[3.1] patch pinned build's boost 1.70 to fix websocket defect

scripts/0001-beast-fix-moved-from-executor.patch

@@ -0,0 +1,89 @@
+diff -Naur a/boost/beast/websocket/impl/ping.hpp b/boost/beast/websocket/impl/ping.hpp
+--- a/boost/beast/websocket/impl/ping.hpp	2019-05-06 22:01:43.435117251 -0400
++++ b/boost/beast/websocket/impl/ping.hpp	2019-05-06 22:02:37.949433556 -0400
+@@ -176,7 +176,8 @@
+                 impl.op_idle_ping.emplace(std::move(*this));
+                 impl.wr_block.lock(this);
+                 BOOST_ASIO_CORO_YIELD
+-                net::post(this->get(), std::move(*this));
++                net::post(
++                    this->get_executor(), std::move(*this));
+                 BOOST_ASSERT(impl.wr_block.is_locked(this));
+             }
+             if(impl.check_stop_now(ec))
+diff -Naur a/libs/beast/CHANGELOG.md b/libs/beast/CHANGELOG.md
+--- a/libs/beast/CHANGELOG.md	2019-05-06 22:02:54.332528615 -0400
++++ b/libs/beast/CHANGELOG.md	2019-05-06 22:03:05.896595711 -0400
+@@ -1,3 +1,10 @@
++Version 248-hf1:
++
++* Add idle ping suspend test
++* Fix moved-from executor in idle ping timeout
++
++--------------------------------------------------------------------------------
++
+ Version 248:
+
+ * Don't use a moved-from handler
+diff -Naur a/libs/beast/test/beast/websocket/ping.cpp b/libs/beast/test/beast/websocket/ping.cpp
+--- a/libs/beast/test/beast/websocket/ping.cpp	2019-05-06 22:02:54.342528673 -0400
++++ b/libs/beast/test/beast/websocket/ping.cpp	2019-05-06 22:03:05.908595781 -0400
+@@ -10,8 +10,11 @@
+ // Test that header file is self-contained.
+ #include <boost/beast/websocket/stream.hpp>
+
++#include <boost/beast/_experimental/test/tcp.hpp>
++
+ #include "test.hpp"
+
++#include <boost/asio/ip/tcp.hpp>
+ #include <boost/asio/io_context.hpp>
+ #include <boost/asio/strand.hpp>
+
+@@ -366,6 +369,46 @@
+             BEAST_EXPECT(count == 3);
+         });
+
++        // suspend idle ping
++        {
++            using socket_type =
++                net::basic_stream_socket<
++                    net::ip::tcp,
++                    net::executor>;
++            net::io_context ioc;
++            stream<socket_type> ws1(ioc);
++            stream<socket_type> ws2(ioc);
++            ws1.set_option(stream_base::timeout{
++                stream_base::none(),
++                std::chrono::seconds(0),
++                true});
++            test::connect(
++                ws1.next_layer(),
++                ws2.next_layer());
++            ws1.async_handshake("localhost", "/",
++                [](error_code){});
++            ws2.async_accept([](error_code){});
++            ioc.run();
++            ioc.restart();
++            flat_buffer b1;
++            auto mb = b1.prepare(65536);
++            std::memset(mb.data(), 0, mb.size());
++            b1.commit(65536);
++            ws1.async_write(b1.data(),
++                [&](error_code, std::size_t){});
++            BEAST_EXPECT(
++                ws1.impl_->wr_block.is_locked());
++            ws1.async_read_some(net::mutable_buffer{},
++                [&](error_code, std::size_t){});
++            ioc.run();
++            ioc.restart();
++            flat_buffer b2;
++            ws2.async_read(b2,
++                [&](error_code, std::size_t){});
++            ioc.run();
++        }
++        //);
++
+         {
+             echo_server es{log, kind::async};
+             net::io_context ioc;

scripts/pinned_build.sh

@@ -106,8 +106,9 @@ install_boost() {
    if [ ! -d "${BOOST_DIR}" ]; then
       echo "Installing Boost ${BOOST_VER} @ ${BOOST_DIR}"
       try wget https://boostorg.jfrog.io/artifactory/main/release/${BOOST_VER}/source/boost_${BOOST_VER//\./_}.tar.gz
-      try tar -xvzf boost_${BOOST_VER//\./_}.tar.gz -C ${DEP_DIR}
+      try tar --transform="s:^boost_${BOOST_VER//\./_}:boost_${BOOST_VER//\./_}patched:" -xvzf boost_${BOOST_VER//\./_}.tar.gz -C ${DEP_DIR}
       pushdir ${BOOST_DIR}
+      patch -p1 < "${SCRIPT_DIR}/0001-beast-fix-moved-from-executor.patch"
       try ./bootstrap.sh -with-toolset=clang --prefix=${BOOST_DIR}/bin
       ./b2 toolset=clang cxxflags='-stdlib=libc++ -D__STRICT_ANSI__ -nostdinc++ -I${CLANG_DIR}/include/c++/v1 -D_FORTIFY_SOURCE=2 -fstack-protector-strong -fPIE' linkflags='-stdlib=libc++ -pie' link=static threading=multi --with-iostreams --with-date_time --with-filesystem --with-system --with-program_options --with-chrono --with-test -q -j${JOBS} install
       popdir ${DEP_DIR}
@@ -120,7 +121,7 @@ pushdir ${DEP_DIR}
 
 install_clang ${DEP_DIR}/clang-${CLANG_VER}
 install_llvm ${DEP_DIR}/llvm-${LLVM_VER}
-install_boost ${DEP_DIR}/boost_${BOOST_VER//\./_}
+install_boost ${DEP_DIR}/boost_${BOOST_VER//\./_}patched
 
 # go back to the directory where the script starts
 popdir ${START_DIR}