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Implemented checkInvariants.

geesefs-0-30-9
Aaron Jacobs 2015-03-17 13:25:27 +11:00
parent c6fab5488b
commit a9ebf7fe45
1 changed files with 10 additions and 8 deletions
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18
samples/cachingfs/caching_fs.go
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@ -15,6 +15,7 @@
package cachingfs
import (
"fmt"
"time"
"github.com/jacobsa/fuse"
@ -96,13 +97,8 @@ type cachingFS struct {
// The current ID of the lowest numbered non-root inode.
//
// INVARIANT: FooID() > fuse.RootInodeID
// INVARIANT: DirID() > fuse.RootInodeID
// INVARIANT: BarID() > fuse.RootInodeID
//
// INVARIANT: FooID() % numInodes == fooOffset
// INVARIANT: DirID() % numInodes == dirOffset
// INVARIANT: BarID() % numInodes == barOffset
// INVARIANT: baseID > fuse.RootInodeID
// INVARIANT: baseID % numInodes == 0
//
// GUARDED_BY(mu)
baseID fuse.InodeID
@ -111,7 +107,13 @@ type cachingFS struct {
mtime time.Time
}
func (fs *cachingFS) checkInvariants()
func (fs *cachingFS) checkInvariants() {
// INVARIANT: baseID > fuse.RootInodeID
// INVARIANT: baseID % numInodes == 0
if fs.baseID <= fuse.RootInodeID || fs.baseID%numInodes != 0 {
panic(fmt.Sprintf("Bad baseID: %v", fs.baseID))
}
}
// LOCKS_EXCLUDED(fs.mu)
func (fs *cachingFS) FooID() fuse.InodeID {