| // { dg-require-fork "" } |
| // { dg-require-mkfifo "" } |
| |
| // Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006 |
| // 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 2, 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 COPYING. If not, write to the Free |
| // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, |
| // USA. |
| |
| // 27.8.1.3 filebuf member functions |
| // @require@ %-*.tst %-*.txt |
| // @diff@ %-*.tst %-*.txt |
| |
| // various tests for filebuf::open() and filebuf::close() including |
| // the non-portable functionality in the libstdc++-v3 IO library |
| |
| #include <fstream> |
| #include <iostream> |
| #include <unistd.h> |
| #include <signal.h> |
| #include <fcntl.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| |
| // No asserts, avoid leaking the semaphores if a VERIFY fails. |
| #undef _GLIBCXX_ASSERT |
| |
| #include <testsuite_hooks.h> |
| |
| // libstdc++/2913, libstdc++/4879 |
| // John Fardo <jfardo@laurelnetworks.com>, Brad Garcia <garsh@attbi.com> |
| bool |
| test_04() |
| { |
| using namespace __gnu_test; |
| |
| bool test __attribute__((unused)) = true; |
| const char* name = "tmp_fifo1"; |
| semaphore s1, s2; |
| |
| signal(SIGPIPE, SIG_IGN); |
| |
| unlink(name); |
| if (0 != mkfifo(name, S_IRWXU)) |
| { |
| std::cerr << "failed to create fifo" << std::endl; |
| exit(-1); |
| } |
| |
| int fval = fork(); |
| if (fval == -1) |
| { |
| std::cerr << "failed to fork" << std::endl; |
| unlink(name); |
| return false; |
| } |
| else if (fval == 0) |
| { |
| std::ifstream ifs(name); |
| s1.wait(); |
| ifs.close(); |
| s2.signal(); |
| exit(0); |
| } |
| |
| std::ofstream ofs(name); |
| s1.signal(); |
| s2.wait(); |
| ofs.put('t'); |
| |
| /* |
| * ISO/IED 14882:1998(E) 27.8.1.10.4 |
| * |
| * void close(); |
| * |
| * Effects: Calls rdbuf()->close() and, if that function fails |
| * (returns a null pointer), calls setstate(failbit)... |
| */ |
| ofs.close(); |
| if (!(ofs.rdstate() & std::ios::failbit)) |
| { |
| test = false; |
| VERIFY( test ); |
| } |
| |
| unlink(name); |
| |
| return test; |
| } |
| |
| int |
| main() |
| { |
| return !test_04(); |
| } |