lokinet/llarp/net
Jason Rhinelander 5b555ee5aa Replace libuv with uvw & related refactoring
- removes all the llarp_ev_* functions, replacing with methods/classes/functions in the llarp
  namespace.
- banish ev/ev.h to the void
- Passes various things by const lvalue ref, especially shared_ptr's that don't need to be copied
  (to avoid an atomic refcount increment/decrement).
- Add a llarp::UDPHandle abstract class for UDP handling
- Removes the UDP tick handler; code that needs tick can just do a separate handler on the event
  loop outside the UDP socket.
- Adds an "OwnedBuffer" which owns its own memory but is implicitly convertible to a llarp_buffer_t.
  This is mostly needed to take over ownership of buffers from uvw without copying them as,
  currently, uvw does its own allocation (pending some open upstream issues/PRs).
- Logic:
  - add `make_caller`/`call_forever`/`call_every` utility functions to abstract Call wrapping and
    dependent timed tasks.
  - Add inLogicThread() so that code can tell its inside the logic thread (typically for
    debugging assertions).
  - get rid of janky integer returns and dealing with cancellations on call_later: the other methods
    added here and the event loop code remove the need for them.
- Event loop:
  - redo everything with uvw instead of libuv
  - rename EventLoopWakeup::Wakeup to EventLoopWakeup::Trigger to better reflect what it does.
  - add EventLoopRepeater for repeated events, and replace the code that reschedules itself every
    time it is called with a repeater.
  - Split up `EventLoop::run()` into a non-virtual base method and abstract `run_loop()` methods;
    the base method does a couple extra setup/teardown things that don't need to be in the derived class.
  - udp_listen is replaced with ev->udp(...) which returns a new UDPHandle object rather that
    needing gross C-style-but-not-actually-C-compatible structs.
  - Remove unused register_poll_fd_(un)readable
  - Use shared_ptr for EventLoopWakeup rather than returning a raw pointer; uvw lets us not have to
    worry about having the event loop class maintain ownership of it.
  - Add factory EventLoop::create() function to create a default (uvw-based) event loop (previously
    this was one of the llarp_ev_blahblah unnamespaced functions).
  - ev_libuv: this is mostly rewritten; all of the glue code/structs, in particular, are gone as
    they are no longer needed with uvw.
- DNS:
  - Rename DnsHandler to DnsInterceptor to better describe what it does (this is the code that
    intercepts all DNS to the tun IP range for Android).
- endpoint:
  - remove unused "isolated network" code
  - remove distinct (but actually always the same) variables for router/endpoint logic objects
- llarp_buffer_t
  - make constructors type-safe against being called with points to non-size-1 values
- tun packet reading:
  - read all available packets off the device/file descriptor; previously we were reading one packet
    at a time then returning to the event loop to poll again.
  - ReadNextPacket() now returns a 0-size packet if the read would block (so that we can implement
    the previous point).
  - ReadNextPacket() now throws on I/O error
- Miscellaneous code cleanups/simplifications
2021-03-04 16:51:18 -04:00
..
address_info.cpp get rid of use of llarp::IpAddress from hotpaths 2021-02-22 10:01:05 -05:00
address_info.hpp feedback from tom. 2021-02-23 05:48:50 -05:00
exit_info.cpp Removed RPI definition 2020-05-17 21:28:25 -03:00
exit_info.hpp Config file improvements (#1397) 2020-10-07 18:22:58 -04:00
ip_address.cpp initial v6 exits 2021-02-16 10:59:57 -05:00
ip_address.hpp initial v6 exits 2021-02-16 10:59:57 -05:00
ip_packet.cpp Large collection of changes to make android work 2021-03-02 13:18:22 -05:00
ip_packet.hpp Replace libuv with uvw & related refactoring 2021-03-04 16:51:18 -04:00
ip_range_map.hpp Lns exits (#1407) 2020-10-21 05:39:01 -04:00
ip_range.cpp * rework exit codepath to allow multiple exits 2020-07-02 11:13:30 -04:00
ip_range.hpp feedback from jason 2021-03-02 07:20:29 -05:00
ip.cpp make format 2020-05-20 19:48:13 -03:00
ip.hpp initial v6 exits 2021-02-16 10:59:57 -05:00
net_bits.hpp SockAddr fixes and cleanups 2021-02-24 19:34:42 -04:00
net_if.hpp use lokimq workers instead of llarp:🧵:ThreadPool 2020-07-02 11:07:34 -04:00
net_int.cpp Large collection of changes to make android work 2021-03-02 13:18:22 -05:00
net_int.hpp tun code refactor (#1495) 2021-01-11 18:13:22 -05:00
net.cpp Large collection of changes to make android work 2021-03-02 13:18:22 -05:00
net.h
net.hpp Large collection of changes to make android work 2021-03-02 13:18:22 -05:00
route.cpp get rid of use of llarp::IpAddress from hotpaths 2021-02-22 10:01:05 -05:00
route.hpp initial route poking 2020-08-24 20:21:55 -04:00
sock_addr.cpp Large collection of changes to make android work 2021-03-02 13:18:22 -05:00
sock_addr.hpp Large collection of changes to make android work 2021-03-02 13:18:22 -05:00
uint128.hpp Config file improvements (#1397) 2020-10-07 18:22:58 -04:00