diff options
Diffstat (limited to 'camel/camel-stream-buffered-fs.c')
-rw-r--r-- | camel/camel-stream-buffered-fs.c | 265 |
1 files changed, 0 insertions, 265 deletions
diff --git a/camel/camel-stream-buffered-fs.c b/camel/camel-stream-buffered-fs.c deleted file mode 100644 index dc40990e00..0000000000 --- a/camel/camel-stream-buffered-fs.c +++ /dev/null @@ -1,265 +0,0 @@ -/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ -/* camel-stream-buffered-fs.c : file system based stream with buffer*/ - -/* - * - * Author : - * Bertrand Guiheneuf <bertrand@helixcode.com> - * - * Copyright 1999, 2000 Helix Code, Inc. (http://www.helixcode.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 - */ - - -#include <config.h> -#include "camel-stream-buffered-fs.h" -#include <sys/types.h> -#include <sys/stat.h> -#include <fcntl.h> -#include <errno.h> -#include "camel-log.h" - -static CamelStreamFsClass *parent_class=NULL; - - -/* Returns the class for a CamelStreamBufferedFs */ -#define CSBFS_CLASS(so) CAMEL_STREAM_BUFFERED_FS_CLASS (GTK_OBJECT(so)->klass) -#define CSFS_CLASS(so) CAMEL_STREAM_FS_CLASS (GTK_OBJECT(so)->klass) -#define CS_CLASS(so) CAMEL_STREAM_CLASS (GTK_OBJECT(so)->klass) - -static gint _read (CamelStream *stream, gchar *buffer, gint n); -static gint _write (CamelStream *stream, const gchar *buffer, gint n); -static void _flush (CamelStream *stream); -static gint _available (CamelStream *stream); -static gboolean _eos (CamelStream *stream); -static void _close (CamelStream *stream); -static gint _seek (CamelSeekableStream *stream, gint offset, CamelStreamSeekPolicy policy); - -static void _finalize (GtkObject *object); -static void _destroy (GtkObject *object); - -static void -camel_stream_buffered_fs_class_init (CamelStreamBufferedFsClass *camel_stream_buffered_fs_class) -{ - CamelStreamClass *camel_stream_class = CAMEL_STREAM_CLASS (camel_stream_buffered_fs_class); - GtkObjectClass *gtk_object_class = GTK_OBJECT_CLASS (camel_stream_buffered_fs_class); - - parent_class = gtk_type_class (camel_stream_fs_get_type ()); - - /* virtual method definition */ - - /* virtual method overload */ - camel_stream_class->read = _read; - - gtk_object_class->finalize = _finalize; - gtk_object_class->destroy = _destroy; - -} - -static void -camel_stream_buffered_fs_init (gpointer object, gpointer klass) -{ - CamelStreamBufferedFs *stream = CAMEL_STREAM_BUFFERED_FS (object); - - stream->buffer_size = 200; - stream->read_buffer = g_new (gchar, stream->buffer_size); - stream->write_buffer = g_new (gchar, stream->buffer_size); - stream->read_pos = 0; - stream->read_pos_max = 0; - stream->write_pos = 0; - stream->write_pos_max = stream->buffer_size; -} - -GtkType -camel_stream_buffered_fs_get_type (void) -{ - static GtkType camel_stream_buffered_fs_type = 0; - - gdk_threads_enter (); - if (!camel_stream_buffered_fs_type) { - GtkTypeInfo camel_stream_buffered_fs_info = - { - "CamelStreamBufferedFs", - sizeof (CamelStreamBufferedFs), - sizeof (CamelStreamBufferedFsClass), - (GtkClassInitFunc) camel_stream_buffered_fs_class_init, - (GtkObjectInitFunc) camel_stream_buffered_fs_init, - /* reserved_1 */ NULL, - /* reserved_2 */ NULL, - (GtkClassInitFunc) NULL, - }; - - camel_stream_buffered_fs_type = gtk_type_unique (camel_stream_fs_get_type (), &camel_stream_buffered_fs_info); - } - gdk_threads_leave (); - return