WINCHAIN - a framework allowing multiple processors between core and winport

This is the code I built trying to figure out the large window size issue.
It completely compiles out if not needed (see -DWINCHAIN in hints/macos10.7)
and except for one call during setup has zero overhead if compiled in and
not used.  See window.doc for more info.

Defs for UNUSED parms.  I know this has been controversial, so use is isolated
to the chain code and windows.c (where it shouldn't be intrusive and saves about
50 warnings).

Hints file for 10.7, but the build process still needs to be migrated from
the branch.

include/config.h

@@ -445,6 +445,7 @@ typedef unsigned char	uchar;
 #define STATUS_VIA_WINDOWPORT	/* re-work of the status line updating process */
 #define STATUS_HILITES		/* support hilites of status fields */
 #define DUNGEON_OVERVIEW	/* dungeon overview by Hojita Discordia */
+/* #define WINCHAIN*/		/* stacked window systems */
 /* End of Section 5 */
 
 #include "global.h"	/* Define everything else according to choices above */

include/extern.h

@@ -2600,6 +2600,10 @@ E boolean FDECL(mwelded, (struct obj *));
 /* ### windows.c ### */
 
 E void FDECL(choose_windows, (const char *));
+#ifdef WINCHAIN
+void FDECL(addto_windowchain, (const char *s));
+void NDECL(commit_windowchain);
+#endif
 E boolean NDECL(genl_can_suspend_no);
 E boolean NDECL(genl_can_suspend_yes);
 E char FDECL(genl_message_menu, (CHAR_P,int,const char *));

include/tradstdc.h

@@ -334,11 +334,18 @@ typedef genericptr genericptr_t;	/* (void *) or (char *) */
  */
 #ifdef __GNUC__
 # if __GNUC__ >= 2
-#define PRINTF_F(f,v) __attribute__ ((format (printf, f, v)))
+#  define PRINTF_F(f,v) __attribute__ ((format (printf, f, v)))
+# endif
+# if __GNUC__ >= 3
+#  define UNUSED __attribute__ ((unused))
 # endif
 #endif
+
 #ifndef PRINTF_F
-#define PRINTF_F(f,v)
+# define PRINTF_F(f,v)
+#endif
+#ifndef UNUSED
+# define UNUSED
 #endif
 
 #endif /* TRADSTDC_H */

include/winprocs.h

@@ -7,8 +7,11 @@
 
 #include "botl.h"
 
+/* NB: this MUST match chain_procs below */
 struct window_procs {
-    const char *name;
+    const char *name;		/* Names should start with [a-z].  Names must
+				 * not start with '-'.  Names starting with
+				 * '+' are reserved for processors. */
     unsigned long wincap;	/* window port capability options supported */
     unsigned long wincap2;	/* additional window port capability options supported */
     void FDECL((*win_init_nhwindows), (int *, char **));
@@ -268,4 +271,101 @@ struct wc_Opt {
 #define WININIT		0
 #define WININIT_UNDO	1
 
