- the netmgr was not correctly being specified when creating the task
manager, and was cleaned up in the wrong order when shutting down.
- on freebsd, timer_test appears to be prone to failure if the
netmgr is set up and torn down before and after ever test case, but
less so if it's only set up once at the beginning and once at the
end.
This commit renames isctest {mctx,lctx} to test_{mctx,lctx} and cleans
up their usage in the individual unit tests. This allows embedding
library .c files directly into the unit tests.
Commit 09ac224c5c made dnssec-keygen
depend on libisccfg but the Visual Studio solution file was not updated
to reflect that change. Make sure the dnssec-keygen Visual Studio
project depends on the libisccfg project to prevent compilation issues
during parallel builds.
Intertwining release notes from different BIND releases in a single XML
file has caused confusion in the past due to different (and often
arbitrary) approaches to keeping/removing release notes from older
releases on different BIND branches. Divide doc/arm/notes.xml into
per-version sections to simplify determining the set of changes
introduced by a given release and to make adding/reviewing release notes
less error-prone.
With the netmgr in use, named may start answering queries before zones
are loaded. This can cause transient failures in system tests after
servers are restarted or reconfigured. This commit adds retry loops
and sleep statements where needed to address this problem.
Also incidentally silenced a clang warning.
- ns__client_request() is now called by netmgr with an isc_nmhandle_t
parameter. The handle can then be permanently associated with an
ns_client object.
- The task manager is paused so that isc_task events that may be
triggred during client processing will not fire until after the netmgr is
finished with it. Before any asynchronous event, the client MUST
call isc_nmhandle_ref(client->handle), to prevent the client from
being reset and reused while waiting for an event to process. When
the asynchronous event is complete, isc_nmhandle_unref(client->handle)
must be called to ensure the handle can be reused later.
- reference counting of client objects is now handled in the nmhandle
object. when the handle references drop to zero, the client's "reset"
callback is used to free temporary resources and reiniialize it,
whereupon the handle (and associated client) is placed in the
"inactive handles" queue. when the sysstem is shutdown and the
handles are cleaned up, the client's "put" callback is called to free
all remaining resources.
- because client allocation is no longer handled in the same way,
the '-T clienttest' option has now been removed and is no longer
used by any system tests.
- the unit tests require wrapping the isc_nmhandle_unref() function;
when LD_WRAP is supported, that is used. otherwise we link a
libwrap.so interposer library and use that.
This allows a task to be temporary disabled so that objects won't be
processed simultaneously by libuv events and isc_task events. When a
task is paused, currently running events may complete, but no further
event will added to the run queue will be executed until the task is
unpaused.
When a task manager is created, we can now specify an `isc_nm`
object to associate with it; thereafter when the task manager is
placed into exclusive mode, the network manager will be paused.
