diff options
Diffstat (limited to 'Build/source/extra/xz/src/common/tuklib_physmem.c')
-rw-r--r-- | Build/source/extra/xz/src/common/tuklib_physmem.c | 196 |
1 files changed, 0 insertions, 196 deletions
diff --git a/Build/source/extra/xz/src/common/tuklib_physmem.c b/Build/source/extra/xz/src/common/tuklib_physmem.c deleted file mode 100644 index 623b6e70b7f..00000000000 --- a/Build/source/extra/xz/src/common/tuklib_physmem.c +++ /dev/null @@ -1,196 +0,0 @@ -/////////////////////////////////////////////////////////////////////////////// -// -/// \file tuklib_physmem.c -/// \brief Get the amount of physical memory -// -// Author: Lasse Collin -// -// This file has been put into the public domain. -// You can do whatever you want with this file. -// -/////////////////////////////////////////////////////////////////////////////// - -#include "tuklib_physmem.h" - -// We want to use Windows-specific code on Cygwin, which also has memory -// information available via sysconf(), but on Cygwin 1.5 and older it -// gives wrong results (from our point of view). -#if defined(_WIN32) || defined(__CYGWIN__) -# ifndef _WIN32_WINNT -# define _WIN32_WINNT 0x0500 -# endif -# include <windows.h> - -#elif defined(__OS2__) -# define INCL_DOSMISC -# include <os2.h> - -#elif defined(__DJGPP__) -# include <dpmi.h> - -#elif defined(__VMS) -# include <lib$routines.h> -# include <syidef.h> -# include <ssdef.h> - -// AIX -#elif defined(TUKLIB_PHYSMEM_AIX) -# include <sys/systemcfg.h> - -#elif defined(TUKLIB_PHYSMEM_SYSCONF) -# include <unistd.h> - -#elif defined(TUKLIB_PHYSMEM_SYSCTL) -# ifdef HAVE_SYS_PARAM_H -# include <sys/param.h> -# endif -# include <sys/sysctl.h> - -// Tru64 -#elif defined(TUKLIB_PHYSMEM_GETSYSINFO) -# include <sys/sysinfo.h> -# include <machine/hal_sysinfo.h> - -// HP-UX -#elif defined(TUKLIB_PHYSMEM_PSTAT_GETSTATIC) -# include <sys/param.h> -# include <sys/pstat.h> - -// IRIX -#elif defined(TUKLIB_PHYSMEM_GETINVENT_R) -# include <invent.h> - -// This sysinfo() is Linux-specific. -#elif defined(TUKLIB_PHYSMEM_SYSINFO) -# include <sys/sysinfo.h> -#endif - - -extern uint64_t -tuklib_physmem(void) -{ - uint64_t ret = 0; - -#if defined(_WIN32) || defined(__CYGWIN__) - if ((GetVersion() & 0xFF) >= 5) { - // Windows 2000 and later have GlobalMemoryStatusEx() which - // supports reporting values greater than 4 GiB. To keep the - // code working also on older Windows versions, use - // GlobalMemoryStatusEx() conditionally. - HMODULE kernel32 = GetModuleHandle("kernel32.dll"); - if (kernel32 != NULL) { - BOOL (WINAPI *gmse)(LPMEMORYSTATUSEX) = GetProcAddress( - kernel32, "GlobalMemoryStatusEx"); - if (gmse != NULL) { - MEMORYSTATUSEX meminfo; - meminfo.dwLength = sizeof(meminfo); - if (gmse(&meminfo)) - ret = meminfo.ullTotalPhys; - } - } - } - - if (ret == 0) { - // GlobalMemoryStatus() is supported by Windows 95 and later, - // so it is fine to link against it unconditionally. Note that - // GlobalMemoryStatus() has no return value. - MEMORYSTATUS meminfo; - meminfo.dwLength = sizeof(meminfo); - GlobalMemoryStatus(&meminfo); - ret = meminfo.dwTotalPhys; - } - -#elif defined(__OS2__) - unsigned long mem; - if (DosQuerySysInfo(QSV_TOTPHYSMEM, QSV_TOTPHYSMEM, - &mem, sizeof(mem)) == 0) - ret = mem; - -#elif defined(__DJGPP__) - __dpmi_free_mem_info meminfo; - if (__dpmi_get_free_memory_information(&meminfo) == 0 - && meminfo.total_number_of_physical_pages - != (unsigned long)-1) - ret = (uint64_t)meminfo.total_number_of_physical_pages * 4096; - -#elif defined(__VMS) - int vms_mem; - int val = SYI$_MEMSIZE; - if (LIB$GETSYI(&val, &vms_mem, 0, 0, 0, 0) == SS$_NORMAL) - ret = (uint64_t)vms_mem * 8192; - -#elif defined(TUKLIB_PHYSMEM_AIX) - ret = _system_configuration.physmem; - -#elif defined(TUKLIB_PHYSMEM_SYSCONF) - const long pagesize = sysconf(_SC_PAGESIZE); - const long pages = sysconf(_SC_PHYS_PAGES); - if (pagesize != -1 && pages != -1) - // According to docs, pagesize * pages can overflow. - // Simple case is 32-bit box with 4 GiB or more RAM, - // which may report exactly 4 GiB of RAM, and "long" - // being 32-bit will overflow. Casting to uint64_t - // hopefully avoids overflows in the near future. - ret = (uint64_t)pagesize * (uint64_t)pages; - -#elif defined(TUKLIB_PHYSMEM_SYSCTL) - int name[2] = { - CTL_HW, -#ifdef HW_PHYSMEM64 - HW_PHYSMEM64 -#else - HW_PHYSMEM -#endif - }; - union { - uint32_t u32; - uint64_t u64; - } mem; - size_t mem_ptr_size = sizeof(mem.u64); - if (sysctl(name, 2, &mem.u64, &mem_ptr_size, NULL, 0) != -1) { - // IIRC, 64-bit "return value" is possible on some 64-bit - // BSD systems even with HW_PHYSMEM (instead of HW_PHYSMEM64), - // so support both. - if (mem_ptr_size == sizeof(mem.u64)) - ret = mem.u64; - else if (mem_ptr_size == sizeof(mem.u32)) - ret = mem.u32; - } - -#elif defined(TUKLIB_PHYSMEM_GETSYSINFO) - // Docs are unclear if "start" is needed, but it doesn't hurt - // much to have it. - int memkb; - int start = 0; - if (getsysinfo(GSI_PHYSMEM, (caddr_t)&memkb, sizeof(memkb), &start) - != -1) - ret = (uint64_t)memkb * 1024; - -#elif defined(TUKLIB_PHYSMEM_PSTAT_GETSTATIC) - struct pst_static pst; - if (pstat_getstatic(&pst, sizeof(pst), 1, 0) != -1) - ret = (uint64_t)pst.physical_memory * (uint64_t)pst.page_size; - -#elif defined(TUKLIB_PHYSMEM_GETINVENT_R) - inv_state_t *st = NULL; - if (setinvent_r(&st) != -1) { - inventory_t *i; - while ((i = getinvent_r(st)) != NULL) { - if (i->inv_class == INV_MEMORY - && i->inv_type == INV_MAIN_MB) { - ret = (uint64_t)i->inv_state << 20; - break; - } - } - - endinvent_r(st); - } - -#elif defined(TUKLIB_PHYSMEM_SYSINFO) - struct sysinfo si; - if (sysinfo(&si) == 0) - ret = (uint64_t)si.totalram * si.mem_unit; -#endif - - return ret; -} |