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PATH: usr / include / bits

/* System-specific extensions of <unistd.h>, Linux version.
   Copyright (C) 2019-2021 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 Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 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
   Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <https://www.gnu.org/licenses/>.  */

#ifndef _UNISTD_H
# error "Never include <bits/unistd_ext.h> directly; use <unistd.h> instead."
#endif

#ifdef __USE_GNU

/* Return the kernel thread ID (TID) of the current thread.  The
   returned value is not subject to caching.  Most Linux system calls
   accept a TID in place of a PID.  Using the TID to change properties
   of a thread that has been created using pthread_create can lead to
   undefined behavior (comparable to manipulating file descriptors
   directly that have not been created explicitly).  Note that a TID
   uniquely identifies a thread only while this thread is running; a
   TID can be reused once a thread has exited, even if the thread is
   not detached and has not been joined.  */
extern __pid_t gettid (void) __THROW;

#ifdef __has_include
# if __has_include ("linux/close_range.h")
#  include "linux/close_range.h"
# endif
#endif
/* Unshare the file descriptor table before closing file descriptors.  */
#ifndef CLOSE_RANGE_UNSHARE
# define CLOSE_RANGE_UNSHARE (1U << 1)
#endif
/* Set the FD_CLOEXEC bit instead of closing the file descriptor.  */
#ifndef CLOSE_RANGE_CLOEXEC
# define CLOSE_RANGE_CLOEXEC (1U << 2)
#endif

/* Close all file descriptors in the range FD up to MAX_FD.  The flag FLAGS
   are define by the CLOSE_RANGE prefix.  This function behaves like close
   on the range, but in a fail-safe where it will either fail and not close
   any file descriptor or close all of them.  Gaps where the file descriptor
   is invalid are ignored.   Returns 0 on successor or -1 for failure (and
   sets errno accordingly).  */
extern int close_range (unsigned int __fd, unsigned int __max_fd,
			int __flags) __THROW;

