test-pipe.c

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Hash : 9b604b4c
Author :
Date : 2011-09-23T21:38:44

New module 'msvc-nothrow'. Makes _get_osfhandle safe on MSVC 9.

* lib/msvc-nothrow.h: New file.
* lib/msvc-nothrow.c: New file.
* m4/msvc-nothrow.m4: New file.
* modules/msvc-nothrow: New file.
* lib/dup2.c: Include msvc-nothrow.h.
(rpl_dup2): No need to protect _get_osfhandle call here.
* lib/accept4.c: Include msvc-nothrow.h.
* lib/error.c: Likewise.
* lib/fcntl.c: Likewise.
* lib/lseek.c: Likewise.
* lib/nonblocking.c: Likewise.
* lib/poll.c: Likewise.
* lib/read.c: Likewise.
* lib/select.c: Likewise.
* lib/sockets.h: Likewise.
* lib/sockets.c: Likewise.
* lib/stdio-read.c: Likewise.
* lib/stdio-write.c: Likewise.
* lib/write.c: Likewise.
* lib/w32sock.h: Likewise.
* lib/w32spawn.h: Likewise.
* lib/flock.c: Include msvc-nothrow.h instead of <io.h>.
* lib/fsync.c: Likewise.
* lib/isapipe.c: Likewise.
* modules/dup2 (Depends-on): Add msvc-nothrow.
* modules/accept4 (Depends-on): Likewise.
* modules/error (Depends-on): Likewise.
* modules/fcntl (Depends-on): Likewise.
* modules/lseek (Depends-on): Likewise.
* modules/nonblocking (Depends-on): Likewise.
* modules/poll (Depends-on): Likewise.
* modules/read (Depends-on): Likewise.
* modules/select (Depends-on): Likewise.
* modules/sockets (Depends-on): Likewise.
* modules/sigpipe (Depends-on): Likewise.
* modules/write (Depends-on): Likewise.
* modules/accept (Depends-on): Likewise.
* modules/bind (Depends-on): Likewise.
* modules/connect (Depends-on): Likewise.
* modules/gethostname (Depends-on): Likewise.
* modules/getpeername (Depends-on): Likewise.
* modules/getsockname (Depends-on): Likewise.
* modules/getsockopt (Depends-on): Likewise.
* modules/ioctl (Depends-on): Likewise.
* modules/listen (Depends-on): Likewise.
* modules/recv (Depends-on): Likewise.
* modules/recvfrom (Depends-on): Likewise.
* modules/send (Depends-on): Likewise.
* modules/sendto (Depends-on): Likewise.
* modules/setsockopt (Depends-on): Likewise.
* modules/shutdown (Depends-on): Likewise.
* modules/socket (Depends-on): Likewise.
* modules/execute (Depends-on): Likewise.
* modules/spawn-pipe (Depends-on): Likewise.
* modules/flock (Depends-on): Likewise.
* modules/fsync (Depends-on): Likewise.
* modules/isapipe (Depends-on): Likewise.
* tests/test-cloexec.c: Include msvc-nothrow.h.
* tests/test-dup-safer.c: Likewise.
* tests/test-dup2.c: Likewise.
* tests/test-dup3.c: Likewise.
* tests/test-fcntl.c: Likewise.
* tests/test-pipe.c: Likewise.
* tests/test-pipe2.c: Likewise.
* modules/cloexec-tests (Depends-on): Add msvc-nothrow.
* modules/unistd-safer-tests (Depends-on): Likewise.
* modules/dup2-tests (Depends-on): Likewise.
* modules/dup3-tests (Depends-on): Likewise.
* modules/fcntl-tests (Depends-on): Likewise.
* modules/pipe-posix-tests (Depends-on): Likewise.
* modules/pipe2-tests (Depends-on): Likewise.

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tests/test-pipe.c

/* Test of pipe.
   Copyright (C) 2009-2011 Free Software Foundation, Inc.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3, or (at your option)
   any later version.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software Foundation,
   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */

#include <config.h>

#include <unistd.h>

#include "signature.h"
SIGNATURE_CHECK (pipe, int, (int[2]));

#include <fcntl.h>
#include <stdbool.h>

#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
/* Get declarations of the Win32 API functions.  */
# define WIN32_LEAN_AND_MEAN
# include <windows.h>
/* Get _get_osfhandle.  */
# include "msvc-nothrow.h"
#endif

#include "binary-io.h"
#include "macros.h"

/* Return true if FD is open.  */
static bool
is_open (int fd)
{
#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
  /* On Win32, the initial state of unassigned standard file
     descriptors is that they are open but point to an
     INVALID_HANDLE_VALUE, and there is no fcntl.  */
  return (HANDLE) _get_osfhandle (fd) != INVALID_HANDLE_VALUE;
#else
# ifndef F_GETFL
#  error Please port fcntl to your platform
# endif
  return 0 <= fcntl (fd, F_GETFL);
#endif
}

/* Return true if FD is not inherited to child processes.  */
static bool
is_cloexec (int fd)
{
#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
  HANDLE h = (HANDLE) _get_osfhandle (fd);
  DWORD flags;
  ASSERT (GetHandleInformation (h, &flags));
  return (flags & HANDLE_FLAG_INHERIT) == 0;
#else
  int flags;
  ASSERT ((flags = fcntl (fd, F_GETFD)) >= 0);
  return (flags & FD_CLOEXEC) != 0;
#endif
}

/* Return true if FD is in non-blocking mode.  */
static bool
is_nonblocking (int fd)
{
#if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
  /* We don't use the non-blocking mode for sockets here.  */
  return 0;
#else
  int flags;
  ASSERT ((flags = fcntl (fd, F_GETFL)) >= 0);
  return (flags & O_NONBLOCK) != 0;
#endif
}

int
main ()
{
  int fd[2];

  fd[0] = -1;
  fd[1] = -1;
  ASSERT (pipe (fd) >= 0);
  ASSERT (fd[0] >= 0);
  ASSERT (fd[1] >= 0);
  ASSERT (fd[0] != fd[1]);
  ASSERT (is_open (fd[0]));
  ASSERT (is_open (fd[1]));
  ASSERT (!is_cloexec (fd[0]));
  ASSERT (!is_cloexec (fd[1]));
  ASSERT (!is_nonblocking (fd[0]));
  ASSERT (!is_nonblocking (fd[1]));

  return 0;
}

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kc3-lang/gnulib/tests/test-pipe.c

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tests/test-pipe.c