From 0b7929327a4af7e6d249975cc713c5ba900ff504 Mon Sep 17 00:00:00 2001
From: Matthew Parkinson <mattpark@microsoft.com>
Date: Mon, 19 Jul 2021 15:45:51 +0100
Subject: [PATCH] Add errors for failing to initialise the system.

---
 src/backend/pagemap.h | 5 +++++
 src/mem/pool.h        | 6 ++++++
 2 files changed, 11 insertions(+)

diff --git a/src/backend/pagemap.h b/src/backend/pagemap.h
index 22126c8..4f4ab6e 100644
--- a/src/backend/pagemap.h
+++ b/src/backend/pagemap.h
@@ -134,6 +134,11 @@ namespace snmalloc
 
       auto new_body_untyped = PAL::reserve(request_size);
 
+      if (new_body_untyped == nullptr)
+      {
+        PAL::error("Failed to initialisation snmalloc.");
+      }
+
 #ifdef SNMALLOC_CHECK_CLIENT
       // Begin pagemap at random offset within the additionally allocated space.
       static_assert(bits::is_pow2(sizeof(T)), "Next line assumes this.");
diff --git a/src/mem/pool.h b/src/mem/pool.h
index e57dbc5..d718c79 100644
--- a/src/mem/pool.h
+++ b/src/mem/pool.h
@@ -51,6 +51,12 @@ namespace snmalloc
       p = ChunkAllocator::alloc_meta_data<T>(
         h, nullptr, std::forward<Args>(args)...);
 
+      if (p == nullptr)
+      {
+        SharedStateHandle::Backend::Pal::error(
+          "Failed to initialisation thread local allocator.");
+      }
+
       FlagLock f(pool.lock);
       p->list_next = pool.list;
       pool.list = p;