1// { dg-require-fork "" }
2// { dg-require-mkfifo "" }
3
4// Copyright (C) 2001-2015 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 3, 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 COPYING3.  If not see
19// <http://www.gnu.org/licenses/>.
20
21// 27.8.1.3 filebuf member functions
22// @require@ %-*.tst %-*.txt
23// @diff@ %-*.tst %-*.txt
24
25// various tests for filebuf::open() and filebuf::close() including
26// the non-portable functionality in the libstdc++-v3 IO library
27
28#include <fstream>
29#include <cstdlib>
30#include <unistd.h>
31#include <signal.h>
32#include <fcntl.h>
33#include <sys/types.h>
34#include <sys/stat.h>
35
36// No asserts, avoid leaking the semaphores if a VERIFY fails.
37#undef _GLIBCXX_ASSERT
38
39#include <testsuite_hooks.h>
40
41// libstdc++/9964
42bool test_07()
43{
44  using namespace std;
45  using namespace __gnu_test;
46  bool test __attribute__((unused)) = true;
47  semaphore s1, s2;
48
49  const char* name = "tmp_fifo3";
50
51  signal(SIGPIPE, SIG_IGN);
52
53  unlink(name);
54  mkfifo(name, S_IRWXU);
55
56  int child = fork();
57  VERIFY( child != -1 );
58
59  if (child == 0)
60    {
61      filebuf fbin;
62      fbin.open(name, ios_base::in);
63      s1.wait();
64      fbin.close();
65      s2.signal();
66      exit(0);
67    }
68
69  filebuf fb;
70  filebuf* ret = fb.open(name, ios_base::in | ios_base::out);
71  VERIFY( ret != 0 );
72  VERIFY( fb.is_open() );
73  s1.signal();
74  s2.wait();
75  fb.sputc('a');
76
77  ret = fb.close();
78  VERIFY( ret != 0 );
79  VERIFY( !fb.is_open() );
80
81  return test;
82}
83
84int
85main()
86{
87  return !test_07();
88}
89