<systemlib/err.h> --> "systemlib/err.h" that fix_headers.sh
would miss because it comes after code it doesn't understand.
Effectively remove the '__EXPORT extern perf_counter_t perf_alloc('
line, because currently perf_alloc is defined to be NULL, and
after running fix_headers.sh that happens *before* this header
is included (the order of headers will be changed).
Do not define NULL to be (void*)0: that only works for C.
In fact, the conversions needed for NULL are so full of exceptions
that standard C++ introduced a new *keyword*: nullptr.
That's what we really should be using for C++ code.
In this case I just include the correct header to define NULL
the correct way.
Not really related to the header line:
Removed an #include <time.h> because I noted that px4_time.h
was already included... and moved a #include <sys/time.h>
to the top of the file (not really a fan of including headers
in the middle unless absolutely necessary).
Removed a include of queue.h because I noted it wasn't used.
The simulated timer interrupt always adds a new scheduled work task, which
is called from the work queue thread. Sending the signal creates measurable
overhead (~5% of the px4 CPU runtime) and is unnecessary, since the thread
is not sleeping anyway.
It makes more sense to set the optimization flags on a platform basis
instead of individually for each module. This allows for different
optimization options for SITL, NuttX, Snapdragon, etc.
Added PX4_BACKTRACE() to display stack trace for debugging
Added backtrace for HRT reschedule with 0 timeout
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
The SIGCONT signal was being ignored by the HRT queue thread so the
usleep was not waking up early to process new work.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
The POSIX and QURT platforms contain several duplicate files.
These files have been factored out into platforms/posix/work_queue.
The config files have been updated to include the
platforms/posix/work_queue module.
Signed-off-by: Mark Charlebois <charlebm@gmail.com>
Lorenz Meier