Currently, about 5ms of every 20ms loop the DS thread would hold
the mutex, while grabbing data. During this time, and call to grab
joystick data would be blocked. This change grabs the joystick data
to a cache, and then grabs the mutex and moves the data references
around. This is much more efficient then the old code, and gives
teams more of their teleop loop time back for use.
Another major change this does is use preallocated arrays when entering
the JNI. Previously every JNI DS call would allocate an entire new array.
With a GC'd language where those arrays go on the heap, thats a problem,
and creates tons of garbage. That garbage is no longer created anymore,
as all arrays and byte buffers sent to JNI in the DS are preallocated.
In addition, GetJoystickName was always returning joystick 0 data, which
this fixes.
Fixes artf4809.
In both C++ and Java, error messages are being sent to both the console
(via stdout/stderr) and being reported via the HAL. We don't want to
remove the stdout/stderr reporting at present because users debugging only
via netconsole (e.g. using riolog) won't see the HAL-reported errors. Until
there's an alternative means to getting the HAL-reported errors to those
users, instead store the previous 5 error messages and don't duplicate them
more often than once per second.
Changes the error reporting from setErrorData() to sendError(), which
improves driver station error reporting. The "location" in C++ is given as
the immediate caller (e.g. the WPILib function). The "location" in Java is
given as the first user function in the call stack. Note the full call stack
is provided in both instances.
Change-Id: I590dd63dcb66825301ebb260aff00cd8d7d501ed
Years update, references to WIND_BASE were removed, and WPILib license was
moved to the root directory of the project.
If there was already a comment block, a year range through 2016 was created
using the first year in the comment. If there was no comment block, a block
with just the year 2016 was added.
Comments were not added to files from external sources (NI, CTRE).
Change-Id: Iff4f098ab908b90b8d929902dea903de2f596acc
Having the HAL take a NATIVE_MULTIWAIT_ID without any way to get that
structure from extern "C" code is a problem. This makes it so it just
takes a MULTIWAIT_ID, and then grabs the native handle inside the HAL.
Change-Id: I06da18ba34adcea2f16e4e53da672f38be79e28e
Signed-off-by: Dustin Spicuzza <dustin@virtualroadside.com>
This is a major restructuring of the WPILib repository to simply build
procedures and remove the remnants of Maven from everything except the
eclipse plugins. Gradle files have been largely simplified or rewritten,
taking advantage of splitting up parts of the build into separate build
files for ease of reading.
The eclipse plugins are now in a separate project, as is ntcore. All
dependencies are resolved via Maven dependencies, with the
Jenkins-maintained WPILib repo. Project structures have also been
simplified: we no longer have separate subprojects inside wpilibc and
wpilibj. Where possible, these changes hav been done with git renames,
to make sure we still have full history for all repositories. Other
unrelated subprojects have also been broken out: OutlineViewer is now a
separate project.
Change-Id: Ib4e2a6e1a2f66427a14f16612b0e0d69ed661878
