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/*
* Wine server objects
*
* Copyright (C) 1998 Alexandre Julliard
*/
#ifndef __WINE_SERVER_OBJECT_H
#define __WINE_SERVER_OBJECT_H
#ifndef __WINE_SERVER__
#error This file can only be used in the Wine server
#endif
#include <sys/poll.h>
#include <sys/time.h>
#include "server.h"
#define DEBUG_OBJECTS
/* kernel objects */
struct object;
struct object_name;
struct thread;
struct process;
struct file;
struct wait_queue_entry;
/* 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 *);
/* get the events we want to poll() for on this object */
int (*get_poll_events)(struct object *);
/* a poll() event occured */
void (*poll_event)(struct object *,int event);
/* return a Unix fd that can be used to read from the object */
int (*get_read_fd)(struct object *);
/* return a Unix fd that can be used to write to the object */
int (*get_write_fd)(struct object *);
/* flush the object buffers */
int (*flush)(struct object *);
/* get file information */
int (*get_file_info)(struct object *,struct get_file_info_request *);
/* destroy on refcount == 0 */
void (*destroy)(struct object *);
};
struct object
{
unsigned int refcount; /* reference count */
int fd; /* file descriptor */
int select; /* select() user id */
const struct object_ops *ops;
struct wait_queue_entry *head;
struct wait_queue_entry *tail;
struct object_name *name;
#ifdef DEBUG_OBJECTS
struct object *prev;
struct object *next;
#endif
};
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, int fd );
extern void dump_object_name( struct object *obj );
extern void *create_named_object( const struct object_ops *ops, const WCHAR *name, size_t len );
/* 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 WCHAR *name, size_t len );
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_read_fd( struct object *obj );
extern int no_write_fd( struct object *obj );
extern int no_flush( struct object *obj );
extern int no_get_file_info( struct object *obj, struct get_file_info_request *info );
extern void no_destroy( struct object *obj );
extern int default_poll_add_queue( struct object *obj, struct wait_queue_entry *entry );
extern void default_poll_remove_queue( struct object *obj, struct wait_queue_entry *entry );
extern int default_poll_signaled( struct object *obj, struct thread *thread );
extern void default_poll_event( struct object *obj, int event );
#ifdef DEBUG_OBJECTS
extern void dump_objects(void);
#endif
/* select functions */
extern int add_select_user( struct object *obj );
extern void remove_select_user( struct object *obj );
extern void change_select_fd( struct object *obj, int fd );
extern void set_select_events( struct object *obj, int events );
extern int check_select_events( int fd, int events );
extern void select_loop(void);
/* timeout functions */
struct timeout_user;
typedef void (*timeout_callback)( void *private );
extern struct timeout_user *add_timeout_user( struct timeval *when,
timeout_callback func, void *private );
extern void remove_timeout_user( struct timeout_user *user );
extern void add_timeout( struct timeval *when, int timeout );
/* return 1 if t1 is before t2 */
static inline int time_before( struct timeval *t1, struct timeval *t2 )
{
return ((t1->tv_sec < t2->tv_sec) ||
((t1->tv_sec == t2->tv_sec) && (t1->tv_usec < t2->tv_usec)));
}
/* event functions */
struct event;
extern struct event *get_event_obj( struct process *process, int 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 );
/* file functions */
extern struct file *get_file_obj( struct process *process, int handle,
unsigned int access );
extern int file_get_mmap_fd( struct file *file );
extern int grow_file( struct file *file, int size_high, int size_low );
extern int create_anonymous_file(void);
extern struct file *create_temp_file( int access );
extern void file_set_error(void);
/* console functions */
extern int alloc_console( struct process *process );
extern int free_console( struct process *process );
/* debugger functions */
extern int debugger_attach( struct process *process, struct thread *debugger );
extern void debug_exit_thread( struct thread *thread, int exit_code );
/* mapping functions */
extern int get_page_size(void);
/* registry functions */
extern void close_registry(void);
extern int debug_level;
#endif /* __WINE_SERVER_OBJECT_H */
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