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diff --git a/3rdparty/asio/include/asio/detail/impl/kqueue_reactor.ipp b/3rdparty/asio/include/asio/detail/impl/kqueue_reactor.ipp
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+++ b/3rdparty/asio/include/asio/detail/impl/kqueue_reactor.ipp
@@ -0,0 +1,608 @@
+//
+// detail/impl/kqueue_reactor.ipp
+// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+//
+// Copyright (c) 2003-2024 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+// Copyright (c) 2005 Stefan Arentz (stefan at soze dot com)
+//
+// Distributed under the Boost Software License, Version 1.0. (See accompanying
+// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+//
+
+#ifndef ASIO_DETAIL_IMPL_KQUEUE_REACTOR_IPP
+#define ASIO_DETAIL_IMPL_KQUEUE_REACTOR_IPP
+
+#if defined(_MSC_VER) && (_MSC_VER >= 1200)
+# pragma once
+#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
+
+#include "asio/detail/config.hpp"
+
+#if defined(ASIO_HAS_KQUEUE)
+
+#include "asio/detail/kqueue_reactor.hpp"
+#include "asio/detail/scheduler.hpp"
+#include "asio/detail/throw_error.hpp"
+#include "asio/error.hpp"
+
+#if defined(__NetBSD__)
+# include <sys/param.h>
+#endif
+
+#include "asio/detail/push_options.hpp"
+
+#if defined(__NetBSD__) && __NetBSD_Version__ < 999001500
+# define ASIO_KQUEUE_EV_SET(ev, ident, filt, flags, fflags, data, udata) \
+ EV_SET(ev, ident, filt, flags, fflags, data, \
+ reinterpret_cast<intptr_t>(static_cast<void*>(udata)))
+#else
+# define ASIO_KQUEUE_EV_SET(ev, ident, filt, flags, fflags, data, udata) \
+ EV_SET(ev, ident, filt, flags, fflags, data, udata)
+#endif
+
+namespace asio {
+namespace detail {
+
+kqueue_reactor::kqueue_reactor(asio::execution_context& ctx)
+ : execution_context_service_base<kqueue_reactor>(ctx),
+ scheduler_(use_service<scheduler>(ctx)),
+ mutex_(ASIO_CONCURRENCY_HINT_IS_LOCKING(
+ REACTOR_REGISTRATION, scheduler_.concurrency_hint())),
+ kqueue_fd_(do_kqueue_create()),
+ interrupter_(),
+ shutdown_(false),
+ registered_descriptors_mutex_(mutex_.enabled())
+{
+ struct kevent events[1];
+ ASIO_KQUEUE_EV_SET(&events[0], interrupter_.read_descriptor(),
+ EVFILT_READ, EV_ADD, 0, 0, &interrupter_);
+ if (::kevent(kqueue_fd_, events, 1, 0, 0, 0) == -1)
+ {
+ asio::error_code error(errno,
+ asio::error::get_system_category());
+ asio::detail::throw_error(error);
+ }
+}
+
+kqueue_reactor::~kqueue_reactor()
+{
+ close(kqueue_fd_);
+}
+
+void kqueue_reactor::shutdown()
+{
+ mutex::scoped_lock lock(mutex_);
+ shutdown_ = true;
+ lock.unlock();
+
+ op_queue<operation> ops;
+
+ while (descriptor_state* state = registered_descriptors_.first())
+ {
+ for (int i = 0; i < max_ops; ++i)
+ ops.push(state->op_queue_[i]);
+ state->shutdown_ = true;
+ registered_descriptors_.free(state);
+ }
+
+ timer_queues_.get_all_timers(ops);
+
+ scheduler_.abandon_operations(ops);
+}
+
+void kqueue_reactor::notify_fork(
+ asio::execution_context::fork_event fork_ev)
+{
+ if (fork_ev == asio::execution_context::fork_child)
+ {
+ // The kqueue descriptor is automatically closed in the child.
+ kqueue_fd_ = -1;
+ kqueue_fd_ = do_kqueue_create();
+
+ interrupter_.recreate();
+
+ struct kevent events[2];
+ ASIO_KQUEUE_EV_SET(&events[0], interrupter_.read_descriptor(),
+ EVFILT_READ, EV_ADD, 0, 0, &interrupter_);
+ if (::kevent(kqueue_fd_, events, 1, 0, 0, 0) == -1)
+ {
+ asio::error_code ec(errno,
+ asio::error::get_system_category());
+ asio::detail::throw_error(ec, "kqueue interrupter registration");
+ }
+
+ // Re-register all descriptors with kqueue.
+ mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_);
+ for (descriptor_state* state = registered_descriptors_.first();
+ state != 0; state = state->next_)
+ {
+ if (state->num_kevents_ > 0)
+ {
+ ASIO_KQUEUE_EV_SET(&events[0], state->descriptor_,
+ EVFILT_READ, EV_ADD | EV_CLEAR, 0, 0, state);
+ ASIO_KQUEUE_EV_SET(&events[1], state->descriptor_,
+ EVFILT_WRITE, EV_ADD | EV_CLEAR, 0, 0, state);
+ if (::kevent(kqueue_fd_, events, state->num_kevents_, 0, 0, 0) == -1)
+ {
+ asio::error_code ec(errno,
+ asio::error::get_system_category());
+ asio::detail::throw_error(ec, "kqueue re-registration");
+ }
+ }
+ }
+ }
+}
+
+void kqueue_reactor::init_task()
+{
+ scheduler_.init_task();
+}
+
+int kqueue_reactor::register_descriptor(socket_type descriptor,
+ kqueue_reactor::per_descriptor_data& descriptor_data)
+{
+ descriptor_data = allocate_descriptor_state();
+
+ ASIO_HANDLER_REACTOR_REGISTRATION((
+ context(), static_cast<uintmax_t>(descriptor),
+ reinterpret_cast<uintmax_t>(descriptor_data)));
+
+ mutex::scoped_lock lock(descriptor_data->mutex_);
+
+ descriptor_data->descriptor_ = descriptor;
+ descriptor_data->num_kevents_ = 0;
+ descriptor_data->shutdown_ = false;
+
+ return 0;
+}
+
+int kqueue_reactor::register_internal_descriptor(
+ int op_type, socket_type descriptor,
+ kqueue_reactor::per_descriptor_data& descriptor_data, reactor_op* op)
+{
+ descriptor_data = allocate_descriptor_state();
+
+ ASIO_HANDLER_REACTOR_REGISTRATION((
+ context(), static_cast<uintmax_t>(descriptor),
+ reinterpret_cast<uintmax_t>(descriptor_data)));
+
+ mutex::scoped_lock lock(descriptor_data->mutex_);
+
+ descriptor_data->descriptor_ = descriptor;
+ descriptor_data->num_kevents_ = 1;
+ descriptor_data->shutdown_ = false;
+ descriptor_data->op_queue_[op_type].push(op);
+
+ struct kevent events[1];
+ ASIO_KQUEUE_EV_SET(&events[0], descriptor, EVFILT_READ,
+ EV_ADD | EV_CLEAR, 0, 0, descriptor_data);
+ if (::kevent(kqueue_fd_, events, 1, 0, 0, 0) == -1)
+ return errno;
+
+ return 0;
+}
+
+void kqueue_reactor::move_descriptor(socket_type,
+ kqueue_reactor::per_descriptor_data& target_descriptor_data,
+ kqueue_reactor::per_descriptor_data& source_descriptor_data)
+{
+ target_descriptor_data = source_descriptor_data;
+ source_descriptor_data = 0;
+}
+
+void kqueue_reactor::call_post_immediate_completion(
+ operation* op, bool is_continuation, const void* self)
+{
+ static_cast<const kqueue_reactor*>(self)->post_immediate_completion(
+ op, is_continuation);
+}
+
+void kqueue_reactor::start_op(int op_type, socket_type descriptor,
+ kqueue_reactor::per_descriptor_data& descriptor_data, reactor_op* op,
+ bool is_continuation, bool allow_speculative,
+ void (*on_immediate)(operation*, bool, const void*),
+ const void* immediate_arg)
+{
+ if (!descriptor_data)
+ {
+ op->ec_ = asio::error::bad_descriptor;
+ on_immediate(op, is_continuation, immediate_arg);
+ return;
+ }
+
+ mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
+
+ if (descriptor_data->shutdown_)
+ {
+ on_immediate(op, is_continuation, immediate_arg);
+ return;
+ }
+
+ if (descriptor_data->op_queue_[op_type].empty())
+ {
+ static const int num_kevents[max_ops] = { 1, 2, 1 };
+
+ if (allow_speculative
+ && (op_type != read_op
+ || descriptor_data->op_queue_[except_op].empty()))
+ {
+ if (op->perform())
+ {
+ descriptor_lock.unlock();
+ on_immediate(op, is_continuation, immediate_arg);
+ return;
+ }
+
+ if (descriptor_data->num_kevents_ < num_kevents[op_type])
+ {
+ struct kevent events[2];
+ ASIO_KQUEUE_EV_SET(&events[0], descriptor, EVFILT_READ,
