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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-7.1/] [libiberty/] [physmem.c] - Diff between revs 834 and 842

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/* Calculate the size of physical memory.
/* Calculate the size of physical memory.
   Copyright 2000, 2001, 2003, 2004, 2005 Free Software Foundation, Inc.
   Copyright 2000, 2001, 2003, 2004, 2005 Free Software Foundation, Inc.
 
 
   This program is free software; you can redistribute it and/or modify
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2, or (at your option)
   the Free Software Foundation; either version 2, or (at your option)
   any later version.
   any later version.
 
 
   This program is distributed in the hope that it will be useful,
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   GNU General Public License for more details.
 
 
   You should have received a copy of the GNU General Public License
   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software Foundation,
   along with this program; if not, write to the Free Software Foundation,
   Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
   Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
 
 
/* Written by Paul Eggert.  */
/* Written by Paul Eggert.  */
 
 
#if HAVE_CONFIG_H
#if HAVE_CONFIG_H
# include <config.h>
# include <config.h>
#endif
#endif
 
 
#if HAVE_UNISTD_H
#if HAVE_UNISTD_H
# include <unistd.h>
# include <unistd.h>
#endif
#endif
 
 
#if HAVE_SYS_PSTAT_H
#if HAVE_SYS_PSTAT_H
# include <sys/pstat.h>
# include <sys/pstat.h>
#endif
#endif
 
 
#if HAVE_SYS_SYSMP_H
#if HAVE_SYS_SYSMP_H
# include <sys/sysmp.h>
# include <sys/sysmp.h>
#endif
#endif
 
 
#if HAVE_SYS_SYSINFO_H && HAVE_MACHINE_HAL_SYSINFO_H
#if HAVE_SYS_SYSINFO_H && HAVE_MACHINE_HAL_SYSINFO_H
# include <sys/sysinfo.h>
# include <sys/sysinfo.h>
# include <machine/hal_sysinfo.h>
# include <machine/hal_sysinfo.h>
#endif
#endif
 
 
#if HAVE_SYS_TABLE_H
#if HAVE_SYS_TABLE_H
# include <sys/table.h>
# include <sys/table.h>
#endif
#endif
 
 
#include <sys/types.h>
#include <sys/types.h>
 
 
#if HAVE_SYS_PARAM_H
#if HAVE_SYS_PARAM_H
# include <sys/param.h>
# include <sys/param.h>
#endif
#endif
 
 
#if HAVE_SYS_SYSCTL_H
#if HAVE_SYS_SYSCTL_H
# include <sys/sysctl.h>
# include <sys/sysctl.h>
#endif
#endif
 
 
#if HAVE_SYS_SYSTEMCFG_H
#if HAVE_SYS_SYSTEMCFG_H
# include <sys/systemcfg.h>
# include <sys/systemcfg.h>
#endif
#endif
 
 
#ifdef _WIN32
#ifdef _WIN32
# define WIN32_LEAN_AND_MEAN
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
# include <windows.h>
/*  MEMORYSTATUSEX is missing from older windows headers, so define
/*  MEMORYSTATUSEX is missing from older windows headers, so define
    a local replacement.  */
    a local replacement.  */
typedef struct
typedef struct
{
{
  DWORD dwLength;
  DWORD dwLength;
  DWORD dwMemoryLoad;
  DWORD dwMemoryLoad;
  DWORDLONG ullTotalPhys;
  DWORDLONG ullTotalPhys;
  DWORDLONG ullAvailPhys;
  DWORDLONG ullAvailPhys;
  DWORDLONG ullTotalPageFile;
  DWORDLONG ullTotalPageFile;
  DWORDLONG ullAvailPageFile;
  DWORDLONG ullAvailPageFile;
  DWORDLONG ullTotalVirtual;
  DWORDLONG ullTotalVirtual;
  DWORDLONG ullAvailVirtual;
  DWORDLONG ullAvailVirtual;
  DWORDLONG ullAvailExtendedVirtual;
  DWORDLONG ullAvailExtendedVirtual;
} lMEMORYSTATUSEX;
} lMEMORYSTATUSEX;
typedef WINBOOL (WINAPI *PFN_MS_EX) (lMEMORYSTATUSEX*);
typedef WINBOOL (WINAPI *PFN_MS_EX) (lMEMORYSTATUSEX*);
#endif
#endif
 
 
#include "libiberty.h"
#include "libiberty.h"
 
