Add system's polling infrastructure to be notified whenever a
file descriptor is ready to be read from or written to.
Adds a few classes:
* Poller, as an interface to epoll()
* Pollable, as an interface to a file descriptor
Replace the previous not-implemented interface with a set of new methods
that can be resonably implemented:
- register_periodic_callback() now receives a functor returning bool
to easily allow "oneshot" timers
- adjust_periodic_callback() allows the caller to change the timer
for a specific handle. This way drivers like MS5611 can adjust the
timer depending on its state machine: the time to sample
temperature is smaller than the time to get a pressure sample
- add unregister_callback(): since we have an opaque pointer, we
can't tell the user to just delete it in order to unregister the
callback
../../libraries/AP_HAL_Linux/SPIDevice.cpp: In member function ‘virtual AP_HAL::OwnPtr<AP_HAL::SPIDevice> Linux::SPIDeviceManager::get_device(const char*)’:
../../libraries/AP_HAL_Linux/SPIDevice.cpp:337:27: warning: comparison is always false due to limited range of data type [-Wtype-limits]
for (uint8_t i = 0; i < _n_device_desc; i++) {
~~^~~~~~~~~~~~~~~~
Define a dummy device to remove warning.
This centralized private header encourages centralizing things on
umbrella headers that are a pain to maintain. Force each part of
AP_HAL_Linux to include what is used.
Make some member variables protected to follow what we do in other
places (and there's no reason to be private).
Move defines to .cpp to reduce their visibility.
This centralized namespace header encourages centralizing things on
umbrella headers that are a pain to maintain. Force each part of
AP_HAL_Linux to include what is used.
While at it, do some whitespace cleanups and minor changes to adhere to
coding style.
There was a bug on Waf's autoconfigure feature: if one of the files from the
cached list was deleted, the reconfiguration check would raise an exception
instead of forcing a reconfiguration. This update cherry-picks the commits
fixing that. A rebase can be done when there is a new release.
This is the only user of ADS7844 - we don't have it actually used in our
boards. Remove the example since we can later add a more generic one or
at least one that reuses a driver from our boards.
This method is needed when we want to transfer both tx and rx at the
same time, as opposed to common cases for sensors in which they are like
in the I2C interface: half-duplex.
This is selectable by a define and is never changed. Just remove
everything referencing it: we can come up with a better solution if it
is actually used later.
Otherwise, a call like `waf configure --board <foo> <command1>` will make
`<command1>` run on wrong variant if there was a different variant configured
previously, or an empty variant if the project is "distcleaned".
Leandro Pereira
Lucas De Marchi
Gustavo Jose de Sousa
Luiz Ywata
Peter Barker
Jonathan Challinger
murata
Andrew Tridgell
mirkix