lokinet/llarp/ev/ev.cpp

#include "ev.hpp"
#include <llarp/util/mem.hpp>
#include <llarp/util/str.hpp>

#include <cstddef>
#include <cstring>
#include <string_view>

// We libuv now
#include "ev_libuv.hpp"

namespace llarp
{
  EventLoop_ptr
  EventLoop::create(size_t queueLength)
  {
    return std::make_shared<llarp::uv::Loop>(queueLength);
  }
}  // namespace llarp
standardize include format and pragma once All #ifndef guards on headers have been removed, I think, in favor of #pragma once Headers are now included as `#include "filename"` if the included file resides in the same directory as the file including it, or any subdirectory therein. Otherwise they are included as `#include <project/top/dir/relative/path/filename>` The above does not include system/os headers. 2021-03-09 22:24:35 +00:00			`#include "ev.hpp"`
			`#include <llarp/util/mem.hpp>`
			`#include <llarp/util/str.hpp>`
Enable warnings as errors test criteria: - Built from clean on macOS 2018-11-06 22:48:17 +00:00
Refactor path build code 2019-06-17 23:19:39 +00:00			`#include <cstddef>`
			`#include <cstring>`
C++17 Compiles with C++17, replaces ghc::filesystem with std::filesystem, nonstd::optional with std::optional, and llarp::string_view with std::string_view. 2020-05-01 19:51:15 +00:00			`#include <string_view>`
Enable warnings as errors test criteria: - Built from clean on macOS 2018-11-06 22:48:17 +00:00
we libuv now 2019-06-14 01:36:31 +00:00			`// We libuv now`
standardize include format and pragma once All #ifndef guards on headers have been removed, I think, in favor of #pragma once Headers are now included as `#include "filename"` if the included file resides in the same directory as the file including it, or any subdirectory therein. Otherwise they are included as `#include <project/top/dir/relative/path/filename>` The above does not include system/os headers. 2021-03-09 22:24:35 +00:00			`#include "ev_libuv.hpp"`
start removing libuv 2018-04-30 13:18:57 +00:00
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 2021-03-02 02:06:20 +00:00			`namespace llarp`
Replace usage of new/delete with unique_ptr/stack allocation 2019-02-11 14:43:48 +00:00			`{`
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 2021-03-02 02:06:20 +00:00			`EventLoop_ptr`
			`EventLoop::create(size_t queueLength)`
Some Windows fixes (#1415) * Should fix some windows service issues * fix return condition inversion * Add some Trace level logging also make the logger actually respect the log level you set. * event loop should not queue things to itself... at present, logic thread queue continues until it is empty, so queueing things onto itself is just wasteful. * call_later(foreach thing) is better than foreach thing (call later) also if you already queued those things but they have not happened yet, there is no sense to queue them to happen again. * do not queue read on write finish, only on read finish * failure to start DNS server should be proper startup failure. without the DNS server working lokinet is...kinda pointless, right? * format * don't queue stuff to logic thread if in logic thread the thing that clears the queue...clears it. So you're just delaying and adding overhead. * windows unbound thread sleep instead of just busy-waiting also clang-format decided I can't have a blank line for some reason... * fix unbound async worker on windows 2020-10-21 13:06:43 +00:00			`{`
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 2021-03-02 02:06:20 +00:00			`return std::make_shared<llarp::uv::Loop>(queueLength);`
Some Windows fixes (#1415) * Should fix some windows service issues * fix return condition inversion * Add some Trace level logging also make the logger actually respect the log level you set. * event loop should not queue things to itself... at present, logic thread queue continues until it is empty, so queueing things onto itself is just wasteful. * call_later(foreach thing) is better than foreach thing (call later) also if you already queued those things but they have not happened yet, there is no sense to queue them to happen again. * do not queue read on write finish, only on read finish * failure to start DNS server should be proper startup failure. without the DNS server working lokinet is...kinda pointless, right? * format * don't queue stuff to logic thread if in logic thread the thing that clears the queue...clears it. So you're just delaying and adding overhead. * windows unbound thread sleep instead of just busy-waiting also clang-format decided I can't have a blank line for some reason... * fix unbound async worker on windows 2020-10-21 13:06:43 +00:00			`}`
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 2021-03-02 02:06:20 +00:00			`} // namespace llarp`