From 07c05917e0baab4f16ac7294dae66adc0e5926cf Mon Sep 17 00:00:00 2001
From: Vincent Coubard <vincent.coubard@arm.com>
Date: Wed, 21 Nov 2018 10:22:21 +0000
Subject: [PATCH] BLE: Add Duration::forever() function.

---
 features/FEATURE_BLE/ble/common/Duration.h | 23 +++++++++++++++++++++-
 1 file changed, 22 insertions(+), 1 deletion(-)

diff --git a/features/FEATURE_BLE/ble/common/Duration.h b/features/FEATURE_BLE/ble/common/Duration.h
index f37a03025e..a9082c894c 100644
--- a/features/FEATURE_BLE/ble/common/Duration.h
+++ b/features/FEATURE_BLE/ble/common/Duration.h
@@ -49,8 +49,18 @@ struct DefaultRange<uint32_t> {
     typedef Range<0, 0xFFFFFFFF> type;
 };
 
+template<uint32_t V>
+struct Forever {
+    static const uint32_t VALUE = V;
+};
 
-template<typename Rep, uint32_t TB, typename Range = typename DefaultRange<Rep>::type >
+
+template<
+    typename Rep,
+    uint32_t TB,
+    typename Range = typename DefaultRange<Rep>::type,
+    typename Forever = void*
+>
 struct Duration {
     Duration() : duration() { }
 
@@ -93,6 +103,11 @@ struct Duration {
         return &duration;
     }
 
+    static Duration forever()
+    {
+        return Duration(Forever::VALUE);
+    }
+
 private:
     static Rep clamp(Rep in) {
         if (in < MIN) {
@@ -211,6 +226,12 @@ bool operator>(Duration<Rep, Us, Range> lhs, Duration<Rep, Us, Range> rhs) {
     return rhs < lhs;
 }
 
+/* ---------------------- Static variable initialization -------------------- */
+
+
+template<uint32_t V>
+const uint32_t Forever<V>::VALUE;
+
 }
 
 #endif //BLE_COMMON_DURATION_H_