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* Copyright (c) 2009 Martin Decky
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* - Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* - Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* - The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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/** @addtogroup libcipc
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#ifndef LIBC_IPC_VFS_H_
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#define LIBC_IPC_VFS_H_
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#include <sys/types.h>
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#define FS_NAME_MAXLEN 20
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#define MAX_PATH_LEN (64 * 1024)
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#define PLB_SIZE (2 * MAX_PATH_LEN)
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typedef int16_t fs_handle_t;
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typedef uint32_t fs_index_t;
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* A structure like this is passed to VFS by each individual FS upon its
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* registration. It assosiates a human-readable identifier with each
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/** Unique identifier of the fs. */
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char name[FS_NAME_MAXLEN + 1];
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VFS_IN_OPEN = IPC_FIRST_USER_METHOD,
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VFS_OUT_OPEN_NODE = IPC_FIRST_USER_METHOD,
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* No lookup flags used.
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* Lookup will succeed only if the object is a regular file. If L_CREATE is
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* specified, an empty file will be created. This flag is mutually exclusive
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* Lookup wil succeed only if the object is a directory. If L_CREATE is
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* specified, an empty directory will be created. This flag is mutually
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* exclusive with L_FILE.
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#define L_DIRECTORY 2
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* When used with L_CREATE, L_EXCLUSIVE will cause the lookup to fail if the
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* object already exists. L_EXCLUSIVE is implied when L_DIRECTORY is used.
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#define L_EXCLUSIVE 4
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* L_CREATE is used for creating both regular files and directories.
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* L_LINK is used for linking to an already existing nodes.
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* L_UNLINK is used to remove leaves from the file system namespace. This flag
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* cannot be passed directly by the client, but will be set by VFS during
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* L_OPEN is used to indicate that the lookup operation is a part of VFS_OPEN
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* call from the client. This means that the server might allocate some
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* resources for the opened file. This flag cannot be passed directly by the