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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include "nice.h"
#include <unistd.h>
#include <algorithm>
namespace vespalib {
namespace {
void set_nice_value(double how_nice) {
if (how_nice > 0.0) {
#ifndef __APPLE__
int now = nice(0);
int max = 19;
int max_inc = (max - now);
[[maybe_unused]] auto nice_result = nice(std::min(max_inc, int(how_nice * (max_inc + 1))));
#endif
}
}
}
Runnable::init_fun_t be_nice(Runnable::init_fun_t init, double how_nice) {
return [init,how_nice](Runnable &target) {
set_nice_value(how_nice);
return init(target);
};
}
} // namespace
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