diff options
Diffstat (limited to 'indra/llcommon/llthread.cpp')
| -rw-r--r-- | indra/llcommon/llthread.cpp | 100 |
1 files changed, 52 insertions, 48 deletions
diff --git a/indra/llcommon/llthread.cpp b/indra/llcommon/llthread.cpp index ed4f9eb376..4063cc730b 100644 --- a/indra/llcommon/llthread.cpp +++ b/indra/llcommon/llthread.cpp @@ -36,12 +36,6 @@ #include <sched.h> #endif -#if !LL_DARWIN -U32 ll_thread_local local_thread_ID = 0; -#endif - -U32 LLThread::sIDIter = 0; - //---------------------------------------------------------------------------- // Usage: // void run_func(LLThread* thread) @@ -62,6 +56,12 @@ U32 LLThread::sIDIter = 0; // //---------------------------------------------------------------------------- +#if !LL_DARWIN +U32 ll_thread_local sThreadID = 0; +#endif + +U32 LLThread::sIDIter = 0; + LL_COMMON_API void assert_main_thread() { static U32 s_thread_id = LLThread::currentID(); @@ -79,7 +79,7 @@ void *APR_THREAD_FUNC LLThread::staticRun(apr_thread_t *apr_threadp, void *datap LLThread *threadp = (LLThread *)datap; #if !LL_DARWIN - local_thread_ID = threadp->mID; + sThreadID = threadp->mID; #endif // Run the user supplied function @@ -100,6 +100,8 @@ LLThread::LLThread(const std::string& name, apr_pool_t *poolp) : mAPRThreadp(NULL), mStatus(STOPPED) { + mID = ++sIDIter; + // Thread creation probably CAN be paranoid about APR being initialized, if necessary if (poolp) { @@ -162,7 +164,7 @@ void LLThread::shutdown() if (!isStopped()) { // This thread just wouldn't stop, even though we gave it time - //llwarns << "LLThread::shutdown() exiting thread before clean exit!" << llendl; + //llwarns << "LLThread::~LLThread() exiting thread before clean exit!" << llendl; // Put a stake in its heart. apr_thread_exit(mAPRThreadp, -1); return; @@ -302,7 +304,7 @@ void LLThread::wakeLocked() //============================================================================ LLMutex::LLMutex(apr_pool_t *poolp) : - mAPRMutexp(NULL) + mAPRMutexp(NULL), mCount(0), mLockingThread(NO_THREAD) { //if (poolp) //{ @@ -321,7 +323,8 @@ LLMutex::LLMutex(apr_pool_t *poolp) : LLMutex::~LLMutex() { #if MUTEX_DEBUG - llassert_always(!isLocked()); // better not be locked! + //bad assertion, the subclass LLSignal might be "locked", and that's OK + //llassert_always(!isLocked()); // better not be locked! #endif apr_thread_mutex_destroy(mAPRMutexp); mAPRMutexp = NULL; @@ -334,7 +337,18 @@ LLMutex::~LLMutex() void LLMutex::lock() { +#if LL_DARWIN + if (mLockingThread == LLThread::currentID()) +#else + if (mLockingThread == sThreadID) +#endif + { //redundant lock + mCount++; + return; + } + apr_thread_mutex_lock(mAPRMutexp); + #if MUTEX_DEBUG // Have to have the lock before we can access the debug info U32 id = LLThread::currentID(); @@ -342,10 +356,22 @@ void LLMutex::lock() llerrs << "Already locked in Thread: " << id << llendl; mIsLocked[id] = TRUE; #endif + +#if LL_DARWIN + mLockingThread = LLThread::currentID(); +#else + mLockingThread = sThreadID; +#endif } void LLMutex::unlock() { + if (mCount > 0) + { //not the root unlock + mCount--; + return; + } + #if MUTEX_DEBUG // Access the debug info while we have the lock U32 id = LLThread::currentID(); @@ -353,6 +379,8 @@ void LLMutex::unlock() llerrs << "Not locked in Thread: " << id << llendl; mIsLocked[id] = FALSE; #endif + + mLockingThread = NO_THREAD; apr_thread_mutex_unlock(mAPRMutexp); } @@ -370,6 +398,11 @@ bool LLMutex::isLocked() } } +U32 LLMutex::lockingThread() const +{ + return mLockingThread; +} + //============================================================================ LLCondition::LLCondition(apr_pool_t *poolp) : @@ -390,6 +423,15 @@ LLCondition::~LLCondition() void LLCondition::wait() { + if (!isLocked()) + { //mAPRMutexp MUST be locked before calling apr_thread_cond_wait + apr_thread_mutex_lock(mAPRMutexp); +#if MUTEX_DEBUG + // avoid asserts on destruction in non-release builds + U32 id = LLThread::currentID(); + mIsLocked[id] = TRUE; +#endif + } apr_thread_cond_wait(mAPRCondp, mAPRMutexp); } @@ -404,44 +446,6 @@ void LLCondition::broadcast() } //============================================================================ -LLMutexBase::LLMutexBase() : - mLockingThread(NO_THREAD), - mCount(0) -{ -} - -void LLMutexBase::lock() -{ -#if LL_DARWIN - if (mLockingThread == LLThread::currentID()) -#else - if (mLockingThread == local_thread_ID) -#endif - { //redundant lock - mCount++; - return; - } - - apr_thread_mutex_lock(mAPRMutexp); - -#if LL_DARWIN - mLockingThread = LLThread::currentID(); -#else - mLockingThread = local_thread_ID; -#endif -} - -void LLMutexBase::unlock() -{ - if (mCount > 0) - { //not the root unlock - mCount--; - return; - } - mLockingThread = NO_THREAD; - - apr_thread_mutex_unlock(mAPRMutexp); -} //---------------------------------------------------------------------------- |