From 84612fec1c94840c7175a4aa03ffac5505960467 Mon Sep 17 00:00:00 2001
From: dan <dan@noemail.net>
Date: Tue, 10 Aug 2010 07:12:26 +0000
Subject: Changes to debugging code in mutex_unix.c and mutex_w32.c to make an
 assert() statement threadsafe.

FossilOrigin-Name: e82e32bd431ccacd276df8241592eb5519d87122
---
 src/mutex_unix.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'src/mutex_unix.c')

diff --git a/src/mutex_unix.c b/src/mutex_unix.c
index a1ebc3b75..196975e71 100644
--- a/src/mutex_unix.c
+++ b/src/mutex_unix.c
@@ -235,6 +235,7 @@ static void pthreadMutexEnter(sqlite3_mutex *p){
   */
   pthread_mutex_lock(&p->mutex);
 #if SQLITE_MUTEX_NREF
+  assert( p->nRef>0 || p->owner==0 );
   p->owner = pthread_self();
   p->nRef++;
 #endif
@@ -307,6 +308,7 @@ static void pthreadMutexLeave(sqlite3_mutex *p){
   assert( pthreadMutexHeld(p) );
 #if SQLITE_MUTEX_NREF
   p->nRef--;
+  if( p->nRef==0 ) p->owner = 0;
 #endif
   assert( p->nRef==0 || p->id==SQLITE_MUTEX_RECURSIVE );
 
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