+#ifdef WINCHAIN
+/* Setup phases for window chain elements.
+	void *  rv = X_procs_chain(int,	int, void *, void *, void *);
+		Xprivate*	   ALLOC n	0	0	0
+		-		   INIT	 n   self    next    nextdata
+   where:
+	Xprivate* is anything window chain entry type X wants back
+	n is the link count (starting with 1)
+	self is the Xprivate* returned earlier
+	next is struct winprocs * or struct chainprocs * for the next link
+	nextdata is the Xprivate* for the next link in the chain
+*/
+#define WINCHAIN_ALLOC	0
+#define WINCHAIN_INIT	1
+
+#define CARGS void *
+
+extern FILE *wc_tracelogf;	/* Expose log file for additional debugging. */
+
+struct chain_procs {
+    const char *name;		/* Names should start with [a-z].  Names must
+				 * not start with '-'.  Names starting with
+				 * '+' are reserved for processors. */
+    unsigned long wincap;	/* window port capability options supported */
+    unsigned long wincap2;	/* additional window port capability options supported */
+    void FDECL((*win_init_nhwindows), (CARGS, int *, char **));
+    void FDECL((*win_player_selection), (CARGS));
+    void FDECL((*win_askname), (CARGS));
+    void FDECL((*win_get_nh_event), (CARGS)) ;
+    void FDECL((*win_exit_nhwindows), (CARGS, const char *));
+    void FDECL((*win_suspend_nhwindows), (CARGS, const char *));
+    void FDECL((*win_resume_nhwindows), (CARGS));
+    winid FDECL((*win_create_nhwindow), (CARGS, int));
+    void FDECL((*win_clear_nhwindow), (CARGS, winid));
+    void FDECL((*win_display_nhwindow), (CARGS, winid, BOOLEAN_P));
+    void FDECL((*win_destroy_nhwindow), (CARGS, winid));
+    void FDECL((*win_curs), (CARGS, winid,int,int));
+    void FDECL((*win_putstr), (CARGS, winid, int, const char *));
+    void FDECL((*win_putmixed), (CARGS, winid, int, const char *));
+    void FDECL((*win_display_file), (CARGS, const char *, BOOLEAN_P));
+    void FDECL((*win_start_menu), (CARGS, winid));
+    void FDECL((*win_add_menu), (CARGS, winid,int,const ANY_P *,
+		CHAR_P,CHAR_P,int,const char *, BOOLEAN_P));
+    void FDECL((*win_end_menu), (CARGS, winid, const char *));
+    int FDECL((*win_select_menu), (CARGS, winid, int, MENU_ITEM_P **));
+    char FDECL((*win_message_menu), (CARGS, CHAR_P,int,const char *));
+    void FDECL((*win_update_inventory), (CARGS));
+    void FDECL((*win_mark_synch), (CARGS));
+    void FDECL((*win_wait_synch), (CARGS));
+#ifdef CLIPPING
+    void FDECL((*win_cliparound), (CARGS, int, int));
+#endif
+#ifdef POSITIONBAR
+    void FDECL((*win_update_positionbar), (CARGS, char *));
+#endif
+    void FDECL((*win_print_glyph), (CARGS, winid,XCHAR_P,XCHAR_P,int));
+    void FDECL((*win_raw_print), (CARGS, const char *));
+    void FDECL((*win_raw_print_bold), (CARGS, const char *));
+    int FDECL((*win_nhgetch), (CARGS));
+    int FDECL((*win_nh_poskey), (CARGS, int *, int *, int *));
+    void FDECL((*win_nhbell), (CARGS));
+    int FDECL((*win_doprev_message), (CARGS));
+    char FDECL((*win_yn_function), (CARGS, const char *, const char *, CHAR_P));
+    void FDECL((*win_getlin), (CARGS, const char *,char *));
+    int FDECL((*win_get_ext_cmd), (CARGS));
+    void FDECL((*win_number_pad), (CARGS, int));
+    void FDECL((*win_delay_output), (CARGS));
+#ifdef CHANGE_COLOR
+    void FDECL((*win_change_color), (CARGS, int,long,int));
+#ifdef MAC
+    void FDECL((*win_change_background), (CARGS, int));
+    short FDECL((*win_set_font_name), (CARGS, winid, char *));
+#endif
+    char * FDECL((*win_get_color_string), (CARGS));
+#endif
+
+    /* other defs that really should go away (they're tty specific) */
+    void FDECL((*win_start_screen), (CARGS));
+    void FDECL((*win_end_screen), (CARGS));
+
+    void FDECL((*win_outrip), (CARGS, winid,int));
+    void FDECL((*win_preference_update), (CARGS, const char *));
+    char * FDECL((*win_getmsghistory), (CARGS, BOOLEAN_P));
+    void FDECL((*win_putmsghistory), (CARGS, const char *,BOOLEAN_P));
+#ifdef STATUS_VIA_WINDOWPORT
+    void FDECL((*win_status_init), (CARGS));
+    void FDECL((*win_status_finish), (CARGS));
+    void FDECL((*win_status_enablefield), (CARGS, int,const char *,const char *,BOOLEAN_P));
+    void FDECL((*win_status_update), (CARGS, int,genericptr_t,int,int));
+# ifdef STATUS_HILITES
+    void FDECL((*win_status_threshold), (CARGS, int,int,anything,int,int,int));
+# endif
+#endif
+    boolean FDECL((*win_can_suspend), (CARGS));
+};
+#endif /* WINCHAIN */
+
 #endif /* WINPROCS_H */