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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [libstdc++-v3/] [testsuite/] [27_io/] [basic_filebuf/] [seekoff/] [char/] [26777.cc] - Rev 19
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// { dg-require-fork "" } // { dg-require-mkfifo "" } // 2006-03-22 Paolo Carlini <pcarlini@suse.de> // Copyright (C) 2006 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 2, 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 COPYING. If not, write to the Free // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, // USA. #include <testsuite_hooks.h> #include <fstream> #include <sstream> #include <unistd.h> #include <signal.h> #include <fcntl.h> #include <sys/types.h> #include <sys/stat.h> // libstdc++/26777 void 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" ); } int main() { test01(); return 0; }