fix #4072

Author: matyhtf

src/memory/global_memory.cc

@@ -104,7 +104,7 @@ void *GlobalMemory::alloc(uint32_t size) {
         }
     }
 
-    block = (MemoryBlock *) impl->pages.back() + impl->alloc_offset;
+    block = (MemoryBlock *) (impl->pages.back() + impl->alloc_offset);
     impl->alloc_offset += alloc_size;
 
     block->size = size;

tests/swoole_table/create_10k_object.phpt

@@ -0,0 +1,14 @@
+--TEST--
+swoole_table: create 10,000 objects
+--SKIPIF--
+<?php require  __DIR__ . '/../include/skipif.inc'; ?>
+--FILE--
+<?php
+require __DIR__ . '/../include/bootstrap.php';
+for ($i = 0; $i < 10000; $i++) {
+    $main = new Swoole\Table(1);
+}
+echo "DONE\n";
+?>
+--EXPECT--
+DONE