1// { dg-require-fork "" }
2// { dg-require-mkfifo "" }
3
4// Copyright (C) 2001, 2002, 2003, 2005 Free Software Foundation, Inc.
5//
6// This file is part of the GNU ISO C++ Library.  This library is free
7// software; you can redistribute it and/or modify it under the
8// terms of the GNU General Public License as published by the
9// Free Software Foundation; either version 2, or (at your option)
10// any later version.
11
12// This library is distributed in the hope that it will be useful,
13// but WITHOUT ANY WARRANTY; without even the implied warranty of
14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15// GNU General Public License for more details.
16
17// You should have received a copy of the GNU General Public License along
18// with this library; see the file COPYING.  If not, write to the Free
19// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
20// USA.
21
22// 27.8.1.3 filebuf member functions
23// @require@ %-*.tst %-*.txt
24// @diff@ %-*.tst %-*.txt
25
26// various tests for filebuf::open() and filebuf::close() including
27// the non-portable functionality in the libstdc++-v3 IO library
28
29#include <fstream>
30#include <iostream>
31#include <unistd.h>
32#include <signal.h>
33#include <fcntl.h>
34#include <sys/types.h>
35#include <sys/stat.h>
36#include <testsuite_hooks.h>
37
38// libstdc++/2913, libstdc++/4879
39// John Fardo  <jfardo@laurelnetworks.com>, Brad Garcia <garsh@attbi.com>
40void
41test_04()
42{
43  using namespace __gnu_test;
44
45  bool test __attribute__((unused)) = true;
46  const char* name = "tmp_fifo1";
47  semaphore s1, s2;
48
49  signal(SIGPIPE, SIG_IGN);
50
51  unlink(name);
52  if (0 != mkfifo(name, S_IRWXU))
53    {
54      std::cerr << "failed to create fifo" << std::endl;
55      exit(-1);
56    }
57
58  int fval = fork();
59  if (fval == -1)
60    {
61      std::cerr << "failed to fork" << std::endl;
62      unlink(name);
63      exit(-1);
64    }
65  else if (fval == 0)
66    {
67      std::ifstream ifs(name);
68      s1.wait ();
69      ifs.close();
70      s2.signal ();
71      exit(0);
72    }
73
74  std::ofstream ofs(name);
75  s1.signal ();
76  s2.wait ();
77  ofs.put('t');
78
79  /*
80   * ISO/IED 14882:1998(E) 27.8.1.10.4
81   *
82   * void close();
83   *
84   * Effects:  Calls rdbuf()->close() and, if that function fails
85   * (returns a null pointer), calls setstate(failbit)...
86   */
87  ofs.close();
88  if (!(ofs.rdstate() & std::ios::failbit))
89    {
90      test = false;
91      VERIFY( test );
92      unlink(name);
93      exit(-1);
94    }
95
96  unlink(name);
97}
98
99int
100main()
101{
102  test_04();
103  return 0;
104}
105
106
107