[libc++] Implement terminate(), unexpected() and uncaught_exceptions() on Windows Summary: This patch implements the following functions on Windows by forwarding to the MSVCRT: * `get_terminate()` * `set_terminate()` * `terminate()` * `set_unexpected()` * `get_unexpected()` * `unexpected()` * `uncaught_exception()` * `uncaught_exceptions()` Reviewers: compnerd, rnk, majnemer, smeenai Subscribers: cfe-commits Differential Revision: https://reviews.llvm.org/D28442 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@291343 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/src/exception.cpp b/src/exception.cpp index ec8969a..f25041d 100644 --- a/src/exception.cpp +++ b/src/exception.cpp
@@ -12,7 +12,10 @@ #include "exception" #include "new" -#if defined(__APPLE__) && !defined(LIBCXXRT) && \ +#if defined(_LIBCPP_ABI_MICROSOFT) +#include <eh.h> +#include <corecrt_terminate.h> +#elif defined(__APPLE__) && !defined(LIBCXXRT) && \ !defined(_LIBCPP_BUILDING_HAS_NO_ABI_LIBRARY) #include <cxxabi.h> @@ -46,13 +49,21 @@ unexpected_handler set_unexpected(unexpected_handler func) _NOEXCEPT { - return __sync_lock_test_and_set(&__unexpected_handler, func); +#if defined(_LIBCPP_ABI_MICROSOFT) + return ::set_unexpected(func); +#else + return __sync_lock_test_and_set(&__unexpected_handler, func); +#endif } unexpected_handler get_unexpected() _NOEXCEPT { - return __sync_fetch_and_add(&__unexpected_handler, (unexpected_handler)0); +#if defined(_LIBCPP_ABI_MICROSOFT) + return ::_get_unexpected(); +#else + return __sync_fetch_and_add(&__unexpected_handler, (unexpected_handler)0); +#endif } _LIBCPP_NORETURN @@ -67,13 +78,21 @@ terminate_handler set_terminate(terminate_handler func) _NOEXCEPT { - return __sync_lock_test_and_set(&__terminate_handler, func); +#if defined(_LIBCPP_ABI_MICROSOFT) + return ::set_terminate(func); +#else + return __sync_lock_test_and_set(&__terminate_handler, func); +#endif } terminate_handler get_terminate() _NOEXCEPT { - return __sync_fetch_and_add(&__terminate_handler, (terminate_handler)0); +#if defined(_LIBCPP_ABI_MICROSOFT) + return ::_get_terminate(); +#else + return __sync_fetch_and_add(&__terminate_handler, (terminate_handler)0); +#endif } #ifndef __EMSCRIPTEN__ // We provide this in JS @@ -103,6 +122,7 @@ #endif // !defined(LIBCXXRT) && !defined(_LIBCPPABI_VERSION) #if !defined(LIBCXXRT) && !defined(__GLIBCXX__) && !defined(__EMSCRIPTEN__) + bool uncaught_exception() _NOEXCEPT { return uncaught_exceptions() > 0; } int uncaught_exceptions() _NOEXCEPT @@ -115,7 +135,9 @@ # else return __cxa_uncaught_exception() ? 1 : 0; # endif -#else // __APPLE__ +#elif defined(_LIBCPP_ABI_MICROSOFT) + return __uncaught_exceptions(); +#else # if defined(_MSC_VER) && ! defined(__clang__) _LIBCPP_WARNING("uncaught_exceptions not yet implemented") # else 