sysdeps/unix/sysv/linux/pipe.c

   1 /* Create create pipe.  Linux generic version.
   2    Copyright (C) 2021-2023 Free Software Foundation, Inc.
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library.  If not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #include <unistd.h>
  20 #include <sysdep.h>
  21
  22 /* Create a one-way communication channel (__pipe).
  23    If successful, two file descriptors are stored in PIPEDES;
  24    bytes written on PIPEDES[1] can be read from PIPEDES[0].
  25    Returns 0 if successful, -1 if not.  */
  26 int
  27 __pipe (int __pipedes[2])
  28 {
  29   return INLINE_SYSCALL_CALL (pipe2, (int *) __pipedes, 0);
  30 }
  31 libc_hidden_def (__pipe)
  32 weak_alias (__pipe, pipe)