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/*
* 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 "qpid/sys/SystemInfo.h"
#include <sys/ioctl.h>
#include <sys/utsname.h>
#include <net/if.h>
#include <unistd.h>
#include <arpa/inet.h>
#include <stdio.h>
#include <unistd.h>
#include <iostream>
#include <fstream>
#include <sstream>
#ifndef HOST_NAME_MAX
# define HOST_NAME_MAX 256
#endif
using namespace std;
namespace qpid {
namespace sys {
long SystemInfo::concurrency() {
#ifdef _SC_NPROCESSORS_ONLN // Linux specific.
return sysconf(_SC_NPROCESSORS_ONLN);
#else
return -1;
#endif
}
bool SystemInfo::getLocalHostname (TcpAddress &address) {
char name[HOST_NAME_MAX];
if (::gethostname(name, sizeof(name)) != 0)
return false;
address.host = name;
return true;
}
static const string LOCALHOST("127.0.0.1");
void SystemInfo::getLocalIpAddresses (uint16_t port,
std::vector<Address> &addrList) {
int s = socket (PF_INET, SOCK_STREAM, 0);
for (int i=1;;i++) {
struct ifreq ifr;
ifr.ifr_ifindex = i;
if (::ioctl (s, SIOCGIFNAME, &ifr) < 0)
break;
/* now ifr.ifr_name is set */
if (::ioctl (s, SIOCGIFADDR, &ifr) < 0)
continue;
struct sockaddr_in *sin = (struct sockaddr_in *) &ifr.ifr_addr;
string addr(inet_ntoa(sin->sin_addr));
if (addr != LOCALHOST)
addrList.push_back(TcpAddress(addr, port));
}
if (addrList.empty()) {
addrList.push_back(TcpAddress(LOCALHOST, port));
}
close (s);
}
void SystemInfo::getSystemId (std::string &osName,
std::string &nodeName,
std::string &release,
std::string &version,
std::string &machine)
{
struct utsname _uname;
if (uname (&_uname) == 0)
{
osName = _uname.sysname;
nodeName = _uname.nodename;
release = _uname.release;
version = _uname.version;
machine = _uname.machine;
}
}
uint32_t SystemInfo::getProcessId()
{
return (uint32_t) ::getpid();
}
uint32_t SystemInfo::getParentProcessId()
{
return (uint32_t) ::getppid();
}
// Linux specific (Solaris has quite different stuff in /proc)
string SystemInfo::getProcessName()
{
string value;
ifstream input("/proc/self/status");
if (input.good()) {
while (!input.eof()) {
string key;
input >> key;
if (key == "Name:") {
input >> value;
break;
}
}
input.close();
}
return value;
}
}} // namespace qpid::sys
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