* Adds support for terminal and partial cancellation to async_run.
* Makes basic_connection::cancel use per-operation cancellation under the hood.
* Fixes a number of race conditions during cancellation which could cause the cancellation to be ignored. This could happen if the cancellation is delivered while an async handler is pending execution.
* Deprecates operation::{resolve, connect, ssl_handshake, reconnection, health_check}, in favor of operation::run. Calling basic_connection::cancel with these values (excepting reconnection) is now equivalent to using operation::run.
* Fixes a problem in the health checker that caused ping timeouts to be reported as cancellations.
* Sanitizes how the parallel group computes its final error code.
* Simplifies the reader, writer and health checker to not care about connection cancellation. This is now the responsibility of the parallel group.
* Removes an unnecessary setup_cancellation action in the reader FSM.
* Adds documentation regarding per-operation cancellation to async_receive.
* Adds additional health checker tests.
* Adds async_run per-operation cancellation tests.
* Adds reader FSM cancellation tests.
* Makes test_conn_exec_retry tests more resilient.
* Removes leftovers in the UNIX and TLS reconnection tests. These were required due to race conditions that have already been fixed.
close#318close#319
Updates multiplexer to make requests complete with error_code() rather than error_code(0)
Integration tests now use io_context::run_for to run with a timeout and avoid deadlocks
Tests now use concrete lambdas where generic ones are not required
Tests now use BOOST_TEST with operator== to print values on error
Tests now use anonymous namespaces to detect dead code
Adds run_coroutine_test and removed start from common.hpp
Updates test_reconnect to perform relevant checks
Refactors how test_issue_50 launches its coroutines
Groups tests in CMake as unit or integration
Updates Jamfile tests to contain all unit tests and only unit tests
