LCOV - code coverage report
Current view: directory - nsprpub/pr/src/misc - prsystem.c (source / functions) Found Hit Coverage
Test: app.info Lines: 57 36 63.2 %
Date: 2012-06-02 Functions: 6 4 66.7 %

       1                 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
       2                 : /* ***** BEGIN LICENSE BLOCK *****
       3                 :  * Version: MPL 1.1/GPL 2.0/LGPL 2.1
       4                 :  *
       5                 :  * The contents of this file are subject to the Mozilla Public License Version
       6                 :  * 1.1 (the "License"); you may not use this file except in compliance with
       7                 :  * the License. You may obtain a copy of the License at
       8                 :  * http://www.mozilla.org/MPL/
       9                 :  *
      10                 :  * Software distributed under the License is distributed on an "AS IS" basis,
      11                 :  * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
      12                 :  * for the specific language governing rights and limitations under the
      13                 :  * License.
      14                 :  *
      15                 :  * The Original Code is the Netscape Portable Runtime (NSPR).
      16                 :  *
      17                 :  * The Initial Developer of the Original Code is
      18                 :  * Netscape Communications Corporation.
      19                 :  * Portions created by the Initial Developer are Copyright (C) 1998-2000
      20                 :  * the Initial Developer. All Rights Reserved.
      21                 :  *
      22                 :  * Contributor(s):
      23                 :  *
      24                 :  * Alternatively, the contents of this file may be used under the terms of
      25                 :  * either the GNU General Public License Version 2 or later (the "GPL"), or
      26                 :  * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
      27                 :  * in which case the provisions of the GPL or the LGPL are applicable instead
      28                 :  * of those above. If you wish to allow use of your version of this file only
      29                 :  * under the terms of either the GPL or the LGPL, and not to allow others to
      30                 :  * use your version of this file under the terms of the MPL, indicate your
      31                 :  * decision by deleting the provisions above and replace them with the notice
      32                 :  * and other provisions required by the GPL or the LGPL. If you do not delete
      33                 :  * the provisions above, a recipient may use your version of this file under
      34                 :  * the terms of any one of the MPL, the GPL or the LGPL.
      35                 :  *
      36                 :  * ***** END LICENSE BLOCK ***** */
      37                 : 
      38                 : #include "primpl.h"
      39                 : #include "prsystem.h"
      40                 : #include "prprf.h"
      41                 : #include "prlong.h"
      42                 : 
      43                 : #if defined(BEOS)
      44                 : #include <kernel/OS.h>
      45                 : #endif
      46                 : 
      47                 : #if defined(OS2)
      48                 : #define INCL_DOS
      49                 : #define INCL_DOSMISC
      50                 : #include <os2.h>
      51                 : /* define the required constant if it is not already defined in the headers */
      52                 : #ifndef QSV_NUMPROCESSORS
      53                 : #define QSV_NUMPROCESSORS 26
      54                 : #endif
      55                 : #endif
      56                 : 
      57                 : /* BSD-derived systems use sysctl() to get the number of processors */
      58                 : #if defined(BSDI) || defined(FREEBSD) || defined(NETBSD) \
      59                 :     || defined(OPENBSD) || defined(DARWIN)
      60                 : #define _PR_HAVE_SYSCTL
      61                 : #include <sys/param.h>
      62                 : #include <sys/sysctl.h>
      63                 : #endif
      64                 : 
      65                 : #if defined(DARWIN)
      66                 : #include <mach/mach_init.h>
