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42 lines
1.8 KiB
C
42 lines
1.8 KiB
C
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// Copyright (c) 2019 The Bitcoin Core developers
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// Distributed under the MIT software license, see the accompanying
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// file COPYING or http://www.opensource.org/licenses/mit-license.php.
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#ifndef BITCOIN_UTIL_CHECK_H
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#define BITCOIN_UTIL_CHECK_H
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#include <tinyformat.h>
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#include <stdexcept>
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class NonFatalCheckError : public std::runtime_error
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{
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using std::runtime_error::runtime_error;
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};
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/**
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* Throw a NonFatalCheckError when the condition evaluates to false
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*
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* This should only be used
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* - where the condition is assumed to be true, not for error handling or validating user input
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* - where a failure to fulfill the condition is recoverable and does not abort the program
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*
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* For example in RPC code, where it is undersirable to crash the whole program, this can be generally used to replace
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* asserts or recoverable logic errors. A NonFatalCheckError in RPC code is caught and passed as a string to the RPC
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* caller, which can then report the issue to the developers.
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*/
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#define CHECK_NONFATAL(condition) \
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do { \
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if (!(condition)) { \
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throw NonFatalCheckError( \
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strprintf("%s:%d (%s)\n" \
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"Internal bug detected: '%s'\n" \
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"You may report this issue here: %s\n", \
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__FILE__, __LINE__, __func__, \
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(#condition), \
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PACKAGE_BUGREPORT)); \
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} \
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} while (false)
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#endif // BITCOIN_UTIL_CHECK_H
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