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QmakeProject: Fix crash on updating sources

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ProFileCacheManager::discardFile(s) may remove an entry from
the ProfileCache only when it is unused (which is the case iff
ent->locker is zero).

Change-Id: I9df2079087af6bd0d35dd121db6222e8a6ec9389
Task-number: QTCREATORBUG-14730
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
(cherry picked from qtcreator/dedcd25924743e494055c1e0195aeef0f3983a1d)
(cherry picked from qtcreator/b335b2a083e456e2b44b1e9454a0f4cd41e2a397)
(cherry picked from qtcreator/a027cbcd7051c634a51b6029dcb8a5b4bfe8b046)
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>
This commit is contained in:
Daniel Teske 2015-07-16 17:42:08 +02:00 committed by Oswald Buddenhagen
parent 69032adda0
commit e59d39c6fd
1 changed files with 24 additions and 1 deletions
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25
qmake/library/qmakeparser.cpp
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@ -64,6 +64,18 @@ void ProFileCache::discardFile(const QString &fileName)
#endif
QHash<QString, Entry>::Iterator it = parsed_files.find(fileName);
if (it != parsed_files.end()) {
#ifdef PROPARSER_THREAD_SAFE
if (it->locker) {
if (!it->locker->done) {
++it->locker->waiters;
it->locker->cond.wait(&mutex);
if (!--it->locker->waiters) {
delete it->locker;
it->locker = 0;
}
}
}
#endif
if (it->pro)
it->pro->deref();
parsed_files.erase(it);
@ -80,6 +92,18 @@ void ProFileCache::discardFiles(const QString &prefix)
end = parsed_files.end();
while (it != end)
if (it.key().startsWith(prefix)) {
#ifdef PROPARSER_THREAD_SAFE
if (it->locker) {
if (!it->locker->done) {
++it->locker->waiters;
it->locker->cond.wait(&mutex);
if (!--it->locker->waiters) {
delete it->locker;
it->locker = 0;
}
}
}
#endif
if (it->pro)
it->pro->deref();
it = parsed_files.erase(it);
@ -88,7 +112,6 @@ void ProFileCache::discardFiles(const QString &prefix)
}
}
////////// Parser ///////////
#define fL1S(s) QString::fromLatin1(s)