From 13b0b54987db2684e46e337d2e5be5b81366083b Mon Sep 17 00:00:00 2001
From: assiduous <assiduous@diligentgraphics.com>
Date: Tue, 20 Oct 2020 13:26:21 -0700
Subject: Improved exception safety of pipeline state object construction

---
 Common/interface/LinearAllocator.hpp | 23 +++++++++++++++++------
 1 file changed, 17 insertions(+), 6 deletions(-)

(limited to 'Common/interface')

diff --git a/Common/interface/LinearAllocator.hpp b/Common/interface/LinearAllocator.hpp
index f8f779e5..dd137c47 100644
--- a/Common/interface/LinearAllocator.hpp
+++ b/Common/interface/LinearAllocator.hpp
@@ -50,11 +50,11 @@ public:
     LinearAllocator& operator=(LinearAllocator&&)      = delete;
     // clang-format on
 
-    explicit LinearAllocator(IMemoryAllocator& Allocator) :
+    explicit LinearAllocator(IMemoryAllocator& Allocator) noexcept :
         m_pAllocator{&Allocator}
     {}
 
-    LinearAllocator(LinearAllocator&& Other) :
+    LinearAllocator(LinearAllocator&& Other) noexcept :
         // clang-format off
         m_pDataStart   {Other.m_pDataStart   },
         m_pCurrPtr     {Other.m_pCurrPtr     },
@@ -87,7 +87,18 @@ public:
         return Ptr;
     }
 
-    void AddSpace(size_t size, size_t alignment)
+    void* ReleaseOwnership() noexcept
+    {
+        m_pAllocator = nullptr;
+        return GetDataPtr();
+    }
+
+    void* GetDataPtr() const noexcept
+    {
+        return m_pDataStart;
+    }
+
+    void AddSpace(size_t size, size_t alignment) noexcept
     {
         VERIFY(m_pDataStart == nullptr, "Memory has already been allocated");
         VERIFY(IsPowerOfTwo(alignment), "Alignment is not a power of two!");
@@ -117,18 +128,18 @@ public:
     }
 
     template <typename T>
-    void AddSpace(size_t count = 1)
+    void AddSpace(size_t count = 1) noexcept
     {
         AddSpace(sizeof(T) * count, alignof(T));
     }
 
-    void AddSpaceForString(const Char* str)
+    void AddSpaceForString(const Char* str) noexcept
     {
         VERIFY_EXPR(str != nullptr);
         AddSpace(strlen(str) + 1, 1);
     }
 
-    void AddSpaceForString(const String& str)
+    void AddSpaceForString(const String& str) noexcept
     {
         AddSpaceForString(str.c_str());
     }
-- 
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