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42 lines
960 B
C++
42 lines
960 B
C++
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#pragma once
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#include <stddef.h>
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#include <cstdint>
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#include <utility>
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#include <atomic>
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#include <common/types.h>
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#include <string_view>
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/** Allows to count number of simultaneously happening error codes.
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* See also Exception.cpp for incrementing part.
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*/
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namespace DB
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{
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namespace ErrorCodes
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{
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/// ErrorCode identifier (index in array).
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using ErrorCode = size_t;
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using Value = int;
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/// Get name of error_code by identifier.
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/// Returns statically allocated string.
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std::string_view getName(ErrorCode event);
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/// ErrorCode identifier -> current value of error_code.
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extern std::atomic<Value> values[];
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/// Get index just after last error_code identifier.
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ErrorCode end();
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/// Add value for specified error_code.
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inline void increment(ErrorCode error_code)
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{
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error_code = std::min<Value>(error_code, end()-1);
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values[error_code].fetch_add(1, std::memory_order_relaxed);
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}
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}
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}
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