/* xscreensaver, Copyright (c) 1993-2017 Jamie Zawinski * * Permission to use, copy, modify, distribute, and sell this software and its * documentation for any purpose is hereby granted without fee, provided that * the above copyright notice appear in all copies and that both that * copyright notice and this permission notice appear in supporting * documentation. No representations are made about the suitability of this * software for any purpose. It is provided "as is" without express or * implied warranty. */ #ifndef __XSCREENSAVER_H__ #define __XSCREENSAVER_H__ #include #ifdef HAVE_UNISTD_H # include #endif #include #include #ifdef HAVE_SIGACTION # include /* for sigset_t */ #endif #include "prefs.h" extern char *progname; extern char *progclass; #undef countof #define countof(x) (sizeof((x))/sizeof((*x))) /* ======================================================================= server extensions and virtual roots ======================================================================= */ extern Bool restore_real_vroot (saver_info *si); extern void disable_builtin_screensaver (saver_info *, Bool unblank_screen_p); extern Bool ensure_no_screensaver_running (Display *, Screen *); #ifdef HAVE_PROC_INTERRUPTS extern Bool query_proc_interrupts_available (saver_info *, const char **why); #endif #ifdef HAVE_XINPUT extern Bool query_xinput_extension (saver_info *); extern void init_xinput_extension (saver_info *si); #endif /* Display Power Management System (DPMS) interface. */ extern Bool monitor_powered_on_p (saver_info *si); extern void monitor_power_on (saver_info *si, Bool on_p); /* ======================================================================= blanking ======================================================================= */ extern Bool update_screen_layout (saver_info *si); extern void initialize_screensaver_window (saver_info *si); extern void initialize_screen_root_widget (saver_screen_info *ssi); extern void raise_window (saver_info *si, Bool inhibit_fade, Bool between_hacks_p, Bool dont_clear); extern Bool blank_screen (saver_info *si); extern void unblank_screen (saver_info *si); extern void resize_screensaver_window (saver_info *si); extern void get_screen_viewport (saver_screen_info *ssi, int *x_ret, int *y_ret, int *w_ret, int *h_ret, int target_x, int target_y, Bool verbose_p); /* ======================================================================= locking ======================================================================= */ #ifndef NO_LOCKING extern Bool unlock_p (saver_info *si); extern Bool lock_priv_init (int argc, char **argv, Bool verbose_p); extern Bool lock_init (int argc, char **argv, Bool verbose_p); extern Bool passwd_valid_p (const char *typed_passwd, Bool verbose_p); #endif /* NO_LOCKING */ extern void set_locked_p (saver_info *si, Bool locked_p); extern int move_mouse_grab (saver_info *si, Window to, Cursor cursor, int to_screen_no); extern int mouse_screen (saver_info *si); /* ======================================================================= runtime privileges ======================================================================= */ extern void hack_uid (saver_info *si); extern void describe_uids (saver_info *si, FILE *out); /* ======================================================================= demoing ======================================================================= */ extern void draw_shaded_rectangle (Display *dpy, Window window, int x, int y, int width, int height, int thickness, unsigned long top_color, unsigned long bottom_color); extern int string_width (XFontStruct *font, char *s); extern void make_splash_dialog (saver_info *si); extern void handle_splash_event (saver_info *si, XEvent *e); extern XFontStruct *splash_load_font (Display *, char *name, char *class); /* ======================================================================= timers ======================================================================= */ extern void start_notice_events_timer (saver_info *, Window, Bool verbose_p); extern void cycle_timer (XtPointer si, XtIntervalId *id); extern void activate_lock_timer (XtPointer si, XtIntervalId *id); extern void reset_watchdog_timer (saver_info *si, Bool on_p); extern void idle_timer (XtPointer si, XtIntervalId *id); extern void de_race_timer (XtPointer si, XtIntervalId *id); extern void sleep_until_idle (saver_info *si, Bool until_idle_p); extern void reset_timers (saver_info *si); extern void schedule_wakeup_event (saver_info *si, Time when, Bool verbose_p); /* ======================================================================= remote control ======================================================================= */ extern Bool handle_clientmessage (saver_info *, XEvent *, Bool); extern void maybe_reload_init_file (saver_info *); /* ======================================================================= subprocs ======================================================================= */ extern void handle_signals (saver_info *si); #ifdef HAVE_SIGACTION extern sigset_t block_sigchld (void); #else /* !HAVE_SIGACTION */ extern int block_sigchld (void); #endif /* !HAVE_SIGACTION */ extern void unblock_sigchld (void); extern void hack_environment (saver_info *si); extern void hack_subproc_environment (Screen *, Window saver_window); extern void init_sigchld (void); extern void spawn_screenhack (saver_screen_info *ssi); extern pid_t fork_and_exec (saver_screen_info *ssi, const char *command); extern void kill_screenhack (saver_screen_info *ssi); extern void suspend_screenhack (saver_screen_info *ssi, Bool suspend_p); extern Bool screenhack_running_p (saver_info *si); extern void emergency_kill_subproc (saver_info *si); extern Bool select_visual (saver_screen_info *ssi, const char *visual_name); extern void store_saver_status (saver_info *si); extern const char *signal_name (int signal); /* ======================================================================= subprocs diagnostics ======================================================================= */ extern FILE *real_stderr; extern FILE *real_stdout; extern void stderr_log_file (saver_info *si); extern void initialize_stderr (saver_info *si); extern void reset_stderr (saver_screen_info *ssi); extern void clear_stderr (saver_screen_info *ssi); extern void shutdown_stderr (saver_info *si); /* ======================================================================= misc ======================================================================= */ extern const char *blurb (void); extern void save_argv (int argc, char **argv); extern void saver_exit (saver_info *si, int status, const char *core_reason); extern void restart_process (saver_info *si); extern int saver_ehandler (Display *dpy, XErrorEvent *error); extern int BadWindow_ehandler (Display *dpy, XErrorEvent *error); extern Bool window_exists_p (Display *dpy, Window window); extern Bool in_signal_handler_p; extern char *timestring (time_t); extern Bool display_is_on_console_p (saver_info *si); extern Visual *get_best_gl_visual (saver_info *si, Screen *screen); extern void check_for_leaks (const char *where); extern void describe_monitor_layout (saver_info *si); #ifdef HAVE_XF86VMODE Bool safe_XF86VidModeGetViewPort (Display *, int, int *, int *); #endif /* HAVE_XF86VMODE */ extern Atom XA_VROOT, XA_XSETROOT_ID, XA_ESETROOT_PMAP_ID, XA_XROOTPMAP_ID; extern Atom XA_NET_WM_USER_TIME; extern Atom XA_SCREENSAVER, XA_SCREENSAVER_VERSION, XA_SCREENSAVER_ID; extern Atom XA_SCREENSAVER_STATUS, XA_LOCK, XA_BLANK; extern Atom XA_DEMO, XA_PREFS; #endif /* __XSCREENSAVER_H__ */