1// { dg-require-fork "" }
2// { dg-require-mkfifo "" }
3
4// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009
5// Free Software Foundation, Inc.
6//
7// This file is part of the GNU ISO C++ Library.  This library is free
8// software; you can redistribute it and/or modify it under the
9// terms of the GNU General Public License as published by the
10// Free Software Foundation; either version 3, or (at your option)
11// any later version.
12
13// This library is distributed in the hope that it will be useful,
14// but WITHOUT ANY WARRANTY; without even the implied warranty of
15// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16// GNU General Public License for more details.
17
18// You should have received a copy of the GNU General Public License along
19// with this library; see the file COPYING3.  If not see
20// <http://www.gnu.org/licenses/>.
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 <cstdlib>
31#include <unistd.h>
32#include <signal.h>
33#include <fcntl.h>
34#include <sys/types.h>
35#include <sys/stat.h>
36
37// No asserts, avoid leaking the semaphores if a VERIFY fails.
38#undef _GLIBCXX_ASSERT
39
40#include <testsuite_hooks.h>
41
42// libstdc++/9964
43bool test_07()
44{
45  using namespace std;
46  using namespace __gnu_test;
47  bool test __attribute__((unused)) = true;
48  semaphore s1, s2;
49
50  const char* name = "tmp_fifo3";
51
52  signal(SIGPIPE, SIG_IGN);
53
54  unlink(name);
55  mkfifo(name, S_IRWXU);
56
57  int child = fork();
58  VERIFY( child != -1 );
59
60  if (child == 0)
61    {
62      filebuf fbin;
63      fbin.open(name, ios_base::in);
64      s1.wait();
65      fbin.close();
66      s2.signal();
67      exit(0);
68    }
69
70  filebuf fb;
71  filebuf* ret = fb.open(name, ios_base::in | ios_base::out);
72  VERIFY( ret != NULL );
73  VERIFY( fb.is_open() );
74  s1.signal();
75  s2.wait();
76  fb.sputc('a');
77
78  ret = fb.close();
79  VERIFY( ret != NULL );
80  VERIFY( !fb.is_open() );
81
82  return test;
83}
84
85int
86main()
87{
88  return !test_07();
89}
90