mirror of https://github.com/apache/activemq.git
65 lines
1.6 KiB
C++
65 lines
1.6 KiB
C++
/*
|
|
Licensed to the Apache Software Foundation (ASF) under one
|
|
or more contributor license agreements. See the NOTICE file
|
|
distributed with this work for additional information
|
|
regarding copyright ownership. The ASF licenses this file
|
|
to you under the Apache License, Version 2.0 (the
|
|
"License"); you may not use this file except in compliance
|
|
with the License. You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing,
|
|
software distributed under the License is distributed on an
|
|
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
|
|
KIND, either express or implied. See the License for the
|
|
specific language governing permissions and limitations
|
|
under the License.
|
|
*/
|
|
|
|
#include <unistd.h>
|
|
#include <time.h>
|
|
#include <sys/time.h>
|
|
#include <stdlib.h>
|
|
#include <sstream>
|
|
|
|
#include "UUIDGenerator.h"
|
|
|
|
using ActiveMQ::UUIDGenerator;
|
|
using namespace std;
|
|
|
|
UUIDGenerator::UUIDGenerator() {
|
|
char localHostName[64];
|
|
gethostname(localHostName, sizeof(localHostName));
|
|
hostname_.assign(localHostName);
|
|
srand(time(NULL));
|
|
}
|
|
|
|
string
|
|
UUIDGenerator::getGuid() const {
|
|
string ret(hostname_);
|
|
ret += ":";
|
|
ret += timestamp();
|
|
ret += ":";
|
|
ret += rand();
|
|
return ret;
|
|
}
|
|
|
|
string
|
|
UUIDGenerator::timestamp() const {
|
|
struct timeval tv;
|
|
gettimeofday(&tv, NULL);
|
|
stringstream ret;
|
|
ret << tv.tv_sec;
|
|
ret << ".";
|
|
ret << tv.tv_usec;
|
|
return ret.str();
|
|
}
|
|
|
|
string
|
|
UUIDGenerator::rand() const {
|
|
stringstream ret;
|
|
ret << ::rand();
|
|
return ret.str();
|
|
}
|