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41 lines
1.1 KiB
C++
41 lines
1.1 KiB
C++
// Copyright (c) 2023-present 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_TEST_UTIL_RANDOM_H
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#define BITCOIN_TEST_UTIL_RANDOM_H
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#include <consensus/amount.h>
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#include <random.h>
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#include <uint256.h>
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#include <atomic>
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#include <cstdint>
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enum class SeedRand {
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/**
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* Seed with a compile time constant of zeros.
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*/
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ZEROS,
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/**
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* Seed with a fixed value that never changes over the lifetime of this
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* process. The seed is read from the RANDOM_CTX_SEED environment variable
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* if set, otherwise generated randomly once, saved, and reused.
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*/
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FIXED_SEED,
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};
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/** Seed the global RNG state for testing and log the seed value. This affects all randomness, except GetStrongRandBytes(). */
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void SeedRandomStateForTest(SeedRand seed);
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extern std::atomic<bool> g_seeded_g_prng_zero;
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extern std::atomic<bool> g_used_g_prng;
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template <RandomNumberGenerator Rng>
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inline CAmount RandMoney(Rng&& rng)
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{
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return CAmount{rng.randrange(MAX_MONEY + 1)};
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}
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#endif // BITCOIN_TEST_UTIL_RANDOM_H
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