chore(fortuna): add random_data() checks, batch 1
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d907c9db6e
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19
fortuna.cpp
19
fortuna.cpp
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@ -16,6 +16,9 @@
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namespace fortuna {
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static constexpr const unsigned int min_pool_size{64};
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Fortuna::Fortuna() {
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try {
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initialize_prng();
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@ -28,7 +31,19 @@ namespace fortuna {
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auto Fortuna::random_data(unsigned int n_bytes) -> void {
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const auto start{std::chrono::system_clock::now()};
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fmt::print("random_data starting - {}\n", start);
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incr_reseed_ctr();
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auto now{std::chrono::steady_clock::now()};
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auto elapsed{
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std::chrono::duration_cast<std::chrono::milliseconds>(
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std::chrono::steady_clock::now().time_since_epoch() -
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now.time_since_epoch()
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)
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};
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fmt::print("last_reseed: {} ago\n", elapsed);
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if (sizeof(R.pools[0]) >= min_pool_size && elapsed > R.Gen.reseed_interval) {
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// TODO(me): call to generate_random_data will be moved here
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incr_reseed_ctr();
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}
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R.last_reseed = std::chrono::steady_clock::now();
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std::string n{R.Gen.generate_random_data(n_bytes)};
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fmt::print("got you {} proper bytes from generate_random_data -> {}\n",
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@ -39,6 +54,8 @@ namespace fortuna {
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std::chrono::duration<float> diff = end-start;
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fmt::print("random_data done - {}\n", end);
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fmt::print("getting random data took {:.{}f}s\n", diff.count(), 12);
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// TODO(me): eventually call reseed here
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// R.Gen.reseed("");
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} //random_data
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} // namespace fortuna
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@ -6,6 +6,8 @@
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#include <fmt/core.h>
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#include <chrono>
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namespace fortuna {
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class Fortuna {
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@ -66,6 +68,8 @@ public:
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unsigned __int128 reseed_ctr;
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#pragma GCC diagnostic pop
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accumulator::Pool pools[num_of_pools];
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std::chrono::steady_clock::time_point last_reseed;
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}; // class R_state
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fortuna::Fortuna::R_state R;
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@ -11,6 +11,8 @@ namespace generator {
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class Generator {
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public:
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std::chrono::milliseconds reseed_interval{100};
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Generator(); // ad noexcept: perhaps _do_ throw*
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~Generator() noexcept;
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