+ EV_ADD | EV_CLEAR, 0, 0, descriptor_data);
+ ASIO_KQUEUE_EV_SET(&events[1], descriptor, EVFILT_WRITE,
+ EV_ADD | EV_CLEAR, 0, 0, descriptor_data);
+ if (::kevent(kqueue_fd_, events, num_kevents[op_type], 0, 0, 0) != -1)
+ {
+ descriptor_data->num_kevents_ = num_kevents[op_type];
+ }
+ else
+ {
+ op->ec_ = asio::error_code(errno,
+ asio::error::get_system_category());
+ on_immediate(op, is_continuation, immediate_arg);
+ return;
+ }
+ }
+ }
+ else
+ {
+ if (descriptor_data->num_kevents_ < num_kevents[op_type])
+ descriptor_data->num_kevents_ = num_kevents[op_type];
+
+ struct kevent events[2];
+ ASIO_KQUEUE_EV_SET(&events[0], descriptor, EVFILT_READ,
+ EV_ADD | EV_CLEAR, 0, 0, descriptor_data);
+ ASIO_KQUEUE_EV_SET(&events[1], descriptor, EVFILT_WRITE,
+ EV_ADD | EV_CLEAR, 0, 0, descriptor_data);
+ ::kevent(kqueue_fd_, events, descriptor_data->num_kevents_, 0, 0, 0);
+ }
+ }
+
+ descriptor_data->op_queue_[op_type].push(op);
+ scheduler_.work_started();
+}
+
+void kqueue_reactor::cancel_ops(socket_type,
+ kqueue_reactor::per_descriptor_data& descriptor_data)
+{
+ if (!descriptor_data)
+ return;
+
+ mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
+
+ op_queue<operation> ops;
+ for (int i = 0; i < max_ops; ++i)
+ {
+ while (reactor_op* op = descriptor_data->op_queue_[i].front())
+ {
+ op->ec_ = asio::error::operation_aborted;
+ descriptor_data->op_queue_[i].pop();
+ ops.push(op);
+ }
+ }
+
+ descriptor_lock.unlock();
+
+ scheduler_.post_deferred_completions(ops);
+}
+
+void kqueue_reactor::cancel_ops_by_key(socket_type,
+ kqueue_reactor::per_descriptor_data& descriptor_data,
+ int op_type, void* cancellation_key)
+{
+ if (!descriptor_data)
+ return;
+
+ mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
+
+ op_queue<operation> ops;
+ op_queue<reactor_op> other_ops;
+ while (reactor_op* op = descriptor_data->op_queue_[op_type].front())
+ {
+ descriptor_data->op_queue_[op_type].pop();
+ if (op->cancellation_key_ == cancellation_key)
+ {
+ op->ec_ = asio::error::operation_aborted;
+ ops.push(op);
+ }
+ else
+ other_ops.push(op);
+ }
+ descriptor_data->op_queue_[op_type].push(other_ops);
+
+ descriptor_lock.unlock();
+
+ scheduler_.post_deferred_completions(ops);
+}
+
+void kqueue_reactor::deregister_descriptor(socket_type descriptor,
+ kqueue_reactor::per_descriptor_data& descriptor_data, bool closing)
+{
+ if (!descriptor_data)
+ return;
+
+ mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
+
+ if (!descriptor_data->shutdown_)
+ {
+ if (closing)
+ {
+ // The descriptor will be automatically removed from the kqueue when it
+ // is closed.
+ }
+ else
+ {
+ struct kevent events[2];
+ ASIO_KQUEUE_EV_SET(&events[0], descriptor,
+ EVFILT_READ, EV_DELETE, 0, 0, 0);
+ ASIO_KQUEUE_EV_SET(&events[1], descriptor,
+ EVFILT_WRITE, EV_DELETE, 0, 0, 0);
+ ::kevent(kqueue_fd_, events, descriptor_data->num_kevents_, 0, 0, 0);
+ }
+
+ op_queue<operation> ops;
+ for (int i = 0; i < max_ops; ++i)
+ {
+ while (reactor_op* op = descriptor_data->op_queue_[i].front())
+ {
+ op->ec_ = asio::error::operation_aborted;
+ descriptor_data->op_queue_[i].pop();
+ ops.push(op);
+ }
+ }
+
+ descriptor_data->descriptor_ = -1;
+ descriptor_data->shutdown_ = true;
+
+ descriptor_lock.unlock();
+
+ ASIO_HANDLER_REACTOR_DEREGISTRATION((
+ context(), static_cast<uintmax_t>(descriptor),
+ reinterpret_cast<uintmax_t>(descriptor_data)));
+
+ scheduler_.post_deferred_completions(ops);
+
+ // Leave descriptor_data set so that it will be freed by the subsequent
+ // call to cleanup_descriptor_data.
