Files
scylladb/gms/generation-number.cc
Avi Kivity f3eade2f62 treewide: relicense to ScyllaDB-Source-Available-1.0
Drop the AGPL license in favor of a source-available license.
See the blog post [1] for details.

[1] https://www.scylladb.com/2024/12/18/why-were-moving-to-a-source-available-license/
2024-12-18 17:45:13 +02:00

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/*
* Copyright 2020-present ScyllaDB
*/
/*
* SPDX-License-Identifier: LicenseRef-ScyllaDB-Source-Available-1.0
*/
#include "utils/assert.hh"
#include <cassert>
#include <chrono>
#include <utility>
#include <fmt/format.h>
#include "generation-number.hh"
namespace gms {
generation_type get_generation_number() {
using namespace std::chrono;
auto now = high_resolution_clock::now().time_since_epoch();
int generation_number = duration_cast<seconds>(now).count();
auto ret = generation_type(generation_number);
// Make sure the clock didn't overflow the 32 bits value
SCYLLA_ASSERT(ret.value() == generation_number);
return ret;
}
void validate_gossip_generation(int64_t generation_number) {
if (!std::in_range<gms::generation_type::value_type>(generation_number)) {
throw std::out_of_range(fmt::format("gossip generation {} is out of range", generation_number));
}
}
}