along with this program; if not, write to the Free Software Foundation,
Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
-/* Written by Paul Eggert and Jim Meyering. */
+/* Written by Paul Eggert. */
#if HAVE_CONFIG_H
# include <config.h>
#endif
#if HAVE_SYS_SYSMP_H
-#include <sys/sysmp.h>
+# include <sys/sysmp.h>
+#endif
+
+#if HAVE_SYS_SYSINFO_H && HAVE_MACHINE_HAL_SYSINFO_H
+# include <sys/sysinfo.h>
+# include <machine/hal_sysinfo.h>
+#endif
+
+#if HAVE_SYS_TABLE_H
+# include <sys/table.h>
+#endif
+
+#include <sys/types.h>
+
+#if HAVE_SYS_PARAM_H
+# include <sys/param.h>
+#endif
+
+#if HAVE_SYS_SYSCTL_H
+# include <sys/sysctl.h>
+#endif
+
+#if HAVE_SYS_SYSTEMCFG_H
+# include <sys/systemcfg.h>
+#endif
+
+#ifdef _WIN32
+# define WIN32_LEAN_AND_MEAN
+# include <windows.h>
+/* MEMORYSTATUSEX is missing from older windows headers, so define
+ a local replacement. */
+typedef struct
+{
+ DWORD dwLength;
+ DWORD dwMemoryLoad;
+ DWORDLONG ullTotalPhys;
+ DWORDLONG ullAvailPhys;
+ DWORDLONG ullTotalPageFile;
+ DWORDLONG ullAvailPageFile;
+ DWORDLONG ullTotalVirtual;
+ DWORDLONG ullAvailVirtual;
+ DWORDLONG ullAvailExtendedVirtual;
+} lMEMORYSTATUSEX;
+typedef WINBOOL (WINAPI *PFN_MS_EX) (lMEMORYSTATUSEX*);
#endif
#include "libiberty.h"
physmem_total ()
{
#if defined _SC_PHYS_PAGES && defined _SC_PAGESIZE
- {
+ { /* This works on linux-gnu, solaris2 and cygwin. */
double pages = sysconf (_SC_PHYS_PAGES);
double pagesize = sysconf (_SC_PAGESIZE);
if (0 <= pages && 0 <= pagesize)
#if HAVE_SYSMP && defined MP_SAGET && defined MPSA_RMINFO && defined _SC_PAGESIZE
{ /* This works on irix6. */
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 pages = realmem.physmem;
if (0 <= pages && 0 <= pagesize)
- return pages * pagesize;
+ return pages * pagesize;
+ }
+ }
+#endif
+
+#if HAVE_GETSYSINFO && defined GSI_PHYSMEM
+ { /* This works on Tru64 UNIX V4/5. */
+ int physmem;
+
+ if (getsysinfo (GSI_PHYSMEM, (caddr_t) &physmem, sizeof (physmem),
+ NULL, NULL, NULL) == 1)
+ {
+ double kbytes = physmem;
+
+ if (0 <= kbytes)
+ return kbytes * 1024.0;
+ }
+ }
+#endif
+
+#if HAVE_SYSCTL && defined HW_PHYSMEM
+ { /* This works on *bsd and darwin. */
+ unsigned int physmem;
+ size_t len = sizeof physmem;
+ static int mib[2] = { CTL_HW, HW_PHYSMEM };
+
+ if (sysctl (mib, ARRAY_SIZE (mib), &physmem, &len, NULL, 0) == 0
+ && len == sizeof (physmem))
+ return (double) physmem;
+ }
+#endif
+
+#if HAVE__SYSTEM_CONFIGURATION
+ /* This works on AIX 4.3.3+. */
+ return _system_configuration.physmem;
+#endif
+
+#if defined _WIN32
+ { /* this works on windows */
+ PFN_MS_EX pfnex;
+ HMODULE h = GetModuleHandle ("kernel32.dll");
+
+ if (!h)
+ return 0.0;
+
+ /* Use GlobalMemoryStatusEx if available. */
+ if ((pfnex = (PFN_MS_EX) GetProcAddress (h, "GlobalMemoryStatusEx")))
+ {
+ lMEMORYSTATUSEX lms_ex;
+ lms_ex.dwLength = sizeof lms_ex;
+ if (!pfnex (&lms_ex))
+ return 0.0;
+ return (double) lms_ex.ullTotalPhys;
+ }
+
+ /* Fall back to GlobalMemoryStatus which is always available.
+ but returns wrong results for physical memory > 4GB. */
+ else
+ {
+ MEMORYSTATUS ms;
+ GlobalMemoryStatus (&ms);
+ return (double) ms.dwTotalPhys;
}
}
#endif
physmem_available ()
{
#if defined _SC_AVPHYS_PAGES && defined _SC_PAGESIZE
- {
+ { /* This works on linux-gnu, solaris2 and cygwin. */
double pages = sysconf (_SC_AVPHYS_PAGES);
double pagesize = sysconf (_SC_PAGESIZE);
if (0 <= pages && 0 <= pagesize)
#if HAVE_SYSMP && defined MP_SAGET && defined MPSA_RMINFO && defined _SC_PAGESIZE
{ /* This works on irix6. */
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 pages = realmem.availrmem;
if (0 <= pages && 0 <= pagesize)
- return pages * pagesize;
+ return pages * pagesize;
+ }
+ }
+#endif
+
+#if HAVE_TABLE && defined TBL_VMSTATS
+ { /* This works on Tru64 UNIX V4/5. */
+ struct tbl_vmstats vmstats;
+
+ if (table (TBL_VMSTATS, 0, &vmstats, 1, sizeof (vmstats)) == 1)
+ {
+ double pages = vmstats.free_count;
+ double pagesize = vmstats.pagesize;
+
+ if (0 <= pages && 0 <= pagesize)
+ return pages * pagesize;
+ }
+ }
+#endif
+
+#if HAVE_SYSCTL && defined HW_USERMEM
+ { /* This works on *bsd and darwin. */
+ unsigned int usermem;
+ size_t len = sizeof usermem;
+ static int mib[2] = { CTL_HW, HW_USERMEM };
+
+ if (sysctl (mib, ARRAY_SIZE (mib), &usermem, &len, NULL, 0) == 0
+ && len == sizeof (usermem))
+ return (double) usermem;
+ }
+#endif
+
+#if defined _WIN32
+ { /* this works on windows */
+ PFN_MS_EX pfnex;
+ HMODULE h = GetModuleHandle ("kernel32.dll");
+
+ if (!h)
+ return 0.0;
+
+ /* Use GlobalMemoryStatusEx if available. */
+ if ((pfnex = (PFN_MS_EX) GetProcAddress (h, "GlobalMemoryStatusEx")))
+ {
+ lMEMORYSTATUSEX lms_ex;
+ lms_ex.dwLength = sizeof lms_ex;
+ if (!pfnex (&lms_ex))
+ return 0.0;
+ return (double) lms_ex.ullAvailPhys;
+ }
+
+ /* Fall back to GlobalMemoryStatus which is always available.
+ but returns wrong results for physical memory > 4GB */
+ else
+ {
+ MEMORYSTATUS ms;
+ GlobalMemoryStatus (&ms);
+ return (double) ms.dwAvailPhys;
}
}
#endif
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