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wine/server/object.h
Alexandre Julliard b00fb174f6 server: New scheme for cleaning up objects on server exit. 
Objects stored in static variables can now be marked when they are
created and are automatically cleaned up on exit. This avoids having
to export a bunch of close_* functions.
2006-03-22 20:32:04 +01:00

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/*
* Wine server objects
*
* Copyright (C) 1998 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef __WINE_SERVER_OBJECT_H
#define __WINE_SERVER_OBJECT_H
#ifdef HAVE_SYS_POLL_H
#include <sys/poll.h>
#endif
#include <sys/time.h>
#include "wine/server_protocol.h"
#include "wine/list.h"
#define DEBUG_OBJECTS
/* kernel objects */
struct namespace;
struct object;
struct object_name;
struct thread;
struct process;
struct token;
struct file;
struct wait_queue_entry;
struct async;
struct async_queue;
struct winstation;
struct directory;
struct unicode_str
{
const WCHAR *str;
size_t len;
};
/* operations valid on all objects */
struct object_ops
{
/* size of this object type */
size_t size;
/* dump the object (for debugging) */
void (*dump)(struct object *,int);
/* add a thread to the object wait queue */
int (*add_queue)(struct object *,struct wait_queue_entry *);
/* remove a thread from the object wait queue */
void (*remove_queue)(struct object *,struct wait_queue_entry *);
/* is object signaled? */
int (*signaled)(struct object *,struct thread *);
/* wait satisfied; return 1 if abandoned */
int (*satisfied)(struct object *,struct thread *);
/* signal an object */
int (*signal)(struct object *, unsigned int);
/* return an fd object that can be used to read/write from the object */
struct fd *(*get_fd)(struct object *);
/* map access rights to the specific rights for this object */
unsigned int (*map_access)(struct object *, unsigned int);
/* lookup a name if an object has a namespace */
struct object *(*lookup_name)(struct object *, struct unicode_str *,unsigned int);
/* close a handle to this object */
int (*close_handle)(struct object *,struct process *,obj_handle_t);
/* destroy on refcount == 0 */
void (*destroy)(struct object *);
};
struct object
{
unsigned int refcount; /* reference count */
const struct object_ops *ops;
struct list wait_queue;
struct object_name *name;
#ifdef DEBUG_OBJECTS
struct list obj_list;
#endif
};
struct wait_queue_entry
{
struct list entry;
struct object *obj;
struct thread *thread;
};
extern void *mem_alloc( size_t size ); /* malloc wrapper */
extern void *memdup( const void *data, size_t len );
extern void *alloc_object( const struct object_ops *ops );
extern const WCHAR *get_object_name( struct object *obj, size_t *len );
extern void dump_object_name( struct object *obj );
extern void *create_object( struct namespace *namespace, const struct object_ops *ops,
const struct unicode_str *name, struct object *parent );
extern void *create_named_object( struct namespace *namespace, const struct object_ops *ops,
const struct unicode_str *name, unsigned int attributes );
extern void unlink_named_object( struct object *obj );
extern void make_object_static( struct object *obj );
extern struct namespace *create_namespace( unsigned int hash_size );
/* grab/release_object can take any pointer, but you better make sure */
/* that the thing pointed to starts with a struct object... */
extern struct object *grab_object( void *obj );
extern void release_object( void *obj );
extern struct object *find_object( const struct namespace *namespace, const struct unicode_str *name,
unsigned int attributes );
extern int no_add_queue( struct object *obj, struct wait_queue_entry *entry );
extern int no_satisfied( struct object *obj, struct thread *thread );
extern int no_signal( struct object *obj, unsigned int access );
extern struct fd *no_get_fd( struct object *obj );
extern unsigned int no_map_access( struct object *obj, unsigned int access );
extern struct object *no_lookup_name( struct object *obj, struct unicode_str *name, unsigned int attributes );
extern int no_close_handle( struct object *obj, struct process *process, obj_handle_t handle );
extern void no_destroy( struct object *obj );
#ifdef DEBUG_OBJECTS
extern void dump_objects(void);
extern void close_objects(void);
#endif
/* event functions */
struct event;
extern struct event *create_event( struct directory *root, const struct unicode_str *name,
unsigned int attr, int manual_reset, int initial_state );
extern struct event *get_event_obj( struct process *process, obj_handle_t handle, unsigned int access );
extern void pulse_event( struct event *event );
extern void set_event( struct event *event );
extern void reset_event( struct event *event );
/* mutex functions */
extern void abandon_mutexes( struct thread *thread );
/* serial functions */
int get_serial_async_timeout(struct object *obj, int type, int count);
/* socket functions */
extern void sock_init(void);
/* debugger functions */
extern int set_process_debugger( struct process *process, struct thread *debugger );
extern void generate_debug_event( struct thread *thread, int code, void *arg );
extern void generate_startup_debug_events( struct process *process, void *entry );
extern void debug_exit_thread( struct thread *thread );
/* mapping functions */
extern int get_page_size(void);
/* registry functions */
extern void init_registry(void);
extern void flush_registry(void);
/* signal functions */
extern void start_watchdog(void);
extern void stop_watchdog(void);
extern int watchdog_triggered(void);
extern void init_signals(void);
/* atom functions */
extern atom_t add_global_atom( struct winstation *winstation, const WCHAR *str, size_t len );
extern atom_t find_global_atom( struct winstation *winstation, const WCHAR *str, size_t len );
extern int grab_global_atom( struct winstation *winstation, atom_t atom );
extern void release_global_atom( struct winstation *winstation, atom_t atom );
/* directory functions */
extern struct directory *get_directory_obj( struct process *process, obj_handle_t handle, unsigned int access );
extern struct object *find_object_dir( struct directory *root, const struct unicode_str *name,
unsigned int attr, struct unicode_str *name_left );
extern void *create_named_object_dir( struct directory *root, const struct unicode_str *name,
unsigned int attr, const struct object_ops *ops );
extern void *open_object_dir( struct directory *root, const struct unicode_str *name,
unsigned int attr, const struct object_ops *ops );
extern void init_directories(void);
/* symbolic link functions */
extern struct symlink *create_symlink( struct directory *root, const struct unicode_str *name,
unsigned int attr, const struct unicode_str *target );
/* devices */
extern void create_named_pipe_device( struct directory *root, const struct unicode_str *name );
extern void create_mailslot_device( struct directory *root, const struct unicode_str *name );
/* global variables */
/* command-line options */
extern int debug_level;
extern int master_socket_timeout;
extern int foreground;
extern const char *server_argv0;
/* server start time used for GetTickCount() */
extern time_t server_start_time;
#endif /* __WINE_SERVER_OBJECT_H */
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