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/*
* Server-side file definitions
*
* Copyright (C) 2003 Alexandre Julliard
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifndef __WINE_SERVER_FILE_H
#define __WINE_SERVER_FILE_H
#include "object.h"
struct fd;
struct mapping;
struct async_queue;
struct completion;
/* operations valid on file descriptor objects */
struct fd_ops
{
/* get the events we want to poll() for on this object */
int (*get_poll_events)(struct fd *);
/* a poll() event occurred */
void (*poll_event)(struct fd *,int event);
/* flush the object buffers */
void (*flush)(struct fd *, struct event **);
/* get file information */
enum server_fd_type (*get_fd_type)(struct fd *fd);
/* perform an ioctl on the file */
obj_handle_t (*ioctl)(struct fd *fd, ioctl_code_t code, const async_data_t *async, int blocking,
const void *data, data_size_t size);
/* queue an async operation */
void (*queue_async)(struct fd *, const async_data_t *data, int type, int count);
/* selected events for async i/o need an update */
void (*reselect_async)( struct fd *, struct async_queue *queue );
/* cancel an async operation */
void (*cancel_async)(struct fd *, struct process *process, struct thread *thread, client_ptr_t iosb);
};
/* file descriptor functions */
extern struct fd *alloc_pseudo_fd( const struct fd_ops *fd_user_ops, struct object *user,
unsigned int options );
extern void set_no_fd_status( struct fd *fd, unsigned int status );
extern struct fd *open_fd( struct fd *root, const char *name, int flags, mode_t *mode,
unsigned int access, unsigned int sharing, unsigned int options );
extern struct fd *create_anonymous_fd( const struct fd_ops *fd_user_ops,
int unix_fd, struct object *user, unsigned int options );
extern struct fd *dup_fd_object( struct fd *orig, unsigned int access, unsigned int sharing,
unsigned int options );
extern struct fd *get_fd_object_for_mapping( struct fd *fd, unsigned int access, unsigned int sharing );
extern void *get_fd_user( struct fd *fd );
extern void set_fd_user( struct fd *fd, const struct fd_ops *ops, struct object *user );
extern unsigned int get_fd_options( struct fd *fd );
extern int get_unix_fd( struct fd *fd );
extern int is_same_file_fd( struct fd *fd1, struct fd *fd2 );
extern int is_fd_removable( struct fd *fd );
extern int fd_close_handle( struct object *obj, struct process *process, obj_handle_t handle );
extern int check_fd_events( struct fd *fd, int events );
extern void set_fd_events( struct fd *fd, int events );
extern obj_handle_t lock_fd( struct fd *fd, file_pos_t offset, file_pos_t count, int shared, int wait );
extern void unlock_fd( struct fd *fd, file_pos_t offset, file_pos_t count );
extern void allow_fd_caching( struct fd *fd );
extern void set_fd_signaled( struct fd *fd, int signaled );
extern int is_fd_signaled( struct fd *fd );
extern int default_fd_signaled( struct object *obj, struct thread *thread );
extern unsigned int default_fd_map_access( struct object *obj, unsigned int access );
extern int default_fd_get_poll_events( struct fd *fd );
extern void default_poll_event( struct fd *fd, int event );
extern struct async *fd_queue_async( struct fd *fd, const async_data_t *data, int type );
extern void fd_async_wake_up( struct fd *fd, int type, unsigned int status );
extern void fd_reselect_async( struct fd *fd, struct async_queue *queue );
extern obj_handle_t no_fd_ioctl( struct fd *fd, ioctl_code_t code, const async_data_t *async,
int blocking, const void *data, data_size_t size );
extern obj_handle_t default_fd_ioctl( struct fd *fd, ioctl_code_t code, const async_data_t *async,
int blocking, const void *data, data_size_t size );
extern void no_fd_queue_async( struct fd *fd, const async_data_t *data, int type, int count );
extern void default_fd_queue_async( struct fd *fd, const async_data_t *data, int type, int count );
extern void default_fd_reselect_async( struct fd *fd, struct async_queue *queue );
extern void default_fd_cancel_async( struct fd *fd, struct process *process, struct thread *thread, client_ptr_t iosb );
