36 lines
1.2 KiB
C++
36 lines
1.2 KiB
C++
#pragma once
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#ifndef MESSMER_CPPUTILS_DATA_THREADSAFEPSEUDORANDOMPOOL_H
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#define MESSMER_CPPUTILS_DATA_THREADSAFEPSEUDORANDOMPOOL_H
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#include "../macros.h"
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namespace cpputils {
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//TODO Create more complete random library around CryptoPP (also offering OS_Random for example) and use it in FixedSizeDate::CreateRandom()/CreateOSRandom()
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//TODO Store a static CryptoPP::AutoSeededRandomPool (or multiple ones) and make constructor of
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// ThreadsafeRandomPool() be lightweight (i.e. not do seeding), so it can be called on each callsite.
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// Alternatively, use a singleton factory.
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//TODO Test
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class ThreadsafePseudoRandomPool {
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public:
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ThreadsafePseudoRandomPool() { }
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void GenerateBlock(byte *data, size_t size) {
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// TODO Provide multiple randomPools for parallelity instead of locking the only available one
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std::unique_lock <std::mutex> lock(_mutex);
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_pool.GenerateBlock(data, size);
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}
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private:
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//TODO Make seeding use blocking=true (aka /dev/random instead of /dev/urandom) or offer a configuration option?
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CryptoPP::AutoSeededRandomPool _pool;
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std::mutex _mutex;
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DISALLOW_COPY_AND_ASSIGN(ThreadsafePseudoRandomPool);
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};
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}
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#endif
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