1// { dg-require-fork "" } 2// { dg-require-mkfifo "" } 3 4// Copyright (C) 2001-2015 Free Software Foundation, Inc. 5// 6// This file is part of the GNU ISO C++ Library. This library is free 7// software; you can redistribute it and/or modify it under the 8// terms of the GNU General Public License as published by the 9// Free Software Foundation; either version 3, or (at your option) 10// any later version. 11 12// This library is distributed in the hope that it will be useful, 13// but WITHOUT ANY WARRANTY; without even the implied warranty of 14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15// GNU General Public License for more details. 16 17// You should have received a copy of the GNU General Public License along 18// with this library; see the file COPYING3. If not see 19// <http://www.gnu.org/licenses/>. 20 21// 27.8.1.3 filebuf member functions 22// @require@ %-*.tst %-*.txt 23// @diff@ %-*.tst %-*.txt 24 25// various tests for filebuf::open() and filebuf::close() including 26// the non-portable functionality in the libstdc++-v3 IO library 27 28#include <fstream> 29#include <cstdlib> 30#include <unistd.h> 31#include <signal.h> 32#include <fcntl.h> 33#include <sys/types.h> 34#include <sys/stat.h> 35 36// No asserts, avoid leaking the semaphores if a VERIFY fails. 37#undef _GLIBCXX_ASSERT 38 39#include <testsuite_hooks.h> 40 41// libstdc++/9964 42bool test_07() 43{ 44 using namespace std; 45 using namespace __gnu_test; 46 bool test __attribute__((unused)) = true; 47 semaphore s1, s2; 48 49 const char* name = "tmp_fifo3"; 50 51 signal(SIGPIPE, SIG_IGN); 52 53 unlink(name); 54 mkfifo(name, S_IRWXU); 55 56 int child = fork(); 57 VERIFY( child != -1 ); 58 59 if (child == 0) 60 { 61 filebuf fbin; 62 fbin.open(name, ios_base::in); 63 s1.wait(); 64 fbin.close(); 65 s2.signal(); 66 exit(0); 67 } 68 69 filebuf fb; 70 filebuf* ret = fb.open(name, ios_base::in | ios_base::out); 71 VERIFY( ret != 0 ); 72 VERIFY( fb.is_open() ); 73 s1.signal(); 74 s2.wait(); 75 fb.sputc('a'); 76 77 ret = fb.close(); 78 VERIFY( ret != 0 ); 79 VERIFY( !fb.is_open() ); 80 81 return test; 82} 83 84int 85main() 86{ 87 return !test_07(); 88} 89