Changeset 17555 for trunk/wp-includes/functions.php

Timestamp:

03/25/2011 02:42:20 AM (16 years ago)

Author:

dd32

Message:

First run of introducing Stream-To-File for the WP_HTTP API. Reduces memory consumption during file downloads. Implemented in download_url() for upgraders. Props sivel. See #16236

File:

• trunk/wp-includes/functions.php (modified) (1 diff)

trunk/wp-includes/functions.php

@@ -2109 +2109 @@
 
         return rtrim($base, '/') . '/' . ltrim($path, '/');
+}
+
+/**
+ * Determines a writable directory for temporary files.
+ * Function's preference is to WP_CONTENT_DIR followed by the return value of <code>sys_get_temp_dir()</code>, before finally defaulting to /tmp/
+ *
+ * In the event that this function does not find a writable location, It may be overridden by the <code>WP_TEMP_DIR</code> constant in your <code>wp-config.php</code> file.
+ *
+ * @since 2.5.0
+ *
+ * @return string Writable temporary directory
+ */
+function get_temp_dir() {
+        static $temp;
+        if ( defined('WP_TEMP_DIR') )
+                return trailingslashit(WP_TEMP_DIR);
+
+        if ( $temp )
+                return trailingslashit($temp);
+
+        $temp = WP_CONTENT_DIR . '/';
+        if ( is_dir($temp) && @is_writable($temp) )
+                return $temp;
+
+        if  ( function_exists('sys_get_temp_dir') ) {
+                $temp = sys_get_temp_dir();
+                if ( @is_writable($temp) )
+                        return trailingslashit($temp);
+        }
+
+        $temp = ini_get('upload_tmp_dir');
+        if ( is_dir($temp) && @is_writable($temp) )
+                return trailingslashit($temp);
+
+        $temp = '/tmp/';
+        return $temp;
 }