Return aligned blocks on the smallest boundaries that are suitably

[yaz-moved-to-github.git] / src / nmem.c

diff --git a/src/nmem.c b/src/nmem.c
index d1c4633..947a492 100644 (file)
--- a/src/nmem.c
+++ b/src/nmem.c
@@ -2,7 +2,7 @@
  * Copyright (c) 1995-2004, Index Data.
  * See the file LICENSE for details.
  *
- * $Id: nmem.c,v 1.7 2004-12-13 14:21:55 heikki Exp $
+ * $Id: nmem.c,v 1.10 2005-01-04 21:27:54 mike Exp $
  */
 
 /**
@@ -22,6 +22,7 @@
 #include <assert.h>
 #include <string.h>
 #include <errno.h>
+#include <stddef.h>
 #include <yaz/xmalloc.h>
 #include <yaz/nmem.h>
 #include <yaz/log.h>
@@ -41,6 +42,21 @@
 
 #define NMEM_CHUNK (4*1024)
 
+struct align {
+    char x;
+    union {
+       char c;
+       short s;
+       int i;
+       long l;
+       long long ll;
+       float f;
+       double d;
+    } u;
+};
+
+#define NMEM_ALIGN (offsetof(struct align, u))
+
 static int log_level=0;
 static int log_level_initialized=0;
 
@@ -266,7 +282,7 @@ void *nmem_malloc(NMEM n, int size)
     }
     r = p->buf + p->top;
     /* align size */
-    p->top += (size + (sizeof(long) - 1)) & ~(sizeof(long) - 1);
+    p->top += (size + (NMEM_ALIGN - 1)) & ~(NMEM_ALIGN - 1);
     n->total += size;
     NMEM_LEAVE;
     return r;
@@ -472,15 +488,18 @@ void yaz_set_errno(int v)
 
 void yaz_strerror(char *buf, int max)
 {
+#ifdef WIN32
+    DWORD err;
+#endif
     char *cp;
     if (!log_level_initialized)
     {
-        log_level=yaz_log_module_level("nmem");
-        log_level_initialized=1;
+        log_level = yaz_log_module_level("nmem");
+        log_level_initialized = 1;
     }
     
 #ifdef WIN32
-    DWORD err = GetLastError();
+    err = GetLastError();
     if (err)
     {
         FormatMessage(