summaryrefslogtreecommitdiff
path: root/indra/llcommon/llthread.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'indra/llcommon/llthread.cpp')
-rw-r--r--indra/llcommon/llthread.cpp465
1 files changed, 256 insertions, 209 deletions
diff --git a/indra/llcommon/llthread.cpp b/indra/llcommon/llthread.cpp
index c3f235c6ee..b96b2ce4bc 100644
--- a/indra/llcommon/llthread.cpp
+++ b/indra/llcommon/llthread.cpp
@@ -34,6 +34,7 @@
#include "lltimer.h"
#include "lltrace.h"
#include "lltracethreadrecorder.h"
+#include "llexception.h"
#if LL_LINUX || LL_SOLARIS
#include <sched.h>
@@ -46,28 +47,28 @@ const DWORD MS_VC_EXCEPTION=0x406D1388;
#pragma pack(push,8)
typedef struct tagTHREADNAME_INFO
{
- DWORD dwType; // Must be 0x1000.
- LPCSTR szName; // Pointer to name (in user addr space).
- DWORD dwThreadID; // Thread ID (-1=caller thread).
- DWORD dwFlags; // Reserved for future use, must be zero.
+ DWORD dwType; // Must be 0x1000.
+ LPCSTR szName; // Pointer to name (in user addr space).
+ DWORD dwThreadID; // Thread ID (-1=caller thread).
+ DWORD dwFlags; // Reserved for future use, must be zero.
} THREADNAME_INFO;
#pragma pack(pop)
void set_thread_name( DWORD dwThreadID, const char* threadName)
{
- THREADNAME_INFO info;
- info.dwType = 0x1000;
- info.szName = threadName;
- info.dwThreadID = dwThreadID;
- info.dwFlags = 0;
-
- __try
- {
- ::RaiseException( MS_VC_EXCEPTION, 0, sizeof(info)/sizeof(DWORD), (DWORD*)&info );
- }
- __except(EXCEPTION_CONTINUE_EXECUTION)
- {
- }
+ THREADNAME_INFO info;
+ info.dwType = 0x1000;
+ info.szName = threadName;
+ info.dwThreadID = dwThreadID;
+ info.dwFlags = 0;
+
+ __try
+ {
+ ::RaiseException( MS_VC_EXCEPTION, 0, sizeof(info)/sizeof(DWORD), (ULONG_PTR*)&info );
+ }
+ __except(EXCEPTION_CONTINUE_EXECUTION)
+ {
+ }
}
#endif
@@ -99,17 +100,17 @@ U32 LLThread::sIDIter = 0;
LL_COMMON_API void assert_main_thread()
{
- static U32 s_thread_id = LLThread::currentID();
- if (LLThread::currentID() != s_thread_id)
- {
- LL_WARNS() << "Illegal execution from thread id " << (S32) LLThread::currentID()
- << " outside main thread " << (S32) s_thread_id << LL_ENDL;
- }
+ static U32 s_thread_id = LLThread::currentID();
+ if (LLThread::currentID() != s_thread_id)
+ {
+ LL_WARNS() << "Illegal execution from thread id " << (S32) LLThread::currentID()
+ << " outside main thread " << (S32) s_thread_id << LL_ENDL;
+ }
}
void LLThread::registerThreadID()
{
- sThreadID = ++sIDIter;
+ sThreadID = ++sIDIter;
}
//
@@ -117,157 +118,203 @@ void LLThread::registerThreadID()
//
void *APR_THREAD_FUNC LLThread::staticRun(apr_thread_t *apr_threadp, void *datap)
{
- LLThread *threadp = (LLThread *)datap;
+ LLThread *threadp = (LLThread *)datap;
#ifdef LL_WINDOWS
- set_thread_name(-1, threadp->mName.c_str());
+ set_thread_name(-1, threadp->mName.c_str());
#endif
- // for now, hard code all LLThreads to report to single master thread recorder, which is known to be running on main thread
- threadp->mRecorder = new LLTrace::ThreadRecorder(*LLTrace::get_master_thread_recorder());
-
- sThreadID = threadp->mID;
-
- // Run the user supplied function
- threadp->run();
-
- //LL_INFOS() << "LLThread::staticRun() Exiting: " << threadp->mName << LL_ENDL;
-
- delete threadp->mRecorder;
- threadp->mRecorder = NULL;
-
- // We're done with the run function, this thread is done executing now.
