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-rw-r--r--vendor/github.com/aws/aws-sdk-go/internal/sdkrand/locked_source.go29
1 files changed, 29 insertions, 0 deletions
diff --git a/vendor/github.com/aws/aws-sdk-go/internal/sdkrand/locked_source.go b/vendor/github.com/aws/aws-sdk-go/internal/sdkrand/locked_source.go
new file mode 100644
index 0000000..0c9802d
--- /dev/null
+++ b/vendor/github.com/aws/aws-sdk-go/internal/sdkrand/locked_source.go
@@ -0,0 +1,29 @@
+package sdkrand
+
+import (
+ "math/rand"
+ "sync"
+ "time"
+)
+
+// lockedSource is a thread-safe implementation of rand.Source
+type lockedSource struct {
+ lk sync.Mutex
+ src rand.Source
+}
+
+func (r *lockedSource) Int63() (n int64) {
+ r.lk.Lock()
+ n = r.src.Int63()
+ r.lk.Unlock()
+ return
+}
+
+func (r *lockedSource) Seed(seed int64) {
+ r.lk.Lock()
+ r.src.Seed(seed)
+ r.lk.Unlock()
+}
+
+// SeededRand is a new RNG using a thread safe implementation of rand.Source
+var SeededRand = rand.New(&lockedSource{src: rand.NewSource(time.Now().UnixNano())})