diff options
Diffstat (limited to 'lib/getdtablesize.c')
| -rw-r--r-- | lib/getdtablesize.c | 35 |
1 files changed, 17 insertions, 18 deletions
diff --git a/lib/getdtablesize.c b/lib/getdtablesize.c index 59b97360bc5..bad45f7e32f 100644 --- a/lib/getdtablesize.c +++ b/lib/getdtablesize.c @@ -84,32 +84,31 @@ getdtablesize (void) return dtablesize; } -#elif HAVE_GETDTABLESIZE +#else +# include <limits.h> # include <sys/resource.h> -# undef getdtablesize + +# ifdef __CYGWIN__ + /* Cygwin 1.7.25 auto-increases the RLIMIT_NOFILE soft limit until it + hits the compile-time constant hard limit of 3200. We might as + well just report the hard limit. */ +# define rlim_cur rlim_max +# endif int -rpl_getdtablesize(void) +getdtablesize (void) { - /* To date, this replacement is only compiled for Cygwin 1.7.25, - which auto-increased the RLIMIT_NOFILE soft limit until it - hits the compile-time constant hard limit of 3200. Although - that version of cygwin supported a child process inheriting - a smaller soft limit, the smaller limit is not enforced, so - we might as well just report the hard limit. */ struct rlimit lim; - if (!getrlimit (RLIMIT_NOFILE, &lim) && lim.rlim_max != RLIM_INFINITY) - return lim.rlim_max; - return getdtablesize (); -} -#elif defined _SC_OPEN_MAX + if (getrlimit (RLIMIT_NOFILE, &lim) == 0 + && 0 <= lim.rlim_cur && lim.rlim_cur <= INT_MAX + && lim.rlim_cur != RLIM_INFINITY + && lim.rlim_cur != RLIM_SAVED_CUR + && lim.rlim_cur != RLIM_SAVED_MAX) + return lim.rlim_cur; -int -getdtablesize (void) -{ - return sysconf (_SC_OPEN_MAX); + return INT_MAX; } #endif |