From 9adf65a3f97cfaf5ba6d103d0b811fd6424c398e Mon Sep 17 00:00:00 2001
From: oehhar <harald.oehlmann@elmicron.de>
Date: Fri, 22 Aug 2025 17:09:07 +0000
Subject: [893f8cc5] tip509 nested mutex patch by Christian (thanks!)

---
 unix/tclUnixThrd.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/unix/tclUnixThrd.c b/unix/tclUnixThrd.c
index ae22e46..04e1747 100644
--- a/unix/tclUnixThrd.c
+++ b/unix/tclUnixThrd.c
@@ -147,7 +147,13 @@ PCondWait(
     pthread_cond_t *pcondPtr,
     PMutex *pmutexPtr)
 {
+    int counter = pmutexPtr->counter;
+
+    pmutexPtr->thread = 0;
+    pmutexPtr->counter = 0; 
     pthread_cond_wait(pcondPtr, &pmutexPtr->mutex);
+    pmutexPtr->thread = pthread_self();
+    pmutexPtr->counter = counter;
 }
 
 static void
@@ -156,7 +162,13 @@ PCondTimedWait(
     PMutex *pmutexPtr,
     struct timespec *ptime)
 {
+    int counter = pmutexPtr->counter;
+
+    pmutexPtr->thread = 0;
+    pmutexPtr->counter = 0; 
     pthread_cond_timedwait(pcondPtr, &pmutexPtr->mutex, ptime);
+    pmutexPtr->thread = pthread_self();
+    pmutexPtr->counter = counter; 
 }
 #endif /* HAVE_PTHREAD_MUTEX_RECURSIVE */
 
-- 
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