| // { dg-require-fork "" } |
| // { dg-require-mkfifo "" } |
| |
| // 2006-03-22 Paolo Carlini <pcarlini@suse.de> |
| |
| // Copyright (C) 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. |
| |
| // No asserts, avoid leaking the semaphores if a VERIFY fails. |
| #undef _GLIBCXX_ASSERT |
| |
| #include <testsuite_hooks.h> |
| #include <fstream> |
| #include <sstream> |
| #include <unistd.h> |
| #include <signal.h> |
| #include <fcntl.h> |
| #include <sys/types.h> |
| #include <sys/stat.h> |
| |
| // libstdc++/26777 |
| bool test01() |
| { |
| using namespace std; |
| using namespace __gnu_test; |
| |
| bool test __attribute__((unused)) = true; |
| |
| const char* name = "tmp_fifo6"; |
| |
| signal(SIGPIPE, SIG_IGN); |
| |
| unlink(name); |
| mkfifo(name, S_IRWXU); |
| semaphore s1, s2; |
| |
| int child = fork(); |
| VERIFY( child != -1 ); |
| |
| if (child == 0) |
| { |
| filebuf fbout; |
| fbout.open(name, ios_base::in | ios_base::out); |
| VERIFY( fbout.is_open() ); |
| fbout.sputn("Whatever", 8); |
| fbout.pubsync(); |
| s1.signal(); |
| s2.wait(); |
| fbout.close(); |
| s1.signal(); |
| exit(0); |
| } |
| |
| filebuf fbin; |
| fbin.open(name, ios::in); |
| s1.wait(); |
| |
| fbin.sgetc(); |
| fbin.pubseekoff(0, ios::cur, ios::in); |
| s2.signal(); |
| s1.wait(); |
| |
| ostringstream oss; |
| oss << &fbin; |
| fbin.close(); |
| |
| VERIFY( oss.str() == "Whatever" ); |
| |
| return test; |
| } |
| |
| int main() |
| { |
| return !test01(); |
| } |