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-rw-r--r--3rdparty/asio/include/asio/detail/signal_set_service.hpp105
1 files changed, 90 insertions, 15 deletions
diff --git a/3rdparty/asio/include/asio/detail/signal_set_service.hpp b/3rdparty/asio/include/asio/detail/signal_set_service.hpp
index 58ee99baf3b..142ff43851a 100644
--- a/3rdparty/asio/include/asio/detail/signal_set_service.hpp
+++ b/3rdparty/asio/include/asio/detail/signal_set_service.hpp
@@ -2,7 +2,7 @@
// detail/signal_set_service.hpp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
-// Copyright (c) 2003-2016 Christopher M. Kohlhoff (chris at kohlhoff dot com)
+// Copyright (c) 2003-2024 Christopher M. Kohlhoff (chris at kohlhoff 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)
@@ -19,8 +19,11 @@
#include <cstddef>
#include <signal.h>
+#include "asio/associated_cancellation_slot.hpp"
+#include "asio/cancellation_type.hpp"
#include "asio/error.hpp"
-#include "asio/io_context.hpp"
+#include "asio/execution_context.hpp"
+#include "asio/signal_set_base.hpp"
#include "asio/detail/handler_alloc_helpers.hpp"
#include "asio/detail/memory.hpp"
#include "asio/detail/op_queue.hpp"
@@ -28,8 +31,18 @@
#include "asio/detail/signal_op.hpp"
#include "asio/detail/socket_types.hpp"
+#if defined(ASIO_HAS_IOCP)
+# include "asio/detail/win_iocp_io_context.hpp"
+#else // defined(ASIO_HAS_IOCP)
+# include "asio/detail/scheduler.hpp"
+#endif // defined(ASIO_HAS_IOCP)
+
#if !defined(ASIO_WINDOWS) && !defined(__CYGWIN__)
-# include "asio/detail/reactor.hpp"
+# if defined(ASIO_HAS_IO_URING_AS_DEFAULT)
+# include "asio/detail/io_uring_service.hpp"
+# else // defined(ASIO_HAS_IO_URING_AS_DEFAULT)
+# include "asio/detail/reactor.hpp"
+# endif // defined(ASIO_HAS_IO_URING_AS_DEFAULT)
#endif // !defined(ASIO_WINDOWS) && !defined(__CYGWIN__)
#include "asio/detail/push_options.hpp"
@@ -48,7 +61,7 @@ extern ASIO_DECL struct signal_state* get_signal_state();
extern "C" ASIO_DECL void asio_signal_handler(int signal_number);
class signal_set_service :
- public service_base<signal_set_service>
+ public execution_context_service_base<signal_set_service>
{
public:
// Type used for tracking an individual signal registration.
@@ -109,7 +122,7 @@ public:
};
// Constructor.
- ASIO_DECL signal_set_service(asio::io_context& io_context);
+ ASIO_DECL signal_set_service(execution_context& context);
// Destructor.
ASIO_DECL ~signal_set_service();
@@ -119,7 +132,7 @@ public:
// Perform fork-related housekeeping.
ASIO_DECL void notify_fork(
- asio::io_context::fork_event fork_ev);
+ asio::execution_context::fork_event fork_ev);
// Construct a new signal_set implementation.
ASIO_DECL void construct(implementation_type& impl);
@@ -128,8 +141,16 @@ public:
ASIO_DECL void destroy(implementation_type& impl);
// Add a signal to a signal_set.
+ asio::error_code add(implementation_type& impl,
+ int signal_number, asio::error_code& ec)
+ {
+ return add(impl, signal_number, signal_set_base::flags::dont_care, ec);
+ }
+
+ // Add a signal to a signal_set with the specified flags.
ASIO_DECL asio::error_code add(implementation_type& impl,
- int signal_number, asio::error_code& ec);
+ int signal_number, signal_set_base::flags_t f,
+ asio::error_code& ec);
// Remove a signal to a signal_set.
