X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=KernelLand%2FKernel%2Finclude%2Fvfs.h;h=82e6b56f3691e28c7196a5e853b2f5788b127e1b;hb=1c388a6c77f8f04b269051d0e089eaab9e45b391;hp=98bc02757cc9b551456e74a25092ad5af722435c;hpb=06a3eb8135ecb748c998e6827d20338158526d12;p=tpg%2Facess2.git diff --git a/KernelLand/Kernel/include/vfs.h b/KernelLand/Kernel/include/vfs.h index 98bc0275..82e6b56f 100644 --- a/KernelLand/Kernel/include/vfs.h +++ b/KernelLand/Kernel/include/vfs.h @@ -194,6 +194,28 @@ typedef struct sVFS_Node */ } tVFS_Node; +/** + * \name tVFS_NodeType.FindDir Flags + * \brief + * \{ + */ +//\! Attempt non-blocking IO +#define VFS_IOFLAG_NOBLOCK 0x001 +/** + * \} + */ + +/** + * \name tVFS_NodeType.FindDir Flags + * \brief + * \{ + */ +//\! Call was triggered by VFS_Stat (as opposed to open) +#define VFS_FDIRFLAG_STAT 0x001 +/** + * \} + */ + /** * \brief Functions for a specific node type */ @@ -251,7 +273,7 @@ struct sVFS_NodeType * \param Buffer Destination for read data * \return Number of bytes read */ - size_t (*Read)(struct sVFS_Node *Node, off_t Offset, size_t Length, void *Buffer); + size_t (*Read)(struct sVFS_Node *Node, off_t Offset, size_t Length, void *Buffer, Uint Flags); /** * \brief Write to the file * \param Node Pointer to this node @@ -260,7 +282,7 @@ struct sVFS_NodeType * \param Buffer Source of written data * \return Number of bytes read */ - size_t (*Write)(struct sVFS_Node *Node, off_t Offset, size_t Length, const void *Buffer); + size_t (*Write)(struct sVFS_Node *Node, off_t Offset, size_t Length, const void *Buffer, Uint Flags); /** * \brief Map a region of a file into memory @@ -286,31 +308,28 @@ struct sVFS_NodeType * \param Node Pointer to this node * \param Name Name of the file wanted * \return Pointer to the requested node or NULL if it cannot be found - * \note The node returned must be accessable until ::tVFS_Node.Close + * \note The node returned must be accessable until tVFS_NodeType::Close * is called and ReferenceCount reaches zero. */ - struct sVFS_Node *(*FindDir)(struct sVFS_Node *Node, const char *Name); + struct sVFS_Node *(*FindDir)(struct sVFS_Node *Node, const char *Name, Uint Flags); /** * \brief Read from a directory * \param Node Pointer to this node * \param Pos Offset in the directory - * \return Pointer to the name of the item on the heap (will be freed - * by the caller). If the directory end has been reached, NULL - * will be returned. - * If an item is required to be skipped either &::NULLNode, - * ::VFS_SKIP or ::VFS_SKIPN(0...1023) will be returned. + * \param Dest Destination for filename + * \return Zero on success, negative on error or +ve for ignore entry */ - char *(*ReadDir)(struct sVFS_Node *Node, int Pos); + int (*ReadDir)(struct sVFS_Node *Node, int Pos, char Dest[FILENAME_MAX]); /** * \brief Create a node in a directory * \param Node Pointer to this node * \param Name Name of the new child * \param Flags Flags to apply to the new child (directory or symlink) - * \return Zero on Success, non-zero on error (see errno.h) + * \return Created node or NULL on error */ - int (*MkNod)(struct sVFS_Node *Node, const char *Name, Uint Flags); + tVFS_Node *(*MkNod)(struct sVFS_Node *Node, const char *Name, Uint Mode); /** * \brief Relink (Rename/Remove) a file/directory @@ -325,7 +344,7 @@ struct sVFS_NodeType * \param Node Pointer to this node (directory) * \param NewName Name for the new link * \param Child Node to create a new link to - * \retur Zeron on success, non-zero on error (see errno.h) + * \return Zero on success, non-zero on error (see errno.h) */ int (*Link)(struct sVFS_Node *Node, const char *NewName, struct sVFS_Node *Child);