1 files changed, 21 insertions, 0 deletions
diff --git a/src/node_wasi.cc b/src/node_wasi.cc
index e9bcb42ad6..39669df490 100644
--- a/src/node_wasi.cc
+++ b/src/node_wasi.cc
@@ -1,6 +1,8 @@
 #include "env-inl.h"
 #include "base_object-inl.h"
 #include "debug_utils.h"
+#include "memory_tracker-inl.h"
+#include "node_mem-inl.h"
 #include "util-inl.h"
 #include "node.h"
 #include "uv.h"
@@ -85,14 +87,33 @@ WASI::WASI(Environment* env,
            Local<Object> object,
            uvwasi_options_t* options) : BaseObject(env, object) {
   MakeWeak();
+  alloc_info_ = MakeAllocator();
+  options->allocator = &alloc_info_;
   CHECK_EQ(uvwasi_init(&uvw_, options), UVWASI_ESUCCESS);
 }
 
 
 WASI::~WASI() {
   uvwasi_destroy(&uvw_);
+  CHECK_EQ(current_uvwasi_memory_, 0);
 }
 
+void WASI::MemoryInfo(MemoryTracker* tracker) const {
+  tracker->TrackField("memory", memory_);
+  tracker->TrackFieldWithSize("uvwasi_memory", current_uvwasi_memory_);
+}
+
+void WASI::CheckAllocatedSize(size_t previous_size) const {
+  CHECK_GE(current_uvwasi_memory_, previous_size);
+}
+
+void WASI::IncreaseAllocatedSize(size_t size) {
+  current_uvwasi_memory_ += size;
+}
+
+void WASI::DecreaseAllocatedSize(size_t size) {
+  current_uvwasi_memory_ -= size;
+}
 
 void WASI::New(const FunctionCallbackInfo<Value>& args) {
   CHECK(args.IsConstructCall());