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| 4419 | trochtova | 1 | /* |
| 2 | * Copyright (c) 2008 Jakub Jermar |
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| 3 | * All rights reserved. |
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| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 29 | /** @addtogroup fs |
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| 30 | * @{ |
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| 31 | */ |
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| 32 | |||
| 33 | #ifndef TMPFS_TMPFS_H_ |
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| 34 | #define TMPFS_TMPFS_H_ |
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| 35 | |||
| 36 | #include <ipc/ipc.h> |
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| 37 | #include <libfs.h> |
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| 38 | #include <atomic.h> |
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| 39 | #include <sys/types.h> |
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| 40 | #include <bool.h> |
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| 4537 | trochtova | 41 | #include <adt/hash_table.h> |
| 4419 | trochtova | 42 | |
| 43 | #ifndef dprintf |
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| 44 | #define dprintf(...) printf(__VA_ARGS__) |
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| 45 | #endif |
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| 46 | |||
| 4420 | trochtova | 47 | #define TMPFS_NODE(node) ((node) ? (tmpfs_node_t *)(node)->data : NULL) |
| 48 | #define FS_NODE(node) ((node) ? (node)->bp : NULL) |
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| 49 | |||
| 4419 | trochtova | 50 | typedef enum { |
| 51 | TMPFS_NONE, |
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| 52 | TMPFS_FILE, |
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| 53 | TMPFS_DIRECTORY |
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| 54 | } tmpfs_dentry_type_t; |
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| 55 | |||
| 4420 | trochtova | 56 | /* forward declaration */ |
| 57 | struct tmpfs_node; |
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| 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. */ |
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| 62 | char *name; /**< Name of dentry. */ |
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| 63 | } tmpfs_dentry_t; |
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| 64 | |||
| 65 | typedef struct tmpfs_node { |
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| 66 | fs_node_t *bp; /**< Back pointer to the FS node. */ |
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| 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. */ |
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| 4419 | trochtova | 70 | tmpfs_dentry_type_t type; |
| 71 | unsigned lnkcnt; /**< Link count. */ |
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| 72 | size_t size; /**< File size if type is TMPFS_FILE. */ |
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| 73 | void *data; /**< File content's if type is TMPFS_FILE. */ |
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| 4420 | trochtova | 74 | link_t cs_head; /**< Head of child's siblings list. */ |
| 75 | } tmpfs_node_t; |
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| 4419 | trochtova | 76 | |
| 77 | extern fs_reg_t tmpfs_reg; |
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| 78 | |||
| 79 | extern libfs_ops_t tmpfs_libfs_ops; |
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| 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 *); |
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| 85 | extern void tmpfs_lookup(ipc_callid_t, ipc_call_t *); |
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| 86 | extern void tmpfs_read(ipc_callid_t, ipc_call_t *); |
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| 87 | extern void tmpfs_write(ipc_callid_t, ipc_call_t *); |
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| 88 | extern void tmpfs_truncate(ipc_callid_t, ipc_call_t *); |
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| 4537 | trochtova | 89 | extern void tmpfs_close(ipc_callid_t, ipc_call_t *); |
| 4419 | trochtova | 90 | extern void tmpfs_destroy(ipc_callid_t, ipc_call_t *); |
| 4537 | trochtova | 91 | extern void tmpfs_open_node(ipc_callid_t, ipc_call_t *); |
| 92 | extern void tmpfs_device(ipc_callid_t, ipc_call_t *); |
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| 93 | extern void tmpfs_sync(ipc_callid_t, ipc_call_t *); |
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| 4419 | trochtova | 94 | |
| 95 | extern bool tmpfs_restore(dev_handle_t); |
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| 96 | |||
| 97 | #endif |
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| 98 | |||
| 99 | /** |
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| 100 | * @} |
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| 101 | */ |