From fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 Mon Sep 17 00:00:00 2001 From: Joseph Hunkeler Date: Wed, 8 Jul 2015 20:46:52 -0400 Subject: Initial commit --- sys/memio/mfree.x | 27 +++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) create mode 100644 sys/memio/mfree.x (limited to 'sys/memio/mfree.x') diff --git a/sys/memio/mfree.x b/sys/memio/mfree.x new file mode 100644 index 00000000..f7c83f1d --- /dev/null +++ b/sys/memio/mfree.x @@ -0,0 +1,27 @@ +# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc. + +include + +# MFREE -- Free a previously allocated buffer. If the buffer has already been +# returned (NULL pointer), ignore the request. Once the buffer has been +# returned, the old pointer value is of not useful (and invalid), so set it +# to NULL. + +procedure mfree (ptr, dtype) + +pointer ptr +int fwa, dtype, status +int mgtfwa() +errchk mgtfwa + +begin + if (ptr != NULL) { + fwa = mgtfwa (ptr, dtype) + + call zmfree (fwa, status) + if (status == ERR) + call sys_panic (SYS_MCORRUPTED, "Memory has been corrupted") + + ptr = NULL + } +end -- cgit