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newlib-cygwin
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Cygwin: sysconf, getrlimit: don't call getdtablesize 

Now that getdtablesize always returns OPEN_MAX_MAX, we can simplify
sysconf(_SC_OPEN_MAX) and getrlimit(RLIMIT_NOFILE) to just use that
same constant instead of calling getdtablesize.
This commit is contained in:
Ken Brown 2021-01-29 09:02:15 -05:00
parent 3d256e22e2
commit b9cbc49b70
2 changed files with 2 additions and 14 deletions
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5
winsup/cygwin/resource.cc
View File

@ -182,10 +182,7 @@ getrlimit (int resource, struct rlimit *rlp)
__get_rlimit_stack (rlp);
break;
case RLIMIT_NOFILE:
rlp->rlim_cur = getdtablesize ();
if (rlp->rlim_cur < OPEN_MAX)
rlp->rlim_cur = OPEN_MAX;
rlp->rlim_max = OPEN_MAX_MAX;
rlp->rlim_cur = rlp->rlim_max = OPEN_MAX_MAX;
break;
case RLIMIT_CORE:
rlp->rlim_cur = cygheap->rlim_core;

11
winsup/cygwin/sysconf.cc
View File

@ -21,15 +21,6 @@ details. */
#include "cpuid.h"
#include "clock.h"
static long
get_open_max (int in)
{
long max = getdtablesize ();
if (max < OPEN_MAX)
max = OPEN_MAX;
return max;
}
static long
get_page_size (int in)
{
@ -520,7 +511,7 @@ static struct
{cons, {c:CHILD_MAX}}, /* 1, _SC_CHILD_MAX */
{cons, {c:CLOCKS_PER_SEC}}, /* 2, _SC_CLK_TCK */
{cons, {c:NGROUPS_MAX}}, /* 3, _SC_NGROUPS_MAX */
{func, {f:get_open_max}}, /* 4, _SC_OPEN_MAX */
{cons, {c:OPEN_MAX_MAX}}, /* 4, _SC_OPEN_MAX */
{cons, {c:_POSIX_JOB_CONTROL}}, /* 5, _SC_JOB_CONTROL */
{cons, {c:_POSIX_SAVED_IDS}}, /* 6, _SC_SAVED_IDS */
{cons, {c:_POSIX_VERSION}}, /* 7, _SC_VERSION */