Contributed by Fred Fish at Cygnus Support. fnf@cygnus.com
-This program is free software; you can redistribute it and/or modify
-it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2 of the License, or
-(at your option) any later version.
+This file is part of the GNU C Library.
-This program 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 General Public License for more details.
+The GNU C 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.
-You should have received a copy of the GNU General Public License
-along with this program; if not, write to the Free Software
-Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
+The GNU C 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 the GNU C Library; see the file COPYING.LIB. If
+not, write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
-#include <fcntl.h>
-#include "mmalloc.h"
+#include <sys/types.h>
+#include "mmprivate.h"
/* Terminate access to a mmalloc managed region by unmapping all memory pages
associated with the region, and closing the file descriptor if it is one
PTR
mmalloc_detach (md)
- void *md;
+ PTR md;
{
struct mdesc mtemp;
/* Now unmap all the pages associated with this region by asking for a
negative increment equal to the current size of the region. */
- if ((mtemp.morecore (&mtemp, mtemp.base - mtemp.top)) == NULL)
+ if ((mtemp.morecore (&mtemp, mtemp.base - mtemp.breakval)) == NULL)
{
- /* Update the original malloc descriptor with any changes */
+ /* Deallocating failed. Update the original malloc descriptor
+ with any changes */
*(struct mdesc *) md = mtemp;
}
else
{
if (mtemp.flags & MMALLOC_DEVZERO)
{
- (void) close (mtemp.fd);
+ close (mtemp.fd);
}
md = NULL;
}
return (md);
}
-
-
-