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// { dg-require-fork "" }

// { dg-require-mkfifo "" }

// 2003-05-01 Petur Runolfsson  <peturr02@ru.is>

// Copyright (C) 2003, 2005 Free Software Foundation, Inc.

//

// This file is part of the GNU ISO C++ Library.  This library 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 2, or (at your option)

// any later version.

// This 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 General Public License for more details.

// You should have received a copy of the GNU General Public License along

// with this library; see the file COPYING.  If not, write to the Free

// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,

// USA.

// 27.3 Standard iostream objects

#include <fstream>

#include <iostream>

#include <unistd.h>

#include <signal.h>

#include <fcntl.h>

#include <sys/types.h>

#include <sys/stat.h>

#include <testsuite_hooks.h>

// Check that wcout.flush() is called when last ios_base::Init is destroyed.

void test07()

{

  using namespace std;

  using namespace __gnu_test;

  bool test __attribute__((unused)) = true;

  const char* name = "tmp_fifo4";

  signal(SIGPIPE, SIG_IGN);

  unlink(name);

  mkfifo(name, S_IRWXU);

  semaphore s1;

  int child = fork();

  VERIFY( child != -1 );

  if (child == 0)

    {

      wfilebuf fbout;

      fbout.open(name, ios_base::out);

      s1.wait();

      wcout.rdbuf(&fbout);

      fbout.sputc(L'a');

      // NB: fbout is *not* destroyed here!

      exit(0);

    }

  wfilebuf fbin;

  fbin.open(name, ios_base::in);

  s1.signal ();

  wfilebuf::int_type c = fbin.sbumpc();

  VERIFY( c != wfilebuf::traits_type::eof() );

  VERIFY( c == wfilebuf::traits_type::to_int_type(L'a') );

  fbin.close();

}

int

main()

{

  test07();

  return 0;

}