libstdc++-v3/testsuite/27_io/basic_filebuf/close/char/9964.cc

   1 // { dg-require-fork "" }
   2 // { dg-require-mkfifo "" }
   3
   4 // Copyright (C) 2001, 2002, 2003, 2005 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 2, 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 COPYING.  If not, write to the Free
  19 // Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
  20 // USA.
  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 <unistd.h>
  31 #include <signal.h>
  32 #include <fcntl.h>
  33 #include <sys/types.h>
  34 #include <sys/stat.h>
  35 #include <testsuite_hooks.h>
  36
  37 // libstdc++/9964
  38 void test_07()
  39 {
  40   using namespace std;
  41   using namespace __gnu_test;
  42   bool test __attribute__((unused)) = true;
  43   semaphore s1, s2;
  44
  45   const char* name = "tmp_fifo3";
  46
  47   signal(SIGPIPE, SIG_IGN);
  48
  49   unlink(name);
  50   mkfifo(name, S_IRWXU);
  51
  52   int child = fork();
  53   VERIFY( child != -1 );
  54
  55   if (child == 0)
  56     {
  57       filebuf fbin;
  58       fbin.open(name, ios_base::in);
  59       s1.wait ();
  60       fbin.close();
  61       s2.signal ();
  62       exit(0);
  63     }
  64
  65   filebuf fb;
  66   filebuf* ret = fb.open(name, ios_base::in | ios_base::out);
  67   VERIFY( ret != NULL );
  68   VERIFY( fb.is_open() );
  69   s1.signal ();
  70   s2.wait ();
  71   fb.sputc('a');
  72
  73   ret = fb.close();
  74   VERIFY( ret != NULL );
  75   VERIFY( !fb.is_open() );
  76 }
  77
  78 int
  79 main()
  80 {
  81   test_07();
  82   return 0;
  83 }