1 files changed, 65 insertions, 0 deletions
diff --git a/mysys/my_realloc.c b/mysys/my_realloc.c
new file mode 100644
index 00000000000..c9d8edd6ddf
--- /dev/null
+++ b/mysys/my_realloc.c
@@ -0,0 +1,65 @@
+/* Copyright (C) 2000 MySQL AB & MySQL Finland AB & TCX DataKonsult AB
+   
+   This library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Library General Public
+   License as published by the Free Software Foundation; either
+   version 2 of the License, or (at your option) any later version.
+   
+   This 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
+   Library General Public License for more details.
+   
+   You should have received a copy of the GNU Library General Public
+   License along with this library; if not, write to the Free
+   Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+   MA 02111-1307, USA */
+
+#ifdef SAFEMALLOC			/* We don't need SAFEMALLOC here */
+#undef SAFEMALLOC
+#endif
+
+#include "mysys_priv.h"
+#include "mysys_err.h"
+
+	/* My memory re allocator */
+
+gptr my_realloc(gptr oldpoint, uint Size, myf MyFlags)
+{
+  gptr point;
+  DBUG_ENTER("my_realloc");
+  DBUG_PRINT("my",("ptr: %lx  Size: %u  MyFlags: %d",oldpoint, Size, MyFlags));
+
+  if (!oldpoint && (MyFlags & MY_ALLOW_ZERO_PTR))
+    DBUG_RETURN(my_malloc(Size,MyFlags));
+#ifdef USE_HALLOC
+  if (!(point = malloc(Size)))
+  {
+    if (MyFlags & MY_FREE_ON_ERROR)
+      my_free(oldpoint,MyFlags);
+    if (MyFlags & MY_HOLD_ON_ERROR)
+      DBUG_RETURN(oldpoint);
+    my_errno=errno;
+    if (MyFlags & MY_FAE+MY_WME)
+      my_error(EE_OUTOFMEMORY, MYF(ME_BELL+ME_WAITTANG),Size);
+  }
+  else
+  {
+    memcpy(point,oldpoint,Size);
+    free(oldpoint);
+  }
+#else
+  if ((point = realloc(oldpoint,Size)) == NULL)
+  {
+    if (MyFlags & MY_FREE_ON_ERROR)
+      my_free(oldpoint,MyFLAGS);
+    if (MyFlags & MY_HOLD_ON_ERROR)
+      DBUG_RETURN(oldpoint);
+    my_errno=errno;
+    if (MyFlags & (MY_FAE+MY_WME))
+      my_error(EE_OUTOFMEMORY, MYF(ME_BELL+ME_WAITTANG), Size);
+  }
+#endif
+  DBUG_PRINT("exit",("ptr: %lx",point));
+  DBUG_RETURN(point);
+} /* my_realloc */