137 lines
5.7 KiB
C
137 lines
5.7 KiB
C
/*
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* Server-side file definitions
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*
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* Copyright (C) 2003 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef __WINE_SERVER_FILE_H
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#define __WINE_SERVER_FILE_H
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#include "object.h"
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struct fd;
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typedef unsigned __int64 file_pos_t;
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/* operations valid on file descriptor objects */
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struct fd_ops
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{
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/* get the events we want to poll() for on this object */
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int (*get_poll_events)(struct fd *);
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/* a poll() event occurred */
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void (*poll_event)(struct fd *,int event);
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/* flush the object buffers */
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int (*flush)(struct fd *, struct event **);
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/* get file information */
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int (*get_file_info)(struct fd *);
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/* queue an async operation */
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void (*queue_async)(struct fd *, void* apc, void* user, void* io_sb, int type, int count);
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/* cancel an async operation */
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void (*cancel_async)(struct fd *);
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};
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/* file descriptor functions */
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extern struct fd *alloc_pseudo_fd( const struct fd_ops *fd_user_ops, struct object *user );
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extern struct fd *open_fd( const char *name, int flags, mode_t *mode, unsigned int access,
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unsigned int sharing, unsigned int options );
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extern struct fd *create_anonymous_fd( const struct fd_ops *fd_user_ops,
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int unix_fd, struct object *user );
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extern void *get_fd_user( struct fd *fd );
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extern void set_fd_user( struct fd *fd, const struct fd_ops *ops, struct object *user );
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extern int get_unix_fd( struct fd *fd );
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extern int is_same_file_fd( struct fd *fd1, struct fd *fd2 );
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extern void fd_poll_event( struct fd *fd, int event );
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extern int check_fd_events( struct fd *fd, int events );
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extern void set_fd_events( struct fd *fd, int events );
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extern obj_handle_t lock_fd( struct fd *fd, file_pos_t offset, file_pos_t count, int shared, int wait );
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extern void unlock_fd( struct fd *fd, file_pos_t offset, file_pos_t count );
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extern int default_fd_add_queue( struct object *obj, struct wait_queue_entry *entry );
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extern void default_fd_remove_queue( struct object *obj, struct wait_queue_entry *entry );
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extern int default_fd_signaled( struct object *obj, struct thread *thread );
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extern int default_fd_get_poll_events( struct fd *fd );
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extern void default_poll_event( struct fd *fd, int event );
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extern void fd_queue_async_timeout( struct fd *fd, void *apc, void *user, void *io_sb, int type,
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int count, const struct timeval *timeout );
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extern void default_fd_queue_async( struct fd *fd, void *apc, void *user, void *io_sb, int type, int count );
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extern void default_fd_cancel_async( struct fd *fd );
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extern int no_flush( struct fd *fd, struct event **event );
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extern int no_get_file_info( struct fd *fd );
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extern void no_queue_async( struct fd *fd, void* apc, void* user, void* io_sb, int type, int count);
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extern void no_cancel_async( struct fd *fd );
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extern void main_loop(void);
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extern void remove_process_locks( struct process *process );
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inline static struct fd *get_obj_fd( struct object *obj ) { return obj->ops->get_fd( obj ); }
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/* timeout functions */
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struct timeout_user;
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typedef void (*timeout_callback)( void *private );
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extern struct timeout_user *add_timeout_user( const struct timeval *when,
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timeout_callback func, void *private );
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extern void remove_timeout_user( struct timeout_user *user );
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extern void add_timeout( struct timeval *when, int timeout );
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/* return 1 if t1 is before t2 */
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static inline int time_before( const struct timeval *t1, const struct timeval *t2 )
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{
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return ((t1->tv_sec < t2->tv_sec) ||
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((t1->tv_sec == t2->tv_sec) && (t1->tv_usec < t2->tv_usec)));
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}
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/* file functions */
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extern struct file *get_file_obj( struct process *process, obj_handle_t handle,
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unsigned int access );
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extern int get_file_unix_fd( struct file *file );
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extern int is_same_file( struct file *file1, struct file *file2 );
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extern int grow_file( struct file *file, file_pos_t size );
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extern struct file *create_temp_file( int access );
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extern void file_set_error(void);
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/* change notification functions */
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extern void do_change_notify( int unix_fd );
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extern void sigio_callback(void);
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extern struct object *create_dir_obj( struct fd *fd );
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/* serial port functions */
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extern int is_serial_fd( struct fd *fd );
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extern struct object *create_serial( struct fd *fd, unsigned int options );
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/* async I/O functions */
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extern struct async *create_async( struct thread *thread, const struct timeval *timeout,
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struct list *queue, void *, void *, void *);
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extern void async_terminate_head( struct list *queue, int status );
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static inline void async_terminate_queue( struct list *queue, int status )
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{
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while (!list_empty( queue )) async_terminate_head( queue, status );
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}
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/* access rights that require Unix read permission */
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#define FILE_UNIX_READ_ACCESS (FILE_READ_DATA|FILE_READ_ATTRIBUTES|FILE_READ_EA)
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/* access rights that require Unix write permission */
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#define FILE_UNIX_WRITE_ACCESS (FILE_WRITE_DATA|FILE_WRITE_ATTRIBUTES|FILE_WRITE_EA)
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#endif /* __WINE_SERVER_FILE_H */
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