ASIO_DECL asio::error_code remove(implementation_type& impl,
@@ -143,17 +164,32 @@ public:
ASIO_DECL asio::error_code cancel(implementation_type& impl,
asio::error_code& ec);
+ // Cancel a specific operation associated with the signal set.
+ ASIO_DECL void cancel_ops_by_key(implementation_type& impl,
+ void* cancellation_key);
+
// Start an asynchronous operation to wait for a signal to be delivered.
- template <typename Handler>
- void async_wait(implementation_type& impl, Handler& handler)
+ template <typename Handler, typename IoExecutor>
+ void async_wait(implementation_type& impl,
+ Handler& handler, const IoExecutor& io_ex)
{
+ associated_cancellation_slot_t<Handler> slot
+ = asio::get_associated_cancellation_slot(handler);
+
// Allocate and construct an operation to wrap the handler.
- typedef signal_handler<Handler> op;
+ typedef signal_handler<Handler, IoExecutor> op;
typename op::ptr p = { asio::detail::addressof(handler),
op::ptr::allocate(handler), 0 };
- p.p = new (p.v) op(handler);
+ p.p = new (p.v) op(handler, io_ex);
+
+ // Optionally register for per-operation cancellation.
+ if (slot.is_connected())
+ {
+ p.p->cancellation_key_ =
+ &slot.template emplace<signal_op_cancellation>(this, &impl);
+ }
- ASIO_HANDLER_CREATION((io_context_.context(),
+ ASIO_HANDLER_CREATION((scheduler_.context(),
*p.p, "signal_set", &impl, 0, "async_wait"));
start_wait_op(impl, p.p);
@@ -179,20 +215,59 @@ private:
// Helper function to start a wait operation.
ASIO_DECL void start_wait_op(implementation_type& impl, signal_op* op);
- // The io_context instance used for dispatching handlers.
- io_context_impl& io_context_;
+ // Helper class used to implement per-operation cancellation
+ class signal_op_cancellation
+ {
+ public:
+ signal_op_cancellation(signal_set_service* s, implementation_type* i)
+ : service_(s),
+ implementation_(i)
+ {
+ }
+
+ void operator()(cancellation_type_t type)
+ {
+ if (!!(type &
+ (cancellation_type::terminal
+ | cancellation_type::partial
+ | cancellation_type::total)))
+ {
+ service_->cancel_ops_by_key(*implementation_, this);
+ }
+ }
+
+ private:
+ signal_set_service* service_;
+ implementation_type* implementation_;
+ };
+
+ // The scheduler used for dispatching handlers.
+#if defined(ASIO_HAS_IOCP)
+ typedef class win_iocp_io_context scheduler_impl;
+#else
+ typedef class scheduler scheduler_impl;
+#endif
+ scheduler_impl& scheduler_;
#if !defined(ASIO_WINDOWS) \
&& !defined(ASIO_WINDOWS_RUNTIME) \
&& !defined(__CYGWIN__)
- // The type used for registering for pipe reactor notifications.
+ // The type used for processing pipe readiness notifications.
class pipe_read_op;
+# if defined(ASIO_HAS_IO_URING_AS_DEFAULT)
+ // The io_uring service used for waiting for pipe readiness.
+ io_uring_service& io_uring_service_;
+
+ // The per I/O object data used for the pipe.
+ io_uring_service::per_io_object_data io_object_data_;
+# else // defined(ASIO_HAS_IO_URING_AS_DEFAULT)
// The reactor used for waiting for pipe readiness.
reactor& reactor_;
// The per-descriptor reactor data used for the pipe.
reactor::per_descriptor_data reactor_data_;
+# endif // defined(ASIO_HAS_IO_URING_AS_DEFAULT)
#endif // !defined(ASIO_WINDOWS)
// && !defined(ASIO_WINDOWS_RUNTIME)
// && !defined(__CYGWIN__)