207 lines
7.2 KiB
C
207 lines
7.2 KiB
C
/*
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* Wine server objects
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*
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* Copyright (C) 1998 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __WINE_SERVER_OBJECT_H
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#define __WINE_SERVER_OBJECT_H
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#include <sys/poll.h>
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#include <sys/time.h>
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#include "wine/server_protocol.h"
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#define DEBUG_OBJECTS
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/* kernel objects */
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struct object;
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struct object_name;
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struct thread;
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struct process;
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struct file;
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struct wait_queue_entry;
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struct async;
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struct async_queue;
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/* operations valid on all objects */
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struct object_ops
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{
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/* size of this object type */
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size_t size;
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/* dump the object (for debugging) */
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void (*dump)(struct object *,int);
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/* add a thread to the object wait queue */
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int (*add_queue)(struct object *,struct wait_queue_entry *);
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/* remove a thread from the object wait queue */
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void (*remove_queue)(struct object *,struct wait_queue_entry *);
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/* is object signaled? */
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int (*signaled)(struct object *,struct thread *);
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/* wait satisfied; return 1 if abandoned */
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int (*satisfied)(struct object *,struct thread *);
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/* get the events we want to poll() for on this object */
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int (*get_poll_events)(struct object *);
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/* a poll() event occured */
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void (*poll_event)(struct object *,int event);
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/* return a Unix fd that can be used to read/write from the object */
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int (*get_fd)(struct object *);
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/* flush the object buffers */
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int (*flush)(struct object *);
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/* get file information */
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int (*get_file_info)(struct object *,struct get_file_info_reply *, int *flags);
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/* queue an async operation */
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struct async_queue* (*queue_async)(struct object *, struct async *async, int type, int count);
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/* destroy on refcount == 0 */
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void (*destroy)(struct object *);
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};
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struct object
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{
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unsigned int refcount; /* reference count */
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int fd; /* file descriptor */
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int select; /* select() user id */
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const struct object_ops *ops;
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struct wait_queue_entry *head;
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struct wait_queue_entry *tail;
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struct object_name *name;
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#ifdef DEBUG_OBJECTS
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struct object *prev;
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struct object *next;
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#endif
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};
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struct wait_queue_entry
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{
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struct wait_queue_entry *next;
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struct wait_queue_entry *prev;
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struct object *obj;
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struct thread *thread;
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};
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extern void *mem_alloc( size_t size ); /* malloc wrapper */
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extern void *memdup( const void *data, size_t len );
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extern void *alloc_object( const struct object_ops *ops, int fd );
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extern void dump_object_name( struct object *obj );
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extern void *create_named_object( const struct object_ops *ops, const WCHAR *name, size_t len );
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/* grab/release_object can take any pointer, but you better make sure */
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/* that the thing pointed to starts with a struct object... */
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extern struct object *grab_object( void *obj );
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extern void release_object( void *obj );
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extern struct object *find_object( const WCHAR *name, size_t len );
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extern int no_add_queue( struct object *obj, struct wait_queue_entry *entry );
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extern int no_satisfied( struct object *obj, struct thread *thread );
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extern int no_get_fd( struct object *obj );
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extern int no_flush( struct object *obj );
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extern int no_get_file_info( struct object *obj, struct get_file_info_reply *info, int *flags );
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extern void no_destroy( struct object *obj );
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extern int default_poll_add_queue( struct object *obj, struct wait_queue_entry *entry );
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extern void default_poll_remove_queue( struct object *obj, struct wait_queue_entry *entry );
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extern int default_poll_signaled( struct object *obj, struct thread *thread );
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extern void default_poll_event( struct object *obj, int event );
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#ifdef DEBUG_OBJECTS
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extern void dump_objects(void);
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#endif
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/* select functions */
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extern int add_select_user( struct object *obj );
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extern void remove_select_user( struct object *obj );
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extern void change_select_fd( struct object *obj, int fd, int events );
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extern void set_select_events( struct object *obj, int events );
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extern int check_select_events( int fd, int events );
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extern void select_loop(void);
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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( 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( struct timeval *t1, 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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/* event functions */
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struct event;
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extern struct event *create_event( const WCHAR *name, size_t len,
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int manual_reset, int initial_state );
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extern struct event *get_event_obj( struct process *process, handle_t handle, unsigned int access );
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extern void pulse_event( struct event *event );
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extern void set_event( struct event *event );
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extern void reset_event( struct event *event );
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/* mutex functions */
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extern void abandon_mutexes( struct thread *thread );
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/* file functions */
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extern struct file *get_file_obj( struct process *process, handle_t handle,
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unsigned int access );
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extern int is_same_file( struct file *file1, struct file *file2 );
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extern int get_file_drive_type( struct file *file );
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extern int grow_file( struct file *file, int size_high, int size_low );
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extern int create_anonymous_file(void);
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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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/* serial functions */
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int get_serial_async_timeout(struct object *obj, int type, int count);
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/* debugger functions */
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extern int set_process_debugger( struct process *process, struct thread *debugger );
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extern void generate_debug_event( struct thread *thread, int code, void *arg );
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extern void generate_startup_debug_events( struct process *process, void *entry );
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extern void debug_exit_thread( struct thread *thread );
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/* mapping functions */
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extern int get_page_size(void);
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/* registry functions */
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extern void init_registry(void);
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extern void close_registry(void);
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/* atom functions */
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extern void close_atom_table(void);
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extern int grab_global_atom( atom_t atom );
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extern void release_global_atom( atom_t atom );
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/* global variables */
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/* command-line options */
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extern int debug_level;
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extern int persistent_server;
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/* server start time used for GetTickCount() */
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extern unsigned int server_start_ticks;
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#endif /* __WINE_SERVER_OBJECT_H */
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