refactor some get_param lookups

kill unused global.functions.maintenance

src/kernel/config.c

@@ -110,13 +110,12 @@ int turn = -1;
 
 int NewbieImmunity(void)
 {
-    static int value = -1;
-    static int gamecookie = -1;
-    if (value < 0 || gamecookie != global.cookie) {
-        gamecookie = global.cookie;
-        value = get_param_int(global.parameters, "NewbieImmunity", 0);
+    static int update = -1;
+    if (update != global.cookie) {
+        update = global.cookie;
+        global.newbie_immunity_ = get_param_int(global.parameters, "NewbieImmunity", 0);
     }
-    return value;
+    return global.newbie_immunity_;
 }
 
 bool IsImmune(const faction * f)
@@ -185,48 +184,46 @@ int AllianceAuto(void)
  */
 int HelpMask(void)
 {
-    static int rule = -1;
     static int gamecookie = -1;
-    if (rule < 0 || gamecookie != global.cookie) {
+    if (gamecookie != global.cookie) {
         const char *str = get_param(global.parameters, "rules.help.mask");
         gamecookie = global.cookie;
-        rule = 0;
+        global.help_mask_ = 0;
         if (str != NULL) {
             char *sstr = _strdup(str);
             char *tok = strtok(sstr, " ");
             while (tok) {
-                rule |= ally_flag(tok, -1);
+                global.help_mask_ |= ally_flag(tok, -1);
                 tok = strtok(NULL, " ");
             }
             free(sstr);
         }
         else {
-            rule = HELP_ALL;
+            global.help_mask_ = HELP_ALL;
         }
     }
-    return rule;
+    return global.help_mask_;
 }
 
 int AllianceRestricted(void)
 {
-    static int rule = -1;
     static int gamecookie = -1;
-    if (rule < 0 || gamecookie != global.cookie) {
+    if (gamecookie != global.cookie) {
         const char *str = get_param(global.parameters, "alliance.restricted");
         gamecookie = global.cookie;
-        rule = 0;
+        global.alliance_restricted_ = 0;
         if (str != NULL) {
             char *sstr = _strdup(str);
             char *tok = strtok(sstr, " ");
             while (tok) {
-                rule |= ally_flag(tok, -1);
+                global.alliance_restricted_ |= ally_flag(tok, -1);
                 tok = strtok(NULL, " ");
             }
             free(sstr);
         }
-        rule &= HelpMask();
+        global.alliance_restricted_ &= HelpMask();
     }
-    return rule;
+    return global.alliance_restricted_;
 }
 
 int LongHunger(const struct unit *u)
@@ -1506,11 +1503,6 @@ int maintenance_cost(const struct unit *u)
 {
     if (u == NULL)
         return MAINTENANCE;
-    if (global.functions.maintenance) {
-        int retval = global.functions.maintenance(u);
-        if (retval >= 0)
-            return retval;
-    }
     return u_race(u)->maintenance * u->number;
 }
 

src/kernel/config.h

@@ -253,16 +253,17 @@ extern "C" {
         void *vm_state;
         int data_version; /* TODO: eliminate in favor of gamedata.version */
         struct _dictionary_ *inifile;
-
-        struct global_functions {
-            int(*wage) (const struct region * r, const struct faction * f,
-                const struct race * rc, int in_turn);
-            int(*maintenance) (const struct unit * u);
-        } functions;
         /* the following are some cached values, because get_param can be slow.
          * you should almost never need to touch them */
         int cookie;
         double producexpchance_;
+        int newbie_immunity_;
+        int alliance_restricted_;
+        int help_mask_;
+        struct global_functions {
+            int(*wage) (const struct region * r, const struct faction * f,
+                const struct race * rc, int in_turn);
+        } functions;
     } settings;
 
     typedef struct helpmode {

src/kernel/xmlreader.c

@@ -891,9 +891,6 @@ static int parse_rules(xmlDocPtr doc)
                 (int(*)(const struct region *, const struct faction *,
                 const struct race *, int))fun;
         }
-        else if (strcmp((const char *)propValue, "maintenance") == 0) {
-            global.functions.maintenance = (int(*)(const struct unit *))fun;
-        }
         else {
             log_error("unknown function for rule '%s'\n", (const char *)propValue);
         }

src/tests.c

@@ -75,7 +75,6 @@ void test_cleanup(void)
 
     free_terrains();
     free_resources();
-    global.functions.maintenance = NULL;
     global.functions.wage = NULL;
     free_params(&global.parameters);
     default_locale = 0;