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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"
#define BSD_COMP
#include <sys/ioctl.h>
#include <netdb.h>
#undef BDS_COMP
#include <unistd.h>
#include <net/if.h>
#include <sys/types.h>
#include <sys/utsname.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <stdio.h>
#include <errno.h>
#include <limits.h>
#include <procfs.h>
#include <fcntl.h>
#include <sys/types.h>
using namespace std;
namespace qpid {
namespace sys {
long SystemInfo::concurrency() {
return sysconf(_SC_NPROCESSORS_ONLN);
}
bool SystemInfo::getLocalHostname(Address &address) {
char name[MAXHOSTNAMELEN];
if (::gethostname(name, sizeof(name)) != 0)
return false;
address.host = name;
return true;
}
static const string LOCALHOST("127.0.0.1");
static const string TCP("tcp");
void SystemInfo::getLocalIpAddresses(uint16_t port,
std::vector<Address> &addrList) {
int s = socket(PF_INET, SOCK_STREAM, 0);
for (int i=1;;i++) {
struct lifreq ifr;
ifr.lifr_index = i;
if (::ioctl(s, SIOCGIFADDR, &ifr) < 0) {
break;
}
struct sockaddr_in *sin = (struct sockaddr_in *) &ifr.lifr_addr;
std::string addr(inet_ntoa(sin->sin_addr));
if (addr != LOCALHOST)
addrList.push_back(Address(TCP, addr, port));
}
if (addrList.empty()) {
addrList.push_back(Address(TCP, 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();
}
string SystemInfo::getProcessName()
{
psinfo processInfo;
char procfile[PATH_MAX];
int fd;
string value;
snprintf(procfile, PATH_MAX, "/proc/%d/psinfo", getProcessId());
if ((fd = open(procfile, O_RDONLY)) >= 0) {
if (read(fd, (void *) &processInfo, sizeof(processInfo)) == sizeof(processInfo)) {
value = processInfo.pr_fname;
}
}
return value;
}
}} // namespace qpid::sys
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