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path: root/indra/llcommon/llmutex.h
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2023-05-03DRTVWR-559 WIP - optimize ARC calculation et al.RunitaiLinden
2020-03-25DRTVWR-494: Use std::thread::id for LLThread::currentID().Nat Goodspeed
LLThread::currentID() used to return a U32, a distinct unsigned value incremented by explicitly constructing LLThread or by calling LLThread:: registerThreadID() early in a thread launched by other means. The latter imposed an unobvious requirement on new code based on std::thread. Using std::thread::id instead delegates to the compiler/library the problem of distinguishing threads launched by any means. Change lots of explicit U32 declarations. Introduce LLThread::id_t typedef to avoid having to run around fixing uses again if we later revisit this decision. LLMutex, which stores an LLThread::id_t, wants a distinguished value meaning NO_THREAD, and had an enum with that name. But as std::thread::id promises that the default-constructed value is distinct from every valid value, NO_THREAD becomes unnecessary and goes away. Because LLMutex now stores LLThread::id_t instead of U32, make llmutex.h #include "llthread.h" instead of the other way around. This makes LLMutex an incomplete type within llthread.h, so move LLThread::lockData() and unlockData() to the .cpp file. Similarly, remove llrefcount.h's #include "llmutex.h" to break circularity; instead forward-declare LLMutex. It turns out that a number of source files assumed that #include "llthread.h" would get the definition for LLMutex. Sprinkle #include "llmutex.h" as needed. In the SAFE_SSL code in llcorehttp/httpcommon.cpp, there's an ssl_thread_id() callback that returns an unsigned long to the SSL library. When LLThread:: currentID() was U32, we could simply return that. But std::thread::id is very deliberately opaque, and can't be reinterpret_cast to unsigned long. Fortunately it can be hashed because std::hash is specialized with that type.
2020-03-25DRTVWR-494: Encapsulate redundant VS boilerplate around <mutex>.Nat Goodspeed
2019-01-14SL-10291 Replace apr_mutex with standard C++11 functionalityandreykproductengine
2014-05-29Mergeup to 3.7.9 viewer-releaseGraham Linden
2014-02-24merge with releaseRichard Linden
2013-07-18SH-4297 WIP interesting: viewer-interesting starts loading cached scene lateRichard Linden
dependency cleanup - removed a lot of unecessary includes
2012-11-20SH-3406 WIP convert fast timers to lltrace systemRichard Linden
fixes to merge
2012-09-21SH-3275 WIP Run viewer metrics for object update messagesRichard Linden
added LLThreadLocalPtr broke llmutex out into llmutex.h got primary sampling buffer under thread local storage