tmpfs_ops.c File Reference

Implementation of VFS operations for the TMPFS file system server. More...

#include "tmpfs.h"
#include "../../vfs/vfs.h"
#include <macros.h>
#include <stdint.h>
#include <async.h>
#include <errno.h>
#include <atomic.h>
#include <stdlib.h>
#include <str.h>
#include <stdio.h>
#include <assert.h>
#include <sys/types.h>
#include <adt/hash_table.h>
#include <as.h>
#include <libfs.h>

Go to the source code of this file.

Defines
#define	max(a, b)   ((a) > (b) ? (a) : (b))
#define	min(a, b)   ((a) < (b) ? (a) : (b))
#define	NODES_BUCKETS   256
#define	NODES_KEY_DEV   0
#define	NODES_KEY_INDEX   1
#define	TMPFS_SOME_ROOT   0
	All root nodes have index 0.
Functions
static int	nodes_compare (unsigned long key[], hash_count_t keys, link_t *item)
static hash_index_t	nodes_hash (unsigned long key[])
static void	nodes_remove_callback (link_t *item)
void	tmpfs_close (ipc_callid_t, ipc_call_t *)
static int	tmpfs_create_node (fs_node_t **, devmap_handle_t, int)
static void	tmpfs_dentry_initialize (tmpfs_dentry_t *dentryp)
void	tmpfs_destroy (ipc_callid_t, ipc_call_t *)
static int	tmpfs_destroy_node (fs_node_t *)
static devmap_handle_t	tmpfs_device_get (fs_node_t *fn)
static int	tmpfs_has_children (bool *has_children, fs_node_t *fn)
static fs_index_t	tmpfs_index_get (fs_node_t *fn)
bool	tmpfs_init (void)
static void	tmpfs_instance_done (devmap_handle_t devmap_handle)
static bool	tmpfs_instance_init (devmap_handle_t devmap_handle)
static bool	tmpfs_is_directory (fs_node_t *fn)
static bool	tmpfs_is_file (fs_node_t *fn)
static int	tmpfs_link_node (fs_node_t *, fs_node_t *, const char *)
static unsigned	tmpfs_lnkcnt_get (fs_node_t *fn)
void	tmpfs_lookup (ipc_callid_t, ipc_call_t *)
static int	tmpfs_match (fs_node_t **, fs_node_t *, const char *)
void	tmpfs_mount (ipc_callid_t, ipc_call_t *)
void	tmpfs_mounted (ipc_callid_t, ipc_call_t *)
static int	tmpfs_node_get (fs_node_t **, devmap_handle_t, fs_index_t)
static void	tmpfs_node_initialize (tmpfs_node_t *nodep)
static int	tmpfs_node_open (fs_node_t *)
static int	tmpfs_node_put (fs_node_t *)
void	tmpfs_open_node (ipc_callid_t, ipc_call_t *)
static char	tmpfs_plb_get_char (unsigned pos)
void	tmpfs_read (ipc_callid_t, ipc_call_t *)
static int	tmpfs_root_get (fs_node_t **rfn, devmap_handle_t devmap_handle)
static aoff64_t	tmpfs_size_get (fs_node_t *fn)
void	tmpfs_stat (ipc_callid_t, ipc_call_t *)
void	tmpfs_sync (ipc_callid_t, ipc_call_t *)
void	tmpfs_truncate (ipc_callid_t, ipc_call_t *)
static int	tmpfs_unlink_node (fs_node_t *, fs_node_t *, const char *)
void	tmpfs_unmount (ipc_callid_t, ipc_call_t *)
void	tmpfs_unmounted (ipc_callid_t, ipc_call_t *)
void	tmpfs_write (ipc_callid_t, ipc_call_t *)
Variables
hash_table_t	nodes
	Hash table of all TMPFS nodes.
hash_table_operations_t	nodes_ops
	TMPFS nodes hash table operations.
libfs_ops_t	tmpfs_libfs_ops
	libfs operations
fs_index_t	tmpfs_next_index = 1
	Global counter for assigning node indices.

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Detailed Description

Implementation of VFS operations for the TMPFS file system server.

Definition in file tmpfs_ops.c.

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