 
/* Return the total amount of physical memory.  */
/* Return the total amount of physical memory.  */
double
double
physmem_total (void)
physmem_total (void)
{
{
#if defined _SC_PHYS_PAGES && defined _SC_PAGESIZE
#if defined _SC_PHYS_PAGES && defined _SC_PAGESIZE
  { /* This works on linux-gnu, solaris2 and cygwin.  */
  { /* This works on linux-gnu, solaris2 and cygwin.  */
    double pages = sysconf (_SC_PHYS_PAGES);
    double pages = sysconf (_SC_PHYS_PAGES);
    double pagesize = sysconf (_SC_PAGESIZE);
    double pagesize = sysconf (_SC_PAGESIZE);
    if (0 <= pages && 0 <= pagesize)
    if (0 <= pages && 0 <= pagesize)
      return pages * pagesize;
      return pages * pagesize;
  }
  }
#endif
#endif
 
 
#if HAVE_PSTAT_GETSTATIC
#if HAVE_PSTAT_GETSTATIC
  { /* This works on hpux11.  */
  { /* This works on hpux11.  */
    struct pst_static pss;
    struct pst_static pss;
    if (0 <= pstat_getstatic (&pss, sizeof pss, 1, 0))
    if (0 <= pstat_getstatic (&pss, sizeof pss, 1, 0))
      {
      {
        double pages = pss.physical_memory;
        double pages = pss.physical_memory;
        double pagesize = pss.page_size;
        double pagesize = pss.page_size;
        if (0 <= pages && 0 <= pagesize)
        if (0 <= pages && 0 <= pagesize)
          return pages * pagesize;
          return pages * pagesize;
      }
      }
  }
  }
#endif
#endif
 
 
#if HAVE_SYSMP && defined MP_SAGET && defined MPSA_RMINFO && defined _SC_PAGESIZE
#if HAVE_SYSMP && defined MP_SAGET && defined MPSA_RMINFO && defined _SC_PAGESIZE
  { /* This works on irix6. */
  { /* This works on irix6. */
    struct rminfo realmem;
    struct rminfo realmem;
    if (sysmp (MP_SAGET, MPSA_RMINFO, &realmem, sizeof realmem) == 0)
    if (sysmp (MP_SAGET, MPSA_RMINFO, &realmem, sizeof realmem) == 0)
      {
      {
        double pagesize = sysconf (_SC_PAGESIZE);
        double pagesize = sysconf (_SC_PAGESIZE);
        double pages = realmem.physmem;
        double pages = realmem.physmem;
        if (0 <= pages && 0 <= pagesize)
        if (0 <= pages && 0 <= pagesize)
          return pages * pagesize;
          return pages * pagesize;
      }
      }
  }
  }
#endif
#endif
 
 
#if HAVE_GETSYSINFO && defined GSI_PHYSMEM
#if HAVE_GETSYSINFO && defined GSI_PHYSMEM
  { /* This works on Tru64 UNIX V4/5.  */
  { /* This works on Tru64 UNIX V4/5.  */
    int physmem;
    int physmem;
 
 
    if (getsysinfo (GSI_PHYSMEM, (caddr_t) &physmem, sizeof (physmem),
    if (getsysinfo (GSI_PHYSMEM, (caddr_t) &physmem, sizeof (physmem),
                    NULL, NULL, NULL) == 1)
                    NULL, NULL, NULL) == 1)
      {
      {
        double kbytes = physmem;
        double kbytes = physmem;
 
 
        if (0 <= kbytes)
        if (0 <= kbytes)
          return kbytes * 1024.0;
          return kbytes * 1024.0;
      }
      }
  }
  }
#endif
#endif
 
 
#if HAVE_SYSCTL && defined HW_PHYSMEM
#if HAVE_SYSCTL && defined HW_PHYSMEM
  { /* This works on *bsd and darwin.  */
  { /* This works on *bsd and darwin.  */
    unsigned int physmem;
    unsigned int physmem;
    size_t len = sizeof physmem;
    size_t len = sizeof physmem;
    static int mib[2] = { CTL_HW, HW_PHYSMEM };
    static int mib[2] = { CTL_HW, HW_PHYSMEM };
 
 
    if (sysctl (mib, ARRAY_SIZE (mib), &physmem, &len, NULL, 0) == 0
    if (sysctl (mib, ARRAY_SIZE (mib), &physmem, &len, NULL, 0) == 0
        && len == sizeof (physmem))
        && len == sizeof (physmem))
      return (double) physmem;
      return (double) physmem;
  }
  }
#endif
#endif
 
 
#if HAVE__SYSTEM_CONFIGURATION
#if HAVE__SYSTEM_CONFIGURATION
  /* This works on AIX 4.3.3+.  */
  /* This works on AIX 4.3.3+.  */
  return _system_configuration.physmem;
  return _system_configuration.physmem;
#endif
#endif
 
 
#if defined _WIN32
#if defined _WIN32
  { /* this works on windows */
  { /* this works on windows */
    PFN_MS_EX pfnex;
    PFN_MS_EX pfnex;
    HMODULE h = GetModuleHandle ("kernel32.dll");
    HMODULE h = GetModuleHandle ("kernel32.dll");
 
 
    if (!h)
    if (!h)
      return 0.0;
      return 0.0;
 