+ }
+ else
+ {
+ // We are shutting down, so prevent cleanup_descriptor_data from freeing
+ // the descriptor_data object and let the destructor free it instead.
+ descriptor_data = 0;
+ }
+}
+
+void kqueue_reactor::deregister_internal_descriptor(socket_type descriptor,
+ kqueue_reactor::per_descriptor_data& descriptor_data)
+{
+ if (!descriptor_data)
+ return;
+
+ mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
+
+ if (!descriptor_data->shutdown_)
+ {
+ struct kevent events[2];
+ ASIO_KQUEUE_EV_SET(&events[0], descriptor,
+ EVFILT_READ, EV_DELETE, 0, 0, 0);
+ ASIO_KQUEUE_EV_SET(&events[1], descriptor,
+ EVFILT_WRITE, EV_DELETE, 0, 0, 0);
+ ::kevent(kqueue_fd_, events, descriptor_data->num_kevents_, 0, 0, 0);
+
+ op_queue<operation> ops;
+ for (int i = 0; i < max_ops; ++i)
+ ops.push(descriptor_data->op_queue_[i]);
+
+ descriptor_data->descriptor_ = -1;
+ descriptor_data->shutdown_ = true;
+
+ descriptor_lock.unlock();
+
+ ASIO_HANDLER_REACTOR_DEREGISTRATION((
+ context(), static_cast<uintmax_t>(descriptor),
+ reinterpret_cast<uintmax_t>(descriptor_data)));
+
+ // Leave descriptor_data set so that it will be freed by the subsequent
+ // call to cleanup_descriptor_data.
+ }
+ else
+ {
+ // We are shutting down, so prevent cleanup_descriptor_data from freeing
+ // the descriptor_data object and let the destructor free it instead.
+ descriptor_data = 0;
+ }
+}
+
+void kqueue_reactor::cleanup_descriptor_data(
+ per_descriptor_data& descriptor_data)
+{
+ if (descriptor_data)
+ {
+ free_descriptor_state(descriptor_data);
+ descriptor_data = 0;
+ }
+}
+
+void kqueue_reactor::run(long usec, op_queue<operation>& ops)
+{
+ mutex::scoped_lock lock(mutex_);
+
+ // Determine how long to block while waiting for events.
+ timespec timeout_buf = { 0, 0 };
+ timespec* timeout = usec ? get_timeout(usec, timeout_buf) : &timeout_buf;
+
+ lock.unlock();
+
+ // Block on the kqueue descriptor.
+ struct kevent events[128];
+ int num_events = kevent(kqueue_fd_, 0, 0, events, 128, timeout);
+
+#if defined(ASIO_ENABLE_HANDLER_TRACKING)
+ // Trace the waiting events.
+ for (int i = 0; i < num_events; ++i)
+ {
+ void* ptr = reinterpret_cast<void*>(events[i].udata);
+ if (ptr != &interrupter_)
+ {
+ unsigned event_mask = 0;
+ switch (events[i].filter)
+ {
+ case EVFILT_READ:
+ event_mask |= ASIO_HANDLER_REACTOR_READ_EVENT;
+ break;
+ case EVFILT_WRITE:
+ event_mask |= ASIO_HANDLER_REACTOR_WRITE_EVENT;
+ break;
+ }
+ if ((events[i].flags & (EV_ERROR | EV_OOBAND)) != 0)
+ event_mask |= ASIO_HANDLER_REACTOR_ERROR_EVENT;
+ ASIO_HANDLER_REACTOR_EVENTS((context(),
+ reinterpret_cast<uintmax_t>(ptr), event_mask));
+ }
+ }
+#endif // defined(ASIO_ENABLE_HANDLER_TRACKING)
+
+ // Dispatch the waiting events.
