-/* xscreensaver, Copyright (c) 1993-2002 Jamie Zawinski <jwz@jwz.org>
+/* xscreensaver, Copyright (c) 1993-2014 Jamie Zawinski <jwz@jwz.org>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
#include <string.h>
#include <stdio.h>
+#ifdef HAVE_SIGACTION
+# include <signal.h> /* for sigset_t */
+#endif
+
#include "prefs.h"
extern char *progname;
extern char *progclass;
-typedef struct saver_info saver_info;
-typedef struct saver_screen_info saver_screen_info;
-typedef struct passwd_dialog_data passwd_dialog_data;
-typedef struct splash_dialog_data splash_dialog_data;
-
#undef countof
#define countof(x) (sizeof((x))/sizeof((*x)))
-
-
-/* This structure holds all the data that applies to the program as a whole,
- or to the non-screen-specific parts of the display connection.
-
- The saver_preferences structure (prefs.h) holds all the user-specified
- parameters, read from the command line, the resource database, or entered
- through a dialog box.
- */
-struct saver_info {
- char *version;
- saver_preferences prefs;
-
- int nscreens;
- saver_screen_info *screens;
- saver_screen_info *default_screen; /* ...on which dialogs will appear. */
-
-
- /* =======================================================================
- global connection info
- ======================================================================= */
-
- XtAppContext app;
- Display *dpy;
-
- /* =======================================================================
- server extension info
- ======================================================================= */
-
- Bool using_xidle_extension; /* which extension is being used. */
- Bool using_mit_saver_extension; /* Note that `p->use_*' is the *request*, */
- Bool using_sgi_saver_extension; /* and `si->using_*' is the *reality*. */
- Bool using_proc_interrupts;
-
-# ifdef HAVE_MIT_SAVER_EXTENSION
- int mit_saver_ext_event_number;
- int mit_saver_ext_error_number;
-# endif
-# ifdef HAVE_SGI_SAVER_EXTENSION
- int sgi_saver_ext_event_number;
- int sgi_saver_ext_error_number;
-# endif
-
-
- /* =======================================================================
- blanking
- ======================================================================= */
-
- Bool screen_blanked_p; /* Whether the saver is currently active. */
- Window mouse_grab_window; /* Window holding our mouse grab */
- Window keyboard_grab_window; /* Window holding our keyboard grab */
- int mouse_grab_screen; /* The screen number the mouse grab is on */
- int keyboard_grab_screen; /* The screen number the keyboard grab is on */
- Bool fading_possible_p; /* Whether fading to/from black is possible. */
- Bool throttled_p; /* Whether we should temporarily just blank
- the screen, not run hacks. */
- time_t blank_time; /* The time at which the screen was blanked
- (if currently blanked) or unblanked (if
- not blanked.) */
-
-
- /* =======================================================================
- locking and runtime privileges
- ======================================================================= */
-
- Bool locked_p; /* Whether the screen is currently locked. */
- Bool dbox_up_p; /* Whether the demo-mode or passwd dialogs
- are currently visible */
-
- Bool locking_disabled_p; /* Sometimes locking is impossible. */
- char *nolock_reason; /* This is why. */
-
- char *orig_uid; /* What uid/gid we had at startup, before
- discarding privileges. */
- char *uid_message; /* Any diagnostics from our attempt to
- discard privileges (printed only in
- -verbose mode.) */
- Bool dangerous_uid_p; /* Set to true if we're running as a user id
- which is known to not be a normal, non-
- privileged user. */
-
- Window passwd_dialog; /* The password dialog, if its up. */
- passwd_dialog_data *pw_data; /* Other info necessary to draw it. */
-
- int unlock_failures; /* Counts failed login attempts while the
- screen is locked. */
-
- char *unlock_typeahead; /* If the screen is locked, and the user types
- a character, we assume that it is the first
- character of the password. It's stored here
- for the password dialog to use to populate
- itself. */
-
-
- /* =======================================================================
- demoing
- ======================================================================= */
-
- Bool demoing_p; /* Whether we are demoing a single hack
- (without UI.) */
-
- Window splash_dialog; /* The splash dialog, if its up. */
- splash_dialog_data *sp_data; /* Other info necessary to draw it. */
-
-
- /* =======================================================================
- timers
- ======================================================================= */
-
- XtIntervalId lock_id; /* Timer to implement `prefs.lock_timeout' */
- XtIntervalId cycle_id; /* Timer to implement `prefs.cycle' */
- XtIntervalId timer_id; /* Timer to implement `prefs.timeout' */
- XtIntervalId watchdog_id; /* Timer to implement `prefs.watchdog */
- XtIntervalId check_pointer_timer_id; /* `prefs.pointer_timeout' */
-
- time_t last_activity_time; /* Used only when no server exts. */
- time_t last_wall_clock_time; /* Used to detect laptop suspend. */
- saver_screen_info *last_activity_screen;
-
- Bool emergency_lock_p; /* Set when the wall clock has jumped
- (presumably due to laptop suspend) and we
- need to lock down right away instead of
- waiting for the lock timer to go off. */
-
-
- /* =======================================================================
- remote control
- ======================================================================= */
-
- int selection_mode; /* Set to -1 if the NEXT ClientMessage has just
- been received; set to -2 if PREV has just
- been received; set to N if SELECT or DEMO N
- has been received. (This is kind of nasty.)
