/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* camel-stream-mem.c: memory buffer based stream */
/*
* Authors: Bertrand Guiheneuf <bertrand@helixcode.com>
* Michael Zucchi <notzed@ximian.com>
*
* Copyright 1999, 2000 Ximian, Inc. (www.ximian.com)
*
* 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
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <errno.h>
#include "camel-stream-mem.h"
static CamelSeekableStreamClass *parent_class = NULL;
/* Returns the class for a CamelStreamMem */
#define CSM_CLASS(so) CAMEL_STREAM_MEM_CLASS(CAMEL_OBJECT_GET_CLASS(so))
static ssize_t stream_read (CamelStream *stream, char *buffer, size_t n);
static ssize_t stream_write (CamelStream *stream, const char *buffer, size_t n);
static gboolean stream_eos (CamelStream *stream);
static off_t stream_seek (CamelSeekableStream *stream, off_t offset,
CamelStreamSeekPolicy policy);
static void camel_stream_mem_finalize (CamelObject *object);
static void
camel_stream_mem_class_init (CamelStreamMemClass *camel_stream_mem_class)
{
CamelSeekableStreamClass *camel_seekable_stream_class =
CAMEL_SEEKABLE_STREAM_CLASS (camel_stream_mem_class);
CamelStreamClass *camel_stream_class =
CAMEL_STREAM_CLASS (camel_stream_mem_class);
parent_class = CAMEL_SEEKABLE_STREAM_CLASS( camel_type_get_global_classfuncs( CAMEL_SEEKABLE_STREAM_TYPE ) );
/* virtual method overload */
camel_stream_class->read = stream_read;
camel_stream_class->write = stream_write;
camel_stream_class->eos = stream_eos;
camel_seekable_stream_class->seek = stream_seek;
}
static void
camel_stream_mem_init (CamelObject *object)
{
CamelStreamMem *stream_mem = CAMEL_STREAM_MEM (object);
stream_mem->owner = FALSE;
stream_mem->buffer = 0;
}
CamelType
camel_stream_mem_get_type (void)
{
static CamelType camel_stream_mem_type = CAMEL_INVALID_TYPE;
if (camel_stream_mem_type == CAMEL_INVALID_TYPE) {
camel_stream_mem_type = camel_type_register( CAMEL_SEEKABLE_STREAM_TYPE,
"CamelStreamMem",
sizeof( CamelStreamMem ),
sizeof( CamelStreamMemClass ),
(CamelObjectClassInitFunc) camel_stream_mem_class_init,
NULL,
(CamelObjectInitFunc) camel_stream_mem_init,
(CamelObjectFinalizeFunc) camel_stream_mem_finalize );
}
return camel_stream_mem_type;
}
CamelStream *
camel_stream_mem_new (void)
{
return camel_stream_mem_new_with_byte_array (g_byte_array_new ());
}
CamelStream *
camel_stream_mem_new_with_buffer (const char *buffer, size_t len)
{
GByteArray *ba;
ba = g_byte_array_new ();
g_byte_array_append (ba, (const guint8 *)buffer, len);
return camel_stream_mem_new_with_byte_array (ba);
}
CamelStream *
camel_stream_mem_new_with_byte_array (GByteArray *byte_array)
{
CamelStreamMem *stream_mem;
stream_mem = CAMEL_STREAM_MEM( camel_object_new (CAMEL_STREAM_MEM_TYPE) );
stream_mem->buffer = byte_array;
stream_mem->owner = TRUE;
return CAMEL_STREAM (stream_mem);
}
/* note: with these functions the caller is the 'owner' of the buffer */
void camel_stream_mem_set_byte_array (CamelStreamMem *s, GByteArray *buffer)
{
if (s->buffer && s->owner)
g_byte_array_free(s->buffer, TRUE);
s->owner = FALSE;
s->buffer = buffer;
}
void camel_stream_mem_set_buffer (CamelStreamMem *s, const char *buffer, size_t len)
{
GByteArray *ba;
ba = g_byte_array_new ();
g_byte_array_append(ba, (const guint8 *)buffer, len);
camel_stream_mem_set_byte_array(s, ba);
s->owner = TRUE;
}
static void
camel_stream_mem_finalize (CamelObject *object)
{
CamelStreamMem *stream_mem = CAMEL_STREAM_MEM (object);
if (stream_mem->buffer && stream_mem->owner)
g_byte_array_free (stream_mem->buffer, TRUE);
/* Will be called automagically in the Camel Type System!
