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37 lines
1.9 KiB
C++
37 lines
1.9 KiB
C++
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#pragma once
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#include <base/scope_guard.h>
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#include <Common/Exception.h>
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#include <Common/LockMemoryExceptionInThread.h>
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#define NOEXCEPT_SCOPE_IMPL_CONCAT(n, expected) \
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LockMemoryExceptionInThread lock_memory_tracker##n(VariableContext::Global); \
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SCOPE_EXIT( \
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{ \
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const auto uncaught = std::uncaught_exceptions(); \
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assert((expected) == uncaught || (expected) + 1 == uncaught); \
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if ((expected) < uncaught) \
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{ \
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tryLogCurrentException("NOEXCEPT_SCOPE"); \
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abort(); \
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} \
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} \
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)
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#define NOEXCEPT_SCOPE_IMPL(n, expected) NOEXCEPT_SCOPE_IMPL_CONCAT(n, expected)
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#define NOEXCEPT_SCOPE_CONCAT(n) \
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const auto num_curr_exceptions##n = std::uncaught_exceptions(); \
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NOEXCEPT_SCOPE_IMPL(n, num_curr_exceptions##n)
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#define NOEXCEPT_SCOPE_FWD(n) NOEXCEPT_SCOPE_CONCAT(n)
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/// It can be used in critical places to exit on unexpected exceptions.
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/// SIGABRT is usually better that broken in-memory state with unpredictable consequences.
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/// It also temporarily disables exception from memory tracker in current thread.
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/// Strict version does not take into account nested exception (i.e. it aborts even when we're in catch block).
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#define NOEXCEPT_SCOPE_STRICT NOEXCEPT_SCOPE_IMPL(__LINE__, 0)
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#define NOEXCEPT_SCOPE NOEXCEPT_SCOPE_FWD(__LINE__)
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