From 075b93ecd65cb8eee486e91b5db83620104b0d3c Mon Sep 17 00:00:00 2001
From: InsanusMokrassar <ovsyannikov.alexey95@gmail.com>
Date: Thu, 26 Oct 2023 12:28:24 +0600
Subject: [PATCH] SmartRWLocker now will wait first unlock of write mutex for
 acquiring read

---
 CHANGELOG.md                                                   | 3 +++
 .../kotlin/dev/inmo/micro_utils/coroutines/SmartRWLocker.kt    | 1 +
 2 files changed, 4 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 533c805b582..0ee4ce87fea 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,9 @@
 
 ## 0.20.11
 
+* `Coroutines`:
+  * `SmartRWLocker` now will wait first unlock of write mutex for acquiring read
+
 ## 0.20.10
 
 * `Versions`:
diff --git a/coroutines/src/commonMain/kotlin/dev/inmo/micro_utils/coroutines/SmartRWLocker.kt b/coroutines/src/commonMain/kotlin/dev/inmo/micro_utils/coroutines/SmartRWLocker.kt
index 7aaf845cb81..65eb1732bb6 100644
--- a/coroutines/src/commonMain/kotlin/dev/inmo/micro_utils/coroutines/SmartRWLocker.kt
+++ b/coroutines/src/commonMain/kotlin/dev/inmo/micro_utils/coroutines/SmartRWLocker.kt
@@ -23,6 +23,7 @@ class SmartRWLocker(private val readPermits: Int = Int.MAX_VALUE, writeIsLocked:
      * Do lock in [readSemaphore] inside of [writeMutex] locking
      */
     suspend fun acquireRead() {
+        _writeMutex.waitUnlock()
         _readSemaphore.acquire()
     }