Changeset 6c01702 in mainline for uspace/srv/bd/file_bd/file_bd.c

Timestamp:

2010-01-10T13:58:07Z (14 years ago)

Author:

Jiri Svoboda <jiri@…>

Branches:

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

Children:

383ddd6, ccce242

Parents:

c77a64f

Message:

Flush stream when writing blocks in file_bd. Also check fseek() return values.

File:

• uspace/srv/bd/file_bd/file_bd.c (modified) (3 diffs)

uspace/srv/bd/file_bd/file_bd.c

@@ -205 +205 @@
 {
         size_t n_rd;
+        int rc;
 
         fibril_mutex_lock(&dev_lock);
 
         clearerr(img);
-        fseek(img, ba * block_size, SEEK_SET);
+        rc = fseek(img, ba * block_size, SEEK_SET);
+        if (rc < 0) {
+                fibril_mutex_unlock(&dev_lock);
+                return EIO;
+        }
+
         n_rd = fread(buf, block_size, cnt, img);
 
@@ -229 +235 @@
 {
         size_t n_wr;
+        int rc;
 
         fibril_mutex_lock(&dev_lock);
 
         clearerr(img);
-        fseek(img, ba * block_size, SEEK_SET);
+        rc = fseek(img, ba * block_size, SEEK_SET);
+        if (rc < 0) {
+                fibril_mutex_unlock(&dev_lock);
+                return EIO;
+        }
+
         n_wr = fwrite(buf, block_size, cnt, img);
 
@@ -239 +251 @@
                 fibril_mutex_unlock(&dev_lock);
                 return EIO;     /* Write error */
+        }
+
+        if (fflush(img) != 0) {
+                fibril_mutex_unlock(&dev_lock);
+                return EIO;
         }