* Wheeee!
* G_TK_OBJECT_CLASS (parent_class)->finalize (object);
*/
}
static ssize_t
stream_read (CamelStream *stream, char *buffer, size_t n)
{
CamelStreamMem *camel_stream_mem = CAMEL_STREAM_MEM (stream);
CamelSeekableStream *seekable = CAMEL_SEEKABLE_STREAM (stream);
ssize_t nread;
if (seekable->bound_end != CAMEL_STREAM_UNBOUND)
n = MIN(seekable->bound_end - seekable->position, n);
nread = MIN (n, camel_stream_mem->buffer->len - seekable->position);
if (nread > 0) {
memcpy (buffer, camel_stream_mem->buffer->data + seekable->position, nread);
seekable->position += nread;
} else
nread = 0;
return nread;
}
static ssize_t
stream_write (CamelStream *stream, const char *buffer, size_t n)
{
CamelStreamMem *stream_mem = CAMEL_STREAM_MEM (stream);
CamelSeekableStream *seekable = CAMEL_SEEKABLE_STREAM (stream);
ssize_t nwrite = n;
if (seekable->bound_end != CAMEL_STREAM_UNBOUND)
nwrite = MIN(seekable->bound_end - seekable->position, n);
#ifndef NO_WARNINGS
#warning "g_byte_arrays use g_malloc and so are totally unsuitable for this object"
#endif
if (seekable->position == stream_mem->buffer->len) {
g_byte_array_append(stream_mem->buffer, (const guint8 *)buffer, nwrite);
} else {
g_byte_array_set_size(stream_mem->buffer, nwrite + stream_mem->buffer->len);
memcpy(stream_mem->buffer->data + seekable->position, buffer, nwrite);
}
seekable->position += nwrite;
return nwrite;
}
static gboolean
stream_eos (CamelStream *stream)
{
CamelStreamMem *stream_mem = CAMEL_STREAM_MEM (stream);
CamelSeekableStream *seekable_stream = CAMEL_SEEKABLE_STREAM (stream);
return stream_mem->buffer->len <= seekable_stream->position;
}
static off_t
stream_seek (CamelSeekableStream *stream, off_t offset,
CamelStreamSeekPolicy policy)
{
off_t position;
CamelStreamMem *stream_mem = CAMEL_STREAM_MEM (stream);
switch (policy) {
case CAMEL_STREAM_SET:
position = offset;
break;
case CAMEL_STREAM_CUR:
position = stream->position + offset;
break;
case CAMEL_STREAM_END:
position = (stream_mem->buffer)->len + offset;
break;
default:
position = offset;
break;
}
if (stream->bound_end != CAMEL_STREAM_UNBOUND)
position = MIN (position, stream->bound_end);
if (stream->bound_start != CAMEL_STREAM_UNBOUND)
position = MAX (position, 0);
else
position = MAX (position, stream->bound_start);
if (position > stream_mem->buffer->len) {
int oldlen = stream_mem->buffer->len;
g_byte_array_set_size (stream_mem->buffer, position);
memset (stream_mem->buffer->data + oldlen, 0,
position - oldlen);
}
stream->position = position;
return position;
}
/a></div><div class='content'><table class='list nowrap'><tr class='nohover'><th></th><th class='left'>Commit message (<a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/log/www/trac-wysiwyg?h=gstreamer0.10-removal&id=133802a1977f876853f50ed6ec5f002b6a8b118f&showmsg=1'>Expand</a>)</th><th class='left'>Author</th><th class='left'>Age</th><th class='left'>Files</th><th class='left'>Lines</th></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/www/trac-wysiwyg?h=gstreamer0.10-removal&id=e598d34341b62529b9ef63db27d571f9bcb8c766'>Add NO_STAGE all over the place in preparation for the staging support (cat: ...