From 7b09710392d35fb55b52031d447a542d99fc6b4b Mon Sep 17 00:00:00 2001
From: Tavian Barnes <tavianator@tavianator.com>
Date: Tue, 19 Aug 2014 17:10:03 -0400
Subject: Modularize the libdimension codebase.

---
 libdimension/base/malloc.c | 94 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 94 insertions(+)
 create mode 100644 libdimension/base/malloc.c

(limited to 'libdimension/base/malloc.c')

diff --git a/libdimension/base/malloc.c b/libdimension/base/malloc.c
new file mode 100644
index 0000000..6aaf68c
--- /dev/null
+++ b/libdimension/base/malloc.c
@@ -0,0 +1,94 @@
+/*************************************************************************
+ * Copyright (C) 2010-2014 Tavian Barnes <tavianator@tavianator.com>     *
+ *                                                                       *
+ * This file is part of The Dimension Library.                           *
+ *                                                                       *
+ * The Dimension Library is free software; you can redistribute it and/  *
+ * or modify it under the terms of the GNU Lesser General Public License *
+ * as published by the Free Software Foundation; either version 3 of the *
+ * License, or (at your option) any later version.                       *
+ *                                                                       *
+ * The Dimension Library is distributed in the hope that it will be      *
+ * useful, but WITHOUT ANY WARRANTY; without even the implied warranty   *
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU  *
+ * Lesser General Public License for more details.                       *
+ *                                                                       *
+ * You should have received a copy of the GNU Lesser General Public      *
+ * License along with this program.  If not, see                         *
+ * <http://www.gnu.org/licenses/>.                                       *
+ *************************************************************************/
+
+/**
+ * @file
+ * Dynamic memory.
+ */
+
+#include "internal.h"
+#include <stdlib.h>
+#include <string.h>
+#include <stdatomic.h>
+
+#if DMNSN_DEBUG
+static atomic_size_t dmnsn_allocs = ATOMIC_VAR_INIT(0);
+#endif
+
+void *
+dmnsn_malloc(size_t size)
+{
+  void *ptr = malloc(size);
+  if (!ptr) {
+    dmnsn_error("Memory allocation failed.");
+  }
+
+#if DMNSN_DEBUG
+  atomic_fetch_add(&dmnsn_allocs, 1);
+#endif
+
+  return ptr;
+}
+
+void *
+dmnsn_realloc(void *ptr, size_t size)
+{
+#if DMNSN_DEBUG
+  if (!ptr) {
+    atomic_fetch_add(&dmnsn_allocs, 1);
+  }
+#endif
+
+  ptr = realloc(ptr, size);
+  if (!ptr) {
+    dmnsn_error("Memory allocation failed.");
+  }
+  return ptr;
+}
+
+char *
+dmnsn_strdup(const char *s)
+{
+  char *copy = dmnsn_malloc(strlen(s) + 1);
+  strcpy(copy, s);
+  return copy;
+}
+
+void
+dmnsn_free(void *ptr)
+{
+#if DMNSN_DEBUG
+  if (ptr) {
+    atomic_fetch_sub(&dmnsn_allocs, 1);
+  }
+#endif
+
+  free(ptr);
+}
+
+#if DMNSN_DEBUG
+DMNSN_LATE_DESTRUCTOR static void
+dmnsn_leak_check(void)
+{
+  if (atomic_load_explicit(&dmnsn_allocs, memory_order_relaxed) > 0) {
+    dmnsn_warning("Leaking memory.");
+  }
+}
+#endif
-- 
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