d549f6909e
file descriptor. Associate file descriptors with handles on the server side so that we don't need to pass the fd every time the client wants to use it.
205 lines
6.6 KiB
C
205 lines
6.6 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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#ifndef __WINE_SERVER_OBJECT_H
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#define __WINE_SERVER_OBJECT_H
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#ifndef __WINE_SERVER__
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#error This file can only be used in the Wine server
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#endif
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#include <sys/poll.h>
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#include <sys/time.h>
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#include "server.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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/* 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_request *);
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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_request *info );
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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 );
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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, int 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, int handle,
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unsigned int access );
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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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/* async functions */
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void async_add_timeout(struct async *ov, int timeout);
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int async_count(struct async *ov);
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int async_type(struct async *ov);
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int async_get_eventmask(struct async *ov);
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int async_set_eventmask(struct async *ov, int eventmask);
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/* serial functions */
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int serial_async_setup(struct object *obj, struct async *ov);
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int serial_async_get_poll_events( struct async *ov );
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int serial_async_poll_event(struct object *obj, int event);
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/* console functions */
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extern int alloc_console( struct process *process );
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extern int free_console( struct process *process );
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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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/* 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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