</a></td><td>bapt</td><td><span title='2013-09-21 07:36:50 +0800'>2013-09-21</span></td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+1</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/www/trac-wysiwyg?h=gstreamer0.10-removal&id=8187af230731a4fe354a0a7afd20a454fb1f825e'>- do not directly depend on setuptools, use USE_DISTUTILS instead</a></td><td>rm</td><td><span title='2012-10-27 02:54:43 +0800'>2012-10-27</span></td><td>1</td><td><span class='deletions'>-14</span>/<span class='insertions'>+6</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/www/trac-wysiwyg?h=gstreamer0.10-removal&id=de196485a7d92c8b10f03a833444bd6f6915e88b'>- Updated to 0.4.11508</a></td><td>glarkin</td><td><span title='2012-05-03 01:19:11 +0800'>2012-05-03</span></td><td>3</td><td><span class='deletions'>-16</span>/<span class='insertions'>+39</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/www/trac-wysiwyg?h=gstreamer0.10-removal&id=4ab972b7468e739167f0f48c87471c6c6b7da9e5'>- Get Rid MD5 support</a></td><td>miwi</td><td><span title='2011-03-19 20:38:54 +0800'>2011-03-19</span></td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+0</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/www/trac-wysiwyg?h=gstreamer0.10-removal&id=6bd59e14364395f0da9914994a385a3f5c4b9017'>- Chase devel/apr -> devel/apr1 shuffling</a></td><td>pgollucci</td><td><span title='2010-05-18 12:08:05 +0800'>2010-05-18</span></td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+1</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/www/trac-wysiwyg?h=gstreamer0.10-removal&id=74f60b3e15fe94fb7d1a852da48a637db87877da'>4/5: Chase devel/apr shlib bump</a></td><td>pgollucci</td><td><span title='2010-05-06 05:52:39 +0800'>2010-05-06</span></td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+1</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/www/trac-wysiwyg?h=gstreamer0.10-removal&id=9a0c8e1310ce37d900e54c02092ff46d046ff0eb'>- Updated to 0.2.7848</a></td><td>glarkin</td><td><span title='2010-04-16 01:37:27 +0800'>2010-04-16</span></td><td>3</td><td><span class='deletions'>-5</span>/<span class='insertions'>+5</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/www/trac-wysiwyg?h=gstreamer0.10-removal&id=610e75c7937f4f4bc741377ab529c9ba19b3305b'>- Updated to 0.2.7350</a></td><td>glarkin</td><td><span title='2010-01-06 04:47:33 +0800'>2010-01-06</span></td><td>2</td><td><span class='deletions'>-4</span>/<span class='insertions'>+4</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/www/trac-wysiwyg?h=gstreamer0.10-removal&id=2e7574904f6fd41d752a11e38bf748b8a9776e8b'>- Get rip python 2.3+</a></td><td>miwi</td><td><span title='2009-12-14 00:28:06 +0800'>2009-12-14</span></td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+1</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/www/trac-wysiwyg?h=gstreamer0.10-removal&id=e4a324dde12b05e8afc0511401cb97ac0ae57582'>- Updated to 0.2.5931</a></td><td>glarkin</td><td><span title='2009-06-09 06:10:42 +0800'>2009-06-09</span></td><td>2</td><td><span class='deletions'>-5</span>/<span class='insertions'>+4</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/www/trac-wysiwyg?h=gstreamer0.10-removal&id=1b574bb409bcdd705d2c18db5c50d0712380dadc'>- Simplify port (use more of bsd.python.mk)</a></td><td>glarkin</td><td><span