- //NB: we are using this flag to sync across threads...we really need memory barriers here
- threadp->mStatus = STOPPED;
-
- return NULL;
+ // for now, hard code all LLThreads to report to single master thread recorder, which is known to be running on main thread
+ threadp->mRecorder = new LLTrace::ThreadRecorder(*LLTrace::get_master_thread_recorder());
+
+ sThreadID = threadp->mID;
+
+ try
+ {
+ // Run the user supplied function
+ do
+ {
+ try
+ {
+ threadp->run();
+ }
+ catch (const LLContinueError &e)
+ {
+ LL_WARNS("THREAD") << "ContinueException on thread '" << threadp->mName <<
+ "' reentering run(). Error what is: '" << e.what() << "'" << LL_ENDL;
+ //output possible call stacks to log file.
+ LLError::LLCallStacks::print();
+
+ LOG_UNHANDLED_EXCEPTION("LLThread");
+ continue;
+ }
+ break;
+
+ } while (true);
+
+ //LL_INFOS() << "LLThread::staticRun() Exiting: " << threadp->mName << LL_ENDL;
+
+ // We're done with the run function, this thread is done executing now.
+ //NB: we are using this flag to sync across threads...we really need memory barriers here
+ threadp->mStatus = STOPPED;
+ }
+ catch (std::bad_alloc)
+ {
+ threadp->mStatus = CRASHED;
+ LLMemory::logMemoryInfo(TRUE);
+
+ //output possible call stacks to log file.
+ LLError::LLCallStacks::print();
+
+ LL_ERRS("THREAD") << "Bad memory allocation in LLThread::staticRun() named '" << threadp->mName << "'!" << LL_ENDL;
+ }
+ catch (...)
+ {
+ threadp->mStatus = CRASHED;
+ CRASH_ON_UNHANDLED_EXCEPTION("LLThread");
+ }
+
+ delete threadp->mRecorder;
+ threadp->mRecorder = NULL;
+
+ return NULL;
}
LLThread::LLThread(const std::string& name, apr_pool_t *poolp) :
- mPaused(FALSE),
- mName(name),
- mAPRThreadp(NULL),
- mStatus(STOPPED),
- mRecorder(NULL)
+ mPaused(FALSE),
+ mName(name),
+ mAPRThreadp(NULL),
+ mStatus(STOPPED),
+ mRecorder(NULL)
{
- mID = ++sIDIter;
-
- // Thread creation probably CAN be paranoid about APR being initialized, if necessary
- if (poolp)
- {
- mIsLocalPool = FALSE;
- mAPRPoolp = poolp;
- }
- else
- {
- mIsLocalPool = TRUE;
- apr_pool_create(&mAPRPoolp, NULL); // Create a subpool for this thread
- }
- mRunCondition = new LLCondition(mAPRPoolp);
- mDataLock = new LLMutex(mAPRPoolp);
- mLocalAPRFilePoolp = NULL ;
+ mID = ++sIDIter;
+
+ // Thread creation probably CAN be paranoid about APR being initialized, if necessary
+ if (poolp)
+ {
+ mIsLocalPool = FALSE;
+ mAPRPoolp = poolp;
+ }
+ else
+ {
+ mIsLocalPool = TRUE;
+ apr_pool_create(&mAPRPoolp, NULL); // Create a subpool for this thread
+ }
+ mRunCondition = new LLCondition(mAPRPoolp);
+ mDataLock = new LLMutex(mAPRPoolp);
+ mLocalAPRFilePoolp = NULL ;
}
LLThread::~LLThread()
{
- shutdown();
-
- if(mLocalAPRFilePoolp)
- {
- delete mLocalAPRFilePoolp ;
- mLocalAPRFilePoolp = NULL ;
- }
+ shutdown();
+
+ if (isCrashed())
+ {
+ LL_WARNS("THREAD") << "Destroying crashed thread named '" << mName << "'" << LL_ENDL;
+ }
+
+ if(mLocalAPRFilePoolp)
+ {
+ delete mLocalAPRFilePoolp ;
+ mLocalAPRFilePoolp = NULL ;
+ }
}
void LLThread::shutdown()
{
- // Warning! If you somehow call the thread destructor from itself,
- // the thread will die in an unclean fashion!
- if (mAPRThreadp)
- {
- if (!isStopped())
- {
- // The thread isn't already stopped
- // First, set the flag that indicates that we're ready to die
- setQuitting();
-
- //LL_INFOS() << "LLThread::~LLThread() Killing thread " << mName << " Status: " << mStatus << LL_ENDL;
- // Now wait a bit for the thread to exit
- // It's unclear whether I should even bother doing this - this destructor
- // should never get called unless we're already stopped, really...
