721ffa319d
A distinct exception derived from std::bad_alloc, used in cases when memory didn't really run out, but the process or task reached the memory limit alloted for it. Using a distinct type for this case allows for LSA to correctly react to this case.
29 lines
802 B
C++
29 lines
802 B
C++
/*
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* Copyright (C) 2023-present ScyllaDB
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*/
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/*
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* SPDX-License-Identifier: AGPL-3.0-or-later
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*/
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#pragma once
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#include <string>
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namespace utils {
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// An exception thrown when a certain process or task is being terminated because
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// it has reached the memory limit alloted for said task or task group.
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// This is distinct from a regular bad-alloc in that possibly there is still
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// memory available but not for the task being terminated.
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// Allows code like LSA to tell real alloc failure from artificial one and act
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// accordingly (not retry the task).
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class memory_limit_reached : public std::bad_alloc {
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std::string _msg;
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public:
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memory_limit_reached(std::string_view msg) : _msg(msg) { }
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const char* what() const noexcept override { return _msg.c_str(); }
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};
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} // namespace utils
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