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// { dg-require-fork "" }
// { dg-require-mkfifo "" }
// 2006-03-22 Paolo Carlini <pcarlini@suse.de>
// Copyright (C) 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/>.
// No asserts, avoid leaking the semaphores if a VERIFY fails.
#undef _GLIBCXX_ASSERT
#include <testsuite_hooks.h>
#include <fstream>
#include <sstream>
#include <cstdlib>
#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();
}
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