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authorMartin Mares <mj@ucw.cz>1999-03-04 12:36:26 +0100
committerMartin Mares <mj@ucw.cz>1999-03-04 12:36:26 +0100
commit7a2105becdbadf20c1b4e4d2359e339c90610825 (patch)
tree524bc4947ec1938cd48e3ec6a44a9f66983f8e4b /lib
parentaa64578641c15b137172acc927d9d7af5914576b (diff)
downloadbird-7a2105becdbadf20c1b4e4d2359e339c90610825.tar
bird-7a2105becdbadf20c1b4e4d2359e339c90610825.zip
Use dmalloc instead of EFence when available (dmalloc has lot of improvements
over EFence and also hopefully smaller memory overhead, but sadly it's non-free for commercial use). If the DMALLOC_OPTIONS environment variable is not set, switch on `reasonable' checks by default. Also introduced mb_allocz() for cleared mb_alloc().
Diffstat (limited to 'lib')
-rw-r--r--lib/resource.c9
-rw-r--r--lib/resource.h18
-rw-r--r--lib/xmalloc.c6
3 files changed, 31 insertions, 2 deletions
diff --git a/lib/resource.c b/lib/resource.c
index ce0ba14..f2a0c77 100644
--- a/lib/resource.c
+++ b/lib/resource.c
@@ -8,6 +8,7 @@
#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
#include "nest/bird.h"
#include "lib/resource.h"
@@ -156,6 +157,14 @@ mb_alloc(pool *p, unsigned size)
return b->data;
}
+void *
+mb_allocz(pool *p, unsigned size)
+{
+ void *x = mb_alloc(p, size);
+ bzero(x, size);
+ return x;
+}
+
void
mb_free(void *m)
{
diff --git a/lib/resource.h b/lib/resource.h
index 6a50c33..1d83b07 100644
--- a/lib/resource.h
+++ b/lib/resource.h
@@ -43,6 +43,7 @@ extern pool root_pool;
/* Normal memory blocks */
void *mb_alloc(pool *, unsigned size);
+void *mb_allocz(pool *, unsigned size);
void mb_free(void *);
/* Memory pools with linear allocation */
@@ -62,9 +63,24 @@ slab *sl_new(pool *, unsigned size);
void *sl_alloc(slab *);
void sl_free(slab *, void *);
-/* Low-level memory allocation functions, please don't use */
+/*
+ * Low-level memory allocation functions, please don't use
+ * outside resource manager and possibly sysdep code.
+ */
+#ifdef HAVE_LIBDMALLOC
+/*
+ * The standard dmalloc macros tend to produce lots of namespace
+ * conflicts and we use only xmalloc and xfree, so we can define
+ * the stubs ourselves.
+ */
+#define DMALLOC_DISABLE
+#include <dmalloc.h>
+#define xmalloc(size) _xmalloc_leap(__FILE__, __LINE__, size)
+#define xfree(ptr) _xfree_leap(__FILE__, __LINE__, ptr)
+#else
void *xmalloc(unsigned);
#define xfree(x) free(x)
+#endif
#endif
diff --git a/lib/xmalloc.c b/lib/xmalloc.c
index c1ce7ea..2bec260 100644
--- a/lib/xmalloc.c
+++ b/lib/xmalloc.c
@@ -1,7 +1,7 @@
/*
* BIRD Library -- malloc() With Checking
*
- * (c) 1998 Martin Mares <mj@ucw.cz>
+ * (c) 1998--1999 Martin Mares <mj@ucw.cz>
*
* Can be freely distributed and used under the terms of the GNU GPL.
*/
@@ -11,6 +11,8 @@
#include "nest/bird.h"
#include "lib/resource.h"
+#ifndef HAVE_LIBDMALLOC
+
void *
xmalloc(unsigned size)
{
@@ -19,3 +21,5 @@ xmalloc(unsigned size)
return p;
die("Unable to allocate %d bytes of memory", size);
}
+
+#endif