/*
- * Copyright (C) 1994, Index Data I/S
- * All rights reserved.
+ * Copyright (c) 1995, Index Data
+ * See the file LICENSE for details.
* Sebastian Hammer, Adam Dickmeiss
*
* $Log: odr_mem.c,v $
- * Revision 1.3 1995-04-18 08:15:21 quinn
+ * Revision 1.8 1995-09-29 17:12:24 quinn
+ * Smallish
+ *
+ * Revision 1.7 1995/09/27 15:02:59 quinn
+ * Modified function heads & prototypes.
+ *
+ * Revision 1.6 1995/08/21 09:10:41 quinn
+ * Smallish fixes to suppport new formats.
+ *
+ * Revision 1.5 1995/05/16 08:50:55 quinn
+ * License, documentation, and memory fixes
+ *
+ * Revision 1.4 1995/05/15 11:56:09 quinn
+ * More work on memory management.
+ *
+ * Revision 1.3 1995/04/18 08:15:21 quinn
* Added dynamic memory allocation on encoding (whew). Code is now somewhat
* neater. We'll make the same change for decoding one day.
*
#include <stdlib.h>
#include <odr.h>
+#include <dmalloc.h>
/* ------------------------ NIBBLE MEMORY ---------------------- */
char *buf;
int size;
int top;
+ int total;
struct odr_memblock *next;
} odr_memblock;
-static odr_memblock *freelist = 0;
+static odr_memblock *freelist = 0; /* global freelist */
static void free_block(odr_memblock *p)
{
freelist = p;
}
+/*
+ * acquire a block with a minimum of size free bytes.
+ */
static odr_memblock *get_block(int size)
{
odr_memblock *r, *l;
abort();
}
r->top = 0;
+ r->total = 0;
return r;
}
-void odr_release_mem(odr_memblock *p)
+/*
+ * Return p to the global freelist.
+ */
+void odr_release_mem(ODR_MEM p)
{
odr_memblock *t;
}
}
+/*
+ * Extract the memory control block from o.
+ */
+ODR_MEM odr_extract_mem(ODR o)
+{
+ ODR_MEM r = o->mem;
+
+ o->mem = 0;
+ return r;
+}
+
void *odr_malloc(ODR o, int size)
{
struct odr_memblock *p = o->mem;
if (!p || p->size - p->top < size)
if (!(p = get_block(size)))
- {
- o->error = OMEMORY;
- return 0;
- }
+ abort();
else
{
+ if (o->mem)
+ p->total = o->mem->total;
p->next = o->mem;
o->mem = p;
}
r = p->buf + p->top;
+ /* align size */
p->top += (size + (sizeof(long) - 1)) & ~(sizeof(long) - 1);
+ p->total += size;
return r;
}
+int odr_total(ODR o)
+{
+ return o->mem ? o->mem->total : 0;
+}
+
/* ---------- memory management for data encoding ----------*/