diff options
Diffstat (limited to 'libc/sysdeps/linux')
| -rw-r--r-- | libc/sysdeps/linux/common/Makefile | 10 | ||||
| -rw-r--r-- | libc/sysdeps/linux/common/getdtablesize.c | 34 |
2 files changed, 40 insertions, 4 deletions
diff --git a/libc/sysdeps/linux/common/Makefile b/libc/sysdeps/linux/common/Makefile index 80a173aa1..edaf5f895 100644 --- a/libc/sysdeps/linux/common/Makefile +++ b/libc/sysdeps/linux/common/Makefile @@ -25,10 +25,12 @@ TOPDIR=../../../ include $(TOPDIR)Rules.mak LIBC=$(TOPDIR)libc.a -CSRC= _xmknod.c waitpid.c getdents.c kernel_version.c rewinddir.c statfix.c \ - getdnnm.c libc_init.c seekdir.c telldir.c tell.c gethstnm.c mkfifo.c \ - setegid.c wait.c errno.c closedir.c getpagesize.c opendir.c seteuid.c \ - wait3.c dirfd.c isatty.c readdir.c setpgrp.c +CSRC= _xmknod.c waitpid.c getdents.c kernel_version.c rewinddir.c \ + statfix.c getdnnm.c seekdir.c telldir.c tell.c gethstnm.c \ + mkfifo.c setegid.c wait.c errno.c closedir.c getpagesize.c \ + opendir.c seteuid.c wait3.c dirfd.c isatty.c readdir.c setpgrp.c \ + getdtablesize.c + COBJS=$(patsubst %.c,%.o, $(CSRC)) NISRC= _fxstat.c _lxstat.c _xstat.c diff --git a/libc/sysdeps/linux/common/getdtablesize.c b/libc/sysdeps/linux/common/getdtablesize.c new file mode 100644 index 000000000..664881f2a --- /dev/null +++ b/libc/sysdeps/linux/common/getdtablesize.c @@ -0,0 +1,34 @@ +/* Copyright (C) 1991, 1993, 1995, 1996, 1997 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Library General Public License for more details. + + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ + +#include <limits.h> +#include <unistd.h> +#include <sys/resource.h> + +/* Return the maximum number of file descriptors + the current process could possibly have. */ +int getdtablesize (void) +{ + struct rlimit ru; + + /* This should even work if `getrlimit' is not implemented. POSIX.1 + does not define this function but we will generate a stub which + returns -1. */ + return getrlimit (RLIMIT_NOFILE, &ru) < 0 ? OPEN_MAX : ru.rlim_cur; +} + |