- S32 counter = 0;
- const S32 MAX_WAIT = 600;
- while (counter < MAX_WAIT)
- {
- if (isStopped())
- {
- break;
- }
- // Sleep for a tenth of a second
- ms_sleep(100);
- yield();
- counter++;
- }
- }
-
- if (!isStopped())
- {
- // This thread just wouldn't stop, even though we gave it time
- //LL_WARNS() << "LLThread::~LLThread() exiting thread before clean exit!" << LL_ENDL;
- // Put a stake in its heart.
- delete mRecorder;
-
- apr_thread_exit(mAPRThreadp, -1);
- return;
- }
- mAPRThreadp = NULL;
- }
-
- delete mRunCondition;
- mRunCondition = NULL;
-
- delete mDataLock;
- mDataLock = NULL;
-
- if (mIsLocalPool && mAPRPoolp)
- {
- apr_pool_destroy(mAPRPoolp);
- mAPRPoolp = 0;
- }
-
- if (mRecorder)
- {
- // missed chance to properly shut down recorder (needs to be done in thread context)
- // probably due to abnormal thread termination
- // so just leak it and remove it from parent
- LLTrace::get_master_thread_recorder()->removeChildRecorder(mRecorder);
- }
+ if (isCrashed())
+ {
+ LL_WARNS("THREAD") << "Shutting down crashed thread named '" << mName << "'" << LL_ENDL;
+ }
+
+ // Warning! If you somehow call the thread destructor from itself,
+ // the thread will die in an unclean fashion!
+ if (mAPRThreadp)
+ {
+ if (!isStopped())
+ {
+ // The thread isn't already stopped
+ // First, set the flag that indicates that we're ready to die
+ setQuitting();
+
+ //LL_INFOS() << "LLThread::~LLThread() Killing thread " << mName << " Status: " << mStatus << LL_ENDL;
+ // Now wait a bit for the thread to exit
+ // It's unclear whether I should even bother doing this - this destructor
+ // should never get called unless we're already stopped, really...
+ S32 counter = 0;
+ const S32 MAX_WAIT = 600;
+ while (counter < MAX_WAIT)
+ {
+ if (isStopped())
+ {
+ break;
+ }
+ // Sleep for a tenth of a second
+ ms_sleep(100);
+ yield();
+ counter++;
+ }
+ }
+
+ if (!isStopped())
+ {
+ // This thread just wouldn't stop, even though we gave it time
+ //LL_WARNS() << "LLThread::~LLThread() exiting thread before clean exit!" << LL_ENDL;
+ // Put a stake in its heart.
+ delete mRecorder;
+
+ apr_thread_exit(mAPRThreadp, -1);
+ return;
+ }
+ mAPRThreadp = NULL;
+ }
+
+ delete mRunCondition;
+ mRunCondition = NULL;
+
+ delete mDataLock;
+ mDataLock = NULL;
+
+ if (mIsLocalPool && mAPRPoolp)
+ {
+ apr_pool_destroy(mAPRPoolp);
+ mAPRPoolp = 0;
+ }
+
+ if (mRecorder)
+ {
+ // missed chance to properly shut down recorder (needs to be done in thread context)
+ // probably due to abnormal thread termination
+ // so just leak it and remove it from parent
+ LLTrace::get_master_thread_recorder()->removeChildRecorder(mRecorder);
+ }
}
void LLThread::start()
{
- llassert(isStopped());
-
- // Set thread state to running
- mStatus = RUNNING;
-
- apr_status_t status =
- apr_thread_create(&mAPRThreadp, NULL, staticRun, (void *)this, mAPRPoolp);
-
- if(status == APR_SUCCESS)
- {
- // We won't bother joining
- apr_thread_detach(mAPRThreadp);
- }
- else
- {
- mStatus = STOPPED;
- LL_WARNS() << "failed to start thread " << mName << LL_ENDL;
- ll_apr_warn_status(status);
- }
+ llassert(isStopped());
+
+ // Set thread state to running
+ mStatus = RUNNING;
+
+ apr_status_t status =
+ apr_thread_create(&mAPRThreadp, NULL, staticRun, (void *)this, mAPRPoolp);
+
+ if(status == APR_SUCCESS)
+ {
+ // We won't bother joining
+ apr_thread_detach(mAPRThreadp);
+ }
+ else
+ {
+ mStatus = STOPPED;
+ LL_WARNS() << "failed to start thread " << mName << LL_ENDL;
+ ll_apr_warn_status(status);
+ }
}
@@ -278,28 +325,28 @@ void LLThread::start()
// The thread will pause when (and if) it calls checkPause()
void LLThread::pause()
{
- if (!mPaused)
- {
- // this will cause the thread to stop execution as soon as checkPause() is called
- mPaused = 1; // Does not need to be atomic since this is only set/unset from the main thread
- }
+ if (!mPaused)
+ {
+ // this will cause the thread to stop execution as soon as checkPause() is called
+ mPaused = 1; // Does not need to be atomic since this is only set/unset from the main thread
+ }
}
void LLThread::unpause()
{
- if (mPaused)
- {
- mPaused = 0;
- }
+ if (mPaused)
+ {
+ mPaused = 0;
+ }
- wake(); // wake up the thread if necessary
+ wake(); // wake up the thread if necessary
}
// virtual predicate function -- returns true if the thread should wake up, false if it should sleep.
