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/*
* Copyright (C) 2001-2008 Jacek Sieka, arnetheduck on gmail point com
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef DCPLUSPLUS_DCPP_CID_H
#define DCPLUSPLUS_DCPP_CID_H
#include "Encoder.h"
#include "Util.h"
namespace dcpp {
class CID {
public:
enum { SIZE = 192 / 8 };
CID() { memset(cid, 0, sizeof(cid)); }
explicit CID(const uint8_t* data) { memcpy(cid, data, sizeof(cid)); }
explicit CID(const string& base32) { Encoder::fromBase32(base32.c_str(), cid, sizeof(cid)); }
bool operator==(const CID& rhs) const { return memcmp(cid, rhs.cid, sizeof(cid)) == 0; }
bool operator<(const CID& rhs) const { return memcmp(cid, rhs.cid, sizeof(cid)) < 0; }
string toBase32() const { return Encoder::toBase32(cid, sizeof(cid)); }
string& toBase32(string& tmp) const { return Encoder::toBase32(cid, sizeof(cid), tmp); }
size_t toHash() const { return *reinterpret_cast<const size_t*>(cid); }
const uint8_t* data() const { return cid; }
bool isZero() const { return find_if(cid, cid+SIZE, bind2nd(not_equal_to<uint8_t>(), 0)) == (cid+SIZE); }
static CID generate() {
uint8_t data[CID::SIZE];
for(size_t i = 0; i < sizeof(data); ++i) {
data[i] = (uint8_t)Util::rand();
}
return CID(data);
}
private:
uint8_t cid[SIZE];
};
} // namespace dcpp
namespace std { namespace tr1 {
template<>
struct hash<dcpp::CID> {
size_t operator()(const dcpp::CID& rhs) const {
return *reinterpret_cast<const size_t*>(rhs.data());
}
};
}
}
#endif // !defined(CID_H)
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