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boinc/client/hostinfo_unix.C

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// The contents of this file are subject to the Mozilla Public License
// Version 1.0 (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.mozilla.org/MPL/
//
// Software distributed under the License is distributed on an "AS IS"
// basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
// License for the specific language governing rights and limitations
// under the License.
//
// The Original Code is the Berkeley Open Infrastructure for Network Computing.
//
// The Initial Developer of the Original Code is the SETI@home project.
// Portions created by the SETI@home project are Copyright (C) 2002
// University of California at Berkeley. All Rights Reserved.
//
// Contributor(s):
//
#include "windows_cpp.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <sys/param.h>
#if HAVE_SYS_TYPES_H
#include <sys/types.h>
#endif
#ifdef HAVE_SYS_MOUNT_H
#include <sys/mount.h>
#endif
#ifdef HAVE_SYS_STATVFS_H
#include <sys/statvfs.h>
#endif
#ifdef HAVE_SYS_VFS_H
#include <sys/vfs.h>
#endif
#ifdef HAVE_SYS_VMMETER_H
#include <sys/vmmeter.h>
#endif
#ifdef HAVE_SYS_STATVFS_H
#define STATFS statvfs
#else
#define STATFS statfs
#endif
#include <sys/stat.h>
#if HAVE_SYS_SWAP_H
#include <sys/swap.h>
#endif
#ifdef _WIN32
#include <afxwin.h>
#include <winsock.h>
#endif
#if HAVE_SYS_SYSCTL_H
#include <sys/sysctl.h>
#endif
#if HAVE_SYS_SYSTEMINFO_H
#include <sys/systeminfo.h>
#endif
#if HAVE_SYS_UTSNAME_H
#include <sys/utsname.h>
#endif
#if HAVE_UNISTD_H
#include <unistd.h>
#endif
#if HAVE_NETINET_IN_H
#include <netinet/in.h>
#endif
#include "client_types.h"
#include "error_numbers.h"
// functions to get name/addr of local host
// Converts a int ip address to a string representation (i.e. "66.218.71.198")
//
#if 0
char* ip_addr_string(int ip_addr) {
in_addr ia;
ia.s_addr = ip_addr;
return inet_ntoa(ia);
}
#endif
// Returns the number of seconds difference from UTC
//
int get_timezone( void ) {
tzset();
// TODO: get this to work on all platforms
// TODO: take daylight savings time into account
#ifdef HAVE_GMTOFF
time_t cur_time;
struct tm *time_data;
cur_time = time(NULL);
time_data = localtime( &cur_time );
return time_data->tm_gmtoff;
#else
#ifdef __timezone
return __timezone;
#else
return timezone;
#endif
#endif
return 0;
}
// Returns true if the host is currently running off battery power
// TODO: port this to other platforms (Windows, Mac OS X, others?)
//
bool host_is_running_on_batteries() {
float x1, x2;
int i1, i2;
// the following only works on Linux.
// Need to find something else for other systems
//
FILE* f = fopen("/proc/apm", "r");
if (!f) return false;
// Supposedly we're on batteries if the 4th entry is zero.
//
fscanf(f, "%f %f %x %x", &x1, &x2, &i1, &i2);
fclose(f);
return (i2 == 0);
}
#ifdef linux
// Determine the memory specifications for this host, including RAM and swap space
//
void parse_meminfo(HOST_INFO& host) {
char buf[256];
FILE* f = fopen("/proc/meminfo", "r");
if (!f) return;
while (fgets(buf, 256, f)) {
if (strstr(buf, "Mem:") == buf) {
sscanf(buf, "Mem: %lf", &host.m_nbytes);
}
if (strstr(buf, "Swap:") == buf) {
sscanf(buf, "Swap: %lf", &host.m_swap);
}
}
fclose(f);
}
// Unfortunately the format of /proc/cpuinfo is not standardized.
// See http://people.nl.linux.org/~hch/cpuinfo/ for some examples.
// The following is for Redhat Linux 2.2.14.
