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Diffstat (limited to 'indra/llcommon/llthread.cpp')
-rw-r--r--indra/llcommon/llthread.cpp46
1 files changed, 44 insertions, 2 deletions
diff --git a/indra/llcommon/llthread.cpp b/indra/llcommon/llthread.cpp
index 37370e44e7..0385569a02 100644
--- a/indra/llcommon/llthread.cpp
+++ b/indra/llcommon/llthread.cpp
@@ -62,6 +62,12 @@
//
//----------------------------------------------------------------------------
+#if !LL_DARWIN
+U32 ll_thread_local sThreadID = 0;
+#endif
+
+U32 LLThread::sIDIter = 0;
+
//
// Handed to the APR thread creation function
//
@@ -72,10 +78,14 @@ void *APR_THREAD_FUNC LLThread::staticRun(apr_thread_t *apr_threadp, void *datap
// Set thread state to running
threadp->mStatus = RUNNING;
+#if !LL_DARWIN
+ sThreadID = threadp->mID;
+#endif
+
// Run the user supplied function
threadp->run();
- llinfos << "LLThread::staticRun() Exiting: " << threadp->mName << llendl;
+ //llinfos << "LLThread::staticRun() Exiting: " << threadp->mName << llendl;
// We're done with the run function, this thread is done executing now.
threadp->mStatus = STOPPED;
@@ -90,6 +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)
{
@@ -273,7 +285,7 @@ void LLThread::wakeLocked()
//============================================================================
LLMutex::LLMutex(apr_pool_t *poolp) :
- mAPRMutexp(NULL)
+ mAPRMutexp(NULL), mCount(0), mLockingThread(NO_THREAD)
{
//if (poolp)
//{
@@ -305,7 +317,18 @@ 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();
@@ -313,10 +336,22 @@ 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();
@@ -324,6 +359,8 @@ void LLMutex::unlock()
llerrs << "Not locked in Thread: " << id << llendl;
mIsLocked[id] = FALSE;
#endif
+
+ mLockingThread = NO_THREAD;
apr_thread_mutex_unlock(mAPRMutexp);
}
@@ -341,6 +378,11 @@ bool LLMutex::isLocked()
}
}
+U32 LLMutex::lockingThread() const
+{
+ return mLockingThread;
+}
+
//============================================================================
LLCondition::LLCondition(apr_pool_t *poolp) :