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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
/*
* Ceph - scalable distributed file system
*
* Copyright (C) 2011 New Dream Network
*
* This is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software
* Foundation. See file COPYING.
*
*/
#include "common/histogram.h"
#include "common/Formatter.h"
// -- pow2_hist_t --
void pow2_hist_t::dump(ceph::Formatter *f) const
{
f->open_array_section("histogram");
for (std::vector<int32_t>::const_iterator p = h.begin(); p != h.end(); ++p)
f->dump_int("count", *p);
f->close_section();
f->dump_int("upper_bound", upper_bound());
}
void pow2_hist_t::encode(ceph::buffer::list& bl) const
{
ENCODE_START(1, 1, bl);
encode(h, bl);
ENCODE_FINISH(bl);
}
void pow2_hist_t::decode(ceph::buffer::list::const_iterator& p)
{
DECODE_START(1, p);
decode(h, p);
DECODE_FINISH(p);
}
void pow2_hist_t::generate_test_instances(std::list<pow2_hist_t*>& ls)
{
ls.push_back(new pow2_hist_t);
ls.push_back(new pow2_hist_t);
ls.back()->h.push_back(1);
ls.back()->h.push_back(3);
ls.back()->h.push_back(0);
ls.back()->h.push_back(2);
}
void pow2_hist_t::decay(int bits)
{
for (std::vector<int32_t>::iterator p = h.begin(); p != h.end(); ++p) {
*p >>= bits;
}
_contract();
}
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