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* [gcc r11-8907] libstdc++: Clarify argument to net::io_context::async_wait
@ 2021-08-24 16:00 Jonathan Wakely
0 siblings, 0 replies; only message in thread
From: Jonathan Wakely @ 2021-08-24 16:00 UTC (permalink / raw)
To: gcc-cvs, libstdc++-cvs
https://gcc.gnu.org/g:8140362761e9c225023f42c28647babd548dc653
commit r11-8907-g8140362761e9c225023f42c28647babd548dc653
Author: Jonathan Wakely <jwakely@redhat.com>
Date: Fri Apr 23 13:31:33 2021 +0100
libstdc++: Clarify argument to net::io_context::async_wait
Add a comment documenting the __w parameter of the private
ios_context::async_wait function. Add casts to callers, making the
conversions explicit.
libstdc++-v3/ChangeLog:
* include/experimental/io_context (io_context::async_wait): Add
comment.
* include/experimental/socket (basic_socket::async_connect):
Cast wait_type constant to int.
(basic_datagram_socket::async_receive): Likewise.
(basic_datagram_socket::async_receive_from): Likewise.
(basic_datagram_socket::async_send): Likewise.
(basic_datagram_socket::async_send_to): Likewise.
(basic_stream_socket::async_receive): Likewise.
(basic_stream_socket::async_send): Likewise. Use io_context
parameter directly, instead of via an executor.
(basic_socket_acceptor::async_accept): Likewise.
(cherry picked from commit 3517dfe05c05a48885149334143230fcf0ebe6be)
Diff:
---
libstdc++-v3/include/experimental/io_context | 3 +++
libstdc++-v3/include/experimental/socket | 22 +++++++++++-----------
2 files changed, 14 insertions(+), 11 deletions(-)
diff --git a/libstdc++-v3/include/experimental/io_context b/libstdc++-v3/include/experimental/io_context
index c82f30cd119..82d7b4f545e 100644
--- a/libstdc++-v3/include/experimental/io_context
+++ b/libstdc++-v3/include/experimental/io_context
@@ -475,6 +475,9 @@ inline namespace v1
return 0;
}
+ // The caller must know what the wait-type __w will be interpreted.
+ // In the current implementation the reactor is based on <poll.h>
+ // so the parameter must be one of POLLIN, POLLOUT or POLLERR.
template<typename _Op>
void
async_wait(int __fd, int __w, _Op&& __op)
diff --git a/libstdc++-v3/include/experimental/socket b/libstdc++-v3/include/experimental/socket
index ec4ed9d95e2..09c3b729607 100644
--- a/libstdc++-v3/include/experimental/socket
+++ b/libstdc++-v3/include/experimental/socket
@@ -954,7 +954,7 @@ inline namespace v1
}
get_executor().context().async_wait( native_handle(),
- socket_base::wait_read,
+ (int) socket_base::wait_read,
[__h = std::move(__init.completion_handler),
__ep = std::move(__endpoint),
__fd = native_handle()]
@@ -1165,7 +1165,7 @@ inline namespace v1
__init{__token};
this->get_executor().context().async_wait(this->native_handle(),
- socket_base::wait_read,
+ (int) socket_base::wait_read,
[__h = std::move(__init.completion_handler),
&__buffers, __flags = static_cast<int>(__flags),
__fd = this->native_handle()]
@@ -1271,7 +1271,7 @@ inline namespace v1
__init{__token};
this->get_executor().context().async_wait( this->native_handle(),
- socket_base::wait_read,
+ (int) socket_base::wait_read,
[__h = std::move(__init.completion_handler),
&__buffers, __flags = static_cast<int>(__flags),
__sender = std::move(__sender),
@@ -1366,7 +1366,7 @@ inline namespace v1
__init{__token};
this->get_executor().context().async_wait( this->native_handle(),
- socket_base::wait_write,
+ (int) socket_base::wait_write,
[__h = std::move(__init.completion_handler),
&__buffers, __flags = static_cast<int>(__flags),
__fd = this->native_handle()]
@@ -1469,7 +1469,7 @@ inline namespace v1
__init{__token};
this->get_executor().context().async_wait( this->native_handle(),
- socket_base::wait_write,
+ (int) socket_base::wait_write,
[__h = std::move(__init.completion_handler),
&__buffers, __flags = static_cast<int>(__flags),
__recipient = std::move(__recipient),
@@ -1634,7 +1634,7 @@ inline namespace v1
}
this->get_executor().context().async_wait(this->native_handle(),
- socket_base::wait_read,
+ (int) socket_base::wait_read,
[__h = std::move(__init.completion_handler),
&__buffers, __flags = static_cast<int>(__flags),
__fd = this->native_handle()]
@@ -1741,7 +1741,7 @@ inline namespace v1
}
this->get_executor().context().async_wait(this->native_handle(),
- socket_base::wait_write,
+ (int) socket_base::wait_write,
[__h = std::move(__init.completion_handler),
&__buffers, __flags = static_cast<int>(__flags),
__fd = this->native_handle()]
@@ -2098,8 +2098,8 @@ inline namespace v1
async_completion<_CompletionToken, void(error_code, socket_type)>
__init{__token};
- __ctx.get_executor().context().async_wait(native_handle(),
- socket_base::wait_read,
+ __ctx.async_wait(native_handle(),
+ (int) socket_base::wait_read,
[__h = std::move(__init.completion_handler),
__connabort = enable_connection_aborted(),
__fd = native_handle(),
@@ -2189,8 +2189,8 @@ inline namespace v1
async_completion<_CompletionToken, void(error_code, socket_type)>
__init{__token};
- __ctx.get_executor().context().async_wait(native_handle(),
- socket_base::wait_read,
+ __ctx.async_wait(native_handle(),
+ (int) socket_base::wait_read,
[__h = std::move(__init.completion_handler),
__ep = std::move(__endpoint),
__connabort = enable_connection_aborted(),
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