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misc/cooldowns.php

@@ -0,0 +1,45 @@
+<?php
+    if (!function_exists("apcu_fetch"))
+        error_log("apcu is not installed! Please consider installing php-pecl-apcu for significant performance improvements");
+
+
+    function load_cooldowns() {
+        if (function_exists("apcu_fetch"))
+            return apcu_exists("cooldowns") ? apcu_fetch("cooldowns") : array();
+        return array();
+    }
+
+    function save_cooldowns($cooldowns) {
+        if (function_exists("apcu_store"))
+            apcu_store("cooldowns", $cooldowns);
+    }
+
+    function set_cooldown($instance, $timeout, $cooldowns) {
+        $cooldowns[$instance] = time() + $timeout;
+        save_cooldowns($cooldowns);
+        return $cooldowns;
+    }
+
+    function has_cooldown($instance, $cooldowns) {
+        return ($cooldowns[$instance] ?? 0) > time();
+    }
+    
+    function has_cached_results($url) {
+        if (function_exists("apcu_exists"))
+            return apcu_exists("cached:$url");
+
+        return false;
+    }
+
+    function store_cached_results($url, $results, $ttl = 0) {
+        if (function_exists("apcu_store") && !empty($results) && $ttl >= 0)
+            return apcu_store("cached:$url", $results, $ttl);
+    }
+
+    function fetch_cached_results($url) {
+        if (function_exists("apcu_fetch"))
+            return apcu_fetch("cached:$url");
+
+        return array();
+    }
+?>