/****************************************************************************
- * Copyright (c) 2006-2016,2017 Free Software Foundation, Inc. *
+ * Copyright (c) 2006-2017,2018 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 *
#include <hashed_db.h>
#endif
-MODULE_ID("$Id: db_iterator.c,v 1.44 2017/02/04 23:27:01 tom Exp $")
+MODULE_ID("$Id: db_iterator.c,v 1.47 2018/11/24 22:42:01 tom Exp $")
#define HaveTicDirectory _nc_globals.have_tic_directory
#define KeepTicDirectory _nc_globals.keep_tic_directory
if (which < dbdLAST) {
char *value;
+ char *cached_value = my_vars[which].value;
+ bool same_value;
- if ((value = getenv(name)) == 0 || (value = strdup(value)) == 0) {
- ;
- } else if (my_vars[which].name == 0 || strcmp(my_vars[which].name, name)) {
- FreeIfNeeded(my_vars[which].value);
- my_vars[which].name = name;
- my_vars[which].value = value;
- result = TRUE;
- } else if ((my_vars[which].value != 0) ^ (value != 0)) {
- FreeIfNeeded(my_vars[which].value);
- my_vars[which].value = value;
- result = TRUE;
- } else if (value != 0 && strcmp(value, my_vars[which].value)) {
+ if ((value = getenv(name)) != 0) {
+ value = strdup(value);
+ }
+ same_value = ((value == 0 && cached_value == 0) ||
+ (value != 0 &&
+ cached_value != 0 &&
+ strcmp(value, cached_value) == 0));
+
+ /* Set variable name to enable checks in cache_expired(). */
+ my_vars[which].name = name;
+
+ if (!same_value) {
FreeIfNeeded(my_vars[which].value);
my_vars[which].value = value;
result = TRUE;
return result;
}
+#if NCURSES_USE_DATABASE || NCURSES_USE_TERMCAP
static char *
cache_getenv(const char *name, DBDIRS which)
{
}
return result;
}
+#endif
/*
* The cache expires if at least a second has passed since the initial lookup,