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// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
// vim: ts=8 sw=2 smarttab
#include "include/types.h"
#include "common/bloom_filter.hpp"
void bloom_filter::encode(bufferlist& bl) const
{
ENCODE_START(1, 1, bl);
::encode((uint64_t)salt_count_, bl);
::encode((uint64_t)table_size_, bl);
::encode((uint64_t)inserted_element_count_, bl);
::encode((uint64_t)random_seed_, bl);
bufferptr bp((const char*)bit_table_, raw_table_size_);
::encode(bp, bl);
ENCODE_FINISH(bl);
}
void bloom_filter::decode(bufferlist::iterator& p)
{
DECODE_START(1, p);
uint64_t v;
::decode(v, p);
salt_count_ = v;
::decode(v, p);
table_size_ = v;
::decode(v, p);
inserted_element_count_ = v;
::decode(v, p);
random_seed_ = v;
bufferlist t;
::decode(t, p);
salt_.clear();
generate_unique_salt();
raw_table_size_ = t.length();
assert(raw_table_size_ == table_size_ / bits_per_char);
delete bit_table_;
bit_table_ = new cell_type[raw_table_size_];
t.copy(0, raw_table_size_, (char *)bit_table_);
DECODE_FINISH(p);
}
void bloom_filter::dump(Formatter *f) const
{
f->dump_unsigned("salt_count", salt_count_);
f->dump_unsigned("table_size", table_size_);
f->dump_unsigned("raw_table_size", raw_table_size_);
f->dump_unsigned("insert_count", inserted_element_count_);
f->dump_unsigned("random_seed", random_seed_);
f->open_array_section("salt_table");
for (std::vector<bloom_type>::const_iterator i = salt_.begin(); i != salt_.end(); ++i)
f->dump_unsigned("salt", *i);
f->close_section();
f->open_array_section("bit_table");
for (unsigned i = 0; i < raw_table_size_; ++i)
f->dump_unsigned("byte", (unsigned)bit_table_[i]);
f->close_section();
}
void bloom_filter::generate_test_instances(list<bloom_filter*>& ls)
{
ls.push_back(new bloom_filter(10, .5, 1));
ls.push_back(new bloom_filter(10, .5, 1));
ls.back()->insert("foo");
ls.back()->insert("bar");
ls.push_back(new bloom_filter(50, .5, 1));
ls.back()->insert("foo");
ls.back()->insert("bar");
ls.back()->insert("baz");
ls.back()->insert("boof");
ls.back()->insert("boogggg");
}
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