/* * 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 #include #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 }; struct wait_queue_entry { struct wait_queue_entry *next; struct wait_queue_entry *prev; 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, 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 *create_event( const WCHAR *name, size_t len, int manual_reset, int initial_state ); 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 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 close_registry(void); /* atom functions */ extern void close_atom_table(void); /* global variables */ /* command-line options */ extern int debug_level; extern int persistent_server; /* server start time used for GetTickCount() */ extern unsigned int server_start_ticks; #endif /* __WINE_SERVER_OBJECT_H */