1// { dg-require-fork "" } 2// { dg-require-mkfifo "" } 3 4// Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2009 5// Free Software Foundation, Inc. 6// 7// This file is part of the GNU ISO C++ Library. This library is free 8// software; you can redistribute it and/or modify it under the 9// terms of the GNU General Public License as published by the 10// Free Software Foundation; either version 3, or (at your option) 11// any later version. 12 13// This library is distributed in the hope that it will be useful, 14// but WITHOUT ANY WARRANTY; without even the implied warranty of 15// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16// GNU General Public License for more details. 17 18// You should have received a copy of the GNU General Public License along 19// with this library; see the file COPYING3. If not see 20// <http://www.gnu.org/licenses/>. 21 22// 27.8.1.3 filebuf member functions 23// @require@ %-*.tst %-*.txt 24// @diff@ %-*.tst %-*.txt 25 26// various tests for filebuf::open() and filebuf::close() including 27// the non-portable functionality in the libstdc++-v3 IO library 28 29#include <fstream> 30#include <cstdlib> 31#include <unistd.h> 32#include <signal.h> 33#include <fcntl.h> 34#include <sys/types.h> 35#include <sys/stat.h> 36 37// No asserts, avoid leaking the semaphores if a VERIFY fails. 38#undef _GLIBCXX_ASSERT 39 40#include <testsuite_hooks.h> 41 42// libstdc++/9964 43bool test_07() 44{ 45 using namespace std; 46 using namespace __gnu_test; 47 bool test __attribute__((unused)) = true; 48 semaphore s1, s2; 49 50 const char* name = "tmp_fifo3"; 51 52 signal(SIGPIPE, SIG_IGN); 53 54 unlink(name); 55 mkfifo(name, S_IRWXU); 56 57 int child = fork(); 58 VERIFY( child != -1 ); 59 60 if (child == 0) 61 { 62 filebuf fbin; 63 fbin.open(name, ios_base::in); 64 s1.wait(); 65 fbin.close(); 66 s2.signal(); 67 exit(0); 68 } 69 70 filebuf fb; 71 filebuf* ret = fb.open(name, ios_base::in | ios_base::out); 72 VERIFY( ret != NULL ); 73 VERIFY( fb.is_open() ); 74 s1.signal(); 75 s2.wait(); 76 fb.sputc('a'); 77 78 ret = fb.close(); 79 VERIFY( ret != NULL ); 80 VERIFY( !fb.is_open() ); 81 82 return test; 83} 84 85int 86main() 87{ 88 return !test_07(); 89} 90