| // { dg-require-mkfifo "" } |
| |
| // Copyright (C) 2001, 2002, 2003, 2005 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 <unistd.h> |
| #include <signal.h> |
| #include <fcntl.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| #include <testsuite_hooks.h> |
| |
| // libstdc++/9507 |
| void test_06() |
| { |
| using namespace __gnu_test; |
| bool test __attribute__((unused)) = true; |
| const char* name = "tmp_fifo2"; |
| |
| signal(SIGPIPE, SIG_IGN); |
| |
| unlink(name); |
| mkfifo(name, S_IRWXU); |
| |
| std::filebuf fbuf; |
| // The use of ios_base::ate implies an attempt to seek on the file |
| // descriptor. The seek will fail. Thus, at the OS level, this |
| // call to "fbuf.open" will result in a call to "open" (which will |
| // succeed), a call to "lseek" (which will fail), and, finally, a |
| // call to "close" (which will succeed). Thus, after this call, the |
| // file should be closed. |
| std::filebuf* r = fbuf.open(name, |
| std::ios_base::in |
| | std::ios_base::out |
| | std::ios_base::ate); |
| if (r == NULL) |
| VERIFY( !fbuf.is_open() ); |
| else |
| VERIFY( fbuf.is_open() ); |
| } |
| |
| int |
| main() |
| { |
| test_06(); |
| return 0; |
| } |
| |
| |