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1 // { dg-require-fork "" }
2 // { dg-require-mkfifo "" }
3
4 // 2003-04-26 Petur Runolfsson <peturr02@ru.is>
5
6 // Copyright (C) 2003-2018 Free Software Foundation, Inc.
7 //
8 // This file is part of the GNU ISO C++ Library. This library is free
9 // software; you can redistribute it and/or modify it under the
10 // terms of the GNU General Public License as published by the
11 // Free Software Foundation; either version 3, or (at your option)
12 // any later version.
13
14 // This library is distributed in the hope that it will be useful,
15 // but WITHOUT ANY WARRANTY; without even the implied warranty of
16 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 // GNU General Public License for more details.
18
19 // You should have received a copy of the GNU General Public License along
20 // with this library; see the file COPYING3. If not see
21 // <http://www.gnu.org/licenses/>.
22
23 // 27.3 Standard iostream objects
24
25 #include <fstream>
26 #include <iostream>
27 #include <cstdlib>
28 #include <unistd.h>
29 #include <signal.h>
30 #include <fcntl.h>
31 #include <sys/types.h>
32 #include <sys/stat.h>
33 #include <testsuite_hooks.h>
34
35 // Check that cout.flush() is called when last ios_base::Init is destroyed.
36 bool test07()
37 {
38 using namespace std;
39 using namespace __gnu_test;
40 bool test = true;
41
42 const char* name = "tmp_fifo4";
43
44 signal(SIGPIPE, SIG_IGN);
45
46 unlink(name);
47 mkfifo(name, S_IRWXU);
48 semaphore s1;
49
50 int child = fork();
51 test &= bool( child != -1 );
52
53 if (child == 0)
54 {
55 filebuf fbout;
56 fbout.open(name, ios_base::in|ios_base::out);
57 test &= bool( fbout.is_open() );
58 s1.wait();
59 cout.rdbuf(&fbout);
60 fbout.sputc('a');
61 // NB: fbout is *not* destroyed here!
62 exit(0);
63 }
64
65 filebuf fbin;
66 fbin.open(name, ios_base::in);
67 s1.signal();
68 filebuf::int_type c = fbin.sbumpc();
69 test &= bool( c != filebuf::traits_type::eof() );
70 test &= bool( c == filebuf::traits_type::to_int_type('a') );
71
72 fbin.close();
73
74 return test;
75 }
76
77 int
78 main()
79 {
80 return !test07();
81 }