Source code
Revision control
Copy as Markdown
Other Tools
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
#include "primpl.h"
#include "prsystem.h"
#include "prprf.h"
#include "prlong.h"
#if defined(OS2)
#define INCL_DOS
#define INCL_DOSMISC
#include <os2.h>
/* define the required constant if it is not already defined in the headers */
#ifndef QSV_NUMPROCESSORS
#define QSV_NUMPROCESSORS 26
#endif
#endif
/* BSD-derived systems use sysctl() to get the number of processors */
#if defined(BSDI) || defined(FREEBSD) || defined(NETBSD) \
|| defined(OPENBSD) || defined(DRAGONFLY) || defined(DARWIN)
#define _PR_HAVE_SYSCTL
#include <sys/param.h>
#include <sys/sysctl.h>
#endif
#if defined(DARWIN)
#include <mach/mach_init.h>
#include <mach/mach_host.h>
#include <mach/mach_port.h>
#endif
#if defined(HPUX)
#include <sys/mpctl.h>
#include <sys/pstat.h>
#endif
#if defined(XP_UNIX)
#include <unistd.h>
#include <sys/utsname.h>
#endif
#if defined(LINUX)
#include <string.h>
#include <ctype.h>
#define MAX_LINE 512
#endif
#if defined(AIX)
#include <cf.h>
#include <sys/cfgodm.h>
#endif
PR_IMPLEMENT(char) PR_GetDirectorySeparator(void)
{
return PR_DIRECTORY_SEPARATOR;
} /* PR_GetDirectorySeparator */
/*
** OBSOLETE -- the function name is misspelled.
*/
PR_IMPLEMENT(char) PR_GetDirectorySepartor(void)
{
#if defined(DEBUG)
static PRBool warn = PR_TRUE;
if (warn) {
warn = _PR_Obsolete("PR_GetDirectorySepartor()",
"PR_GetDirectorySeparator()");
}
#endif
return PR_GetDirectorySeparator();
} /* PR_GetDirectorySepartor */
PR_IMPLEMENT(char) PR_GetPathSeparator(void)
{
return PR_PATH_SEPARATOR;
} /* PR_GetPathSeparator */
PR_IMPLEMENT(PRStatus) PR_GetSystemInfo(PRSysInfo cmd, char *buf, PRUint32 buflen)
{
PRUintn len = 0;
if (!_pr_initialized) {
_PR_ImplicitInitialization();
}
switch(cmd)
{
case PR_SI_HOSTNAME:
case PR_SI_HOSTNAME_UNTRUNCATED:
if (PR_FAILURE == _PR_MD_GETHOSTNAME(buf, (PRUintn)buflen)) {
return PR_FAILURE;
}
if (cmd == PR_SI_HOSTNAME_UNTRUNCATED) {
break;
}
/*
* On some platforms a system does not have a hostname and
* its IP address is returned instead. The following code
* should be skipped on those platforms.
*/
#ifndef _PR_GET_HOST_ADDR_AS_NAME
/* Return the unqualified hostname */
while (buf[len] && (len < buflen)) {
if (buf[len] == '.') {
buf[len] = '\0';
break;
}
len += 1;
}
#endif
break;
case PR_SI_SYSNAME:
/* Return the operating system name */
#if defined(XP_UNIX) || defined(WIN32)
if (PR_FAILURE == _PR_MD_GETSYSINFO(cmd, buf, (PRUintn)buflen)) {
return PR_FAILURE;
}
#else
(void)PR_snprintf(buf, buflen, _PR_SI_SYSNAME);
#endif
break;
case PR_SI_RELEASE:
/* Return the version of the operating system */
#if defined(XP_UNIX) || defined(WIN32)
if (PR_FAILURE == _PR_MD_GETSYSINFO(cmd, buf, (PRUintn)buflen)) {
return PR_FAILURE;
}
#endif
#if defined(XP_OS2)
{
ULONG os2ver[2] = {0};
DosQuerySysInfo(QSV_VERSION_MINOR, QSV_VERSION_REVISION,
&os2ver, sizeof(os2ver));
/* Formatting for normal usage (2.11, 3.0, 4.0, 4.5); officially,
Warp 4 is version 2.40.00, WSeB 2.45.00 */
if (os2ver[0] < 30)
(void)PR_snprintf(buf, buflen, "%s%lu",
"2.", os2ver[0]);
else if (os2ver[0] < 45)
(void)PR_snprintf(buf, buflen, "%lu%s%lu",
os2ver[0]/10, ".", os2ver[1]);
else
(void)PR_snprintf(buf, buflen, "%.1f",
os2ver[0]/10.0);
}
#endif /* OS2 */
break;
case PR_SI_RELEASE_BUILD:
/* Return the version of the operating system */
#if defined(XP_UNIX) || defined(WIN32)
if (PR_FAILURE == _PR_MD_GETSYSINFO(cmd, buf, (PRUintn)buflen)) {
return PR_FAILURE;
}
#else
if (buflen) {
*buf = 0;
}
#endif /* XP_UNIX || WIN32 */
break;
case PR_SI_ARCHITECTURE:
/* Return the architecture of the machine (ie. x86, mips, alpha, ...)*/
(void)PR_snprintf(buf, buflen, _PR_SI_ARCHITECTURE);
break;
default:
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return PR_FAILURE;
}
return PR_SUCCESS;
