Inc., 465 N Mathlida Ave, Suite 300
19 * Sunnyvale, CA 94085, USA, or: http://www.zmanda.com
28 * This declaration is entirely private; nothing but xfer_dest_buffer() references
32 GType xfer_dest_buffer_get_type(void);
33 #define XFER_DEST_BUFFER_TYPE (xfer_dest_buffer_get_type())
34 #define XFER_DEST_BUFFER(obj) G_TYPE_CHECK_INSTANCE_CAST((obj), xfer_dest_buffer_get_type(), XferDestBuffer)
35 #define XFER_DEST_BUFFER_CONST(obj) G_TYPE_CHECK_INSTANCE_CAST((obj), xfer_dest_buffer_get_type(), XferDestBuffer const)
36 #define XFER_DEST_BUFFER_CLASS(klass) G_TYPE_CHECK_CLASS_CAST((klass), xfer_dest_buffer_get_type(), XferDestBufferClass)
37 #define IS_XFER_DEST_BUFFER(obj) G_TYPE_CHECK_INSTANCE_TYPE((obj), xfer_dest_buffer_get_type ())
38 #define XFER_DEST_BUFFER_GET_CLASS(obj) G_TYPE_INSTANCE_GET_CLASS((obj), xfer_dest_buffer_get_type(), XferDestBufferClass)
40 static GObjectClass *parent_class = NULL;
43 * Main object structure
46 typedef struct XferDestBuffer {
47 XferElement __parent__;
61 XferElementClass __parent__;
63 void (*get)(XferDestBuffer *self, gpointer *buf, gsize *size);
64 } XferDestBufferClass;
89 XferDestBuffer *self = (XferDestBuffer *)elt;
94 /* make sure this isn't too much data */
95 if (self->max_size && self->len + len > self->max_size) {
96 xfer_cancel_with_error(elt,
97 _("illegal attempt to transfer more than %zd bytes"), self->max_size);
98 wait_until_xfer_cancelled(elt->xfer);
103 /* expand the buffer if necessary */
104 if (self->len + len > self->allocated) {
105 gsize new_size = self->allocated * 2;
106 if (new_size < self->len+len)
107 new_size = self->len+len;
108 if (self->max_size && new_size > self->max_size)
109 new_size = self->max_size;
111 self->buf = g_realloc(self->buf, new_size);
112 self->allocated = new_size;
115 g_memmove(((guint8 *)self->buf)+self->len, buf, len);
125 XferDestBuffer *self = XFER_DEST_BUFFER(obj_self);
132 G_OBJECT_CLASS(parent_class)->finalize(obj_self);
137 XferDestBufferClass * selfc)
139 XferElementClass *klass = XFER_ELEMENT_CLASS(selfc);
140 GObjectClass *goc = G_OBJECT_CLASS(selfc);
141 static xfer_element_mech_pair_t mech_pairs[] = {
142 { XFER_MECH_PUSH_BUFFER, XFER_MECH_NONE, 0, 0},
143 { XFER_MECH_NONE, XFER_MECH_NONE, 0, 0},
146 selfc->get = get_impl;
147 klass->push_buffer = push_buffer_impl;
148 goc->finalize = finalize_impl;
150 klass->perl_class = "Amanda::Xfer::Dest::Buffer";
151 klass->mech_pairs = mech_pairs;
153 parent_class = g_type_class_peek_parent(selfc);
157 xfer_dest_buffer_get_type (void)
159 static GType type = 0;
161 if G_UNLIKELY(type == 0) {
162 static const GTypeInfo info = {
163 sizeof (XferDestBufferClass),
164 (GBaseInitFunc) NULL,
165 (GBaseFinalizeFunc) NULL,
166 (GClassInitFunc) class_init,
167 (GClassFinalizeFunc) NULL,
168 NULL /* class_data */,
169 sizeof (XferDestBuffer),
171 (GInstanceInitFunc) NULL,
175 type = g_type_register_static (XFER_ELEMENT_TYPE, "XferDestBuffer", &info, 0);
182 xfer_dest_buffer_get(
187 XferDestBufferClass *klass;
188 g_assert(IS_XFER_DEST_BUFFER(elt));
190 klass = XFER_DEST_BUFFER_GET_CLASS(elt);
191 klass->get(XFER_DEST_BUFFER(elt), buf, size);
194 /* create an element of this class; prototype is in xfer-element.h */
199 XferDestBuffer *self = (XferDestBuffer *)g_object_new(XFER_DEST_BUFFER_TYPE, NULL);
200 XferElement *elt = XFER_ELEMENT(self);
202 self->max_size = max_size;