1 files changed, 33 insertions, 7 deletions
diff --git a/indra/llcommon/llthread.h b/indra/llcommon/llthread.h
index f25339f48d..4b6c3df105 100644
--- a/indra/llcommon/llthread.h
+++ b/indra/llcommon/llthread.h
@@ -33,17 +33,25 @@
 #ifndef LL_LLTHREAD_H
 #define LL_LLTHREAD_H
 
-#include "llapr.h"
 #include "llapp.h"
-
+#include "llapr.h"
 #include "apr_thread_cond.h"
 
 class LLThread;
 class LLMutex;
 class LLCondition;
 
-class LLThread
+#if LL_WINDOWS
+#define ll_thread_local __declspec(thread)
+#else
+#define ll_thread_local __thread
+#endif
+
+class LL_COMMON_API LLThread
 {
+private:
+	static U32 sIDIter;
+
 public:
 	typedef enum e_thread_status
 	{
@@ -84,6 +92,8 @@ public:
 	apr_pool_t *getAPRPool() { return mAPRPoolp; }
 	LLVolatileAPRPool* getLocalAPRFilePool() { return mLocalAPRFilePoolp ; }
 
+	U32 getID() const { return mID; }
+
 private:
 	BOOL				mPaused;
 	
@@ -98,6 +108,7 @@ protected:
 	apr_pool_t			*mAPRPoolp;
 	BOOL				mIsLocalPool;
 	EThreadStatus		mStatus;
+	U32					mID;
 
 	//a local apr_pool for APRFile operations in this thread. If it exists, LLAPRFile::sAPRFilePoolp should not be used.
 	//Note: this pool is used by APRFile ONLY, do NOT use it for any other purposes.
@@ -130,24 +141,39 @@ protected:
 
 //============================================================================
 
-class LLMutex
+#define MUTEX_DEBUG (LL_DEBUG || LL_RELEASE_WITH_DEBUG_INFO)
+
+class LL_COMMON_API LLMutex
 {
 public:
+	typedef enum
+	{
+		NO_THREAD = 0xFFFFFFFF
+	} e_locking_thread;
+
 	LLMutex(apr_pool_t *apr_poolp); // NULL pool constructs a new pool for the mutex
 	~LLMutex();
 	
 	void lock();		// blocks
 	void unlock();
 	bool isLocked(); 	// non-blocking, but does do a lock/unlock so not free
+	U32 lockingThread() const; //get ID of locking thread
 	
 protected:
 	apr_thread_mutex_t *mAPRMutexp;
+	mutable U32			mCount;
+	mutable U32			mLockingThread;
+	
 	apr_pool_t			*mAPRPoolp;
 	BOOL				mIsLocalPool;
+	
+#if MUTEX_DEBUG
+	std::map<U32, BOOL> mIsLocked;
+#endif
 };
 
 // Actually a condition/mutex pair (since each condition needs to be associated with a mutex).
-class LLCondition : public LLMutex
+class LL_COMMON_API LLCondition : public LLMutex
 {
 public:
 	LLCondition(apr_pool_t *apr_poolp); // Defaults to global pool, could use the thread pool as well.
@@ -194,7 +220,7 @@ void LLThread::unlockData()
 
 // see llmemory.h for LLPointer<> definition
 
-class LLThreadSafeRefCount
+class LL_COMMON_API LLThreadSafeRefCount
 {
 public:
 	static void initThreadSafeRefCount(); // creates sMutex
@@ -246,7 +272,7 @@ private:
 
 // Simple responder for self destructing callbacks
 // Pure virtual class
-class LLResponder : public LLThreadSafeRefCount
+class LL_COMMON_API LLResponder : public LLThreadSafeRefCount
 {
 protected:
 	virtual ~LLResponder();