      67                 : #include <mach/mach_host.h>
      68                 : #endif
      69                 : 
      70                 : #if defined(HPUX)
      71                 : #include <sys/mpctl.h>
      72                 : #include <sys/pstat.h>
      73                 : #endif
      74                 : 
      75                 : #if defined(XP_UNIX)
      76                 : #include <unistd.h>
      77                 : #include <sys/utsname.h>
      78                 : #endif
      79                 : 
      80                 : #if defined(LINUX)
      81                 : #include <string.h>
      82                 : #include <ctype.h>
      83                 : #define MAX_LINE 512
      84                 : #endif
      85                 : 
      86                 : #if defined(AIX)
      87                 : #include <cf.h>
      88                 : #include <sys/cfgodm.h>
      89                 : #endif
      90                 : 
      91                 : #if defined(WIN32)
      92                 : /* This struct is not present in VC6 headers, so declare it here */
      93                 : typedef struct {
      94                 :     DWORD dwLength;
      95                 :     DWORD dwMemoryLoad;
      96                 :     DWORDLONG ullTotalPhys;
      97                 :     DWORDLONG ullAvailPhys;
      98                 :     DWORDLONG ullToalPageFile;
      99                 :     DWORDLONG ullAvailPageFile;
     100                 :     DWORDLONG ullTotalVirtual;
     101                 :     DWORDLONG ullAvailVirtual;
     102                 :     DWORDLONG ullAvailExtendedVirtual;
     103                 : } PR_MEMORYSTATUSEX;
     104                 : 
     105                 : /* Typedef for dynamic lookup of GlobalMemoryStatusEx(). */
     106                 : typedef BOOL (WINAPI *GlobalMemoryStatusExFn)(PR_MEMORYSTATUSEX *);
     107                 : #endif
     108                 : 
     109            1725 : PR_IMPLEMENT(char) PR_GetDirectorySeparator(void)
     110                 : {
     111            1725 :     return PR_DIRECTORY_SEPARATOR;
     112                 : }  /* PR_GetDirectorySeparator */
     113                 : 
     114                 : /*
     115                 : ** OBSOLETE -- the function name is misspelled.
     116                 : */
     117               0 : PR_IMPLEMENT(char) PR_GetDirectorySepartor(void)
     118                 : {
     119                 : #if defined(DEBUG)
     120                 :     static PRBool warn = PR_TRUE;
     121               0 :     if (warn) {
     122               0 :         warn = _PR_Obsolete("PR_GetDirectorySepartor()",
     123                 :                 "PR_GetDirectorySeparator()");
     124                 :     }
     125                 : #endif
     126               0 :     return PR_GetDirectorySeparator();
     127                 : }  /* PR_GetDirectorySepartor */
     128                 : 
     129               0 : PR_IMPLEMENT(char) PR_GetPathSeparator(void)
     130                 : {
     131               0 :     return PR_PATH_SEPARATOR;
     132                 : }  /* PR_GetPathSeparator */
     133                 : 
     134             920 : PR_IMPLEMENT(PRStatus) PR_GetSystemInfo(PRSysInfo cmd, char *buf, PRUint32 buflen)
     135                 : {
     136             920 :     PRUintn len = 0;
     137                 : 
     138             920 :     if (!_pr_initialized) _PR_ImplicitInitialization();
     139                 : 
     140             920 :     switch(cmd)
     141                 :     {
     142                 :       case PR_SI_HOSTNAME:
     143                 :       case PR_SI_HOSTNAME_UNTRUNCATED:
     144             230 :         if (PR_FAILURE == _PR_MD_GETHOSTNAME(buf, (PRUintn)buflen))
     145               0 :             return PR_FAILURE;
     146                 : 
     147             230 :         if (cmd == PR_SI_HOSTNAME_UNTRUNCATED)
     148               0 :             break;
     149                 :         /*
     150                 :          * On some platforms a system does not have a hostname and
     151                 :          * its IP address is returned instead.   The following code
     152                 :          * should be skipped on those platforms.