 
    /*  Use GlobalMemoryStatusEx if available.  */
    /*  Use GlobalMemoryStatusEx if available.  */
    if ((pfnex = (PFN_MS_EX) GetProcAddress (h, "GlobalMemoryStatusEx")))
    if ((pfnex = (PFN_MS_EX) GetProcAddress (h, "GlobalMemoryStatusEx")))
      {
      {
        lMEMORYSTATUSEX lms_ex;
        lMEMORYSTATUSEX lms_ex;
        lms_ex.dwLength = sizeof lms_ex;
        lms_ex.dwLength = sizeof lms_ex;
        if (!pfnex (&lms_ex))
        if (!pfnex (&lms_ex))
          return 0.0;
          return 0.0;
        return (double) lms_ex.ullTotalPhys;
        return (double) lms_ex.ullTotalPhys;
      }
      }
 
 
    /*  Fall back to GlobalMemoryStatus which is always available.
    /*  Fall back to GlobalMemoryStatus which is always available.
        but returns wrong results for physical memory > 4GB.  */
        but returns wrong results for physical memory > 4GB.  */
    else
    else
      {
      {
        MEMORYSTATUS ms;
        MEMORYSTATUS ms;
        GlobalMemoryStatus (&ms);
        GlobalMemoryStatus (&ms);
        return (double) ms.dwTotalPhys;
        return (double) ms.dwTotalPhys;
      }
      }
  }
  }
#endif
#endif
 
 
  /* Return 0 if we can't determine the value.  */
  /* Return 0 if we can't determine the value.  */
  return 0;
  return 0;
}
}
 
 
/* Return the amount of physical memory available.  */
/* Return the amount of physical memory available.  */
double
double
physmem_available (void)
physmem_available (void)
{
{
#if defined _SC_AVPHYS_PAGES && defined _SC_PAGESIZE
#if defined _SC_AVPHYS_PAGES && defined _SC_PAGESIZE
  { /* This works on linux-gnu, solaris2 and cygwin.  */
  { /* This works on linux-gnu, solaris2 and cygwin.  */
    double pages = sysconf (_SC_AVPHYS_PAGES);
    double pages = sysconf (_SC_AVPHYS_PAGES);
    double pagesize = sysconf (_SC_PAGESIZE);
    double pagesize = sysconf (_SC_PAGESIZE);
    if (0 <= pages && 0 <= pagesize)
    if (0 <= pages && 0 <= pagesize)
      return pages * pagesize;
      return pages * pagesize;
  }
  }
#endif
#endif
 
 
#if HAVE_PSTAT_GETSTATIC && HAVE_PSTAT_GETDYNAMIC
#if HAVE_PSTAT_GETSTATIC && HAVE_PSTAT_GETDYNAMIC
  { /* This works on hpux11.  */
  { /* This works on hpux11.  */
    struct pst_static pss;
    struct pst_static pss;
    struct pst_dynamic psd;
    struct pst_dynamic psd;
    if (0 <= pstat_getstatic (&pss, sizeof pss, 1, 0)
    if (0 <= pstat_getstatic (&pss, sizeof pss, 1, 0)
        && 0 <= pstat_getdynamic (&psd, sizeof psd, 1, 0))
        && 0 <= pstat_getdynamic (&psd, sizeof psd, 1, 0))
      {
      {
        double pages = psd.psd_free;
        double pages = psd.psd_free;
        double pagesize = pss.page_size;
        double pagesize = pss.page_size;
        if (0 <= pages && 0 <= pagesize)
        if (0 <= pages && 0 <= pagesize)
          return pages * pagesize;
          return pages * pagesize;
      }
      }
  }
  }
#endif
#endif
 
 
#if HAVE_SYSMP && defined MP_SAGET && defined MPSA_RMINFO && defined _SC_PAGESIZE
#if HAVE_SYSMP && defined MP_SAGET && defined MPSA_RMINFO && defined _SC_PAGESIZE
  { /* This works on irix6. */
  { /* This works on irix6. */
    struct rminfo realmem;
    struct rminfo realmem;
    if (sysmp (MP_SAGET, MPSA_RMINFO, &realmem, sizeof realmem) == 0)
    if (sysmp (MP_SAGET, MPSA_RMINFO, &realmem, sizeof realmem) == 0)
      {
      {
        double pagesize = sysconf (_SC_PAGESIZE);
        double pagesize = sysconf (_SC_PAGESIZE);
        double pages = realmem.availrmem;
        double pages = realmem.availrmem;
        if (0 <= pages && 0 <= pagesize)
        if (0 <= pages && 0 <= pagesize)
          return pages * pagesize;
          return pages * pagesize;
      }
      }
  }
  }
#endif
#endif
 