+ for (int i = 0; i < num_events; ++i)
+ {
+ void* ptr = reinterpret_cast<void*>(events[i].udata);
+ if (ptr == &interrupter_)
+ {
+ interrupter_.reset();
+ }
+ else
+ {
+ descriptor_state* descriptor_data = static_cast<descriptor_state*>(ptr);
+ mutex::scoped_lock descriptor_lock(descriptor_data->mutex_);
+
+ if (events[i].filter == EVFILT_WRITE
+ && descriptor_data->num_kevents_ == 2
+ && descriptor_data->op_queue_[write_op].empty())
+ {
+ // Some descriptor types, like serial ports, don't seem to support
+ // EV_CLEAR with EVFILT_WRITE. Since we have no pending write
+ // operations we'll remove the EVFILT_WRITE registration here so that
+ // we don't end up in a tight spin.
+ struct kevent delete_events[1];
+ ASIO_KQUEUE_EV_SET(&delete_events[0],
+ descriptor_data->descriptor_, EVFILT_WRITE, EV_DELETE, 0, 0, 0);
+ ::kevent(kqueue_fd_, delete_events, 1, 0, 0, 0);
+ descriptor_data->num_kevents_ = 1;
+ }
+
+ // Exception operations must be processed first to ensure that any
+ // out-of-band data is read before normal data.
+#if defined(__NetBSD__)
+ static const unsigned int filter[max_ops] =
+#else
+ static const int filter[max_ops] =
+#endif
+ { EVFILT_READ, EVFILT_WRITE, EVFILT_READ };
+ for (int j = max_ops - 1; j >= 0; --j)
+ {
+ if (events[i].filter == filter[j])
+ {
+ if (j != except_op || events[i].flags & EV_OOBAND)
+ {
+ while (reactor_op* op = descriptor_data->op_queue_[j].front())
+ {
+ if (events[i].flags & EV_ERROR)
+ {
+ op->ec_ = asio::error_code(
+ static_cast<int>(events[i].data),
+ asio::error::get_system_category());
+ descriptor_data->op_queue_[j].pop();
+ ops.push(op);
+ }
+ if (op->perform())
+ {
+ descriptor_data->op_queue_[j].pop();
+ ops.push(op);
+ }
+ else
+ break;
+ }
+ }
+ }
+ }
+ }
+ }
+
+ lock.lock();
+ timer_queues_.get_ready_timers(ops);
+}
+
+void kqueue_reactor::interrupt()
+{
+ interrupter_.interrupt();
+}
+
+int kqueue_reactor::do_kqueue_create()
+{
+ int fd = ::kqueue();
+ if (fd == -1)
+ {
+ asio::error_code ec(errno,
+ asio::error::get_system_category());
+ asio::detail::throw_error(ec, "kqueue");
+ }
+ return fd;
+}
+
+kqueue_reactor::descriptor_state* kqueue_reactor::allocate_descriptor_state()
+{
+ mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_);
+ return registered_descriptors_.alloc(ASIO_CONCURRENCY_HINT_IS_LOCKING(
+ REACTOR_IO, scheduler_.concurrency_hint()));
+}
+
+void kqueue_reactor::free_descriptor_state(kqueue_reactor::descriptor_state* s)
+{
+ mutex::scoped_lock descriptors_lock(registered_descriptors_mutex_);
+ registered_descriptors_.free(s);
+}
+
+void kqueue_reactor::do_add_timer_queue(timer_queue_base& queue)
+{
+ mutex::scoped_lock lock(mutex_);
+ timer_queues_.insert(&queue);
+}
+
+void kqueue_reactor::do_remove_timer_queue(timer_queue_base& queue)
+{
+ mutex::scoped_lock lock(mutex_);
+ timer_queues_.erase(&queue);
+}
+
+timespec* kqueue_reactor::get_timeout(long usec, timespec& ts)
+{
+ // By default we will wait no longer than 5 minutes. This will ensure that
+ // any changes to the system clock are detected after no longer than this.
+ const long max_usec = 5 * 60 * 1000 * 1000;
+ usec = timer_queues_.wait_duration_usec(
+ (usec < 0 || max_usec < usec) ? max_usec : usec);
+ ts.tv_sec = usec / 1000000;
+ ts.tv_nsec = (usec % 1000000) * 1000;
+ return &ts;
+}
+
+} // namespace detail
+} // namespace asio
+
+#undef ASIO_KQUEUE_EV_SET
+
+#include "asio/detail/pop_options.hpp"
+
+#endif // defined(ASIO_HAS_KQUEUE)
+
+#endif // ASIO_DETAIL_IMPL_KQUEUE_REACTOR_IPP