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/* Copyright 2009 10gen Inc.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License, version 3,
* as published by the Free Software Foundation.
*
* 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* As a special exception, the copyright holders give permission to link the
* code of portions of this program with the OpenSSL library under certain
* conditions as described in each individual source file and distribute
* linked combinations including the program with the OpenSSL library. You
* must comply with the GNU Affero General Public License in all respects
* for all of the code used other than as permitted herein. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you do not
* wish to do so, delete this exception statement from your version. If you
* delete this exception statement from all source files in the program,
* then also delete it in the license file.
*/
#include "mongo/bson/timestamp.h"
#include <cstring>
#include <ctime>
#include <iostream>
#include <limits>
#include <sstream>
#include "mongo/bson/bsontypes.h"
#include "mongo/platform/cstdint.h"
#include "mongo/util/time_support.h"
namespace mongo {
Timestamp Timestamp::max() {
unsigned int t = static_cast<unsigned int>(std::numeric_limits<int32_t>::max());
unsigned int i = std::numeric_limits<uint32_t>::max();
return Timestamp(t, i);
}
void Timestamp::append(BufBuilder& builder, const StringData& fieldName) const {
// No endian conversions needed, since we store in-memory representation
// in little endian format, regardless of target endian.
builder.appendNum( static_cast<char>(bsonTimestamp) );
builder.appendStr( fieldName );
builder.appendBuf(&_data, sizeof(_data));
}
const void* Timestamp::readFrom(const void* bytes) {
// No endian conversions needed, since we store in-memory representation
// in little endian format, regardless of target endian.
std::memcpy(&_data, bytes, sizeof(_data));
return reinterpret_cast<const char*>(bytes) + sizeof(_data);
}
std::string Timestamp::toStringLong() const {
std::stringstream ss;
ss << time_t_to_String_short(getSecs()) << ' ';
ss << std::hex << getSecs() << ':' << getInc();
return ss.str();
}
std::string Timestamp::toStringPretty() const {
std::stringstream ss;
ss << time_t_to_String_short(getSecs()) << ':' << std::hex << getInc();
return ss.str();
}
std::string Timestamp::toString() const {
std::stringstream ss;
ss << std::hex << getSecs() << ':' << getInc();
return ss.str();
}
}
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