- */
-
- /* =======================================================================
- subprocs
- ======================================================================= */
-
- XtIntervalId stderr_popup_timer;
-
-};
-
-
-/* This structure holds all the data that applies to the screen-specific parts
- of the display connection; if the display has multiple screens, there will
- be one of these for each screen.
- */
-struct saver_screen_info {
- saver_info *global;
-
- int number;
- Screen *screen;
- Widget toplevel_shell;
-
- /* =======================================================================
- blanking
- ======================================================================= */
-
- Window screensaver_window; /* The window that will impersonate the root,
- when the screensaver activates. Note that
- the window stored here may change, as we
- destroy and recreate it on different
- visuals. */
- Colormap cmap; /* The colormap that goes with the window. */
- Bool install_cmap_p; /* Whether this screen should have its own
- colormap installed, for whichever of several
- reasons. This is definitive (even a false
- value here overrides prefs->install_cmap_p.)
- */
- Visual *current_visual; /* The visual of the window. */
- int current_depth; /* How deep the visual (and the window) are. */
-
- Visual *default_visual; /* visual to use when none other specified */
- Visual *best_gl_visual; /* visual to use for GL hacks */
-
- Window real_vroot; /* The original virtual-root window. */
- Window real_vroot_value; /* What was in the __SWM_VROOT property. */
-
- Cursor cursor; /* A blank cursor that goes with the
- real root window. */
- unsigned long black_pixel; /* Black, allocated from `cmap'. */
-
- int blank_vp_x, blank_vp_y; /* Where the virtual-scrolling viewport was
- when the screen went blank. We need to
- prevent the X server from letting the mouse
- bump the edges to scroll while the screen
- is locked, so we reset to this when it has
- moved, and the lock dialog is up... */
-
-# ifdef HAVE_MIT_SAVER_EXTENSION
- Window server_mit_saver_window;
-# endif
-
-
- /* =======================================================================
- demoing
- ======================================================================= */
-
- Colormap demo_cmap; /* The colormap that goes with the dialogs:
- this might be the same as `cmap' so care
- must be taken not to free it while it's
- still in use. */
-
- /* =======================================================================
- timers
- ======================================================================= */
-
- int poll_mouse_last_root_x; /* Used only when no server exts. */
- int poll_mouse_last_root_y;
- Window poll_mouse_last_child;
- unsigned int poll_mouse_last_mask;
-
-
- /* =======================================================================
- subprocs
- ======================================================================= */
-
- int current_hack; /* Index into `prefs.screenhacks' */
- pid_t pid;
-
- int stderr_text_x;
- int stderr_text_y;
- int stderr_line_height;
- XFontStruct *stderr_font;
- GC stderr_gc;
- Window stderr_overlay_window; /* Used if the server has overlay planes */
- Colormap stderr_cmap;
-};
-
-
\f
/* =======================================================================
extern void disable_builtin_screensaver (saver_info *, Bool unblank_screen_p);
extern Bool ensure_no_screensaver_running (Display *, Screen *);
-#ifdef HAVE_MIT_SAVER_EXTENSION
-extern Bool query_mit_saver_extension (saver_info *);
-#endif
-#ifdef HAVE_SGI_SAVER_EXTENSION
-extern Bool query_sgi_saver_extension (saver_info *);
-#endif
-#ifdef HAVE_XIDLE_EXTENSION
-extern Bool query_xidle_extension (saver_info *);
-#endif
#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);
+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,
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 void handle_signals (saver_info *si);
-extern void block_sigchld (void);
+#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 (saver_screen_info *ssi);
+extern void hack_subproc_environment (Screen *, Window saver_window);
extern void init_sigchld (void);
-extern void spawn_screenhack (saver_info *si, Bool first_time_p);
-extern void kill_screenhack (saver_info *si);
-extern void suspend_screenhack (saver_info *si, Bool suspend_p);
+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);
-extern void exec_command (const char *shell, const char *command,
- int nice_level);
/* =======================================================================
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 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 (void);
extern Bool display_is_on_console_p (saver_info *si);
-extern Visual *get_best_gl_visual (saver_screen_info *ssi);
+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;