camel_stream_buffered_fs_type; -} - - -static void -_destroy (GtkObject *object) -{ - CamelStreamBufferedFs *stream_buffered_fs = CAMEL_STREAM_BUFFERED_FS (object); - - CAMEL_LOG_FULL_DEBUG ("Entering CamelStreamBufferedFs::destroy\n"); - - - GTK_OBJECT_CLASS (parent_class)->destroy (object); - - CAMEL_LOG_FULL_DEBUG ("Leaving CamelStreamBufferedFs::destroy\n"); -} - - -static void -_finalize (GtkObject *object) -{ - CamelStreamBufferedFs *stream_buffered_fs = CAMEL_STREAM_BUFFERED_FS (object); - - - CAMEL_LOG_FULL_DEBUG ("Entering CamelStreamBufferedFs::finalize\n"); - - g_free (stream_buffered_fs->read_buffer); - g_free (stream_buffered_fs->write_buffer); - - GTK_OBJECT_CLASS (parent_class)->finalize (object); - CAMEL_LOG_FULL_DEBUG ("Leaving CamelStreamBufferedFs::finalize\n"); -} - - - -CamelStream * -camel_stream_buffered_fs_new_with_name (const gchar *name, CamelStreamFsMode mode) -{ - CamelStreamFs *stream_buffered_fs; - stream_buffered_fs = gtk_type_new (camel_stream_buffered_fs_get_type ()); - CSFS_CLASS (stream_buffered_fs)->init_with_name (stream_buffered_fs, name, mode); - - return CAMEL_STREAM (stream_buffered_fs); - -} - -CamelStream * -camel_stream_buffered_fs_new_with_fd (int fd) -{ - CamelStreamFs *stream_buffered_fs; - - CAMEL_LOG_FULL_DEBUG ( "Entering CamelStream::new_with_fd fd=%d\n",fd); - stream_buffered_fs = gtk_type_new (camel_stream_buffered_fs_get_type ()); - CSFS_CLASS (stream_buffered_fs)->init_with_fd (stream_buffered_fs, fd); - - - return CAMEL_STREAM (stream_buffered_fs); -} - -/** - * _read: read bytes from a stream - * @stream: stream - * @buffer: buffer where bytes are stored - * @n: max number of bytes to read - * - * - * - * Return value: number of bytes actually read. - **/ -static gint -_read (CamelStream *stream, gchar *buffer, gint n) -{ - CamelStreamBufferedFs *sbf = CAMEL_STREAM_BUFFERED_FS (stream); - gint v; - gint nb_bytes_buffered; - gint nb_bytes_to_read = n; - gint nb_bytes_read = 0; - gint bytes_chunk; - gboolean eof = FALSE; - - g_return_val_if_fail (n>0, n); - - nb_bytes_buffered = sbf->read_pos_max - sbf->read_pos; - while ( (!eof) && (nb_bytes_to_read>0)) { - if (nb_bytes_buffered <= 0) { - /* have to read some data on disk */ - v = CAMEL_STREAM_CLASS (parent_class)->read (stream, sbf->read_buffer, sbf->buffer_size); - nb_bytes_buffered = v; - sbf->read_pos_max = v; - sbf->read_pos = 0; - } - - /* nb of bytes to put inside buffer */ - bytes_chunk = MIN (nb_bytes_buffered, nb_bytes_to_read); - - if (bytes_chunk > 0) { - /* copy some bytes from the cache */ - memcpy (buffer, sbf->read_buffer + sbf->read_pos, bytes_chunk); - nb_bytes_buffered -= bytes_chunk; - nb_bytes_to_read -= bytes_chunk; - nb_bytes_read += bytes_chunk; - sbf->read_pos += bytes_chunk; - - } else /* nb_bytes_to_read is >0 so if bytes_chunk is <0 - * there was no data available */ - eof = TRUE; - } - - - - return nb_bytes_read; -} - - -static gint -_write (CamelStream *stream, const gchar *buffer, gint n) -{ - return 0; -} - - - -static void -_flush (CamelStream *stream) -{ - -} - - - -static gint -_available (CamelStream *stream) -{ - return 0; -} - - -static gboolean -_eos (CamelStream *stream) -{ - return FALSE; -} - - - -static void -_close (CamelStream *stream) -{ - -} - - -static gint -_seek (CamelSeekableStream *stream, gint offset, CamelStreamSeekPolicy policy) -{ - return 0; -} |