title='2008-10-09 21:40:02 +0800'>2008-10-09</span></td><td>1</td><td><span class='deletions'>-3</span>/<span class='insertions'>+4</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/www/trac-wysiwyg?h=gstreamer0.10-removal&id=b11b41fd5db578bd5d6b061a6fcf3b9d10090c48'>- Update to 0.2.4353</a></td><td>glarkin</td><td><span title='2008-10-08 05:58:14 +0800'>2008-10-08</span></td><td>2</td><td><span class='deletions'>-4</span>/<span class='insertions'>+4</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/www/trac-wysiwyg?h=gstreamer0.10-removal&id=7d96d25780f6f13fcb8ed2921e8a1b72a507432b'>- Upgraded to 0.2.4214</a></td><td>glarkin</td><td><span title='2008-09-04 04:05:24 +0800'>2008-09-04</span></td><td>2</td><td><span class='deletions'>-6</span>/<span class='insertions'>+6</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/www/trac-wysiwyg?h=gstreamer0.10-removal&id=12b82902814323aecda2573f7f6d66ef0c34bbbd'>- chase www/trac 0.11</a></td><td>clsung</td><td><span title='2008-07-28 10:06:09 +0800'>2008-07-28</span></td><td>1</td><td><span class='deletions'>-1</span>/<span class='insertions'>+2</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/www/trac-wysiwyg?h=gstreamer0.10-removal&id=e69137a5b71479e5719ad58031ac2fc16787f3ea'>Changed my MAINTAINER address to</a></td><td>glarkin</td><td><span title='2008-07-19 05:05:20 +0800'>2008-07-19</span></td><td>1</td><td><span class='deletions'>-2</span>/<span class='insertions'>+2</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/www/trac-wysiwyg?h=gstreamer0.10-removal&id=1ea5f30c1d5445ffbfefa7d06965b95400944c9f'>- Update to 0.2.3856</a></td><td>beech</td><td><span title='2008-06-29 01:56:08 +0800'>2008-06-29</span></td><td>2</td><td><span class='deletions'>-4</span>/<span class='insertions'>+4</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/www/trac-wysiwyg?h=gstreamer0.10-removal&id=2ad481eed7be3a732fd561621752f254f3d2ee15'>- Update to 0.2.3847</a></td><td>miwi</td><td><span title='2008-06-21 06:06:29 +0800'>2008-06-21</span></td><td>2</td><td><span class='deletions'>-5</span>/<span class='insertions'>+4</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/www/trac-wysiwyg?h=gstreamer0.10-removal&id=11edc5451416c23af13418fc8391548f68dd629b'>Bump portrevision due to upgrade of devel/gettext.</a></td><td>edwin</td><td><span title='2008-06-06 22:17:21 +0800'>2008-06-06</span></td><td>1</td><td><span class='deletions'>-0</span>/<span class='insertions'>+1</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/www/trac-wysiwyg?h=gstreamer0.10-removal&id=ea70d50848deb6df5fea29e9005aa44c37b0940a'>- Update to 0.2.3423</a></td><td>beech</td><td><span title='2008-03-30 02:08:38 +0800'>2008-03-30</span></td><td>2</td><td><span class='deletions'>-4</span>/<span class='insertions'>+4</span></td></tr>
<tr><td class='commitgraph'>* </td><td><a href='/~lantw44/cgit/cgit.cgi/freebsd-ports-gnome/commit/www/trac-wysiwyg?h=gstreamer0.10-removal&id=d36dff992c9b5f72644ec8cd476d55eb5d046e70'>- Update to 0.2.3255</a></td><td>beech</td><td><span title='2008-02-22 18:42:09 +0800'>2008-02-22</span></td><td>3</td><td><span class='deletions'>-6</span>/<span class='insertions'>+6</span></td></tr>