setlocale bloccato su Windows

Question

setlocale(LC_ALL, "uk-UA") a volte si blocca/deadlock per me con motivo sconosciuto. Lo stack di chiamate è:

ntdll.dll!_ZwWaitForSingleObject@12() Unknown 
ntdll.dll!_RtlpWaitOnCriticalSection@8() Unknown 
ntdll.dll!_RtlEnterCriticalSection@4() Unknown 
ntdll.dll!_LdrpLoadDll@28() Unknown 
ntdll.dll!_LdrLoadDll@16() Unknown 
KernelBase.dll!_LoadLibraryExW@12() Unknown 
ucrtbased.dll!__crt_findfile_traits::get_invalid_value(void) Unknown 
ucrtbased.dll!__acrt_lock_and_call<class <lambda_a463b7b0560cfcaf9b17f27c6ef46564> >(enum __acrt_lock_id,class <lambda_a463b7b0560cfcaf9b17f27c6ef46564> &&) Unknown 
ucrtbased.dll!__acrt_lock_and_call<class <lambda_a463b7b0560cfcaf9b17f27c6ef46564> >(enum __acrt_lock_id,class <lambda_a463b7b0560cfcaf9b17f27c6ef46564> &&) Unknown 
ucrtbased.dll!__acrt_lock_and_call<class <lambda_a463b7b0560cfcaf9b17f27c6ef46564> >(enum __acrt_lock_id,class <lambda_a463b7b0560cfcaf9b17f27c6ef46564> &&) Unknown 
ucrtbased.dll!__acrt_lock_and_call<class <lambda_a463b7b0560cfcaf9b17f27c6ef46564> >(enum __acrt_lock_id,class <lambda_a463b7b0560cfcaf9b17f27c6ef46564> &&) Unknown 
ucrtbased.dll!__acrt_lock_and_call<class <lambda_a463b7b0560cfcaf9b17f27c6ef46564> >(enum __acrt_lock_id,class <lambda_a463b7b0560cfcaf9b17f27c6ef46564> &&) Unknown 
ucrtbased.dll!___acrt_can_use_vista_locale_apis() Unknown 
ucrtbased.dll!__expandlocale() Unknown 
ucrtbased.dll!__wsetlocale() Unknown 
ucrtbased.dll!__crt_call_and_cleanup<class <lambda_565169b3e3b494427ce1bebdd17b54ac>,class <lambda_f51fe5fd7c79a33db34fc9310f277369> >(class <lambda_565169b3e3b494427ce1bebdd17b54ac> &&,class <lambda_f51fe5fd7c79a33db34fc9310f277369> &&) Unknown 
ucrtbased.dll!__crt_seh_guarded_call<void>::operator()<class <lambda_0f92d0c5a8007722f95b3b6c71cd8e3e>,class <lambda_321f9d61c14d59ff00145e45db1313e0> &,class <lambda_3298c911d7b53f44106027a7fde9a80a> >(class <lambda_0f92d0c5a8007722f95b3b6c71cd8e3e> &&,class <lambda_321f9d61c14d59ff00145e45db1313e0> &,class <lambda_3298c911d7b53f44106027a7fde9a80a> &&) Unknown 
ucrtbased.dll!__acrt_lock_and_call<class <lambda_321f9d61c14d59ff00145e45db1313e0> >(enum __acrt_lock_id,class <lambda_321f9d61c14d59ff00145e45db1313e0> &&) Unknown 
ucrtbased.dll!__crt_call_and_cleanup<class <lambda_565169b3e3b494427ce1bebdd17b54ac>,class <lambda_f51fe5fd7c79a33db34fc9310f277369> >(class <lambda_565169b3e3b494427ce1bebdd17b54ac> &&,class <lambda_f51fe5fd7c79a33db34fc9310f277369> &&) Unknown 
ucrtbased.dll!__crt_seh_guarded_call<void>::operator()<class <lambda_507d9fd6b66e39451a8852ba73f804a7>,class <lambda_565169b3e3b494427ce1bebdd17b54ac> &,class <lambda_f51fe5fd7c79a33db34fc9310f277369> &>(class <lambda_507d9fd6b66e39451a8852ba73f804a7> &&,class <lambda_565169b3e3b494427ce1bebdd17b54ac> &,class <lambda_f51fe5fd7c79a33db34fc9310f277369> &) Unknown 
ucrtbased.dll!__crt_call_and_cleanup<class <lambda_565169b3e3b494427ce1bebdd17b54ac>,class <lambda_f51fe5fd7c79a33db34fc9310f277369> >(class <lambda_565169b3e3b494427ce1bebdd17b54ac> &&,class <lambda_f51fe5fd7c79a33db34fc9310f277369> &&) Unknown 
ucrtbased.dll!__wsetlocale() Unknown 
ucrtbased.dll!___acrt_update_multibyte_info() Unknown 
ucrtbased.dll!_setlocale() Unknown 

A volte funziona, ma a volte non ritorna mai da esso. Non riesco a identificare la ragione. Uso Visual Studio 2015 e Windows 7.

Answer 1

Questo era un bug nella build TH1 (10.0.10240) della Universal CRT. Il bug è stato corretto nel build di Windows 10 November Update (TH2) (10.0.10586).

È possibile scaricare e installare l'SDK di Windows 10 aggiornato da https://dev.windows.com/en-us/downloads/windows-10-sdk. Questo SDK contiene le librerie CRT universali statiche, le DLL Universal CRT di debug (ucrtbased.dll e altri) e le DLL Universal CRT di vendita per la ridistribuzione locale dell'app.

È possibile scaricare i ridistribuibili Universal CRT aggiornati da https://www.microsoft.com/en-us/download/details.aspx?id=50410. Questi contengono il CRT universale aggiornato aggiornato per la distribuzione centrale nella directory di sistema.