X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/359df77829d85c6a415220fb4f21d5331323c79f..c97fbcf9622edc35b594bf574f553f7f13c21164:/lmem.h

diff --git a/lmem.h b/lmem.h
index 8546dcf..65a31a8 100644
--- a/lmem.h
+++ b/lmem.h
@@ -1,13 +1,13 @@
 /* -*-c-*-
  *
- * $Id: lmem.h,v 1.1 1999/12/22 16:02:52 mdw Exp $
+ * $Id: lmem.h,v 1.5 2004/04/08 01:36:15 mdw Exp $
  *
  * Locked memory allocation
  *
  * (c) 1999 Straylight/Edgeware
  */
 
-/*----- Licensing notice --------------------------------------------------* 
+/*----- Licensing notice --------------------------------------------------*
  *
  * This file is part of Catacomb.
  *
@@ -15,26 +15,18 @@
  * 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.
- * 
+ *
  * Catacomb 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 Catacomb; if not, write to the Free
  * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
  * MA 02111-1307, USA.
  */
 
-/*----- Revision history --------------------------------------------------* 
- *
- * $Log: lmem.h,v $
- * Revision 1.1  1999/12/22 16:02:52  mdw
- * Interface to allocating `locked' memory (which isn't paged out).
- *
- */
-
 #ifndef CATACOMB_LMEM_H
 #define CATACOMB_LMEM_H
 
@@ -46,6 +38,7 @@
 
 #include <stddef.h>
 
+#include <mLib/arena.h>
 #include <mLib/dstr.h>
 
 /*----- Data structures ---------------------------------------------------*/
@@ -65,13 +58,13 @@ typedef struct l_node {
   unsigned f;				/* Various flags */
 } l_node;
 
-enum {
-  LF_ALLOC = 1
-};
+#define LF_ALLOC 1u
 
 /* --- Locked memory buffer state --- */
 
 typedef struct lmem {
+  arena a;				/* Arena header block */
+  unsigned f;				/* Various flags */
   char *p;				/* Pointer to locked buffer */
   l_node *l;				/* Pointer to block list */
   size_t sz;				/* Size of locked buffer */
@@ -79,6 +72,8 @@ typedef struct lmem {
   int err; char *emsg;			/* Error indicators */
 } lmem;
 
+#define LF_LOCKED 1u
+
 /*----- Functions provided ------------------------------------------------*/
 
 /* --- @l_init@ --- *
@@ -135,6 +130,17 @@ extern void l_free(lmem */*lm*/, void */*p*/);
 
 extern void l_purge(lmem */*lm*/);
 
+/* --- @l_destroy@ --- *
+ *
+ * Arguments:	@lmem *lm@ = pointer to locked memory descriptor
+ *
+ * Returns:	---
+ *
+ * Use:		Disposes of a locked memory arena permanently.
+ */
+
+extern void l_destroy(lmem */*lm*/);
+
 /* --- @l_report@ --- *
  *
  * Arguments:	@lmem *lm@ = pointer to locked memory descriptor