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    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-71908] Simplify the Session read/write Interfaces to be sync/async agnostic</title>
                <link>https://jira.mongodb.org/browse/SERVER-71908</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;As it stands today, both ingress and egress code paths use the same Session abstraction to implement their respective sides of sending or receiving commands. To accommodate this, the Session API provides 6 functions to enable sync and async interactions:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;StatusWith&amp;lt;Message&amp;gt; sourceMessage()&lt;/li&gt;
	&lt;li&gt;Future&amp;lt;Message&amp;gt; asyncSourceMessage(const BatonHandle&amp;amp; handle)&lt;/li&gt;
	&lt;li&gt;Status waitForData()&lt;/li&gt;
	&lt;li&gt;Future&amp;lt;void&amp;gt; asyncWaitForData()&lt;/li&gt;
	&lt;li&gt;Status sinkMessage(Message message)&lt;/li&gt;
	&lt;li&gt;Future&amp;lt;void&amp;gt; asyncSinkMessage(Message message, const BatonHandle&amp;amp; handle)&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;&#160;&lt;/p&gt;

&lt;p&gt;Follow the pattern established by the refactor of the SessionWorkflow (formerly ServiceStateMachine) and use Future to provide an async-agnostic API to callers instead:&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;Future&amp;lt;Message&amp;gt; receiveMessage(PollingCoordinator&amp;amp; pc)&lt;/li&gt;
	&lt;li&gt;Future&amp;lt;void&amp;gt; sendMessage(PollingCoordinator&amp;amp; pc, const Message&amp;amp; msg)&lt;/li&gt;
	&lt;li&gt;Future&amp;lt;void&amp;gt; whenDataReady()&lt;/li&gt;
&lt;/ul&gt;
</description>
                <environment></environment>
        <key id="2204060">SERVER-71908</key>
            <summary>Simplify the Session read/write Interfaces to be sync/async agnostic</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="1" iconUrl="https://jira.mongodb.org/images/icons/statuses/open.png" description="">Open</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="backlog-server-servicearch">Backlog - Service Architecture</assignee>
                                    <reporter username="matt.diener@mongodb.com">Matt Diener</reporter>
                        <labels>
                    </labels>
                <created>Tue, 6 Dec 2022 20:23:06 +0000</created>
                <updated>Thu, 3 Aug 2023 17:20:45 +0000</updated>
                                                                                                <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="5381985" author="JIRAUSER1264675" created="Thu, 27 Apr 2023 17:17:07 +0000"  >&lt;p&gt;&lt;a href=&quot;https://github.com/10gen/mongo/pull/12404&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/10gen/mongo/pull/12404&lt;/a&gt; implements this. At the very least, it proves that the scope of this change is pretty small.&lt;/p&gt;</comment>
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