     153                 :          */
     154                 : #ifndef _PR_GET_HOST_ADDR_AS_NAME
     155                 :         /* Return the unqualified hostname */
     156            5520 :             while (buf[len] && (len < buflen)) {
     157            5290 :                 if (buf[len] == '.') {
     158             230 :                     buf[len] = '\0';
     159             230 :                     break;
     160                 :                 }
     161            5060 :                 len += 1;
     162                 :             }    
     163                 : #endif
     164             230 :          break;
     165                 : 
     166                 :       case PR_SI_SYSNAME:
     167                 :         /* Return the operating system name */
     168                 : #if defined(XP_UNIX) || defined(WIN32)
     169             230 :         if (PR_FAILURE == _PR_MD_GETSYSINFO(cmd, buf, (PRUintn)buflen))
     170               0 :             return PR_FAILURE;
     171                 : #else
     172                 :         (void)PR_snprintf(buf, buflen, _PR_SI_SYSNAME);
     173                 : #endif
     174             230 :         break;
     175                 : 
     176                 :       case PR_SI_RELEASE:
     177                 :         /* Return the version of the operating system */
     178                 : #if defined(XP_UNIX) || defined(WIN32)
     179             230 :         if (PR_FAILURE == _PR_MD_GETSYSINFO(cmd, buf, (PRUintn)buflen))
     180               0 :             return PR_FAILURE;
     181                 : #endif
     182                 : #if defined(XP_OS2)
     183                 :         {
     184                 :             ULONG os2ver[2] = {0};
     185                 :             DosQuerySysInfo(QSV_VERSION_MINOR, QSV_VERSION_REVISION,
     186                 :                             &os2ver, sizeof(os2ver));
     187                 :             /* Formatting for normal usage (2.11, 3.0, 4.0, 4.5); officially,
     188                 :                Warp 4 is version 2.40.00, WSeB 2.45.00 */
     189                 :             if (os2ver[0] < 30)
     190                 :               (void)PR_snprintf(buf, buflen, "%s%lu",
     191                 :                                 "2.", os2ver[0]);
     192                 :             else if (os2ver[0] < 45)
     193                 :               (void)PR_snprintf(buf, buflen, "%lu%s%lu",
     194                 :                                 os2ver[0]/10, ".", os2ver[1]);
     195                 :             else
     196                 :               (void)PR_snprintf(buf, buflen, "%.1f",
     197                 :                                 os2ver[0]/10.0);
     198                 :         }
     199                 : #endif /* OS2 */
     200             230 :         break;
     201                 : 
     202                 :       case PR_SI_ARCHITECTURE:
     203                 :         /* Return the architecture of the machine (ie. x86, mips, alpha, ...)*/
     204             230 :         (void)PR_snprintf(buf, buflen, _PR_SI_ARCHITECTURE);
     205             230 :         break;
     206                 :           default:
     207               0 :                         PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
     208               0 :                         return PR_FAILURE;
     209                 :     }
     210             920 :     return PR_SUCCESS;
     211                 : }
     212                 : 
     213                 : /*
     214                 : ** PR_GetNumberOfProcessors()
     215                 : ** 
     216                 : ** Implementation notes:
     217                 : **   Every platform does it a bit different.
     218                 : **     numCpus is the returned value.
     219                 : **   for each platform's "if defined" section
     220                 : **     declare your local variable
     221                 : **     do your thing, assign to numCpus
     222                 : **   order of the if defined()s may be important,
     223                 : **     especially for unix variants. Do platform
     224                 : **     specific implementations before XP_UNIX.
