kunt

commit e1c4909c9cdee460a92d6c4b98b5fc2ea293f121
parent 103e5d65ba25359b8a4b5018be16529a5ea3685e
Author: sin <sin@2f30.org>
Date:   Fri, 26 Apr 2013 16:52:55 +0100

fsdb: Add some comments, ensure lock is taken in Len()

Diffstat:
M
src/fsdb/fsdb.go
 | 
4
+++-

1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/src/fsdb/fsdb.go b/src/fsdb/fsdb.go
@@ -122,6 +122,7 @@ func (d *Fsdb) Load() error {
 }
 
 // Check if `buf' already exists in the DB
+// Expects `d.lock' to be held by caller
 func (d *Fsdb) dup(buf []byte) bool {
 	for _, v := range d.dbMap {
 		if string(v.data) == string(buf) {
@@ -172,7 +173,6 @@ func (d *Fsdb) Get(key int) ([]byte, error) {
 func (d *Fsdb) Rand() ([]byte, int) {
 	d.lock.Lock()
 	defer d.lock.Unlock()
-
 	idx := rand.Intn(len(d.dbMap))
 	i := 0
 	for k, _ := range d.dbMap {
@@ -195,5 +195,7 @@ func (d *Fsdb) Empty() bool {
 }
 
 func (d *Fsdb) Len() int {
+	d.lock.Lock()
+	defer d.lock.Unlock()
 	return len(d.dbMap)
 }