1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
// { dg-require-fork "" }
// { dg-require-mkfifo "" }
// 2003-04-26 Petur Runolfsson <peturr02@ru.is>
// Copyright (C) 2003, 2004, 2005, 2006, 2007, 2009
// 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 3, 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 COPYING3. If not see
// <http://www.gnu.org/licenses/>.
// 27.3 Standard iostream objects
#include <fstream>
#include <iostream>
#include <cstdlib>
#include <unistd.h>
#include <signal.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
// No asserts, avoid leaking the semaphore if a VERIFY fails.
#undef _GLIBCXX_ASSERT
#include <testsuite_hooks.h>
// Check that cout.flush() is called when last ios_base::Init is destroyed.
bool 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)
{
filebuf fbout;
fbout.open(name, ios_base::in|ios_base::out);
VERIFY( fbout.is_open() );
s1.wait();
cout.rdbuf(&fbout);
fbout.sputc('a');
// NB: fbout is *not* destroyed here!
exit(0);
}
filebuf fbin;
fbin.open(name, ios_base::in);
s1.signal();
filebuf::int_type c = fbin.sbumpc();
VERIFY( c != filebuf::traits_type::eof() );
VERIFY( c == filebuf::traits_type::to_int_type('a') );
fbin.close();
return test;
}
int
main()
{
return !test07();
}
|
