util test script to test all the utils functions

binding/php/XdbSearcher.class.php

@@ -64,7 +64,10 @@ class XdbSearcher
             // check and autoload the vector index
             if ($vectorIndex != null) {
                 // load the vector index
-                $this->vectorIndex = null;
+                $this->vectorIndex = self::loadVectorIndexFromBuff($cBuff);
+                if ($this->vectorIndex == null) {
+                    throw new Exception("failed to load vector index from buffer");
+                }
             }
 
             $this->contentBuff = $cBuff;
@@ -301,6 +304,16 @@ class XdbSearcher
         return self::loadVectorIndex($handle);
     }
 
+    // load vector index from the specified buffer
+    public static function loadVectorIndexFromBuff($cBuff) {
+        $len = self::VectorIndexRows * self::VectorIndexCols * self::SegmentIndexSize;
+        if (strlen($cBuff) < (self::HeaderInfoLength + $len)) {
+            return null;
+        }
+
+        return substr($cBuff, self::HeaderInfoLength, $len);
+    }
+
     // load the xdb content from a file handle
     public static function loadContent($handle) {
         if (fseek($handle, 0, SEEK_END) == -1) {
@@ -340,4 +353,8 @@ class XdbSearcher
         }
     }
 
+    public static function now() {
+        return (microtime(true) * 1000);
+    }
+
 }

binding/php/util_test.php

@@ -0,0 +1,79 @@
+<?php
+// Copyright 2022 The Ip2Region Authors. All rights reserved.
+// Use of this source code is governed by a Apache2.0-style
+// license that can be found in the LICENSE file.
+//
+// @Author Lion <chenxin619315@gmail.com>
+// @Date   2022/06/22
+
+require dirname(__FILE__) . '/XdbSearcher.class.php';
+
+function testLoadHeader() {
+    $header = XdbSearcher::loadHeaderFromFile('../../data/ip2region.xdb');
+    if ($header == null) {
+        printf("failed to load header from file\n");
+        return;
+    }
+
+    printf("header loaded: ");
+    print_r($header);
+}
+
+function testLoadVectorIndex() {
+    $vIndex = XdbSearcher::loadVectorIndexFromFile('../../data/ip2region.xdb');
+    if ($vIndex == null) {
+        printf("failed to load vector index from file\n");
+        return;
+    }
+
+    printf("vector index loaded: length=%d\n", strlen($vIndex));
+}
+
+function testLoadVectorIndexFromBuff() {
+    $cBuff = XdbSearcher::loadContentFromFile('../../data/ip2region.xdb');
+    if ($cBuff == null) {
+        printf("failed to load content from file\n");
+        return;
+    }
+
+    $vIndex = XdbSearcher::loadVectorIndexFromBuff($cBuff);
+    if ($vIndex == null) {
+        printf("failed to load content from file\n");
+        return;
+    }
+
+    printf("vector index loaded, length=%d\n", strlen($vIndex));
+}
+
+function testLoadContent() {
+    $cBuff = XdbSearcher::loadContentFromFile('../../data/ip2region.xdb');
+    if ($cBuff == null) {
+        printf("failed to load content from file\n");
+        return;
+    }
+
+    printf("content loaded, length=%d\n", strlen($cBuff));
+}
+
+printf("testing loadHeader ... \n");
+$now = XdbSearcher::now();
+testLoadHeader();
+printf("done, cost: %0.5f ms\n\n", XdbSearcher::now() - $now);
+
+
+printf("testing loadVectorIndex ... \n");
+$now = XdbSearcher::now();
+testLoadVectorIndex();
+printf("done, cost: %0.5f ms\n\n", XdbSearcher::now() - $now);
+
+
+printf("testing loadVectorIndexFromBuff ... \n");
+$now = XdbSearcher::now();
+testLoadVectorIndexFromBuff();
+printf("done, cost: %0.5f ms\n\n", XdbSearcher::now() - $now);
+
+
+printf("testing loadContent ... \n");
+$now = XdbSearcher::now();
+testLoadContent();
+printf("done, cost: %0.5f ms\n\n", XdbSearcher::now() - $now);