| // { dg-do run { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-gnu* *-*-solaris* *-*-cygwin *-*-darwin* powerpc-ibm-aix* } } |
| // { dg-options " -std=gnu++0x -pthread" { target *-*-freebsd* *-*-netbsd* *-*-linux* *-*-gnu* powerpc-ibm-aix* } } |
| // { dg-options " -std=gnu++0x -pthreads" { target *-*-solaris* } } |
| // { dg-options " -std=gnu++0x " { target *-*-cygwin *-*-darwin* } } |
| // { dg-require-cstdint "" } |
| // { dg-require-gthreads "" } |
| // { dg-require-atomic-builtins "" } |
| |
| // Copyright (C) 2009-2014 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/>. |
| |
| #include <future> |
| #include <testsuite_hooks.h> |
| |
| |
| // Test promise::set_value() for deadlock by checking if the state is ready |
| // during construction and destruction of the associated state. |
| |
| struct tester |
| { |
| tester(int); |
| tester(const tester&); |
| tester() = delete; |
| tester& operator=(const tester&); |
| }; |
| |
| std::promise<tester> pglobal; |
| std::future<tester> fglobal = pglobal.get_future(); |
| |
| auto delay = std::chrono::milliseconds(1); |
| |
| tester::tester(int) |
| { |
| bool test __attribute__((unused)) = true; |
| VERIFY (fglobal.wait_for(delay) == std::future_status::timeout); |
| } |
| |
| tester::tester(const tester&) |
| { |
| bool test __attribute__((unused)) = true; |
| // if this copy happens while a mutex is locked next line could deadlock: |
| VERIFY (fglobal.wait_for(delay) == std::future_status::timeout); |
| } |
| |
| tester& tester::operator=(const tester&) |
| { |
| bool test __attribute__((unused)) = true; |
| // if this copy happens while a mutex is locked next line could deadlock: |
| VERIFY (fglobal.wait_for(delay) == std::future_status::timeout); |
| return *this; |
| } |
| |
| void test01() |
| { |
| bool test __attribute__((unused)) = true; |
| |
| pglobal.set_value( tester(1) ); |
| |
| VERIFY (fglobal.wait_for(delay) == std::future_status::ready); |
| } |
| |
| int main() |
| { |
| test01(); |
| return 0; |
| } |