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// Copyright (c) 2009-2021 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#ifndef BITCOIN_TEST_FUZZ_FUZZ_H
#define BITCOIN_TEST_FUZZ_FUZZ_H
#include <span.h>
#include <cstdint>
#include <functional>
#include <string_view>
/**
* Can be used to limit a theoretically unbounded loop. This caps the runtime
* to avoid timeouts or OOMs.
*/
#define LIMITED_WHILE(condition, limit) \
for (unsigned _count{limit}; (condition) && _count; --_count)
using FuzzBufferType = Span<const uint8_t>;
using TypeTestOneInput = std::function<void(FuzzBufferType)>;
using TypeInitialize = std::function<void()>;
using TypeHidden = bool;
void FuzzFrameworkRegisterTarget(std::string_view name, TypeTestOneInput target, TypeInitialize init, TypeHidden hidden);
inline void FuzzFrameworkEmptyInitFun() {}
#define FUZZ_TARGET(name) \
FUZZ_TARGET_INIT(name, FuzzFrameworkEmptyInitFun)
#define FUZZ_TARGET_INIT(name, init_fun) \
FUZZ_TARGET_INIT_HIDDEN(name, init_fun, false)
#define FUZZ_TARGET_INIT_HIDDEN(name, init_fun, hidden) \
void name##_fuzz_target(FuzzBufferType); \
struct name##_Before_Main { \
name##_Before_Main() \
{ \
FuzzFrameworkRegisterTarget(#name, name##_fuzz_target, init_fun, hidden); \
} \
} const static g_##name##_before_main; \
void name##_fuzz_target(FuzzBufferType buffer)
#endif // BITCOIN_TEST_FUZZ_FUZZ_H
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