From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shelley Vohr <shelley.vohr@gmail.com>
Date: Mon, 22 Oct 2018 10:47:11 -0700
Subject: add_realloc.patch
Blink overrides ArrayBuffer's allocator with its own one, while Node simply
uses malloc and free, so we need to use v8's allocator in Node. As part of the
10.6.0 upgrade, we needed to make SerializerDelegate accept an allocator
argument in its constructor, and override ReallocateBufferMemory and
FreeBufferMemory to use the allocator. We cannot simply allocate and then memcpy
when we override ReallocateBufferMemory, so we therefore need to implement
Realloc on the v8 side.
diff --git a/include/v8.h b/include/v8.h
index 7d1ab73901b02fe4341d2dff14a82edbd505813d..a1043c455e226fd9773dce536748de7bb5779977 100644
--- a/include/v8.h
+++ b/include/v8.h
@@ -4618,6 +4618,13 @@ class V8_EXPORT ArrayBuffer : public Object {
*/
virtual void* AllocateUninitialized(size_t length) = 0;
+ /**
+ * Free the memory block of size |length|, pointed to by |data|.
+ * That memory must be previously allocated by |Allocate| and not yet freed
+ * with a call to |Free| or |Realloc|
+ */
+ virtual void* Realloc(void* data, size_t length);
+
/**
* Free the memory block of size |length|, pointed to by |data|.
* That memory is guaranteed to be previously allocated by |Allocate|.
diff --git a/src/api/api.cc b/src/api/api.cc
index 838b388f0b847a5197d2d7c6965841d1e343e508..b0e754852fab7f657aa8fa86d424bd2bbc23b712 100644
--- a/src/api/api.cc
+++ b/src/api/api.cc
@@ -507,6 +507,10 @@ void V8::SetSnapshotDataBlob(StartupData* snapshot_blob) {
i::V8::SetSnapshotBlob(snapshot_blob);
}
+void* v8::ArrayBuffer::Allocator::Realloc(void* data, size_t length) {
+ UNIMPLEMENTED();
+}
namespace {
class ArrayBufferAllocator : public v8::ArrayBuffer::Allocator {
