ncurses 6.1 - patch 20190121

[ncurses.git] / ncurses / trace / trace_tries.c

diff --git a/ncurses/trace/trace_tries.c b/ncurses/trace/trace_tries.c
index 7cb45b8878df6e259f54c23ccf54edaf086eed6e..50ba01683e16e17597f59a22c50a6a15c18b74fd 100644 (file)
--- a/ncurses/trace/trace_tries.c
+++ b/ncurses/trace/trace_tries.c
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1999-2001,2006 Free Software Foundation, Inc.              *
+ * Copyright (c) 1999-2011,2012 Free Software Foundation, Inc.              *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -27,7 +27,7 @@
  ****************************************************************************/
 
 /****************************************************************************
- *  Author: Thomas E. Dickey <dickey@clark.net> 1999                        *
+ *  Author: Thomas E. Dickey 1999                                           *
  ****************************************************************************/
 /*
  *     trace_tries.c - Tracing/Debugging buffers (keycode tries-trees)
@@ -35,42 +35,47 @@
 
 #include <curses.priv.h>
 
-MODULE_ID("$Id: trace_tries.c,v 1.11 2006/12/30 16:25:45 tom Exp $")
+MODULE_ID("$Id: trace_tries.c,v 1.17 2012/10/27 20:50:50 tom Exp $")
 
 #ifdef TRACE
-static unsigned char *buffer;
-static unsigned len;
+#define my_buffer _nc_globals.tracetry_buf
+#define my_length _nc_globals.tracetry_used
 
 static void
 recur_tries(TRIES * tree, unsigned level)
 {
-    if (level > len)
-       buffer = (unsigned char *) realloc(buffer, len = (level + 1) * 4);
+    if (level > my_length) {
+       my_length = (level + 1) * 4;
+       my_buffer = (unsigned char *) _nc_doalloc(my_buffer, my_length);
+    }
 
-    while (tree != 0) {
-       if ((buffer[level] = tree->ch) == 0)
-           buffer[level] = 128;
-       buffer[level + 1] = 0;
-       if (tree->value != 0) {
-           _tracef("%5d: %s (%s)", tree->value,
-                   _nc_visbuf((char *) buffer), keyname(tree->value));
+    if (my_buffer != 0) {
+       while (tree != 0) {
+           if ((my_buffer[level] = tree->ch) == 0)
+               my_buffer[level] = 128;
+           my_buffer[level + 1] = 0;
+           if (tree->value != 0) {
+               _tracef("%5d: %s (%s)", tree->value,
+                       _nc_visbuf((char *) my_buffer), keyname(tree->value));
+           }
+           if (tree->child)
+               recur_tries(tree->child, level + 1);
+           tree = tree->sibling;
        }
-       if (tree->child)
-           recur_tries(tree->child, level + 1);
-       tree = tree->sibling;
     }
 }
 
 NCURSES_EXPORT(void)
 _nc_trace_tries(TRIES * tree)
 {
-    buffer = typeMalloc(unsigned char, len = 80);
-    _tracef("BEGIN tries %p", tree);
-    recur_tries(tree, 0);
-    _tracef(". . . tries %p", tree);
-    free(buffer);
+    if ((my_buffer = typeMalloc(unsigned char, my_length = 80)) != 0) {
+       _tracef("BEGIN tries %p", (void *) tree);
+       recur_tries(tree, 0);
+       _tracef(". . . tries %p", (void *) tree);
+       free(my_buffer);
+    }
 }
 
 #else
-empty_module(_nc_trace_tries)
+EMPTY_MODULE(_nc_empty_trace_tries)
 #endif