From dc576013e5c17227f3ed4a31026425385dbaa251 Mon Sep 17 00:00:00 2001
From: Robin Mueller <robin.mueller.m@gmail.com>
Date: Tue, 12 Mar 2024 18:11:06 +0100
Subject: [PATCH] Add optional serde support and make MonotonicTime
 serializable

---
 CHANGELOG.md                           | 5 ++++-
 asynchronix/Cargo.toml                 | 5 +++++
 asynchronix/src/time/monotonic_time.rs | 1 +
 3 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 451dca9..1833adb 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,7 @@
+# unreleased
+
+- Add `serde` feature and serialization support for `MonotonicTime`.
+
 # 0.2.1 (2024-03-06)
 
 ### Added
@@ -12,7 +16,6 @@
 
 - Update copyright in MIT license to include contributors.
 
-
 # 0.2.0 (2023-08-15)
 
 ### Added (API-breaking changes)
diff --git a/asynchronix/Cargo.toml b/asynchronix/Cargo.toml
index f5950ac..a639579 100644
--- a/asynchronix/Cargo.toml
+++ b/asynchronix/Cargo.toml
@@ -25,6 +25,7 @@ autotests = false
 dev-hooks = []
 # Logging of performance-related statistics; development only.
 dev-logs = []
+serde = ["dep:serde"]
 
 [dependencies]
 async-event = "0.1"
@@ -39,6 +40,10 @@ slab = "0.4"
 spin_sleep = "1"
 st3 = "0.4"
 
+[dependencies.serde]
+version = "1"
+optional = true
+
 [target.'cfg(asynchronix_loom)'.dependencies]
 loom = "0.5"
 waker-fn = "1.1"
diff --git a/asynchronix/src/time/monotonic_time.rs b/asynchronix/src/time/monotonic_time.rs
index 85a5579..e27ff56 100644
--- a/asynchronix/src/time/monotonic_time.rs
+++ b/asynchronix/src/time/monotonic_time.rs
@@ -52,6 +52,7 @@ const NANOS_PER_SEC: u32 = 1_000_000_000;
 /// assert_eq!(timestamp.subsec_nanos(), 443_654_321);
 /// ```
 #[derive(Copy, Clone, Debug, PartialEq, Eq, Hash, PartialOrd, Ord)]
+#[cfg_attr(feature = "serde", derive(serde::Serialize, serde::Deserialize))]
 pub struct MonotonicTime {
     /// The number of whole seconds in the future (if positive) or in the past
     /// (if negative) of 1970-01-01 00:00:00 TAI.