Rev 4537 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 4419 | trochtova | 1 | /* |
| 2 | * Copyright (c) 2008 Jakub Jermar |
||
| 3 | * All rights reserved. |
||
| 4 | * |
||
| 5 | * Redistribution and use in source and binary forms, with or without |
||
| 6 | * modification, are permitted provided that the following conditions |
||
| 7 | * are met: |
||
| 8 | * |
||
| 9 | * - Redistributions of source code must retain the above copyright |
||
| 10 | * notice, this list of conditions and the following disclaimer. |
||
| 11 | * - Redistributions in binary form must reproduce the above copyright |
||
| 12 | * notice, this list of conditions and the following disclaimer in the |
||
| 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 |
||
| 15 | * derived from this software without specific prior written permission. |
||
| 16 | * |
||
| 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 |
||
| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
| 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 |
||
| 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 |
||
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
| 27 | */ |
||
| 28 | |||
| 29 | /** @addtogroup fs |
||
| 30 | * @{ |
||
| 31 | */ |
||
| 32 | |||
| 33 | #ifndef TMPFS_TMPFS_H_ |
||
| 34 | #define TMPFS_TMPFS_H_ |
||
| 35 | |||
| 36 | #include <ipc/ipc.h> |
||
| 37 | #include <libfs.h> |
||
| 38 | #include <atomic.h> |
||
| 39 | #include <sys/types.h> |
||
| 40 | #include <bool.h> |
||
| 4537 | trochtova | 41 | #include <adt/hash_table.h> |
| 4419 | trochtova | 42 | |
| 43 | #ifndef dprintf |
||
| 44 | #define dprintf(...) printf(__VA_ARGS__) |
||
| 45 | #endif |
||
| 46 | |||
| 4420 | trochtova | 47 | #define TMPFS_NODE(node) ((node) ? (tmpfs_node_t *)(node)->data : NULL) |
| 48 | #define FS_NODE(node) ((node) ? (node)->bp : NULL) |
||
| 49 | |||
| 4419 | trochtova | 50 | typedef enum { |
| 51 | TMPFS_NONE, |
||
| 52 | TMPFS_FILE, |
||
| 53 | TMPFS_DIRECTORY |
||
| 54 | } tmpfs_dentry_type_t; |
||
| 55 | |||
| 4420 | trochtova | 56 | /* forward declaration */ |
| 57 | struct tmpfs_node; |
||
| 58 | |||
| 4419 | trochtova | 59 | typedef struct tmpfs_dentry { |
| 4420 | trochtova | 60 | link_t link; /**< Linkage for the list of siblings. */ |
| 61 | struct tmpfs_node *node;/**< Back pointer to TMPFS node. */ |
||
| 62 | char *name; /**< Name of dentry. */ |
||
| 63 | } tmpfs_dentry_t; |
||
| 64 | |||
| 65 | typedef struct tmpfs_node { |
||
| 66 | fs_node_t *bp; /**< Back pointer to the FS node. */ |
||
| 4419 | trochtova | 67 | fs_index_t index; /**< TMPFS node index. */ |
| 4420 | trochtova | 68 | dev_handle_t dev_handle;/**< Device handle. */ |
| 69 | link_t nh_link; /**< Nodes hash table link. */ |
||
| 4419 | trochtova | 70 | tmpfs_dentry_type_t type; |
| 71 | unsigned lnkcnt; /**< Link count. */ |
||
| 72 | size_t size; /**< File size if type is TMPFS_FILE. */ |
||
| 73 | void *data; /**< File content's if type is TMPFS_FILE. */ |
||
| 4420 | trochtova | 74 | link_t cs_head; /**< Head of child's siblings list. */ |
| 75 | } tmpfs_node_t; |
||
| 4419 | trochtova | 76 | |
| 77 | extern fs_reg_t tmpfs_reg; |
||
| 78 | |||
| 79 | extern libfs_ops_t tmpfs_libfs_ops; |
||
| 80 | |||
| 4420 | trochtova | 81 | extern bool tmpfs_init(void); |
| 82 | |||
| 4419 | trochtova | 83 | extern void tmpfs_mounted(ipc_callid_t, ipc_call_t *); |
| 84 | extern void tmpfs_mount(ipc_callid_t, ipc_call_t *); |
||
| 85 | extern void tmpfs_lookup(ipc_callid_t, ipc_call_t *); |
||
| 86 | extern void tmpfs_read(ipc_callid_t, ipc_call_t *); |
||
| 87 | extern void tmpfs_write(ipc_callid_t, ipc_call_t *); |
||
| 88 | extern void tmpfs_truncate(ipc_callid_t, ipc_call_t *); |
||
| 4668 | trochtova | 89 | extern void tmpfs_stat(ipc_callid_t, ipc_call_t *); |
| 4537 | trochtova | 90 | extern void tmpfs_close(ipc_callid_t, ipc_call_t *); |
| 4419 | trochtova | 91 | extern void tmpfs_destroy(ipc_callid_t, ipc_call_t *); |
| 4537 | trochtova | 92 | extern void tmpfs_open_node(ipc_callid_t, ipc_call_t *); |
| 93 | extern void tmpfs_sync(ipc_callid_t, ipc_call_t *); |
||
| 4419 | trochtova | 94 | |
| 95 | extern bool tmpfs_restore(dev_handle_t); |
||
| 96 | |||
| 97 | #endif |
||
| 98 | |||
| 99 | /** |
||
| 100 | * @} |
||
| 101 | */ |