36 lines
888 B
C++
36 lines
888 B
C++
#include "time_helpers.h"
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#include <chrono>
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#include <iostream>
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namespace BareMinimumCrypto {
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using namespace std;
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using namespace chrono;
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int64_t get_seconds_since_epoch () {
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const auto utc_now = system_clock::now ();
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return duration_cast <seconds> (utc_now.time_since_epoch ()).count ();
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}
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// Most tests will use a virtual clock. But just as a smoke test,
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// make sure real time is realistic.
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int test_time () {
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const auto seconds_since_epoch = get_seconds_since_epoch ();
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const auto time_of_writing = 1610844872;
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if (seconds_since_epoch < time_of_writing) {
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cerr << "Error: Real time is in the past." << endl;
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return 1;
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}
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const int64_t about_100_years = (int64_t)100 * 365 * 86400;
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if (seconds_since_epoch > time_of_writing + about_100_years) {
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cerr << "Error: Real time is in the far future." << endl;
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return 1;
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}
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return 0;
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}
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}
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