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* ntdll.h: New file.

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* fhandler_mem.cc: Move ntdll.dll specific definitions and
        declarations to ntdll.h.
        * sysconf.cc (sysconf): Add support for _SC_NPROCESSORS_CONF,
        _SC_NPROCESSORS_ONLN, _SC_PHYS_PAGES and _SC_AVPHYS_PAGES.
This commit is contained in:
Corinna Vinschen
2000-10-24 18:44:56 +00:00
parent ba9e88d24c
commit 8c8d0db462
4 changed files with 94 additions and 36 deletions
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35
winsup/cygwin/sysconf.cc
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@@ -13,9 +13,11 @@ details. */
#include <errno.h>
#include <time.h>
#include <limits.h>
#include <ntdef.h>
#include "fhandler.h"
#include "dtable.h"
#include "cygerrno.h"
#include "ntdll.h"
/* sysconf: POSIX 4.8.1.1 */
/* Allows a portable app to determine quantities of resources or
@@ -57,6 +59,39 @@ sysconf (int in)
case _SC_STREAM_MAX:
return _POSIX_STREAM_MAX;
#endif
case _SC_NPROCESSORS_CONF:
case _SC_NPROCESSORS_ONLN:
if (os_being_run != winNT)
return 1;
/*FALLTHRU*/
case _SC_PHYS_PAGES:
case _SC_AVPHYS_PAGES:
{
NTSTATUS ret;
SYSTEM_BASIC_INFORMATION sbi;
if ((ret = NtQuerySystemInformation (SystemBasicInformation,
(PVOID) &sbi,
sizeof sbi, NULL))
!= STATUS_SUCCESS)
{
__seterrno_from_win_error (RtlNtStatusToDosError (ret));
debug_printf("NtQuerySystemInformation: ret = %d, "
"Dos(ret) = %d",
ret, RtlNtStatusToDosError (ret));
return -1;
}
switch (in)
{
case _SC_NPROCESSORS_CONF:
return sbi.NumberProcessors;
case _SC_NPROCESSORS_ONLN:
return sbi.ActiveProcessors;
case _SC_PHYS_PAGES:
return sbi.NumberOfPhysicalPages;
case _SC_AVPHYS_PAGES:
return sbi.HighestPhysicalPage - sbi.LowestPhysicalPage + 1;
}
}
}
/* Invalid input or unimplemented sysconf name */