Changeset 3467821 in mainline for uspace/app/mkexfat/mkexfat.c

Timestamp:

2012-02-24T22:59:51Z (12 years ago)

Author:

Maurizio Lombardi <m.lombardi85@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

b200230

Parents:

552efe3

Message:

mkexfat: performance improvement, reset the buffer's content only if necessary.

File:

• uspace/app/mkexfat/mkexfat.c (modified) (4 diffs)

uspace/app/mkexfat/mkexfat.c

@@ -46 +46 @@
 #include <sys/types.h>
 #include <sys/typefmt.h>
+#include <bool.h>
 #include "exfat.h"
 #include "upcase.h"
@@ -436 +437 @@
         unsigned long allocated_cls;
         int rc = EOK;
+        bool need_reset = true;
 
         /* Bitmap size in sectors */
@@ -447 +449 @@
 
         for (sec = 0; sec < bss; ++sec) {
-                memset(bitmap, 0, cfg->sector_size);
+                if (need_reset) {
+                        need_reset = false;
+                        memset(bitmap, 0, cfg->sector_size);
+                }
                 if (allocated_cls > 0) {
                         for (i = 0; i < allocated_cls; ++i) {
@@ -459 +464 @@
 
                         allocated_cls -= i;
+                        need_reset = true;
                 }