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// { dg-require-fork "" }
// { dg-require-mkfifo "" }
// Copyright (C) 2001-2019 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/>.
// 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 <cstdlib>
#include <unistd.h>
#include <signal.h>
#include <fcntl.h>
#include <sys/types.h>
#include <sys/stat.h>
#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 = 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;
}
unlink(name);
return test;
}
int
main()
{
return !test_04();
}
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