Add the files

1 files changed, 38 insertions, 0 deletions

diff --git a/src/common/mallocHelper.h b/src/common/mallocHelper.h
new file mode 100644
index 0000000..5b24df4
--- /dev/null
+++ b/src/common/mallocHelper.h
@@ -0,0 +1,38 @@
+#pragma once
+
+#include <stdlib.h>
+#include <assert.h>
+
+#if FF_HAVE_MALLOC_USABLE_SIZE || FF_HAVE_MSVC_MSIZE
+    #if __has_include(<malloc.h>)
+        #include <malloc.h>
+    #else
+        #include <malloc_np.h> // For DragonFly BSD
+    #endif
+#elif FF_HAVE_MALLOC_SIZE
+    #include <malloc/malloc.h>
+#endif
+
+static inline void ffWrapFree(const void* pPtr) {
+    assert(pPtr);
+    if (*(void**) pPtr) {
+        free(*(void**) pPtr);
+    }
+}
+
+#define FF_AUTO_FREE FF_A_CLEANUP(ffWrapFree)
+
+// ptr MUST be a malloc'ed pointer
+static inline size_t ffMallocUsableSize(const void* ptr) {
+    assert(ptr);
+#if FF_HAVE_MALLOC_USABLE_SIZE
+    return malloc_usable_size((void*) ptr);
+#elif FF_HAVE_MALLOC_SIZE
+    return malloc_size((void*) ptr);
+#elif FF_HAVE_MSVC_MSIZE
+    return _msize((void*) ptr);
+#else
+    (void) ptr;
+    return 0; // Not supported
+#endif
+}