update rand dependency (open-telemetry#2681)

Co-authored-by: Cijo Thomas <[email protected]>
Co-authored-by: Lalit Kumar Bhasin <[email protected]>

Author: 3 people

metrics_counter.rs

@@ -36,7 +36,7 @@ lazy_static! {
 
 thread_local! {
     /// Store random number generator for each thread
-    static CURRENT_RNG: RefCell<rngs::SmallRng> = RefCell::new(rngs::SmallRng::from_entropy());
+    static CURRENT_RNG: RefCell<rngs::SmallRng> = RefCell::new(rngs::SmallRng::from_os_rng());
 }
 
 fn main() {
@@ -48,9 +48,9 @@ fn test_counter() {
     let rands = CURRENT_RNG.with(|rng| {
         let mut rng = rng.borrow_mut();
         [
-            rng.gen_range(0..len),
-            rng.gen_range(0..len),
-            rng.gen_range(0..len),
+            rng.random_range(0..len),
+            rng.random_range(0..len),
+            rng.random_range(0..len),
         ]
     });
     let index_first_attribute = rands[0];

metrics_gauge.rs

@@ -33,7 +33,7 @@ lazy_static! {
 
 thread_local! {
     /// Store random number generator for each thread
-    static CURRENT_RNG: RefCell<rngs::SmallRng> = RefCell::new(rngs::SmallRng::from_entropy());
+    static CURRENT_RNG: RefCell<rngs::SmallRng> = RefCell::new(rngs::SmallRng::from_os_rng());
 }
 
 fn main() {
@@ -45,9 +45,9 @@ fn test_gauge() {
     let rands = CURRENT_RNG.with(|rng| {
         let mut rng = rng.borrow_mut();
         [
-            rng.gen_range(0..len),
-            rng.gen_range(0..len),
-            rng.gen_range(0..len),
+            rng.random_range(0..len),
+            rng.random_range(0..len),
+            rng.random_range(0..len),
         ]
     });
     let index_first_attribute = rands[0];

metrics_histogram.rs

@@ -36,7 +36,7 @@ lazy_static! {
 
 thread_local! {
     /// Store random number generator for each thread
-    static CURRENT_RNG: RefCell<rngs::SmallRng> = RefCell::new(rngs::SmallRng::from_entropy());
+    static CURRENT_RNG: RefCell<rngs::SmallRng> = RefCell::new(rngs::SmallRng::from_os_rng());
 
     static PROVIDER_PER_THREAD: SdkMeterProvider = SdkMeterProvider::builder()
         .with_reader(ManualReader::builder().build())
@@ -65,9 +65,9 @@ fn test_histogram(histogram: &Histogram<u64>) {
     let rands = CURRENT_RNG.with(|rng| {
         let mut rng = rng.borrow_mut();
         [
-            rng.gen_range(0..len),
-            rng.gen_range(0..len),
-            rng.gen_range(0..len),
+            rng.random_range(0..len),
+            rng.random_range(0..len),
+            rng.random_range(0..len),
         ]
     });
     let index_first_attribute = rands[0];

metrics_overflow.rs

@@ -29,7 +29,7 @@ lazy_static! {
 
 thread_local! {
     /// Store random number generator for each thread
-    static CURRENT_RNG: RefCell<rngs::SmallRng> = RefCell::new(rngs::SmallRng::from_entropy());
+    static CURRENT_RNG: RefCell<rngs::SmallRng> = RefCell::new(rngs::SmallRng::from_os_rng());
 }
 
 fn main() {
@@ -41,6 +41,6 @@ fn test_counter() {
     // memory usage indefinitely even when user code misbehaves by producing
     // unbounded metric points (unique time series).
     // It also checks that SDK's internal logging is also done in a bounded way.
-    let rand = CURRENT_RNG.with(|rng| rng.borrow_mut().gen_range(0..100000000));
+    let rand = CURRENT_RNG.with(|rng| rng.borrow_mut().random_range(0..100000000));
     COUNTER.add(1, &[KeyValue::new("A", rand)]);
 }

random.rs

@@ -17,7 +17,7 @@ use std::cell::RefCell;
 
 thread_local! {
     /// Store random number generator for each thread
-    static CURRENT_RNG: RefCell<rngs::SmallRng> = RefCell::new(rngs::SmallRng::from_entropy());
+    static CURRENT_RNG: RefCell<rngs::SmallRng> = RefCell::new(rngs::SmallRng::from_os_rng());
 }
 
 fn main() {
@@ -28,9 +28,9 @@ fn test_random_generation() {
     let _i1 = CURRENT_RNG.with(|rng| {
         let mut rng = rng.borrow_mut();
         [
-            rng.gen_range(0..10),
-            rng.gen_range(0..10),
-            rng.gen_range(0..10),
+            rng.random_range(0..10),
+            rng.random_range(0..10),
+            rng.random_range(0..10),
         ]
     });
 }