// TODO: get this to work on all platforms
void parse_cpuinfo(HOST_INFO& host) {
char buf[256];
int n;
FILE* f = fopen("/proc/cpuinfo", "r");
if (!f) return;
host.p_ncpus = 1;
while (fgets(buf, 256, f)) {
if (strstr(buf, "vendor_id\t: ") == buf) {
sscanf(buf, "vendor_id\t: %s", host.p_vendor);
}
if (strstr(buf, "model name\t: ") == buf) {
sscanf(buf, "model name\t: %s", host.p_model);
}
if (strstr(buf, "cache size\t: ") == buf) {
sscanf(buf, "cache size\t: %d", &n);
host.m_cache = n*1024;
}
}
fclose(f);
}
#endif
#if HAVE_SYS_UTSNAME_H
// Puts the operating system name and version into the HOST_INFO structure
//
void get_osinfo(HOST_INFO& host) {
struct utsname u;
uname(&u);
strcpy(host.os_name, u.sysname);
strcpy(host.os_version, u.release);
}
#endif
// Returns total and free space on current disk (in bytes)
//
void get_host_disk_info( double &total_space, double &free_space ) {
#ifdef STATFS
struct STATFS fs_info;
STATFS(".", &fs_info);
total_space = (double)fs_info.f_bsize * (double)fs_info.f_blocks;
free_space = (double)fs_info.f_bsize * (double)fs_info.f_bavail;
#endif
}
// General function to get all relevant host information
//
int get_host_info(HOST_INFO& host) {
get_host_disk_info( host.d_total, host.d_free );
#if HAVE_SYS_SYSTEMINFO_H
char buf[256];
int i, n;
sysinfo(SI_SYSNAME, host.os_name, sizeof(host.os_name));
sysinfo(SI_RELEASE, host.os_version, sizeof(host.os_version));
sysinfo(SI_HW_SERIAL, host.serialnum, sizeof(host.serialnum));
host.p_ncpus = sysconf(_SC_NPROCESSORS_ONLN);
/* There can be a variety of methods to obtain amount of
* usable memory. You will have to check your sysconf()
* defines, probably in unistd.h
* - 2002-11-03 hiram@users.sourceforge.net
*/
#if defined(_SC_USEABLE_MEMORY)
host.m_nbytes = (double)sysconf(_SC_PAGESIZE)
* (double)sysconf(_SC_USEABLE_MEMORY); /* UnixWare */
#elif defined(_SC_PHYS_PAGES)
host.m_nbytes = (double)sysconf(_SC_PAGESIZE)
* (double)sysconf(_SC_PHYS_PAGES); /* Linux */
#else
#error Need to specify a sysconf() define to obtain memory size
#endif
swaptbl_t* s;
n = swapctl(SC_GETNSWP, 0);
s = (swaptbl_t*)malloc(n*sizeof(swapent_t) + sizeof(struct swaptable));
for (i=0; i<n; i++) {
s->swt_ent[i].ste_path = buf;
}
s->swt_n = n;
n = swapctl(SC_LIST, s);
for (i=0; i<n; i++) {
host.m_swap += 512.*(double)s->swt_ent[i].ste_length;
}
#endif
#if HAVE_SYS_SYSCTL_H
int mib[2], mem_size;
size_t len;
vmtotal vm_info;
// Get number of CPUs
mib[0] = CTL_HW;
mib[1] = HW_NCPU;
len = sizeof(host.p_ncpus);
sysctl(mib, 2, &host.p_ncpus, &len, NULL, 0);
// Get machine
mib[0] = CTL_HW;
mib[1] = HW_MACHINE;
len = sizeof(host.p_vendor);
sysctl(mib, 2, &host.p_vendor, &len, NULL, 0);
// Get model
mib[0] = CTL_HW;
mib[1] = HW_MODEL;
len = sizeof(host.p_model);
sysctl(mib, 2, &host.p_model, &len, NULL, 0);
// Get physical memory size
mib[0] = CTL_HW;
mib[1] = HW_PHYSMEM;
len = sizeof(mem_size);
sysctl(mib, 2, &mem_size, &len, NULL, 0);
host.m_nbytes = mem_size;
// Get operating system name
mib[0] = CTL_KERN;
mib[1] = KERN_OSTYPE;
len = sizeof(host.os_name);
sysctl(mib, 2, &host.os_name, &len, NULL, 0);
// Get operating system version
mib[0] = CTL_KERN;
mib[1] = KERN_OSRELEASE;
len = sizeof(host.os_version);
sysctl(mib, 2, &host.os_version, &len, NULL, 0);
// TODO: Get virtual memory info
/*mib[0] = CTL_VM;
mib[1] = VM_METER;
len = sizeof(vm_info);
sysctl(mib, 2, &vm_info, &len, NULL, 0);
host.m_swap = vm_info.t_vm;*/
#endif
#ifdef linux
parse_cpuinfo(host);
parse_meminfo(host);
#endif
get_local_domain_name(host.domain_name);
get_local_ip_addr_str(host.ip_addr);
host.timezone = get_timezone();
#ifdef HAVE_SYS_UTSNAME_H
get_osinfo(host);
#endif
return 0;
}
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