From 04ced3b95438f3ea33476c0d35fc59c3a5ab5bcd Mon Sep 17 00:00:00 2001
From: Vinnie Falco <vinnie.falco@gmail.com>
Date: Mon, 26 Feb 2018 20:25:27 -0800
Subject: [PATCH] Examples clear the HTTP message before reading

fix #1043
---
 CHANGELOG.md                                                | 6 ++++++
 doc/qbk/09_releases.qbk                                     | 2 ++
 example/advanced/server-flex/advanced_server_flex.cpp       | 4 ++++
 example/advanced/server/advanced_server.cpp                 | 4 ++++
 example/http/server/async-ssl/http_server_async_ssl.cpp     | 4 ++++
 example/http/server/async/http_server_async.cpp             | 4 ++++
 .../http/server/stackless-ssl/http_server_stackless_ssl.cpp | 4 ++++
 example/http/server/stackless/http_server_stackless.cpp     | 4 ++++
 8 files changed, 32 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 66a05f37..6d72aa3a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,9 @@
+Version 160:
+
+* Examples clear the HTTP message before reading
+
+--------------------------------------------------------------------------------
+
 Version 159:
 
 * Fix typo in release notes
diff --git a/doc/qbk/09_releases.qbk b/doc/qbk/09_releases.qbk
index 54813141..fa23865f 100644
--- a/doc/qbk/09_releases.qbk
+++ b/doc/qbk/09_releases.qbk
@@ -114,6 +114,8 @@ to update to the latest Boost release.
 
 * Safe treatment of zero-length string arguments in basic_fields
 
+* ([issue 1043]) Examples clear the HTTP message before reading
+
 [*API Changes]
 
 * Remove unintended public members of
diff --git a/example/advanced/server-flex/advanced_server_flex.cpp b/example/advanced/server-flex/advanced_server_flex.cpp
index 4bb04685..b1f4ef71 100644
--- a/example/advanced/server-flex/advanced_server_flex.cpp
+++ b/example/advanced/server-flex/advanced_server_flex.cpp
@@ -787,6 +787,10 @@ public:
         // Set the timer
         timer_.expires_after(std::chrono::seconds(15));
 
+        // Make the request empty before reading,
+        // otherwise the operation behavior is undefined.
+        req_ = {};
+
         // Read a request
         http::async_read(
             derived().stream(),
diff --git a/example/advanced/server/advanced_server.cpp b/example/advanced/server/advanced_server.cpp
index b3d91b3d..d814cb48 100644
--- a/example/advanced/server/advanced_server.cpp
+++ b/example/advanced/server/advanced_server.cpp
@@ -591,6 +591,10 @@ public:
         // Set the timer
         timer_.expires_after(std::chrono::seconds(15));
 
+        // Make the request empty before reading,
+        // otherwise the operation behavior is undefined.
+        req_ = {};
+
         // Read a request
         http::async_read(socket_, buffer_, req_,
             boost::asio::bind_executor(
diff --git a/example/http/server/async-ssl/http_server_async_ssl.cpp b/example/http/server/async-ssl/http_server_async_ssl.cpp
index 4df2cce2..9c767152 100644
--- a/example/http/server/async-ssl/http_server_async_ssl.cpp
+++ b/example/http/server/async-ssl/http_server_async_ssl.cpp
@@ -311,6 +311,10 @@ public:
     void
     do_read()
     {
+        // Make the request empty before reading,
+        // otherwise the operation behavior is undefined.
+        req_ = {};
+
         // Read a request
         http::async_read(stream_, buffer_, req_,
             boost::asio::bind_executor(
diff --git a/example/http/server/async/http_server_async.cpp b/example/http/server/async/http_server_async.cpp
index d596f046..33177599 100644
--- a/example/http/server/async/http_server_async.cpp
+++ b/example/http/server/async/http_server_async.cpp
@@ -287,6 +287,10 @@ public:
     void
     do_read()
     {
+        // Make the request empty before reading,
+        // otherwise the operation behavior is undefined.
+        req_ = {};
+
         // Read a request
         http::async_read(socket_, buffer_, req_,
             boost::asio::bind_executor(
diff --git a/example/http/server/stackless-ssl/http_server_stackless_ssl.cpp b/example/http/server/stackless-ssl/http_server_stackless_ssl.cpp
index 0243ad53..a0fbac4e 100644
--- a/example/http/server/stackless-ssl/http_server_stackless_ssl.cpp
+++ b/example/http/server/stackless-ssl/http_server_stackless_ssl.cpp
@@ -320,6 +320,10 @@ public:
 
             for(;;)
             {
+                // Make the request empty before reading,
+                // otherwise the operation behavior is undefined.
+                req_ = {};
+
                 // Read a request
                 yield http::async_read(stream_, buffer_, req_,
                     boost::asio::bind_executor(
diff --git a/example/http/server/stackless/http_server_stackless.cpp b/example/http/server/stackless/http_server_stackless.cpp
index c0bf0f7c..e92d0ad2 100644
--- a/example/http/server/stackless/http_server_stackless.cpp
+++ b/example/http/server/stackless/http_server_stackless.cpp
@@ -300,6 +300,10 @@ public:
         {
             for(;;)
             {
+                // Make the request empty before reading,
+                // otherwise the operation behavior is undefined.
+                req_ = {};
+
                 // Read a request
                 yield http::async_read(socket_, buffer_, req_,
                     boost::asio::bind_executor(