diff options
Diffstat (limited to 'indra')
-rw-r--r-- | indra/llcommon/classic_callback.h | 10 | ||||
-rw-r--r-- | indra/llcommon/llrand.cpp | 14 | ||||
-rw-r--r-- | indra/llcommon/llthread.cpp | 13 | ||||
-rw-r--r-- | indra/llcommon/llthread.h | 2 | ||||
-rw-r--r-- | indra/llcommon/stdtypes.h | 18 | ||||
-rw-r--r-- | indra/llmessage/llxfer.cpp | 9 |
6 files changed, 27 insertions, 39 deletions
diff --git a/indra/llcommon/classic_callback.h b/indra/llcommon/classic_callback.h index 1ad6dbc58f..009c25d67c 100644 --- a/indra/llcommon/classic_callback.h +++ b/indra/llcommon/classic_callback.h @@ -119,11 +119,11 @@ public: * ClassicCallback must not itself be copied or moved! Once you've passed * get_userdata() to some API, this object MUST remain at that address. */ - // However, we can't yet count on C++17 Class Template Argument Deduction, - // which means makeClassicCallback() is still useful, which means we MUST - // be able to return one to construct into caller's instance (move ctor). - // Possible defense: bool 'referenced' data member set by get_userdata(), - // with an llassert_always(! referenced) check in the move constructor. + // However, makeClassicCallback() is useful for deducing the CALLABLE + // type, which means we MUST be able to return one to construct into + // caller's instance (move ctor). Possible defense: bool 'referenced' data + // member set by get_userdata(), with an llassert_always(! referenced) + // check in the move constructor. ClassicCallback(ClassicCallback const&) = delete; ClassicCallback(ClassicCallback&&) = default; // delete; ClassicCallback& operator=(ClassicCallback const&) = delete; diff --git a/indra/llcommon/llrand.cpp b/indra/llcommon/llrand.cpp index 33afc50cf7..e4065e23bf 100644 --- a/indra/llcommon/llrand.cpp +++ b/indra/llcommon/llrand.cpp @@ -58,7 +58,9 @@ * to restore uniform distribution. */ -static LLRandLagFib2281 gRandomGenerator(LLUUID::getRandomSeed()); +// gRandomGenerator is a stateful static object, which is therefore not +// inherently thread-safe. +static thread_local LLRandLagFib2281 gRandomGenerator(LLUUID::getRandomSeed()); // no default implementation, only specific F64 and F32 specializations template <typename REAL> @@ -71,7 +73,7 @@ inline F64 ll_internal_random<F64>() // CPUs (or at least multi-threaded processes) seem to // occasionally give an obviously incorrect random number -- like // 5^15 or something. Sooooo, clamp it as described above. - F64 rv = gRandomGenerator(); + F64 rv{ gRandomGenerator() }; if(!((rv >= 0.0) && (rv < 1.0))) return fmod(rv, 1.0); return rv; } @@ -79,7 +81,13 @@ inline F64 ll_internal_random<F64>() template <> inline F32 ll_internal_random<F32>() { - return F32(ll_internal_random<F64>()); + // *HACK: clamp the result as described above. + // Per Monty, it's important to clamp using the correct fmodf() rather + // than expanding to F64 for fmod() and then truncating back to F32. Prior + // to this change, we were getting sporadic ll_frand() == 1.0 results. + F32 rv{ narrow(gRandomGenerator()) }; + if(!((rv >= 0.0f) && (rv < 1.0f))) return fmodf(rv, 1.0f); + return rv; } /*------------------------------ F64 aliases -------------------------------*/ diff --git a/indra/llcommon/llthread.cpp b/indra/llcommon/llthread.cpp index 4eaa05c335..cd4975d9d3 100644 --- a/indra/llcommon/llthread.cpp +++ b/indra/llcommon/llthread.cpp @@ -113,15 +113,16 @@ LL_COMMON_API bool on_main_thread() return (LLThread::currentID() == main_thread()); } -LL_COMMON_API void assert_main_thread() +LL_COMMON_API bool assert_main_thread() { auto curr = LLThread::currentID(); auto main = main_thread(); - if (curr != main) - { - LL_WARNS() << "Illegal execution from thread id " << curr - << " outside main thread " << main << LL_ENDL; - } + if (curr == main) + return true; + + LL_WARNS() << "Illegal execution from thread id " << curr + << " outside main thread " << main << LL_ENDL; + return false; } // this function has become moot diff --git a/indra/llcommon/llthread.h b/indra/llcommon/llthread.h index 50202631e7..9f1c589fcd 100644 --- a/indra/llcommon/llthread.h +++ b/indra/llcommon/llthread.h @@ -152,7 +152,7 @@ public: //============================================================================ -extern LL_COMMON_API void assert_main_thread(); +extern LL_COMMON_API bool assert_main_thread(); extern LL_COMMON_API bool on_main_thread(); #endif // LL_LLTHREAD_H diff --git a/indra/llcommon/stdtypes.h b/indra/llcommon/stdtypes.h index 0b43d7ad4b..3aba9dda00 100644 --- a/indra/llcommon/stdtypes.h +++ b/indra/llcommon/stdtypes.h @@ -156,18 +156,15 @@ typedef int intptr_t; * type. */ // narrow_holder is a struct that accepts the passed value as its original -// type and provides templated conversion functions to other types. Once we're -// building with compilers that support Class Template Argument Deduction, we -// can rename this class template 'narrow' and eliminate the narrow() factory -// function below. +// type and provides templated conversion functions to other types. template <typename FROM> -class narrow_holder +class narrow { private: FROM mValue; public: - narrow_holder(FROM value): mValue(value) {} + narrow(FROM value): mValue(value) {} /*---------------------- Narrowing unsigned to signed ----------------------*/ template <typename TO, @@ -207,13 +204,4 @@ public: } }; -/// narrow() factory function returns a narrow_holder<FROM>(), which can be -/// implicitly converted to the target type. -template <typename FROM> -inline -narrow_holder<FROM> narrow(FROM value) -{ - return { value }; -} - #endif diff --git a/indra/llmessage/llxfer.cpp b/indra/llmessage/llxfer.cpp index 93d5cfc131..212d0619d1 100644 --- a/indra/llmessage/llxfer.cpp +++ b/indra/llmessage/llxfer.cpp @@ -386,12 +386,3 @@ std::ostream& operator<< (std::ostream& os, LLXfer &hh) os << hh.getFileName() ; return os; } - - - - - - - - - |