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wine/server/object.h
Rémi Bernon e2a1f00a38 server: Implement DBG_REPLY_LATER handling. 
This flag causes the debug event to be replayed after the target thread
continues. It can be used, after suspending the thread, to resume other
threads and later return to the breaking.

This will help implementing gdb continue/step packets correctly.

Signed-off-by: Rémi Bernon <rbernon@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
2020-03-27 21:16:13 +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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, 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 object_type;
struct unicode_str
{
const WCHAR *str;
data_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);
/* return the object type */
struct object_type *(*get_type)(struct object *);
/* 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 wait_queue_entry *);
/* wait satisfied */
void (*satisfied)(struct object *,struct wait_queue_entry *);
/* 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);
/* returns the security descriptor of the object */
struct security_descriptor *(*get_sd)( struct object * );
/* sets the security descriptor of the object */
int (*set_sd)( struct object *, const struct security_descriptor *, unsigned int );
/* lookup a name if an object has a namespace */
struct object *(*lookup_name)(struct object *, struct unicode_str *,unsigned int);
/* link an object's name into a parent object */
int (*link_name)(struct object *, struct object_name *, struct object *);
/* unlink an object's name from its parent */
void (*unlink_name)(struct object *, struct object_name *);
/* open a file object to access this object */
struct object *(*open_file)(struct object *, unsigned int access, unsigned int sharing,
unsigned int options);
/* return list of kernel objects */
struct list *(*get_kernel_obj_list)(struct object *);
/* 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 */
unsigned int handle_count;/* handle count */
const struct object_ops *ops;
struct list wait_queue;
struct object_name *name;
struct security_descriptor *sd;
#ifdef DEBUG_OBJECTS
struct list obj_list;
#endif
};
struct object_name
{
struct list entry; /* entry in the hash list */
struct object *obj; /* object owning this name */
struct object *parent; /* parent object */
data_size_t len; /* name length in bytes */
WCHAR name[1];
};
struct wait_queue_entry
{
struct list entry;
struct object *obj;
struct thread_wait *wait;
};
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 void namespace_add( struct namespace *namespace, struct object_name *ptr );
extern const WCHAR *get_object_name( struct object *obj, data_size_t *len );
extern WCHAR *get_object_full_name( struct object *obj, data_size_t *ret_len );
extern void dump_object_name( struct object *obj );
extern struct object *lookup_named_object( struct object *root, const struct unicode_str *name,
unsigned int attr, struct unicode_str *name_left );
extern data_size_t get_path_element( const WCHAR *name, data_size_t len );
extern void *create_named_object( struct object *parent, const struct object_ops *ops,
const struct unicode_str *name, unsigned int attributes,
const struct security_descriptor *sd );
extern void *open_named_object( struct object *parent, 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 );
extern void free_kernel_objects( struct object *obj );
/* 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 struct object *find_object_index( const struct namespace *namespace, unsigned int index );
extern struct object_type *no_get_type( struct object *obj );
extern int no_add_queue( struct object *obj, struct wait_queue_entry *entry );
extern void no_satisfied( struct object *obj, struct wait_queue_entry *entry );
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 security_descriptor *default_get_sd( struct object *obj );
extern int default_set_sd( struct object *obj, const struct security_descriptor *sd, unsigned int set_info );
extern int set_sd_defaults_from_token( struct object *obj, const struct security_descriptor *sd,
unsigned int set_info, struct token *token );
extern struct object *no_lookup_name( struct object *obj, struct unicode_str *name, unsigned int attributes );
extern int no_link_name( struct object *obj, struct object_name *name, struct object *parent );
extern void default_unlink_name( struct object *obj, struct object_name *name );
extern struct object *no_open_file( struct object *obj, unsigned int access, unsigned int sharing,
unsigned int options );
extern struct list *no_kernel_obj_list( struct object *obj );
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;
struct keyed_event;
extern struct event *create_event( struct object *root, const struct unicode_str *name,
unsigned int attr, int manual_reset, int initial_state,
const struct security_descriptor *sd );
extern struct keyed_event *create_keyed_event( struct object *root, const struct unicode_str *name,
unsigned int attr, const struct security_descriptor *sd );
extern struct event *get_event_obj( struct process *process, obj_handle_t handle, unsigned int access );
extern struct keyed_event *get_keyed_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, const void *arg );
extern void resume_delayed_debug_events( struct thread *thread );
extern void generate_startup_debug_events( struct process *process, client_ptr_t entry );
extern void debug_exit_thread( struct thread *thread );
/* registry functions */
extern unsigned int get_prefix_cpu_mask(void);
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 struct unicode_str *str );
extern atom_t find_global_atom( struct winstation *winstation, const struct unicode_str *str );
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 object *get_root_directory(void);
extern struct object *get_directory_obj( struct process *process, obj_handle_t handle );
extern struct object_type *get_object_type( const struct unicode_str *name );
extern int directory_link_name( struct object *obj, struct object_name *name, struct object *parent );
extern void init_directories(void);
/* symbolic link functions */
extern struct object *create_obj_symlink( struct object *root, const struct unicode_str *name,
unsigned int attr, struct object *target,
const struct security_descriptor *sd );
/* global variables */
/* command-line options */
extern int debug_level;
extern int foreground;
extern timeout_t master_socket_timeout;
extern const char *server_argv0;
/* server start time used for GetTickCount() */
extern timeout_t server_start_time;
#define KEYEDEVENT_WAIT 0x0001
#define KEYEDEVENT_WAKE 0x0002
#define KEYEDEVENT_ALL_ACCESS (STANDARD_RIGHTS_REQUIRED | 0x0003)
#endif /* __WINE_SERVER_OBJECT_H */
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