     225                 : ** 
     226                 : */
     227             230 : PR_IMPLEMENT(PRInt32) PR_GetNumberOfProcessors( void )
     228                 : {
     229                 :     PRInt32     numCpus;
     230                 : #if defined(WIN32)
     231                 :     SYSTEM_INFO     info;
     232                 : 
     233                 :     GetSystemInfo( &info );
     234                 :     numCpus = info.dwNumberOfProcessors;
     235                 : #elif defined(BEOS)
     236                 :     system_info sysInfo;
     237                 : 
     238                 :     get_system_info(&sysInfo);
     239                 :     numCpus = sysInfo.cpu_count;
     240                 : #elif defined(OS2)
     241                 :     DosQuerySysInfo( QSV_NUMPROCESSORS, QSV_NUMPROCESSORS, &numCpus, sizeof(numCpus));
     242                 : #elif defined(_PR_HAVE_SYSCTL)
     243                 :     int mib[2];
     244                 :     int rc;
     245                 :     size_t len = sizeof(numCpus);
     246                 : 
     247                 :     mib[0] = CTL_HW;
     248                 :     mib[1] = HW_NCPU;
     249                 :     rc = sysctl( mib, 2, &numCpus, &len, NULL, 0 );
     250                 :     if ( -1 == rc )  {
     251                 :         numCpus = -1; /* set to -1 for return value on error */
     252                 :         _PR_MD_MAP_DEFAULT_ERROR( _MD_ERRNO() );
     253                 :     }
     254                 : #elif defined(HPUX)
     255                 :     numCpus = mpctl( MPC_GETNUMSPUS, 0, 0 );
     256                 :     if ( numCpus < 1 )  {
     257                 :         numCpus = -1; /* set to -1 for return value on error */
     258                 :         _PR_MD_MAP_DEFAULT_ERROR( _MD_ERRNO() );
     259                 :     }
     260                 : #elif defined(IRIX)
     261                 :     numCpus = sysconf( _SC_NPROC_ONLN );
     262                 : #elif defined(RISCOS) || defined(SYMBIAN)
     263                 :     numCpus = 1;
     264                 : #elif defined(LINUX)
     265                 :     /* for the benefit of devices with advanced power-saving, that
     266                 :        actually hotplug their cpus in heavy load, try to figure out
     267                 :        the real number of CPUs */
     268                 :     char buf[MAX_LINE];
     269                 :     FILE *fin;
     270             230 :     const char *cpu_present = "/sys/devices/system/cpu/present";
     271                 :     size_t strsize;
     272             230 :     numCpus = 0;
     273             230 :     fin = fopen(cpu_present, "r");
     274             230 :     if (fin != NULL) {
     275               0 :         if (fgets(buf, MAX_LINE, fin) != NULL) {
     276                 :             /* check that the format is what we expect */
     277               0 :             if (buf[0] == '0') {
     278               0 :                 strsize = strlen(buf);
     279               0 :                 if (strsize == 1) {
     280                 :                     /* single core */
     281               0 :                     numCpus = 1;
     282               0 :                 } else if (strsize >= 3 && strsize <= 5) {
     283                 :                     /* should be of the form 0-999 */
     284                 :                     /* parse the part after the 0-, note count is 0-based */
     285               0 :                     if (buf[1] == '-' && isdigit(buf[2])) {
     286               0 :                         numCpus = 1 + atoi(buf + 2);
     287                 :                     }
     288                 :                 }
     289                 :             }
     290                 :         }
     291               0 :         fclose(fin);
     292                 :     }
     293                 :     /* if that fails, fall back to more standard methods */
     294             230 :     if (!numCpus) {
     295             230 :         numCpus = sysconf( _SC_NPROCESSORS_CONF );
     296                 :     }
     297                 : #elif defined(XP_UNIX)
     298                 :     numCpus = sysconf( _SC_NPROCESSORS_CONF );
     299                 : #else
     300                 : #error "An implementation is required"
     301                 : #endif
     302             230 :     return(numCpus);
     303                 : } /* end PR_GetNumberOfProcessors() */
     304                 : 
     305                 : /*
     306                 : ** PR_GetPhysicalMemorySize()
     307                 : ** 
     308                 : ** Implementation notes:
     309                 : **   Every platform does it a bit different.
     310                 : **     bytes is the returned value.
     311                 : **   for each platform's "if defined" section
     312                 : **     declare your local variable
     313                 : **     do your thing, assign to bytes.
