Add:Core:Possibility to configure cache size

git-svn-id: http://svn.code.sf.net/p/navit/code/trunk/navit@5393 ffa7fe5e-494d-0410-b361-a75ebd5db220

6 files changed, 23 insertions, 0 deletions

diff --git a/navit/attr_def.h b/navit/attr_def.h
index f67c313ca..1527ea8db 100644
--- a/navit/attr_def.h
+++ b/navit/attr_def.h
@@ -174,6 +174,7 @@ ATTR(tunnel_extrapolation)
 ATTR(street_count)
 ATTR(min_dist)
 ATTR(max_dist)
+ATTR(cache_size)
 ATTR2(0x00027500,type_rel_abs_begin)
 /* These attributes are int that can either hold relative		*
  * or absolute values. A relative value is indicated by 		*
diff --git a/navit/cache.c b/navit/cache.c
index fcf5137a4..e3f2f29d3 100644
--- a/navit/cache.c
+++ b/navit/cache.c
@@ -113,6 +113,12 @@ cache_new(int id_size, int size)
 	return cache;
 }
 
+void
+cache_resize(struct cache *cache, int size)
+{
+	cache->size=size;
+}
+
 static void
 cache_insert_mru(struct cache *cache, struct cache_entry_list *list, struct cache_entry *entry)
 {
diff --git a/navit/cache.h b/navit/cache.h
index cdeea02e5..b3f5adb09 100644
--- a/navit/cache.h
+++ b/navit/cache.h
@@ -2,6 +2,7 @@ struct cache_entry;
 struct cache;
 /* prototypes */
 struct cache *cache_new(int id_size, int size);
+void cache_resize(struct cache *cache, int size);
 void *cache_entry_new(struct cache *cache, void *id, int size);
 void cache_entry_destroy(struct cache *cache, void *data);
 void *cache_lookup(struct cache *cache, void *id);
diff --git a/navit/config_.c b/navit/config_.c
index d61cfc4c3..ffeef9c1b 100644
--- a/navit/config_.c
+++ b/navit/config_.c
@@ -26,6 +26,7 @@
 #include "callback.h"
 #include "navit.h"
 #include "config_.h"
+#include "file.h"
 #ifdef HAVE_API_WIN32_CE
 #include "libc.h"
 #endif
@@ -92,6 +93,8 @@ config_set_attr_int(struct config *this_, struct attr *attr)
 	case attr_language:
 		setenv("LANG",attr->u.str,1);
 		return 1;
+	case attr_cache_size:
+		return file_set_cache_size(attr->u.num);
 	default:
 		return 0;
 	}
diff --git a/navit/file.c b/navit/file.c
index bc0a223d8..dd6fa82fc 100644
--- a/navit/file.c
+++ b/navit/file.c
@@ -929,6 +929,17 @@ file_get_os_handle(struct file *file)
 	return GINT_TO_POINTER(file->fd);
 }
 
+int
+file_set_cache_size(int cache_size)
+{
+#ifdef CACHE_SIZE
+	cache_resize(file_cache, cache_size);
+	return 1;
+#else
+	return 0;
+#endif
+}
+
 void
 file_init(void)
 {
diff --git a/navit/file.h b/navit/file.h
index 124db12ad..40114faa2 100644
--- a/navit/file.h
+++ b/navit/file.h
@@ -94,6 +94,7 @@ void file_wordexp_destroy(struct file_wordexp *wexp);
 int file_get_param(struct file *file, struct param_list *param, int count);
 int file_version(struct file *file, int byname);
 void *file_get_os_handle(struct file *file);
+int file_set_cache_size(int cache_size);
 void file_init(void);
 int file_is_reg(char *name);
 void file_data_remove(struct file *file, unsigned char *data);