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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <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>[CDRIVER-2502] Rewrite mongoc_cursor_t</title>
                <link>https://jira.mongodb.org/browse/CDRIVER-2502</link>
                <project id="10030" key="CDRIVER">C Driver</project>
                    <description>&lt;p&gt;The C Driver has a base cursor implementation, mongoc_cursor_t, and four &quot;subclasses&quot;. As the wire protocol has evolved, the cursor logic has become a mess. Recent updates to the cursor code were unreasonably costly, and planned future work on cursors is extremely risky. Rewrite the cursor classes to clean up debt and prepare us for future work.&lt;/p&gt;</description>
                <environment></environment>
        <key id="496948">CDRIVER-2502</key>
            <summary>Rewrite mongoc_cursor_t</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="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="13201">Fixed</resolution>
                                        <assignee username="kevin.albertson@mongodb.com">Kevin Albertson</assignee>
                                    <reporter username="jesse@mongodb.com">A. Jesse Jiryu Davis</reporter>
                        <labels>
                    </labels>
                <created>Tue, 13 Feb 2018 02:27:17 +0000</created>
                <updated>Sat, 28 Oct 2023 11:30:07 +0000</updated>
                            <resolved>Thu, 19 Apr 2018 19:05:58 +0000</resolved>
                                                    <fixVersion>1.10.0</fixVersion>
                                    <component>libmongoc</component>
                                        <votes>0</votes>
                                    <watches>2</watches>
                                                                                                                <comments>
                            <comment id="1868189" author="xgen-internal-githook" created="Wed, 18 Apr 2018 21:00:46 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;kevin.albertson@10gen.com&apos;, &apos;name&apos;: &apos;Kevin Albertson&apos;, &apos;username&apos;: &apos;kevinAlbs&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/CDRIVER-2502&quot; title=&quot;Rewrite mongoc_cursor_t&quot; class=&quot;issue-link&quot; data-issue-key=&quot;CDRIVER-2502&quot;&gt;&lt;del&gt;CDRIVER-2502&lt;/del&gt;&lt;/a&gt; rewrite mongoc_cursor_t&lt;/p&gt;

&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;organize different cursor impls:&lt;br/&gt;
  + find cursor, which changes into a find-opquery or find-cmd cursor&lt;br/&gt;
  + command cursor for agg + listCollections + listIndexes&lt;br/&gt;
  + deprecated command cursor for deprecated command methods&lt;/li&gt;
	&lt;li&gt;make mongoc-cursor-legacy.c for cursor functions relating to&lt;br/&gt;
  OP_QUERY find, OP_REPLY streaming and OP_GETMORE&lt;/li&gt;
	&lt;li&gt;remove unused fields from cursor_t, remove implementation specific&lt;br/&gt;
  fields, remove is_find&lt;/li&gt;
	&lt;li&gt;cursor state is now tracked in one enum value as a state machine&lt;/li&gt;
	&lt;li&gt;translating flags into options is now a separate function that&lt;br/&gt;
  the caller must call before creating a new cursor&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-c-driver/commit/28c3a5ad0f05b1a63c2023c3d59735aa015e945f&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-c-driver/commit/28c3a5ad0f05b1a63c2023c3d59735aa015e945f&lt;/a&gt;&lt;/li&gt;
&lt;/ul&gt;
</comment>
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                            <issuelinktype id="10011">
                    <name>Depends</name>
                                            <outwardlinks description="depends on">
                                        <issuelink>
            <issuekey id="498508">CDRIVER-2510</issuekey>
        </issuelink>
            <issuelink>
            <issuekey id="517588">CDRIVER-2572</issuekey>
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