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#define VFS_FIRST   IPC_FIRST_USER_METHOD
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#define VFS_FIRST   IPC_FIRST_USER_METHOD
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#define IPC_METHOD_TO_VFS_OP(m) ((m) - VFS_FIRST)  
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#define IPC_METHOD_TO_VFS_OP(m) ((m) - VFS_FIRST)  
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typedef enum {
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typedef enum {
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    VFS_REGISTER = VFS_FIRST,
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    VFS_OPEN = VFS_FIRST,
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    VFS_MOUNT,
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    VFS_UNMOUNT,
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    VFS_LOOKUP,
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    VFS_OPEN,
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    VFS_CREATE,
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    VFS_CLOSE,
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    VFS_CLOSE,
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    VFS_READ,
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    VFS_READ,
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    VFS_WRITE,
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    VFS_WRITE,
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    VFS_SEEK,
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    VFS_TRUNCATE,
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    VFS_RENAME,
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    VFS_RENAME,
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    VFS_OPENDIR,
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    VFS_READDIR,
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    VFS_CLOSEDIR,
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    VFS_UNLINK,
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    VFS_UNLINK,
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    VFS_MOUNT,
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    VFS_UNMOUNT,
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    VFS_LAST,       /* keep this the last member of the enum */
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    VFS_LAST_CMN,   /* keep this the last member of this enum */
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} vfs_request_t;
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} vfs_request_cmn_t;
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typedef enum {
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    VFS_LOOKUP = VFS_LAST_CMN,
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    VFS_LAST_CLNT,  /* keep this the last member of this enum */
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} vfs_request_clnt_t;
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typedef enum {
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    VFS_REGISTER = VFS_LAST_CMN,
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    VFS_SEEK,
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    VFS_LAST_SRV,   /* keep this the last member of this enum */
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} vfs_request_srv_t;
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/**
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/**
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 * An instance of this structure is associated with a particular FS operation.
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 * An instance of this structure is associated with a particular FS operation.
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 * It tells VFS if the FS supports the operation or maybe if a default one
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 * It tells VFS if the FS supports the operation or maybe if a default one
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typedef struct {
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typedef struct {
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    /** Unique identifier of the fs. */
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    /** Unique identifier of the fs. */
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    char name[FS_NAME_MAXLEN + 1];
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    char name[FS_NAME_MAXLEN + 1];
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    /** Operations. */
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    /** Operations. */
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    vfs_op_t ops[VFS_LAST - VFS_FIRST];
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    vfs_op_t ops[VFS_LAST_CLNT - VFS_FIRST];
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} vfs_info_t;
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} vfs_info_t;
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/**
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/**
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 * A structure like this will be allocated for each registered file system.
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 * A structure like this will be allocated for each registered file system.
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 */
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 */