WebSVN – HelenOS – Diff – /branches/dynload/uspace/srv/fs/tmpfs/tmpfs.h


/*
 * Copyright (c) 2008 Jakub Jermar
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
/** @addtogroup fs
 * @{
 */
 
#ifndef TMPFS_TMPFS_H_
#define TMPFS_TMPFS_H_
 
#include <ipc/ipc.h>
#include <libfs.h>
#include <atomic.h>
#include <sys/types.h>
#include <bool.h>
#include <libadt/hash_table.h>
 
#ifndef dprintf
#define dprintf(...)    printf(__VA_ARGS__)
#endif
 
typedef enum {
    TMPFS_NONE,
    TMPFS_FILE,
    TMPFS_DIRECTORY
} tmpfs_dentry_type_t;
 
typedef struct tmpfs_dentry {
    fs_index_t index;   /**< TMPFS node index. */
    dev_handle_t dev_handle;/**< Device handle. */
    link_t dh_link;     /**< Dentries hash table link. */
    struct tmpfs_dentry *sibling;
    struct tmpfs_dentry *child;
    hash_table_t names; /**< All names linking to this TMPFS node. */
    tmpfs_dentry_type_t type;
    unsigned lnkcnt;    /**< Link count. */
    size_t size;        /**< File size if type is TMPFS_FILE. */
    void *data;     /**< File content's if type is TMPFS_FILE. */
} tmpfs_dentry_t;
 
extern fs_reg_t tmpfs_reg;
 
extern libfs_ops_t tmpfs_libfs_ops;
 
extern bool tmpfs_init(void);
 
extern void tmpfs_mounted(ipc_callid_t, ipc_call_t *);
extern void tmpfs_mount(ipc_callid_t, ipc_call_t *);
extern void tmpfs_lookup(ipc_callid_t, ipc_call_t *);
extern void tmpfs_read(ipc_callid_t, ipc_call_t *);
extern void tmpfs_write(ipc_callid_t, ipc_call_t *);
extern void tmpfs_truncate(ipc_callid_t, ipc_call_t *);
extern void tmpfs_destroy(ipc_callid_t, ipc_call_t *);
 
extern bool tmpfs_restore(dev_handle_t);
 
