This function is intended for use when the content is a static const variable.
It allows gzipped static data, but doesn't provide the functionality to ungzip
it if the client doesn't support gzip. This is because it would add a
dependency on zlib and basically all clients support gzip.
Change extraHeader on all Send functions to include the final newline,
this makes it easier to build up extra headers incrementally.
Expose sig::Connection for messageComplete and headerConn to allow them to
be disconnected by users of the class. This is commonly needed for things
like WebSocket upgrades.
Notifier has one thread per instance because the callbacks must be
asynchronous. Watchdog callbacks can be synchronous, so this overhead
can be done away with via a scheduler thread akin to what the HAL
Notifier does.
Imported from https://github.com/akrzemi1/Optional with minor changes:
- Compiler conditional simplifications (we only use recent versions)
- Move from std::experimental to wpi namespace
- Change tests to integrate with Google Test
Update LLVM use cases.
This allows save and restore of camera settings. The restore is a bit
smarter than the save.
* Fix mime types in mjpeg server
* wpiutil: WPI_LOG: Make sure level is an unsigned int
This is set to the FPGA clock by HAL_Initialize. Note this change means
that libuv loops should not be started until after HAL_Initialize is called (on the Rio).
Non-Rio functionality is unchanged.
Static destruction order is not well defined, so it was possible for outs()
or errs() return value to be destroyed even while other code was running,
resulting in a crash. Instead dynamically allocate the static so the
destructor never runs. While this technically leaks, valgrind generally
supresses such leaks as the data is still "reachable" from the static pointer.
Other handles can only be used within the loop itself, but Async is intended
to be used from another thread. This introduces the possibility of a race
condition between the loop being destroyed and the Async being destroyed.
Change Async to keep a weak reference to a loop and check it before performing
libuv operations.
This allows the called function to pass along the promise to another
asynchronous callback.
To avoid memory allocations, add a home-rolled, simplified, non-allocating
version of std::promise and std::future as wpi::promise and wpi::future.
Make wpi::condition_variable typedef to std::condition_variable_any if
wpi::mutex typedefs to priority_mutex.
priority_condition_variable was originally intended as a copy of
std::condition_variable_any that also returned the internal handle like
std::condition_variable. This was needed because NetComm required a
pthread_cond_t. We no longer use it anywhere.
Its args were specialized for priority_mutex, but
std::condition_variable_any supports this and more through
templatization.
This is a breaking change as it makes Async a template (e.g. Async<> must
be used instead of just Async). When data parameters are provided, an
internal mutex and vector is used to hold the parameter packs until the loop
runs.