extern void no_flush( struct fd *fd, struct event **event );
extern void main_loop(void);
extern void remove_process_locks( struct process *process );
static inline struct fd *get_obj_fd( struct object *obj ) { return obj->ops->get_fd( obj ); }
/* timeout functions */
struct timeout_user;
extern timeout_t current_time;
#define TICKS_PER_SEC 10000000
typedef void (*timeout_callback)( void *private );
extern struct timeout_user *add_timeout_user( timeout_t when, timeout_callback func, void *private );
extern void remove_timeout_user( struct timeout_user *user );
extern const char *get_timeout_str( timeout_t timeout );
/* file functions */
extern struct file *get_file_obj( struct process *process, obj_handle_t handle,
unsigned int access );
extern int get_file_unix_fd( struct file *file );
extern int is_same_file( struct file *file1, struct file *file2 );
extern struct file *create_file_for_fd( int fd, unsigned int access, unsigned int sharing );
extern struct file *create_file_for_fd_obj( struct fd *fd, unsigned int access, unsigned int sharing );
extern void file_set_error(void);
extern struct security_descriptor *mode_to_sd( mode_t mode, const SID *user, const SID *group );
extern mode_t sd_to_mode( const struct security_descriptor *sd, const SID *owner );
/* file mapping functions */
extern struct mapping *get_mapping_obj( struct process *process, obj_handle_t handle,
unsigned int access );
extern obj_handle_t open_mapping_file( struct process *process, struct mapping *mapping,
unsigned int access, unsigned int sharing );
extern struct mapping *grab_mapping_unless_removable( struct mapping *mapping );
extern int get_page_size(void);
/* change notification functions */
extern void do_change_notify( int unix_fd );
extern void sigio_callback(void);
extern struct object *create_dir_obj( struct fd *fd, unsigned int access, mode_t mode );
extern struct dir *get_dir_obj( struct process *process, obj_handle_t handle, unsigned int access );
/* completion */
extern struct completion *get_completion_obj( struct process *process, obj_handle_t handle, unsigned int access );
extern void add_completion( struct completion *completion, apc_param_t ckey, apc_param_t cvalue,
unsigned int status, unsigned int information );
/* serial port functions */
extern int is_serial_fd( struct fd *fd );
extern struct object *create_serial( struct fd *fd );
/* async I/O functions */
extern struct async_queue *create_async_queue( struct fd *fd );
extern void free_async_queue( struct async_queue *queue );
extern struct async *create_async( struct thread *thread, struct async_queue *queue,
const async_data_t *data );
extern void async_set_timeout( struct async *async, timeout_t timeout, unsigned int status );
extern void async_set_result( struct object *obj, unsigned int status,
unsigned int total, client_ptr_t apc );
extern int async_queued( struct async_queue *queue );
extern int async_waiting( struct async_queue *queue );
extern void async_terminate( struct async *async, unsigned int status );
extern int async_wake_up_by( struct async_queue *queue, struct process *process,
struct thread *thread, client_ptr_t iosb, unsigned int status );
extern void async_wake_up( struct async_queue *queue, unsigned int status );
extern struct completion *fd_get_completion( struct fd *fd, apc_param_t *p_key );
extern void fd_copy_completion( struct fd *src, struct fd *dst );
/* access rights that require Unix read permission */
#define FILE_UNIX_READ_ACCESS (FILE_READ_DATA|FILE_READ_ATTRIBUTES|FILE_READ_EA)
/* access rights that require Unix write permission */
#define FILE_UNIX_WRITE_ACCESS (FILE_WRITE_DATA|FILE_WRITE_ATTRIBUTES|FILE_WRITE_EA)
/* magic file access rights for mappings */
#define FILE_MAPPING_IMAGE 0x80000000 /* set for SEC_IMAGE mappings */
#define FILE_MAPPING_WRITE 0x40000000 /* set for writable shared mappings */
#define FILE_MAPPING_ACCESS 0x20000000 /* set for all mappings */
#endif /* __WINE_SERVER_FILE_H */
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