#endif
 
/**
 * @}
 */
 

Rev 3403	Rev 4348
1	/*	1	/*
2	* Copyright (c) 2008 Jakub Jermar	2	* Copyright (c) 2008 Jakub Jermar
3	* All rights reserved.	3	* All rights reserved.
4	*	4	*
5	* Redistribution and use in source and binary forms, with or without	5	* Redistribution and use in source and binary forms, with or without
6	* modification, are permitted provided that the following conditions	6	* modification, are permitted provided that the following conditions
7	* are met:	7	* are met:
8	*	8	*
9	* - Redistributions of source code must retain the above copyright	9	* - Redistributions of source code must retain the above copyright
10	* notice, this list of conditions and the following disclaimer.	10	* notice, this list of conditions and the following disclaimer.
11	* - Redistributions in binary form must reproduce the above copyright	11	* - Redistributions in binary form must reproduce the above copyright
12	* notice, this list of conditions and the following disclaimer in the	12	* notice, this list of conditions and the following disclaimer in the
13	* documentation and/or other materials provided with the distribution.	13	* documentation and/or other materials provided with the distribution.
14	* - The name of the author may not be used to endorse or promote products	14	* - The name of the author may not be used to endorse or promote products
15	* derived from this software without specific prior written permission.	15	* derived from this software without specific prior written permission.
16	*	16	*
17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR	17	* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES	18	* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.	19	* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,	20	* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT	21	* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,	22	* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY	23	* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT	24	* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF	25	* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.	26	* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27	*/	27	*/
28		28
29	/** @addtogroup fs	29	/** @addtogroup fs
30	* @{	30	* @{
31	*/	31	*/
32		32
33	#ifndef TMPFS_TMPFS_H_	33	#ifndef TMPFS_TMPFS_H_
34	#define TMPFS_TMPFS_H_	34	#define TMPFS_TMPFS_H_
35		35
36	#include <ipc/ipc.h>	36	#include <ipc/ipc.h>
37	#include <libfs.h>	37	#include <libfs.h>
38	#include <atomic.h>	38	#include <atomic.h>
39	#include <sys/types.h>	39	#include <sys/types.h>
40	#include <bool.h>	40	#include <bool.h>
41	#include <libadt/hash_table.h>	41	#include <libadt/hash_table.h>
42		42
43	#ifndef dprintf	43	#ifndef dprintf
44	#define dprintf(...) printf(__VA_ARGS__)	44	#define dprintf(...) printf(__VA_ARGS__)
45	#endif	45	#endif
46		46
47	typedef enum {	47	typedef enum {
48	TMPFS_NONE,	48	TMPFS_NONE,
49	TMPFS_FILE,	49	TMPFS_FILE,
50	TMPFS_DIRECTORY	50	TMPFS_DIRECTORY
51	} tmpfs_dentry_type_t;	51	} tmpfs_dentry_type_t;
52		52
53	typedef struct tmpfs_dentry {	53	typedef struct tmpfs_dentry {
54	fs_index_t index; /*< TMPFS node index. /	54	fs_index_t index; /*< TMPFS node index. /
-		55	dev_handle_t dev_handle;/*< Device handle. /
55	link_t dh_link; /*< Dentries hash table link. /	56	link_t dh_link; /*< Dentries hash table link. /
56	struct tmpfs_dentry *sibling;	57	struct tmpfs_dentry *sibling;
57	struct tmpfs_dentry *child;	58	struct tmpfs_dentry *child;
58	hash_table_t names; /*< All names linking to this TMPFS node. /	59	hash_table_t names; /*< All names linking to this TMPFS node. /
59	tmpfs_dentry_type_t type;	60	tmpfs_dentry_type_t type;
60	unsigned lnkcnt; /*< Link count. /	61	unsigned lnkcnt; /*< Link count. /
61	size_t size; /*< File size if type is TMPFS_FILE. /	62	size_t size; /*< File size if type is TMPFS_FILE. /
62	void data; /< File content's if type is TMPFS_FILE. /	63	void data; /< File content's if type is TMPFS_FILE. /
63	} tmpfs_dentry_t;	64	} tmpfs_dentry_t;
64		65
65	extern fs_reg_t tmpfs_reg;	66	extern fs_reg_t tmpfs_reg;
66		67
67	extern libfs_ops_t tmpfs_libfs_ops;	68	extern libfs_ops_t tmpfs_libfs_ops;
68		69
-		70	extern bool tmpfs_init(void);
-		71
69	extern void tmpfs_mounted(ipc_callid_t, ipc_call_t *);	72	extern void tmpfs_mounted(ipc_callid_t, ipc_call_t *);
70	extern void tmpfs_mount(ipc_callid_t, ipc_call_t *);	73	extern void tmpfs_mount(ipc_callid_t, ipc_call_t *);
71	extern void tmpfs_lookup(ipc_callid_t, ipc_call_t *);	74	extern void tmpfs_lookup(ipc_callid_t, ipc_call_t *);
72	extern void tmpfs_read(ipc_callid_t, ipc_call_t *);	75	extern void tmpfs_read(ipc_callid_t, ipc_call_t *);
73	extern void tmpfs_write(ipc_callid_t, ipc_call_t *);	76	extern void tmpfs_write(ipc_callid_t, ipc_call_t *);
74	extern void tmpfs_truncate(ipc_callid_t, ipc_call_t *);	77	extern void tmpfs_truncate(ipc_callid_t, ipc_call_t *);
75	extern void tmpfs_destroy(ipc_callid_t, ipc_call_t *);	78	extern void tmpfs_destroy(ipc_callid_t, ipc_call_t *);
76		79
77	extern bool tmpfs_restore(dev_handle_t);	80	extern bool tmpfs_restore(dev_handle_t);
78		81
79	#endif	82	#endif
80		83
81	/**	84	/**
82	* @}	85	* @}
83	*/	86	*/
84		87

Subversion Repositories HelenOS

(root)/branches/dynload/uspace/srv/fs/tmpfs/tmpfs.h – Rev 3403 → 4348