bool LLThread::runCondition(void)
{
- // by default, always run. Handling of pause/unpause is done regardless of this function's result.
- return true;
+ // by default, always run. Handling of pause/unpause is done regardless of this function's result.
+ return true;
}
//============================================================================
@@ -307,65 +354,65 @@ bool LLThread::runCondition(void)
// Stop thread execution if requested until unpaused.
void LLThread::checkPause()
{
- mDataLock->lock();
-
- // This is in a while loop because the pthread API allows for spurious wakeups.
- while(shouldSleep())
- {
- mDataLock->unlock();
- mRunCondition->wait(); // unlocks mRunCondition
- mDataLock->lock();
- // mRunCondition is locked when the thread wakes up
- }
-
- mDataLock->unlock();
+ mDataLock->lock();
+
+ // This is in a while loop because the pthread API allows for spurious wakeups.
+ while(shouldSleep())
+ {
+ mDataLock->unlock();
+ mRunCondition->wait(); // unlocks mRunCondition
+ mDataLock->lock();
+ // mRunCondition is locked when the thread wakes up
+ }
+
+ mDataLock->unlock();
}
//============================================================================
void LLThread::setQuitting()
{
- mDataLock->lock();
- if (mStatus == RUNNING)
- {
- mStatus = QUITTING;
- }
- mDataLock->unlock();
- wake();
+ mDataLock->lock();
+ if (mStatus == RUNNING)
+ {
+ mStatus = QUITTING;
+ }
+ mDataLock->unlock();
+ wake();
}
// static
U32 LLThread::currentID()
{
- return sThreadID;
+ return sThreadID;
}
// static
void LLThread::yield()
{
#if LL_LINUX || LL_SOLARIS
- sched_yield(); // annoyingly, apr_thread_yield is a noop on linux...
+ sched_yield(); // annoyingly, apr_thread_yield is a noop on linux...
#else
- apr_thread_yield();
+ apr_thread_yield();
#endif
}
void LLThread::wake()
{
- mDataLock->lock();
- if(!shouldSleep())
- {
- mRunCondition->signal();
- }
- mDataLock->unlock();
+ mDataLock->lock();
+ if(!shouldSleep())
+ {
+ mRunCondition->signal();
+ }
+ mDataLock->unlock();
}
void LLThread::wakeLocked()
{
- if(!shouldSleep())
- {
- mRunCondition->signal();
- }
+ if(!shouldSleep())
+ {
+ mRunCondition->signal();
+ }
}
//============================================================================
@@ -378,38 +425,38 @@ LLMutex* LLThreadSafeRefCount::sMutex = 0;
//static
void LLThreadSafeRefCount::initThreadSafeRefCount()
{
- if (!sMutex)
- {
- sMutex = new LLMutex(0);
- }
+ if (!sMutex)
+ {
+ sMutex = new LLMutex(0);
+ }
}
//static
void LLThreadSafeRefCount::cleanupThreadSafeRefCount()
{
- delete sMutex;
- sMutex = NULL;
+ delete sMutex;
+ sMutex = NULL;
}
-
+
//----------------------------------------------------------------------------
LLThreadSafeRefCount::LLThreadSafeRefCount() :
- mRef(0)
+ mRef(0)
{
}
LLThreadSafeRefCount::LLThreadSafeRefCount(const LLThreadSafeRefCount& src)
{
- mRef = 0;
+ mRef = 0;
}
LLThreadSafeRefCount::~LLThreadSafeRefCount()
{
- if (mRef != 0)
- {
- LL_ERRS() << "deleting non-zero reference" << LL_ENDL;
- }
+ if (mRef != 0)
+ {
+ LL_ERRS() << "deleting non-zero reference" << LL_ENDL;
+ }
}
//============================================================================
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-11 05:27:27 +0000