boost: backport fix to make async_pipes work with asio

async_pipe is missing the executor_type type, which is expected by
asio in /usr/include/boost/asio/impl/read.hpp. Without this, it's
not possible to even compile code that uses constructs such as:

boost::asio::io_service foo;
boost::process::async_pipe foopipe{ boost::process::async_pipe(foo) };

This is only relevant for Dunfell because master has already moved to
boost-1.73.0 in which this bug has been fixed. The bug is also not
present in Zeus, which uses boost-1.71.0.

(From OE-Core rev: f3f6cc45b0b95cce337947df8dfaa9402251541c)

Signed-off-by: Viktor Rosendahl <Viktor.Rosendahl@bmw.de>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

2 files changed, 55 insertions, 0 deletions

diff --git a/meta/recipes-support/boost/boost/0001-added-typedef-executor_type.patch b/meta/recipes-support/boost/boost/0001-added-typedef-executor_type.patch
new file mode 100644
index 0000000000..7b8178fd76
--- /dev/null
+++ b/meta/recipes-support/boost/boost/0001-added-typedef-executor_type.patch
@@ -0,0 +1,54 @@
+From 6a4d2ff72114ef47c7afaf92e1042aca3dfa41b0 Mon Sep 17 00:00:00 2001
+From: Klemens David Morgenstern <klemens.morgenstern@gmx.net>
+Date: Fri, 22 Nov 2019 14:03:22 +0800
+Subject: [PATCH] added typedef executor_type;
+
+Upstream-Status: Backport [https://github.com/boostorg/process/commit/6a4d2ff72114ef47c7afaf92e1042aca3dfa41b0]
+
+Signed-off-by: Viktor Rosendahl <Viktor.Rosendahl@bmw.de>
+---
+ include/boost/process/async_pipe.hpp                | 2 ++
+ include/boost/process/detail/posix/async_pipe.hpp   | 1 +
+ include/boost/process/detail/windows/async_pipe.hpp | 1 +
+ 3 files changed, 4 insertions(+)
+
+diff --git a/include/boost/process/async_pipe.hpp b/include/boost/process/async_pipe.hpp
+index 101fe1d..a562432 100644
+--- a/boost/process/async_pipe.hpp
++++ b/boost/process/async_pipe.hpp
+@@ -47,6 +47,8 @@ public:
+      */
+     typedef platform_specific handle_type;
+ 
++    typedef typename handle_type::executor_type executor_type;
++
+     /** Construct a new async_pipe, does automatically open the pipe.
+      * Initializes source and sink with the same io_context.
+      * @note Windows creates a named pipe here, where the name is automatically generated.
+diff --git a/include/boost/process/detail/posix/async_pipe.hpp b/include/boost/process/detail/posix/async_pipe.hpp
+index 725a078..a82c057 100644
+--- a/boost/process/detail/posix/async_pipe.hpp
++++ b/boost/process/detail/posix/async_pipe.hpp
+@@ -23,6 +23,7 @@ class async_pipe
+ public:
+     typedef int native_handle_type;
+     typedef ::boost::asio::posix::stream_descriptor handle_type;
++    typedef typename handle_type::executor_type executor_type;
+ 
+     inline async_pipe(boost::asio::io_context & ios) : async_pipe(ios, ios) {}
+ 
+diff --git a/include/boost/process/detail/windows/async_pipe.hpp b/include/boost/process/detail/windows/async_pipe.hpp
+index 06d5f2d..0b447f9 100644
+--- a/boost/process/detail/windows/async_pipe.hpp
++++ b/boost/process/detail/windows/async_pipe.hpp
+@@ -48,6 +48,7 @@ class async_pipe
+ public:
+     typedef ::boost::winapi::HANDLE_ native_handle_type;
+     typedef ::boost::asio::windows::stream_handle   handle_type;
++    typedef typename handle_type::executor_type executor_type;
+ 
+     async_pipe(boost::asio::io_context & ios) : async_pipe(ios, ios, make_pipe_name(), true) {}
+     async_pipe(boost::asio::io_context & ios_source, boost::asio::io_context & ios_sink)
+-- 
+2.17.1
+
diff --git a/meta/recipes-support/boost/boost_1.72.0.bb b/meta/recipes-support/boost/boost_1.72.0.bb
index 0b7badbc76..51c84bc935 100644
--- a/meta/recipes-support/boost/boost_1.72.0.bb
+++ b/meta/recipes-support/boost/boost_1.72.0.bb
@@ -8,4 +8,5 @@ SRC_URI += "file://arm-intrinsics.patch \
            file://0001-Don-t-set-up-arch-instruction-set-flags-we-do-that-o.patch \
            file://0001-dont-setup-compiler-flags-m32-m64.patch \
            file://0001-revert-cease-dependence-on-range.patch \
+           file://0001-added-typedef-executor_type.patch \
            "