50e5c22f0f
2000-01-24 bertrand <bertrand@helixcode.com> * camel/camel-seekable-stream.c: * camel/camel-seekable-stream.h: * camel/camel-simple-data-wrapper-stream.h: parent class is now CamelSeekableStream * camel/camel-stream-buffered-fs.h: idem * camel/camel-stream-buffered-fs.c: idem * camel/camel-stream-mem.h: idem * camel/camel-stream-mem.c: idem (_seek): change declaration * camel/camel-stream-fs.c: parent class is now CamelSeekableStream (_seek): change declaration * camel/camel-stream-fs.h: parent class is now CamelSeekableStream Major compatible change in the stream hierarchy. Removed the seek method from the general streams so that we can use them as "DataSources". svn path=/trunk/; revision=1622
99 lines
3.0 KiB
C
99 lines
3.0 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
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/* camel-stream-fs.h :stream based on unix filesystem */
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/*
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*
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* Author :
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* Bertrand Guiheneuf <bertrand@helixcode.com>
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*
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* Copyright 1999, 2000 HelixCode (http://www.helixcode.com) .
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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#ifndef CAMEL_STREAM_FS_H
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#define CAMEL_STREAM_FS_H 1
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#ifdef __cplusplus
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extern "C" {
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#pragma }
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#endif /* __cplusplus }*/
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#include <gtk/gtk.h>
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#include <stdio.h>
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#include "camel-seekable-stream.h"
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#define CAMEL_STREAM_FS_TYPE (camel_stream_fs_get_type ())
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#define CAMEL_STREAM_FS(obj) (GTK_CHECK_CAST((obj), CAMEL_STREAM_FS_TYPE, CamelStreamFs))
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#define CAMEL_STREAM_FS_CLASS(k) (GTK_CHECK_CLASS_CAST ((k), CAMEL_STREAM_FS_TYPE, CamelStreamFsClass))
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#define CAMEL_IS_STREAM_FS(o) (GTK_CHECK_TYPE((o), CAMEL_STREAM_FS_TYPE))
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typedef enum
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{
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CAMEL_STREAM_FS_READ = 1,
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CAMEL_STREAM_FS_WRITE = 2
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} CamelStreamFsMode;
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typedef struct
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{
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CamelSeekableStream parent_object;
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gchar *name; /* name of the underlying file */
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gint fd; /* file descriptor on the underlying file */
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guint32 cur_pos; /* current postion in the stream */
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guint32 inf_bound; /* first valid position */
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gint32 sup_bound; /* last valid position, -1 means, no sup bound */
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} CamelStreamFs;
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typedef struct {
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CamelSeekableStreamClass parent_class;
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/* Virtual methods */
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void (*init_with_fd) (CamelStreamFs *stream_fs, int fd);
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void (*init_with_fd_and_bounds) (CamelStreamFs *stream_fs, int fd, guint32 inf_bound, gint32 sup_bound);
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void (*init_with_name) (CamelStreamFs *stream_fs, const gchar *name, CamelStreamFsMode mode);
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void (*init_with_name_and_bounds) (CamelStreamFs *stream_fs, const gchar *name,
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CamelStreamFsMode mode, guint32 inf_bound, gint32 sup_bound);
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} CamelStreamFsClass;
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/* Standard Gtk function */
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GtkType camel_stream_fs_get_type (void);
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/* public methods */
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CamelStream *camel_stream_fs_new_with_name (const gchar *name, CamelStreamFsMode mode);
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CamelStream *camel_stream_fs_new_with_name_and_bounds (const gchar *name, CamelStreamFsMode mode,
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guint32 inf_bound, gint32 sup_bound);
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CamelStream *camel_stream_fs_new_with_fd (int fd);
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CamelStream *camel_stream_fs_new_with_fd_and_bounds (int fd,
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guint32 inf_bound, gint32 sup_bound);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* CAMEL_STREAM_FS_H */
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