/* -*-c-*-
*
- * $Id: lmem.h,v 1.1 1999/12/22 16:02:52 mdw Exp $
+ * $Id: lmem.h,v 1.4 2000/12/06 20:33:27 mdw Exp $
*
* Locked memory allocation
*
/*----- Revision history --------------------------------------------------*
*
* $Log: lmem.h,v $
+ * Revision 1.4 2000/12/06 20:33:27 mdw
+ * Make flags be macros rather than enumerations, to ensure that they're
+ * unsigned.
+ *
+ * Revision 1.3 2000/07/29 21:58:15 mdw
+ * (l_destroy): New function for destroying locked memory blocks.
+ *
+ * Revision 1.2 2000/06/17 11:29:38 mdw
+ * Add arena support.
+ *
* Revision 1.1 1999/12/22 16:02:52 mdw
* Interface to allocating `locked' memory (which isn't paged out).
*
#include <stddef.h>
+#include <mLib/arena.h>
#include <mLib/dstr.h>
/*----- Data structures ---------------------------------------------------*/
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 */
int err; char *emsg; /* Error indicators */
} lmem;
+#define LF_LOCKED 1u
+
/*----- Functions provided ------------------------------------------------*/
/* --- @l_init@ --- *
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