| 440 | } |
| 441 | |
| 442 | void compose_total_cancellation_test() |
| 443 | { |
| 444 | namespace bindns = std; |
| 445 | using bindns::placeholders::_1; |
| 446 | |
| 447 | boost::asio::io_context ioc; |
| 448 | boost::asio::system_timer timer(ioc); |
| 449 | boost::asio::cancellation_signal signal; |
| 450 | int count = 0; |
| 451 | bool result = false; |
| 452 | |
| 453 | async_cancellable(boost::asio::enable_total_cancellation(), timer, |
| 454 | bindns::bind(&compose_partial_cancellation_handler, |
| 455 | &count, &result, _1)); |
| 456 | |
| 457 | ioc.run(); |
| 458 | |
| 459 | // No cancellation, operation completes successfully. |
| 460 | |
| 461 | BOOST_ASIO_CHECK(ioc.stopped()); |
| 462 | BOOST_ASIO_CHECK(count == 1); |
| 463 | BOOST_ASIO_CHECK(result == true); |
| 464 | |
| 465 | ioc.restart(); |
| 466 | count = 0; |
| 467 | result = 0; |
| 468 | |
| 469 | async_cancellable(boost::asio::enable_total_cancellation(), timer, |
| 470 | boost::asio::bind_cancellation_slot(signal.slot(), |
| 471 | bindns::bind(&compose_partial_cancellation_handler, |
| 472 | &count, &result, _1))); |
| 473 | |
| 474 | // Total cancellation works. Operation completes with failure. |
| 475 | signal.emit(boost::asio::cancellation_type::total); |
| 476 | |
| 477 | ioc.run(); |
| 478 | |
| 479 | BOOST_ASIO_CHECK(ioc.stopped()); |
| 480 | BOOST_ASIO_CHECK(count == 1); |
| 481 | BOOST_ASIO_CHECK(result == false); |
| 482 | |
| 483 | ioc.restart(); |
| 484 | count = 0; |
| 485 | result = 0; |
| 486 | |
| 487 | async_cancellable(boost::asio::enable_total_cancellation(), timer, |
| 488 | boost::asio::bind_cancellation_slot(signal.slot(), |
| 489 | bindns::bind(&compose_partial_cancellation_handler, |
| 490 | &count, &result, _1))); |
| 491 | |
| 492 | // Partial cancellation works. Operation completes with failure. |
| 493 | signal.emit(boost::asio::cancellation_type::partial); |
| 494 | |
| 495 | ioc.run(); |
| 496 | |
| 497 | BOOST_ASIO_CHECK(ioc.stopped()); |
| 498 | BOOST_ASIO_CHECK(count == 1); |
| 499 | BOOST_ASIO_CHECK(result == false); |