 
#if HAVE_TABLE && defined TBL_VMSTATS
#if HAVE_TABLE && defined TBL_VMSTATS
  { /* This works on Tru64 UNIX V4/5.  */
  { /* This works on Tru64 UNIX V4/5.  */
    struct tbl_vmstats vmstats;
    struct tbl_vmstats vmstats;
 
 
    if (table (TBL_VMSTATS, 0, &vmstats, 1, sizeof (vmstats)) == 1)
    if (table (TBL_VMSTATS, 0, &vmstats, 1, sizeof (vmstats)) == 1)
      {
      {
        double pages = vmstats.free_count;
        double pages = vmstats.free_count;
        double pagesize = vmstats.pagesize;
        double pagesize = vmstats.pagesize;
 
 
        if (0 <= pages && 0 <= pagesize)
        if (0 <= pages && 0 <= pagesize)
          return pages * pagesize;
          return pages * pagesize;
      }
      }
  }
  }
#endif
#endif
 
 
#if HAVE_SYSCTL && defined HW_USERMEM
#if HAVE_SYSCTL && defined HW_USERMEM
  { /* This works on *bsd and darwin.  */
  { /* This works on *bsd and darwin.  */
    unsigned int usermem;
    unsigned int usermem;
    size_t len = sizeof usermem;
    size_t len = sizeof usermem;
    static int mib[2] = { CTL_HW, HW_USERMEM };
    static int mib[2] = { CTL_HW, HW_USERMEM };
 
 
    if (sysctl (mib, ARRAY_SIZE (mib), &usermem, &len, NULL, 0) == 0
    if (sysctl (mib, ARRAY_SIZE (mib), &usermem, &len, NULL, 0) == 0
        && len == sizeof (usermem))
        && len == sizeof (usermem))
      return (double) usermem;
      return (double) usermem;
  }
  }
#endif
#endif
 
 
#if defined _WIN32
#if defined _WIN32
  { /* this works on windows */
  { /* this works on windows */
    PFN_MS_EX pfnex;
    PFN_MS_EX pfnex;
    HMODULE h = GetModuleHandle ("kernel32.dll");
    HMODULE h = GetModuleHandle ("kernel32.dll");
 
 
    if (!h)
    if (!h)
      return 0.0;
      return 0.0;
 
 
    /*  Use GlobalMemoryStatusEx if available.  */
    /*  Use GlobalMemoryStatusEx if available.  */
    if ((pfnex = (PFN_MS_EX) GetProcAddress (h, "GlobalMemoryStatusEx")))
    if ((pfnex = (PFN_MS_EX) GetProcAddress (h, "GlobalMemoryStatusEx")))
      {
      {
        lMEMORYSTATUSEX lms_ex;
        lMEMORYSTATUSEX lms_ex;
        lms_ex.dwLength = sizeof lms_ex;
        lms_ex.dwLength = sizeof lms_ex;
        if (!pfnex (&lms_ex))
        if (!pfnex (&lms_ex))
          return 0.0;
          return 0.0;
        return (double) lms_ex.ullAvailPhys;
        return (double) lms_ex.ullAvailPhys;
      }
      }
 
 
    /*  Fall back to GlobalMemoryStatus which is always available.
    /*  Fall back to GlobalMemoryStatus which is always available.
        but returns wrong results for physical memory > 4GB  */
        but returns wrong results for physical memory > 4GB  */
    else
    else
      {
      {
        MEMORYSTATUS ms;
        MEMORYSTATUS ms;
        GlobalMemoryStatus (&ms);
        GlobalMemoryStatus (&ms);
        return (double) ms.dwAvailPhys;
        return (double) ms.dwAvailPhys;
      }
      }
  }
  }
#endif
#endif
 
 
  /* Guess 25% of physical memory.  */
  /* Guess 25% of physical memory.  */
  return physmem_total () / 4;
  return physmem_total () / 4;
}
}
 
 
 
 
#if DEBUG
#if DEBUG
 
 
# include <stdio.h>
# include <stdio.h>
# include <stdlib.h>
# include <stdlib.h>
 
 
int
int
main (void)
main (void)
{
{
  printf ("%12.f %12.f\n", physmem_total (), physmem_available ());
  printf ("%12.f %12.f\n", physmem_total (), physmem_available ());
  exit (0);
  exit (0);
}
}
 
 
#endif /* DEBUG */
#endif /* DEBUG */
 
 
/*
/*
Local Variables:
Local Variables:
compile-command: "gcc -DDEBUG -DHAVE_CONFIG_H -I.. -g -O -Wall -W physmem.c"
compile-command: "gcc -DDEBUG -DHAVE_CONFIG_H -I.. -g -O -Wall -W physmem.c"
End:
End:
*/
*/
 
 

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