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-rw-r--r--mysys/my_malloc.c84
1 files changed, 84 insertions, 0 deletions
diff --git a/mysys/my_malloc.c b/mysys/my_malloc.c
new file mode 100644
index 00000000000..6cae6fe3a4d
--- /dev/null
+++ b/mysys/my_malloc.c
@@ -0,0 +1,84 @@
+/* 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"
+#include <m_string.h>
+
+ /* My memory allocator */
+
+gptr my_malloc(unsigned int Size, myf MyFlags)
+{
+ gptr point;
+ DBUG_ENTER("my_malloc");
+ DBUG_PRINT("my",("Size: %u MyFlags: %d",Size, MyFlags));
+
+ if (!Size)
+ Size=1; /* Safety */
+ if ((point = malloc(Size)) == NULL)
+ {
+ my_errno=errno;
+ if (MyFlags & MY_FAE)
+ error_handler_hook=fatal_error_handler_hook;
+ if (MyFlags & (MY_FAE+MY_WME))
+ my_error(EE_OUTOFMEMORY, MYF(ME_BELL+ME_WAITTANG),Size);
+ if (MyFlags & MY_FAE)
+ exit(1);
+ }
+ else if (MyFlags & MY_ZEROFILL)
+ bzero(point,Size);
+ DBUG_PRINT("exit",("ptr: %lx",point));
+ DBUG_RETURN(point);
+} /* my_malloc */
+
+
+ /* Free memory allocated with my_malloc */
+ /*ARGSUSED*/
+
+void my_no_flags_free(gptr ptr)
+{
+ DBUG_ENTER("my_free");
+ DBUG_PRINT("my",("ptr: %lx",ptr));
+ if (ptr)
+ free(ptr);
+ DBUG_VOID_RETURN;
+} /* my_free */
+
+
+ /* malloc and copy */
+
+gptr my_memdup(const byte *from, uint length, myf MyFlags)
+{
+ gptr ptr;
+ if ((ptr=my_malloc(length,MyFlags)) != 0)
+ memcpy((byte*) ptr, (byte*) from,(size_t) length);
+ return(ptr);
+}
+
+
+my_string my_strdup(const char *from, myf MyFlags)
+{
+ gptr ptr;
+ uint length=(uint) strlen(from)+1;
+ if ((ptr=my_malloc(length,MyFlags)) != 0)
+ memcpy((byte*) ptr, (byte*) from,(size_t) length);
+ return((my_string) ptr);
+}