lokinet/llarp/ev/ev_libuv.hpp
Thomas Winget 71bb0dd520 implement timers using libuv
So far only a bit of the code using timers has been modified to use
the new libuv-based timers.  Also only the non-Windows case has been
implemented.  Seems to be working though, so it's a good time to commit.
2019-12-18 13:11:13 -05:00

156 lines
2.9 KiB
C++

#ifndef LLARP_EV_LIBUV_HPP
#define LLARP_EV_LIBUV_HPP
#include <ev/ev.hpp>
#include <ev/pipe.hpp>
#include <uv.h>
#include <vector>
#include <functional>
#include <util/thread/logic.hpp>
#include <util/thread/queue.hpp>
#include <util/meta/memfn.hpp>
#include <map>
namespace libuv
{
struct Loop final : public llarp_ev_loop
{
typedef std::function< void(void) > Callback;
struct PendingTimer
{
uint64_t job_id;
llarp_time_t delay_ms;
Callback callback;
};
Loop();
bool
init() override;
int
run() override
{
return -1;
}
bool
running() const override;
void
update_time() override;
/// return false on socket error (non blocking)
bool
tcp_connect(llarp_tcp_connecter* tcp, const sockaddr* addr) override;
int
tick(int ms) override;
uint32_t
call_after_delay(llarp_time_t delay_ms,
std::function< void(void) > callback) override;
void
cancel_delayed_call(uint32_t job_id) override;
void
process_timer_queue();
void
process_cancel_queue();
void
do_timer_job(uint64_t job_id);
void
stop() override;
void
stopped() override;
void
CloseAll();
bool
udp_listen(llarp_udp_io* l, const sockaddr* src) override;
bool
udp_close(llarp_udp_io* l) override;
/// deregister event listener
bool
close_ev(llarp::ev_io*) override
{
return true;
}
bool
tun_listen(llarp_tun_io* tun) override;
llarp::ev_io*
create_tun(llarp_tun_io*) override
{
return nullptr;
}
bool
tcp_listen(llarp_tcp_acceptor* tcp, const sockaddr* addr) override;
bool
add_pipe(llarp_ev_pkt_pipe* p) override;
llarp::ev_io*
bind_tcp(llarp_tcp_acceptor*, const sockaddr*) override
{
return nullptr;
}
bool
add_ticker(std::function< void(void) > ticker) override;
/// register event listener
bool
add_ev(llarp::ev_io*, bool) override
{
return false;
}
void
set_logic(std::shared_ptr< llarp::Logic > l) override
{
m_Logic = l;
m_Logic->SetQueuer(llarp::util::memFn(&Loop::call_soon, this));
}
std::shared_ptr< llarp::Logic > m_Logic;
void
call_soon(std::function< void(void) > f) override;
private:
uv_loop_t m_Impl;
uv_timer_t* m_TickTimer;
uv_async_t m_WakeUp;
std::atomic< bool > m_Run;
uv_async_t m_LogicCaller;
using AtomicQueue_t = llarp::thread::Queue< std::function< void(void) > >;
AtomicQueue_t m_LogicCalls;
#ifdef LOKINET_DEBUG
uint64_t last_time;
uint64_t loop_run_count;
#endif
std::atomic< uint32_t > m_nextID;
std::map< uint32_t, Callback > m_pendingCalls;
llarp::thread::Queue< PendingTimer > m_timerQueue;
llarp::thread::Queue< uint32_t > m_timerCancelQueue;
};
} // namespace libuv
#endif