#endif /* __USE_GNU  */

[+] ..
[-] stdlib-ldbl.h [edit]
[-] types.h [edit]
[-] ipctypes.h [edit]
[-] sysmacros.h [edit]
[-] statvfs.h [edit]
[-] statfs.h [edit]
[-] utmp.h [edit]
[-] procfs-id.h [edit]
[-] time.h [edit]
[-] select2.h [edit]
[-] struct_mutex.h [edit]
[-] statx-generic.h [edit]
[-] shmlba.h [edit]
[-] termios.h [edit]
[-] stdint-uintn.h [edit]
[-] pthreadtypes.h [edit]
[-] inet-fortified-decl.h [edit]
[-] mman-map-flags-generic.h [edit]
[-] wchar2.h [edit]
[-] confname.h [edit]
[-] utmpx.h [edit]
[-] struct_stat.h [edit]
[-] indirect-return.h [edit]
[-] wchar2-decl.h [edit]
[-] strings_fortified.h [edit]
[-] link_lavcurrent.h [edit]
[-] waitstatus.h [edit]
[-] termios-struct.h [edit]
[-] cmathcalls.h [edit]
[-] getopt_ext.h [edit]
[-] wctype-wchar.h [edit]
[-] sigstksz.h [edit]
[-] wchar-ldbl.h [edit]
[-] string_fortified.h [edit]
[-] struct_rwlock.h [edit]
[-] termios-c_oflag.h [edit]
[-] syslog-path.h [edit]
[-] pthread_stack_min.h [edit]
[-] dlfcn.h [edit]
[-] signalfd.h [edit]
[-] in.h [edit]
[-] stdio.h [edit]
[-] endianness.h [edit]
[-] stdio_lim.h [edit]
[-] error.h [edit]
[-] stab.def [edit]
[-] initspin.h [edit]
[-] procfs-prregset.h [edit]
[-] fcntl-linux.h [edit]
[-] stdio-ldbl.h [edit]
[-] timex.h [edit]
[-] statx.h [edit]
[-] termios-baud.h [edit]
[-] ioctl-types.h [edit]
[-] dirent_ext.h [edit]
[-] timerfd.h [edit]
[-] libm-simd-decl-stubs.h [edit]
[-] mman.h [edit]
[-] semaphore.h [edit]
[-] procfs.h [edit]
[-] flt-eval-method.h [edit]
[-] setjmp2.h [edit]
[-] rseq.h [edit]
[-] mman-linux.h [edit]
[-] typesizes.h [edit]
[-] fenv.h [edit]
[-] signum-arch.h [edit]
[-] stdio2-decl.h [edit]
[-] mqueue2.h [edit]
[-] printf-ldbl.h [edit]
[-] posix1_lim.h [edit]
[-] byteswap.h [edit]
[-] posix2_lim.h [edit]
[-] setjmp.h [edit]
[-] sem.h [edit]
[-] ipc-perm.h [edit]
[-] stdio2.h [edit]
[-] errno.h [edit]
[-] mqueue.h [edit]
[-] mathcalls.h [edit]
[-] long-double.h [edit]
[-] pthread_stack_min-dynamic.h [edit]
[-] sigstack.h [edit]
[-] elfclass.h [edit]
[-] termios-c_cc.h [edit]
[-] floatn-common.h [edit]
[-] mathcalls-helper-functions.h [edit]
[-] unistd_ext.h [edit]
[-] socket_type.h [edit]
[-] mman-shared.h [edit]
[-] unistd.h [edit]
[-] wchar.h [edit]
[-] dl_find_object.h [edit]
[-] error-ldbl.h [edit]
[-] ptrace-shared.h [edit]
[-] mathcalls-narrow.h [edit]
[-] libc-header-start.h [edit]
[-] netdb.h [edit]
[-] sigthread.h [edit]
[-] link.h [edit]
[-] fp-logb.h [edit]
[-] procfs-extra.h [edit]
[-] stdlib-bsearch.h [edit]
[-] posix_opt.h [edit]
[-] stdint-intn.h [edit]
[-] sockaddr.h [edit]
[-] inet-fortified.h [edit]
[-] thread-shared-types.h [edit]
[-] getopt_posix.h [edit]
[-] stdlib-float.h [edit]
[-] utsname.h [edit]
[-] ioctls.h [edit]
[-] uio_lim.h [edit]
[-] uio-ext.h [edit]
[-] signum-generic.h [edit]
[-] termios-c_lflag.h [edit]
[-] syslog-ldbl.h [edit]
[-] mathdef.h [edit]
[-] param.h [edit]
[-] select.h [edit]
[-] epoll.h [edit]
[-] socket.h [edit]
[-] uintn-identity.h [edit]
[-] signal_ext.h [edit]
[-] endian.h [edit]
[-] argp-ldbl.h [edit]
[-] resource.h [edit]
[-] local_lim.h [edit]
[-] stat.h [edit]
[-] fp-fast.h [edit]
[-] eventfd.h [edit]
[-] poll2.h [edit]
[-] termios-c_cflag.h [edit]
[-] cpu-set.h [edit]
[-] sched.h [edit]
[-] siginfo-arch.h [edit]
[-] time64.h [edit]
[-] math-vector.h [edit]
[-] inotify.h [edit]
[-] siginfo-consts-arch.h [edit]
[-] locale.h [edit]
[-] msq.h [edit]
[-] siginfo-consts.h [edit]
[-] err-ldbl.h [edit]
[+] types
[-] waitflags.h [edit]
[-] iscanonical.h [edit]
[-] atomic_wide_counter.h [edit]
[-] termios-c_iflag.h [edit]
[-] pthreadtypes-arch.h [edit]
[-] floatn.h [edit]
[-] syslog.h [edit]
[-] xopen_lim.h [edit]
[-] environments.h [edit]
[-] termios-misc.h [edit]
[-] hwcap.h [edit]
[-] wordsize.h [edit]
[-] ipc.h [edit]
[-] timesize.h [edit]
[-] sigevent-consts.h [edit]
[-] fcntl.h [edit]
[-] syscall.h [edit]
[-] fcntl2.h [edit]
[-] a.out.h [edit]
[+] platform
[-] sigaction.h [edit]
[-] stdlib.h [edit]
[-] dirent.h [edit]
[-] termios-tcflow.h [edit]
[-] ss_flags.h [edit]
[-] poll.h [edit]
[-] monetary-ldbl.h [edit]
[-] getopt_core.h [edit]
[-] sigcontext.h [edit]
[-] socket2.h [edit]
[-] shm.h [edit]
[-] struct_stat_time64_helper.h [edit]
[-] socket-constants.h [edit]