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From bdc374bfbb0ca34ddb40713eb51d8535fdf11952 Mon Sep 17 00:00:00 2001
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From: Stephan Bergmann <sbergman@redhat.com>
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Date: Wed, 31 Jul 2019 16:27:33 +0200
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Subject: [PATCH 2/2] Avoid deadlock in TestIndexSearcher
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---
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src/test/search/TestIndexSearcher.cpp | 51 +++++++++++++++++++++------
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1 file changed, 41 insertions(+), 10 deletions(-)
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diff --git a/src/test/search/TestIndexSearcher.cpp b/src/test/search/TestIndexSearcher.cpp
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index 02c21aaf..a6dde5ba 100644
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--- a/src/test/search/TestIndexSearcher.cpp
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+++ b/src/test/search/TestIndexSearcher.cpp
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@@ -8,9 +8,11 @@
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DEFINE_MUTEX(searchMutex);
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DEFINE_CONDITION(searchCondition);
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+bool searchReady;
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DEFINE_MUTEX(deleteMutex);
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DEFINE_CONDITION(deleteCondition);
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+bool deleteReady;
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_LUCENE_THREAD_FUNC(searchDocs, _searcher) {
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@@ -19,15 +21,20 @@ _LUCENE_THREAD_FUNC(searchDocs, _searcher) {
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Query * query = QueryParser::parse(_T("one"), _T("content"), &an);
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Hits * hits = searcher->search(query);
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-// _LUCENE_SLEEP(9999); //make sure that searchMutex is being waited on...
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+ {
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+ SCOPED_LOCK_MUTEX(searchMutex);
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+ searchReady = true;
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+ CONDITION_NOTIFYALL(searchCondition);
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+ }
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- CONDITION_NOTIFYALL(searchCondition);
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SCOPED_LOCK_MUTEX(deleteMutex);
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_CLLDELETE(hits);
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_CLLDELETE(query);
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- CONDITION_WAIT(deleteMutex, deleteCondition);
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+ while (!deleteReady) {
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+ CONDITION_WAIT(deleteMutex, deleteCondition);
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+ }
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_LUCENE_THREAD_FUNC_RETURN(0);
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}
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@@ -55,13 +62,24 @@ void testEndThreadException(CuTest *tc) {
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// this sequence is OK: delete searcher after search thread finish
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{
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+ searchReady = false;
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+ deleteReady = false;
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+
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IndexSearcher * searcher = _CLNEW IndexSearcher(&ram;;
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_LUCENE_THREADID_TYPE thread = _LUCENE_THREAD_CREATE(&searchDocs, searcher);
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- SCOPED_LOCK_MUTEX(searchMutex);
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- CONDITION_WAIT(searchMutex, searchCondition);
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-// _LUCENE_SLEEP(9999); //make sure that deleteMutex is being waited on...
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- CONDITION_NOTIFYALL(deleteCondition);
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+ {
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+ SCOPED_LOCK_MUTEX(searchMutex);
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+ while (!searchReady) {
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+ CONDITION_WAIT(searchMutex, searchCondition);
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+ }
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+ }
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+
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+ {
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+ SCOPED_LOCK_MUTEX(deleteMutex);
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+ deleteReady = true;
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+ CONDITION_NOTIFYALL(deleteCondition);
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+ }
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_LUCENE_THREAD_JOIN(thread);
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@@ -71,14 +89,27 @@ void testEndThreadException(CuTest *tc) {
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// this produces memory exception: delete searcher after search finish but before thread finish
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{
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+ searchReady = false;
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+ deleteReady = false;
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+
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IndexSearcher * searcher = _CLNEW IndexSearcher(&ram;;
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_LUCENE_THREADID_TYPE thread = _LUCENE_THREAD_CREATE(&searchDocs, searcher);
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- SCOPED_LOCK_MUTEX(searchMutex);
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- CONDITION_WAIT(searchMutex, searchCondition);
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+ {
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+ SCOPED_LOCK_MUTEX(searchMutex);
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+ while (!searchReady) {
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+ CONDITION_WAIT(searchMutex, searchCondition);
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+ }
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+ }
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+
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searcher->close();
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_CLLDELETE(searcher);
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- CONDITION_NOTIFYALL(deleteCondition);
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+
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+ {
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+ SCOPED_LOCK_MUTEX(deleteMutex);
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+ deleteReady = true;
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+ CONDITION_NOTIFYALL(deleteCondition);
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+ }
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_LUCENE_THREAD_JOIN(thread);
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}
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--
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2.21.0
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