}
/*
** PR_GetNumberOfProcessors()
**
** Implementation notes:
** Every platform does it a bit different.
** numCpus is the returned value.
** for each platform's "if defined" section
** declare your local variable
** do your thing, assign to numCpus
** order of the if defined()s may be important,
** especially for unix variants. Do platform
** specific implementations before XP_UNIX.
**
*/
PR_IMPLEMENT(PRInt32) PR_GetNumberOfProcessors( void )
{
PRInt32 numCpus;
#if defined(WIN32)
SYSTEM_INFO info;
GetSystemInfo( &info );
numCpus = info.dwNumberOfProcessors;
#elif defined(OS2)
DosQuerySysInfo( QSV_NUMPROCESSORS, QSV_NUMPROCESSORS, &numCpus, sizeof(numCpus));
#elif defined(_PR_HAVE_SYSCTL)
int mib[2];
int rc;
size_t len = sizeof(numCpus);
mib[0] = CTL_HW;
#ifdef HW_NCPUONLINE
mib[1] = HW_NCPUONLINE;
#else
mib[1] = HW_NCPU;
#endif
rc = sysctl( mib, 2, &numCpus, &len, NULL, 0 );
if ( -1 == rc ) {
numCpus = -1; /* set to -1 for return value on error */
_PR_MD_MAP_DEFAULT_ERROR( _MD_ERRNO() );
}
#elif defined(HPUX)
numCpus = mpctl( MPC_GETNUMSPUS, 0, 0 );
if ( numCpus < 1 ) {
numCpus = -1; /* set to -1 for return value on error */
_PR_MD_MAP_DEFAULT_ERROR( _MD_ERRNO() );
}
#elif defined(RISCOS)
numCpus = 1;
#elif defined(LINUX)
/* for the benefit of devices with advanced power-saving, that
actually hotplug their cpus in heavy load, try to figure out
the real number of CPUs */
char buf[MAX_LINE];
FILE *fin;
const char *cpu_present = "/sys/devices/system/cpu/present";
size_t strsize;
numCpus = 0;
fin = fopen(cpu_present, "r");
if (fin != NULL) {
if (fgets(buf, MAX_LINE, fin) != NULL) {
/* check that the format is what we expect */
if (buf[0] == '0') {
strsize = strlen(buf);
if (strsize == 1) {
/* single core */
numCpus = 1;
} else if (strsize >= 3 && strsize <= 5) {
/* should be of the form 0-999 */
/* parse the part after the 0-, note count is 0-based */
if (buf[1] == '-' && isdigit(buf[2])) {
numCpus = 1 + atoi(buf + 2);
}
}
}
}
fclose(fin);
}
/* if that fails, fall back to more standard methods */
if (!numCpus) {
numCpus = sysconf( _SC_NPROCESSORS_CONF );
}
#elif defined(XP_UNIX)
numCpus = sysconf( _SC_NPROCESSORS_CONF );
#else
#error "An implementation is required"
#endif
return(numCpus);
} /* end PR_GetNumberOfProcessors() */
/*
** PR_GetPhysicalMemorySize()
**
** Implementation notes:
** Every platform does it a bit different.
** bytes is the returned value.
** for each platform's "if defined" section
** declare your local variable
** do your thing, assign to bytes.
**
*/
PR_IMPLEMENT(PRUint64) PR_GetPhysicalMemorySize(void)
{
PRUint64 bytes = 0;
#if defined(LINUX) || defined(SOLARIS)
long pageSize = sysconf(_SC_PAGESIZE);
long pageCount = sysconf(_SC_PHYS_PAGES);
if (pageSize >= 0 && pageCount >= 0) {
bytes = (PRUint64) pageSize * pageCount;
}
#elif defined(NETBSD) || defined(OPENBSD) \
|| defined(FREEBSD) || defined(DRAGONFLY)
int mib[2];
int rc;
#ifdef HW_PHYSMEM64
uint64_t memSize;
#else
unsigned long memSize;
#endif
size_t len = sizeof(memSize);
mib[0] = CTL_HW;
#ifdef HW_PHYSMEM64
mib[1] = HW_PHYSMEM64;
#else
mib[1] = HW_PHYSMEM;
#endif
rc = sysctl(mib, 2, &memSize, &len, NULL, 0);
if (-1 != rc) {
bytes = memSize;
}
#elif defined(HPUX)
struct pst_static info;
int result = pstat_getstatic(&info, sizeof(info), 1, 0);
if (result == 1) {
bytes = (PRUint64) info.physical_memory * info.page_size;
}
#elif defined(DARWIN)
mach_port_t mach_host = mach_host_self();
struct host_basic_info hInfo;
mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
int result = host_info(mach_host,
HOST_BASIC_INFO,
(host_info_t) &hInfo,
&count);
mach_port_deallocate(mach_task_self(), mach_host);
if (result == KERN_SUCCESS) {
bytes = hInfo.max_mem;
}
#elif defined(WIN32)
MEMORYSTATUSEX memStat;
memStat.dwLength = sizeof(memStat);
if (GlobalMemoryStatusEx(&memStat)) {
bytes = memStat.ullTotalPhys;
}
#elif defined(OS2)
ULONG ulPhysMem;
DosQuerySysInfo(QSV_TOTPHYSMEM,
QSV_TOTPHYSMEM,
&ulPhysMem,
sizeof(ulPhysMem));
bytes = ulPhysMem;
#elif defined(AIX)
if (odm_initialize() == 0) {
int how_many;
struct CuAt *obj = getattr("sys0", "realmem", 0, &how_many);
if (obj != NULL) {
bytes = (PRUint64) atoi(obj->value) * 1024;
free(obj);
}
odm_terminate();
}
#else
PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
#endif
return bytes;
} /* end PR_GetPhysicalMemorySize() */