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Rewrite filesystem to support Unix "delete" semantics.
[pintos-anon]
/
src
/
filesys
/
fsutil.c
diff --git
a/src/filesys/fsutil.c
b/src/filesys/fsutil.c
index a51fac670ece11a6b0026e6e67ba0b1684aff539..3876ee9775bb88fc7a8181a71d4daf7c10be9336 100644
(file)
--- a/
src/filesys/fsutil.c
+++ b/
src/filesys/fsutil.c
@@
-32,7
+32,7
@@
static void
copy (const char *filename, off_t size)
{
struct disk *src;
copy (const char *filename, off_t size)
{
struct disk *src;
- struct file dst;
+ struct file
*
dst;
disk_sector_t sector;
void *buffer;
disk_sector_t sector;
void *buffer;
@@
-47,7
+47,8
@@
copy (const char *filename, off_t size)
/* Create destination file. */
if (!filesys_create (filename, size))
PANIC ("%s: create failed", filename);
/* Create destination file. */
if (!filesys_create (filename, size))
PANIC ("%s: create failed", filename);
- if (!filesys_open (filename, &dst))
+ dst = filesys_open (filename);
+ if (dst == NULL)
PANIC ("%s: open failed", filename);
/* Do copy. */
PANIC ("%s: open failed", filename);
/* Do copy. */
@@
-57,14
+58,14
@@
copy (const char *filename, off_t size)
{
int chunk_size = size > DISK_SECTOR_SIZE ? DISK_SECTOR_SIZE : size;
disk_read (src, sector++, buffer);
{
int chunk_size = size > DISK_SECTOR_SIZE ? DISK_SECTOR_SIZE : size;
disk_read (src, sector++, buffer);
- if (file_write (
&
dst, buffer, chunk_size) != chunk_size)
+ if (file_write (dst, buffer, chunk_size) != chunk_size)
PANIC ("%s: write failed with %lld bytes unwritten",
filename, (unsigned long long) size);
size -= chunk_size;
}
palloc_free (buffer);
PANIC ("%s: write failed with %lld bytes unwritten",
filename, (unsigned long long) size);
size -= chunk_size;
}
palloc_free (buffer);
- file_close (
&
dst);
+ file_close (dst);
}
/* Executes the filesystem operations described by the variables
}
/* Executes the filesystem operations described by the variables
@@
-107,20
+108,21
@@
fsutil_run (void)
void
fsutil_print (const char *filename)
{
void
fsutil_print (const char *filename)
{
- struct file file;
+ struct file
*
file;
char *buffer;
char *buffer;
- if (!filesys_open (filename, &file))
+ file = filesys_open (filename);
+ if (file == NULL)
PANIC ("%s: open failed", filename);
buffer = palloc_get (PAL_ASSERT);
for (;;)
{
PANIC ("%s: open failed", filename);
buffer = palloc_get (PAL_ASSERT);
for (;;)
{
- off_t n = file_read (
&
file, buffer, PGSIZE);
+ off_t n = file_read (file, buffer, PGSIZE);
if (n == 0)
break;
hex_dump (buffer, n, true);
}
palloc_free (buffer);
if (n == 0)
break;
hex_dump (buffer, n, true);
}
palloc_free (buffer);
- file_close (
&
file);
+ file_close (file);
}
}