diff options
author | dnovillo <dnovillo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-03-02 19:59:43 +0000 |
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committer | dnovillo <dnovillo@138bc75d-0d04-0410-961f-82ee72b054a4> | 2003-03-02 19:59:43 +0000 |
commit | f121c8b8f44265d768f135cdf1acbd3a7340f83b (patch) | |
tree | 5c6a21a219fad58f781c80df47e413b426d29042 /libiberty | |
parent | b5ab2390ca7bc78c23753a32dc360e4dee52dee8 (diff) |
Mainline merge as of 2003-03-02.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/branches/tree-ssa-20020619-branch@63675 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'libiberty')
-rw-r--r-- | libiberty/ChangeLog | 15 | ||||
-rw-r--r-- | libiberty/physmem.c | 106 |
2 files changed, 107 insertions, 14 deletions
diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog index a72af02d94c..31d159b9317 100644 --- a/libiberty/ChangeLog +++ b/libiberty/ChangeLog @@ -1,3 +1,18 @@ +2003-02-27 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> + + * physmem.c: Formatting changes from upstream. + +2003-02-24 Danny Smith <dannysmith@users.source.forge.net> + + * physmem.c (physmem_total): Add _WIN32 support. + (physmem_available): Likewise. + +2003-02-24 Rainer Orth <ro@TechFak.Uni-Bielefeld.DE> + + * physmem.c (physmem_total) [HAVE_GETSYSINFO]: Test for + GSI_PHYSMEM. + (physmem_available) [HAVE_TABLE]: Test for TBL_VMSTATS. + 2003-02-22 Kaveh R. Ghazi <ghazi@caip.rutgers.edu> * configure.in: Check for sys/systemcfg.h and diff --git a/libiberty/physmem.c b/libiberty/physmem.c index 80fdd7975e9..9185c1224e8 100644 --- a/libiberty/physmem.c +++ b/libiberty/physmem.c @@ -56,6 +56,26 @@ # 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" /* Return the total amount of physical memory. */ @@ -63,7 +83,7 @@ double 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) @@ -92,12 +112,12 @@ physmem_total () double pagesize = sysconf (_SC_PAGESIZE); double pages = realmem.physmem; if (0 <= pages && 0 <= pagesize) - return pages * pagesize; + return pages * pagesize; } } #endif -#if HAVE_GETSYSINFO +#if HAVE_GETSYSINFO && defined GSI_PHYSMEM { /* This works on Tru64 UNIX V4/5. */ int physmem; @@ -115,12 +135,12 @@ physmem_total () #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}; + size_t len = sizeof 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)) - return (double)physmem; + return (double) physmem; } #endif @@ -129,6 +149,35 @@ physmem_total () 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 + /* Return 0 if we can't determine the value. */ return 0; } @@ -138,7 +187,7 @@ double 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) @@ -169,12 +218,12 @@ physmem_available () double pagesize = sysconf (_SC_PAGESIZE); double pages = realmem.availrmem; if (0 <= pages && 0 <= pagesize) - return pages * pagesize; + return pages * pagesize; } } #endif -#if HAVE_TABLE && HAVE_SYS_TABLE_H +#if HAVE_TABLE && defined TBL_VMSTATS { /* This works on Tru64 UNIX V4/5. */ struct tbl_vmstats vmstats; @@ -192,12 +241,41 @@ physmem_available () #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}; + size_t len = sizeof 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)) - return (double)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 |