| // Copyright (C) 2019-2021 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/>. |
| |
| // { dg-options "-std=gnu++2a" } |
| // { dg-add-options libatomic } |
| // { dg-do run { target c++2a } } |
| |
| #include <stop_token> |
| #include <testsuite_hooks.h> |
| |
| void |
| test01() |
| { |
| std::stop_source ssrc; |
| std::stop_token tok = ssrc.get_token(); |
| VERIFY(tok.stop_possible()); |
| VERIFY(!tok.stop_requested()); |
| |
| std::stop_token copy(tok); |
| VERIFY(copy == tok); |
| VERIFY(copy.stop_possible()); |
| VERIFY(!copy.stop_requested()); |
| VERIFY(tok.stop_possible()); |
| VERIFY(!tok.stop_requested()); |
| |
| std::stop_token move(std::move(tok)); |
| VERIFY(move != tok); |
| VERIFY(move == copy); |
| VERIFY(move.stop_possible()); |
| VERIFY(!move.stop_requested()); |
| VERIFY(!tok.stop_possible()); |
| VERIFY(!tok.stop_requested()); |
| VERIFY(copy.stop_possible()); |
| VERIFY(!copy.stop_requested()); |
| |
| ssrc.request_stop(); |
| VERIFY(move.stop_possible()); |
| VERIFY(move.stop_requested()); |
| VERIFY(!tok.stop_possible()); |
| VERIFY(!tok.stop_requested()); |
| VERIFY(copy.stop_possible()); |
| VERIFY(copy.stop_requested()); |
| |
| tok.swap(move); |
| VERIFY(tok == copy); |
| VERIFY(!move.stop_possible()); |
| VERIFY(!move.stop_requested()); |
| VERIFY(tok.stop_possible()); |
| VERIFY(tok.stop_requested()); |
| VERIFY(copy.stop_possible()); |
| VERIFY(copy.stop_requested()); |
| |
| swap(move, copy); |
| VERIFY(tok == move); |
| VERIFY(move.stop_possible()); |
| VERIFY(move.stop_requested()); |
| VERIFY(tok.stop_possible()); |
| VERIFY(tok.stop_requested()); |
| VERIFY(!copy.stop_possible()); |
| VERIFY(!copy.stop_requested()); |
| } |
| |
| void |
| test02() |
| { |
| std::stop_source src1, src2; |
| std::stop_token tok = src1.get_token(); |
| VERIFY(tok.stop_possible()); |
| VERIFY(!tok.stop_requested()); |
| |
| std::stop_token copy = src2.get_token(); |
| VERIFY(copy != tok); |
| copy = tok; |
| VERIFY(copy == tok); |
| copy = src2.get_token(); |
| VERIFY(copy != tok); |
| } |
| |
| void |
| test03() |
| { |
| // create stop_source |
| std::stop_source ssrc; |
| VERIFY(ssrc.stop_possible()); |
| VERIFY(!ssrc.stop_requested()); |
| |
| // create stop_token from stop_source |
| std::stop_token stok{ssrc.get_token()}; |
| VERIFY(ssrc.stop_possible()); |
| VERIFY(!ssrc.stop_requested()); |
| VERIFY(stok.stop_possible()); |
| VERIFY(!stok.stop_requested()); |
| |
| // register callback |
| bool cb1called{false}; |
| auto cb1 = [&]{ |
| cb1called = true; |
| }; |
| { |
| std::stop_callback scb1{stok, cb1}; |
| VERIFY(ssrc.stop_possible()); |
| VERIFY(!ssrc.stop_requested()); |
| VERIFY(stok.stop_possible()); |
| VERIFY(!stok.stop_requested()); |
| VERIFY(!cb1called); |
| } // unregister callback |
| |
| // register another callback |
| bool cb2called{false}; |
| auto cb2 = [&]{ |
| VERIFY(stok.stop_requested()); |
| cb2called = true; |
| }; |
| std::stop_callback scb2a{stok, cb2}; // copies cb2 |
| // std::stop_callback scb2b{stok, std::move(cb2)}; |
| VERIFY(ssrc.stop_possible()); |
| VERIFY(!ssrc.stop_requested()); |
| VERIFY(stok.stop_possible()); |
| VERIFY(!stok.stop_requested()); |
| VERIFY(!cb1called); |
| VERIFY(!cb2called); |
| |
| // request stop |
| auto b = ssrc.request_stop(); |
| VERIFY(b); |
| VERIFY(ssrc.stop_possible()); |
| VERIFY(ssrc.stop_requested()); |
| VERIFY(stok.stop_possible()); |
| VERIFY(stok.stop_requested()); |
| VERIFY(!cb1called); |
| VERIFY(cb2called); |
| |
| b = ssrc.request_stop(); |
| VERIFY(!b); |
| |
| // register another callback |
| bool cb3called{false}; |
| std::stop_callback scb3{stok, [&] |
| { |
| cb3called = true; |
| }}; |
| VERIFY(ssrc.stop_possible()); |
| VERIFY(ssrc.stop_requested()); |
| VERIFY(stok.stop_possible()); |
| VERIFY(stok.stop_requested()); |
| VERIFY(!cb1called); |
| VERIFY(cb2called); |
| VERIFY(cb3called); |
| } |
| |
| int main() |
| { |
| test01(); |
| test02(); |
| test03(); |
| } |