From 00c0d78199fcfbbb20828be5e06fd2d271fa4c1e Mon Sep 17 00:00:00 2001
From: Steven Le Rouzic <steven.lerouzic@gmail.com>
Date: Sun, 24 Mar 2024 23:49:26 +0100
Subject: Initial commit

---
 deimos/core/allocator.h | 74 +++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 74 insertions(+)
 create mode 100644 deimos/core/allocator.h

(limited to 'deimos/core/allocator.h')

diff --git a/deimos/core/allocator.h b/deimos/core/allocator.h
new file mode 100644
index 0000000..4acdb6d
--- /dev/null
+++ b/deimos/core/allocator.h
@@ -0,0 +1,74 @@
+#pragma once
+
+#include "deimos/core/base.h"
+#include "deimos/core/id_name.h"
+
+namespace deimos
+{
+
+struct MemoryScope { uint32 id; };
+
+class IAllocator
+{
+protected:
+    const MemoryScope m_scope;
+
+public:
+    constexpr explicit IAllocator(MemoryScope scope) : m_scope{scope} {}
+
+    deimos_NO_COPY_MOVE(IAllocator);
+
+    virtual ~IAllocator() = default;
+
+    [[nodiscard]]
+    virtual void* Reallocate(
+        void* old_ptr, int64 old_size, int64 new_size,
+        const char* file = __builtin_FILE(), int32 line = __builtin_LINE()) = 0;
+
+    [[nodiscard]]
+    constexpr void* Allocate(
+        int64 new_size,
+        const char* file = __builtin_FILE(), int32 line = __builtin_LINE())
+    {
+        return Reallocate(nullptr, 0, new_size, file, line);
+    }
+
+    constexpr void Free(
+        void* old_ptr, int64 old_size,
+        const char* file = __builtin_FILE(), int32 line = __builtin_LINE())
+    {
+        (void)Reallocate(old_ptr, old_size, 0, file, line);
+    }
+
+    template<typename T, typename... Args>
+    T* New(
+        Args&&... args,
+        const char* file = __builtin_FILE(), int32 line = __builtin_LINE())
+    {
+        void* ptr = Allocate(sizeof(T), file, line);
+        return new(ptr) T(std::forward<Args>(args)...);
+    }
+
+    template<typename T>
+    void Delete(
+        T* t,
+        const char* file = __builtin_FILE(), int32 line = __builtin_LINE())
+    {
+        if constexpr (!kIsTriviallyDestructible<T>)
+        {
+            t->~T();
+        }
+        Free(t, sizeof(T), file, line);
+    }
+};
+
+class AllocatorApi
+{
+public:
+    static constexpr IdName kApiName{"deimos::AllocatorApi"};
+
+    IAllocator* system{};
+};
+
+} // namespace deimos
+
-- 
cgit