diff options
Diffstat (limited to 'src/corelib/thread')
| -rw-r--r-- | src/corelib/thread/qreadwritelock.h | 30 |
1 files changed, 12 insertions, 18 deletions
diff --git a/src/corelib/thread/qreadwritelock.h b/src/corelib/thread/qreadwritelock.h index 278b8d4..9521ac3 100644 --- a/src/corelib/thread/qreadwritelock.h +++ b/src/corelib/thread/qreadwritelock.h @@ -96,19 +96,19 @@ public: inline void unlock() { - if (q_lock) { + if (q_val) { if ((q_val & quintptr(1u)) == quintptr(1u)) { q_val &= ~quintptr(1u); - q_lock->unlock(); + readWriteLock()->unlock(); } } } inline void relock() { - if (q_lock) { + if (q_val) { if ((q_val & quintptr(1u)) == quintptr(0u)) { - q_lock->lockForRead(); + readWriteLock()->lockForRead(); q_val |= quintptr(1u); } } @@ -119,14 +119,11 @@ public: private: Q_DISABLE_COPY(QReadLocker) - union { - QReadWriteLock *q_lock; - quintptr q_val; - }; + quintptr q_val; }; inline QReadLocker::QReadLocker(QReadWriteLock *areadWriteLock) - : q_lock(areadWriteLock) + : q_val(reinterpret_cast<quintptr>(areadWriteLock)) { Q_ASSERT_X((q_val & quintptr(1u)) == quintptr(0), "QReadLocker", "QReadWriteLock pointer is misaligned"); @@ -143,19 +140,19 @@ public: inline void unlock() { - if (q_lock) { + if (q_val) { if ((q_val & quintptr(1u)) == quintptr(1u)) { q_val &= ~quintptr(1u); - q_lock->unlock(); + readWriteLock()->unlock(); } } } inline void relock() { - if (q_lock) { + if (q_val) { if ((q_val & quintptr(1u)) == quintptr(0u)) { - q_lock->lockForWrite(); + readWriteLock()->lockForWrite(); q_val |= quintptr(1u); } } @@ -167,14 +164,11 @@ public: private: Q_DISABLE_COPY(QWriteLocker) - union{ - QReadWriteLock *q_lock; - quintptr q_val; - }; + quintptr q_val; }; inline QWriteLocker::QWriteLocker(QReadWriteLock *areadWriteLock) - : q_lock(areadWriteLock) + : q_val(reinterpret_cast<quintptr>(areadWriteLock)) { Q_ASSERT_X((q_val & quintptr(1u)) == quintptr(0), "QWriteLocker", "QReadWriteLock pointer is misaligned"); |