test8.data

操作系统课内实验部分

// test8.data:  Checks that file blocks are being correctly returned to the
// free list.  It will create a large number of small files.   Delete
// alternate files.  And continue to create new, and larger, files until
// there is one large file.  This test also makes sure that at a 
// basic level, inodes are being freed up correctly.

// 1. Format the disk with 19 blocks total: (1 superblock, 2 inode blocks,
//    and 16 data blocks).
formatDisk 19 2

// 2. Create 16 1-block files to fill up the file table and use all blocks
file1 = create
inum1 = inumber file1
write file1 Mmmm_ 512

file2 = create
inum2 = inumber file2
write file2 Mmmm_ 512

file3 = create
inum3 = inumber file3
write file3 Mmmm_ 512

file4 = create
inum4 = inumber file4
write file4 Mmmm_ 512

file5 = create
inum5 = inumber file5
write file5 Mmmm_ 512

file6 = create
inum6 = inumber file6
write file6 Mmmm_ 512

file7 = create
inum7 = inumber file7
write file7 Mmmm_ 512

file8 = create
inum8 = inumber file8
write file8 Mmmm_ 512

file9 = create
inum9 = inumber file9
write file9 Mmmm_ 512

file10 = create
inum10 = inumber file10
write file10 Mmmm_ 512

file11 = create
inum11 = inumber file11
write file11 Mmmm_ 512

file12 = create
inum12 = inumber file12
write file12 Mmmm_ 512

file13 = create
inum13 = inumber file13
write file13 Mmmm_ 512

file14 = create
inum14 = inumber file14
write file14 Mmmm_ 512

file15 = create
inum15 = inumber file15
write file15 Mmmm_ 512

file16 = create
inum16 = inumber file16
write file16 Mmmm_ 512

// 3. Now remove 8 files from the file table
close file1
delete inum1
close file3
delete inum3
close file5
delete inum5
close file7
delete inum7
close file9
delete inum9
close file11
delete inum11
close file13
delete inum13
close file15
delete inum15

// 4. Add 4 2-block files
file1 = create
inum1 = inumber file1
write file1 Mmmm_ 1024

file3 = create
inum3 = inumber file3
write file3 Mmmm_ 1024

file5 = create
inum5 = inumber file5
write file5 Mmmm_ 1024

file7 = create
inum7 = inumber file7
write file7 Mmmm_ 1024

// 5. Remove all 8 smaller files 
close file2
delete inum2
close file4
delete inum4
close file6
delete inum6
close file8
delete inum8
close file10
delete inum10
close file12
delete inum12
close file14
delete inum14
close file16
delete inum16

// 6. Add one 8-block file
file2 = create
inum2 = inumber file2
write file2 Mmmm_ 4096

// 7. Remove all current files
close file1
delete inum1
close file2
delete inum2
close file3
delete inum3
close file5
delete inum5
close file7
delete inum7

// 8. Add one 15-block file
file1 = create
inum1 = inumber file1
write file1 Mmmm_ 7680

// 9. Delete that file
close file1
delete inum1

// 10. Add one more 15-block file
file2 = create
inum2 = inumber file2
write file2 Mmmm_ 7680

// 11. Shutdown the system and quit
shutdown
quit