--- /dev/null
+/*
+ Copyright (C) 2011 jeanfi@gmail.com
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301 USA
+*/
+
+#include "cache.h"
+#include "ppastats.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+
+/*
+ Stupid cache implementation but should be enough for storing LP data.
+*/
+
+struct entry {
+ const char *key;
+ const void *value;
+ void (*fct_cleanup)(void *);
+};
+
+#define CAPACITY 1024
+
+struct cache {
+ int size;
+ struct entry entries[CAPACITY];
+};
+
+static struct cache cache;
+
+const void *cache_get(const char *key)
+{
+ int i;
+
+ for (i = 0; i < cache.size; i++)
+ if (!strcmp(cache.entries[i].key, key)) {
+ if (debug)
+ printf("DEBUG: cache hit %s\n", key);
+
+ return cache.entries[i].value;
+ }
+
+ if (debug)
+ printf("DEBUG: cache miss %s\n", key);
+
+ return NULL;
+}
+
+void cache_put(const char *key, const void *value,
+ void (*fct_cleanup)(void *))
+{
+ if (cache.size == CAPACITY) {
+ fprintf(stderr, "WARNING: exceed cache capacity\n");
+ return ;
+ }
+
+ cache.entries[cache.size].key = strdup(key);
+ cache.entries[cache.size].value = value;
+ cache.entries[cache.size].fct_cleanup = fct_cleanup;
+
+ cache.size++;
+}
+
+void cache_cleanup()
+{
+ int i;
+
+ for (i = 0; i < cache.size; i++) {
+ free((char *)cache.entries[i].key);
+ cache.entries[i].fct_cleanup((void *)cache.entries[i].value);
+ }
+}