     314                 : ** 
     315                 : */
     316            1725 : PR_IMPLEMENT(PRUint64) PR_GetPhysicalMemorySize(void)
     317                 : {
     318            1725 :     PRUint64 bytes = 0;
     319                 : 
     320                 : #if defined(LINUX) || defined(SOLARIS)
     321                 : 
     322            1725 :     long pageSize = sysconf(_SC_PAGESIZE);
     323            1725 :     long pageCount = sysconf(_SC_PHYS_PAGES);
     324            1725 :     if (pageSize >= 0 && pageCount >= 0)
     325            1725 :         bytes = (PRUint64) pageSize * pageCount;
     326                 : 
     327                 : #elif defined(NETBSD) || defined(OPENBSD)
     328                 : 
     329                 :     int mib[2];
     330                 :     int rc;
     331                 :     uint64_t memSize;
     332                 :     size_t len = sizeof(memSize);
     333                 : 
     334                 :     mib[0] = CTL_HW;
     335                 :     mib[1] = HW_PHYSMEM64;
     336                 :     rc = sysctl(mib, 2, &memSize, &len, NULL, 0);
     337                 :     if (-1 != rc)  {
     338                 :         bytes = memSize;
     339                 :     }
     340                 : 
     341                 : #elif defined(HPUX)
     342                 : 
     343                 :     struct pst_static info;
     344                 :     int result = pstat_getstatic(&info, sizeof(info), 1, 0);
     345                 :     if (result == 1)
     346                 :         bytes = (PRUint64) info.physical_memory * info.page_size;
     347                 : 
     348                 : #elif defined(DARWIN)
     349                 : 
     350                 :     struct host_basic_info hInfo;
     351                 :     mach_msg_type_number_t count = HOST_BASIC_INFO_COUNT;
     352                 : 
     353                 :     int result = host_info(mach_host_self(),
     354                 :                            HOST_BASIC_INFO,
     355                 :                            (host_info_t) &hInfo,
     356                 :                            &count);
     357                 :     if (result == KERN_SUCCESS)
     358                 :         bytes = hInfo.max_mem;
     359                 : 
     360                 : #elif defined(WIN32)
     361                 : 
     362                 :     /* Try to use the newer GlobalMemoryStatusEx API for Windows 2000+. */
     363                 :     GlobalMemoryStatusExFn globalMemory = (GlobalMemoryStatusExFn) NULL;
     364                 :     HMODULE module = GetModuleHandleW(L"kernel32.dll");
     365                 : 
     366                 :     if (module) {
     367                 :         globalMemory = (GlobalMemoryStatusExFn)GetProcAddress(module, "GlobalMemoryStatusEx");
     368                 : 
     369                 :         if (globalMemory) {
     370                 :             PR_MEMORYSTATUSEX memStat;
     371                 :             memStat.dwLength = sizeof(memStat);
     372                 : 
     373                 :             if (globalMemory(&memStat))
     374                 :                 bytes = memStat.ullTotalPhys;
     375                 :         }
     376                 :     }
     377                 : 
     378                 :     if (!bytes) {
     379                 :         /* Fall back to the older API. */
     380                 :         MEMORYSTATUS memStat;
     381                 :         memset(&memStat, 0, sizeof(memStat));
     382                 :         GlobalMemoryStatus(&memStat);
     383                 :         bytes = memStat.dwTotalPhys;
     384                 :     }
     385                 : 
     386                 : #elif defined(OS2)
     387                 : 
     388                 :     ULONG ulPhysMem;
     389                 :     DosQuerySysInfo(QSV_TOTPHYSMEM,
     390                 :                     QSV_TOTPHYSMEM,
     391                 :                     &ulPhysMem,
     392                 :                     sizeof(ulPhysMem));
     393                 :     bytes = ulPhysMem;
     394                 : 
     395                 : #elif defined(AIX)
     396                 : 
     397                 :     if (odm_initialize() == 0) {
     398                 :         int how_many;
     399                 :         struct CuAt *obj = getattr("sys0", "realmem", 0, &how_many);
     400                 :         if (obj != NULL) {
     401                 :             bytes = (PRUint64) atoi(obj->value) * 1024;
     402                 :             free(obj);
     403                 :         }
     404                 :         odm_terminate();
     405                 :     }
     406                 : 
     407                 : #else
     408                 : 
     409                 :     PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
     410                 : 
     411                 : #endif
     412                 : 
     413            1725 :     return bytes;
     414                 : } /* end PR_GetPhysicalMemorySize() */

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