savepoint, changelog later..

include/crlib/cr-alloc.h

@@ -0,0 +1,78 @@
+//
+// Yet Another POD-Bot, based on PODBot by Markus Klinge ("CountFloyd").
+// Copyright (c) YaPB Development Team.
+//
+// This software is licensed under the BSD-style license.
+// Additional exceptions apply. For full license details, see LICENSE.txt or visit:
+//     https://yapb.ru/license
+//
+
+#pragma once
+
+#include <new>
+
+#include <crlib/cr-basic.h>
+#include <crlib/cr-movable.h>
+#include <crlib/cr-platform.h>
+
+CR_NAMESPACE_BEGIN
+
+// default allocator for cr-objects
+class Allocator : public Singleton <Allocator> {
+public:
+   Allocator () = default;
+   ~Allocator () = default;
+
+public:
+   template <typename T> T *allocate (const size_t length = 1) {
+      auto ptr = reinterpret_cast <T *> (calloc (length, sizeof (T)));
+
+      if (!ptr) {
+         plat.abort ();
+      }
+
+      // calloc on linux with debug enabled doesn't always zero out memory
+#if defined (CR_DEBUG) && !defined (CR_WINDOWS)
+      auto *zeroing = reinterpret_cast <uint8 *> (ptr);
+
+      for (size_t i = 0; i < length; ++i) {
+         zeroing[i] = 0;
+      }
+#endif
+      return ptr;
+   }
+
+   template <typename T> void deallocate (T *ptr) {
+      if (ptr) {
+         free (reinterpret_cast <T *> (ptr));
+      }
+   }
+
+public:
+   template <typename T, typename ...Args> void construct (T *d, Args &&...args) {
+      new (d) T (cr::forward <Args> (args)...);
+   }
+
+   template <typename T> void destruct (T *d) {
+      d->~T ();
+   }
+
+public:
+   template <typename T, typename ...Args> T *create (Args &&...args) {
+      auto d = allocate <T> ();
+      new (d) T (cr::forward <Args> (args)...);
+
+      return d;
+   }
+
+   template <typename T> void destroy (T *ptr) {
+      if (ptr) {
+         destruct (ptr);
+         deallocate (ptr);
+      }
+   }
+};
+
+static auto &alloc = Allocator::get ();
+
+CR_NAMESPACE_END