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[] (0) Rename navigator.releaseLocks() to navigator.getStorageUpdates…

…(); make the network layer's seting of cookies grab the lock.

git-svn-id: http://svn.whatwg.org/webapps@2914 340c8d12-0b0e-0410-8428-c7bf67bfef74
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Hixie committed Mar 26, 2009
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  1. +60 −42 index
  2. +67 −43 source
102 index
@@ -39,7 +39,7 @@
<div class=head>
<p><a class=logo href=http://www.whatwg.org/ rel=home><img alt=WHATWG src=/images/logo></a></p>
<h1>HTML 5</h1>
<h2 class="no-num no-toc" id=draft-recommendation-&mdash;-date:-01-jan-1901>Draft Recommendation &mdash; 25 March 2009</h2>
<h2 class="no-num no-toc" id=draft-recommendation-&mdash;-date:-01-jan-1901>Draft Recommendation &mdash; 26 March 2009</h2>
<p>You can take part in this work. <a href=http://www.whatwg.org/mailing-list>Join the working group's discussion list.</a></p>
<p><strong>Web designers!</strong> We have a <a href=http://blog.whatwg.org/faq/>FAQ</a>, a <a href=http://forums.whatwg.org/>forum</a>, and a <a href=http://www.whatwg.org/mailing-list#help>help mailing list</a> for you!</p>
<dl><dt>Multiple-page version:</dt>
@@ -708,11 +708,11 @@
<li><a href=#system-state-and-capabilities><span class=secno>5.7 </span>System state and capabilities</a>
<ol>
<li><a href=#client-identification><span class=secno>5.7.1 </span>Client identification</a></li>
<li><a href=#custom-handlers><span class=secno>5.7.2 </span>Custom protocol and content handlers</a></li>
<li><a href=#manually-releasing-the-storage-mutex><span class=secno>5.7.3 </span>Manually releasing the storage mutex</a>
<li><a href=#custom-handlers><span class=secno>5.7.2 </span>Custom protocol and content handlers</a>
<ol>
<li><a href=#security-and-privacy><span class=secno>5.7.3.1 </span>Security and privacy</a></li>
<li><a href=#sample-handler-impl><span class=secno>5.7.3.2 </span>Sample user interface</a></ol></ol></li>
<li><a href=#security-and-privacy><span class=secno>5.7.2.1 </span>Security and privacy</a></li>
<li><a href=#sample-handler-impl><span class=secno>5.7.2.2 </span>Sample user interface</a></ol></li>
<li><a href=#manually-releasing-the-storage-mutex><span class=secno>5.7.3 </span>Manually releasing the storage mutex</a></ol></li>
<li><a href=#offline><span class=secno>5.8 </span>Offline Web applications</a>
<ol>
<li><a href=#introduction-2><span class=secno>5.8.1 </span>Introduction</a></li>
@@ -4896,6 +4896,23 @@

</li>

<li>

<p>If there are cookies to be set, then the user agent must run
the following substeps:</p>

<ol><li><p>Wait until ownership of the <a href=#storage-mutex>storage mutex</a> can
be taken by this instance of the <a href=#fetch title=fetch>fetching</a> algorithm.</li>

<li><p>Take ownership of the <a href=#storage-mutex>storage mutex</a>.</li>

<li><p>Update the cookies. <a href=#refsCOOKIES>[COOKIES]</a></li>

<li><p>Release the <a href=#storage-mutex>storage mutex</a> so that it is once
again free.</li>

</ol></li>

<li><p>When the resource is available, <a href=#queue-a-task>queue a task</a>
that uses the resource as appropriate. If the resource can be
processed incrementally, as, for instance, with a progressively
<p>A user agent is required to have one <dfn id=storage-mutex>storage
mutex</dfn>. This mutex is used to control access to shared state
like cookies. At any one point, the <a href=#storage-mutex>storage mutex</a> is
either free, or owned by a particular <a href=#event-loop>event loop</a>.</p>
either free, or owned by a particular <a href=#event-loop>event loop</a> or
instance of the <a href=#fetch title=fetch>fetching</a> algorithm.</p>


<h5 id=processing-model-2><span class=secno>5.5.4.2 </span>Processing model</h5>
// content handler registration
void <a href=#dom-navigator-registerprotocolhandler title=dom-navigator-registerProtocolHandler>registerProtocolHandler</a>(in DOMString protocol, in DOMString url, in DOMString title);
void <a href=#dom-navigator-registercontenthandler title=dom-navigator-registerContentHandler>registerContentHandler</a>(in DOMString mimeType, in DOMString url, in DOMString title);
void <a href=#dom-navigator-releaselock title=dom-navigator-releaseLock>releaseLock</a>();
void <a href=#dom-navigator-getstorageupdates title=dom-navigator-getStorageUpdates>getStorageUpdates</a>();
<!-- XXX cookieEnabled geolocator javaEnabled mozIsLocallyAvailable preference
readonly attribute <span>MimeTypeArray</span> <span title="dom-navigator-mimeTypes">mimeTypes</span>;
readonly attribute <span>PluginArray</span> <span title="dom-navigator-plugins">plugins</span>;
</div>


<h4 id=manually-releasing-the-storage-mutex><span class=secno>5.7.3 </span>Manually releasing the storage mutex</h4>

<dl class=domintro><dt><var title="">window</var> . <code title=dom-navigator><a href=#dom-navigator>navigator</a></code> . <code title=dom-navigator-releaseLock><a href=#dom-navigator-releaselock>releaseLock</a></code>()</dt>

<dd>

<p>If a script uses the <code title=dom-document-cookie><a href=#dom-document-cookie>document.cookie</a></code> API, or the
<code title=dom-localStorage>localStorage</code> API, the
browser will block other scripts from accessing cookies or storage
until the first script finishes.</p>

<p>Calling the <code title=dom-navigator-releaseLock><a href=#dom-navigator-releaselock>navigator.releaseLock()</a></code>
method tells the user agent to unblock any other scripts that may
be blocked, even though the script hasn't returned.</p>

<p>Values of cookies and items in the <code>Storage</code> objects
of <code title=dom-localStorage>localStorage</code> attributes
can change after calling this method.</p>

</dd>

</dl><div class=impl>

<p>The <dfn id=dom-navigator-releaselock title=dom-navigator-releaseLock><code>releaseLock()</code></dfn>
method, when invoked, must, if the <a href=#storage-mutex>storage mutex</a> is
owned by the <a href=#event-loop>event loop</a> of the <a href=#concept-task title=concept-task>task</a> that resulted in the method being
called, release the <a href=#storage-mutex>storage mutex</a> so that it is once
again free. Otherwise, it must do nothing.</p>

</div>



<div class=impl>

<h5 id=security-and-privacy><span class=secno>5.7.3.1 </span>Security and privacy</h5>
<h5 id=security-and-privacy><span class=secno>5.7.2.1 </span>Security and privacy</h5>

<p>These mechanisms can introduce a number of concerns, in
particular privacy concerns.</p>

<div class=impl>

<h5 id=sample-handler-impl><span class=secno>5.7.3.2 </span>Sample user interface</h5>
<h5 id=sample-handler-impl><span class=secno>5.7.2.2 </span>Sample user interface</h5>

<p><em>This section is non-normative.</em></p>




<h4 id=manually-releasing-the-storage-mutex><span class=secno>5.7.3 </span>Manually releasing the storage mutex</h4>

<dl class=domintro><dt><var title="">window</var> . <code title=dom-navigator><a href=#dom-navigator>navigator</a></code> . <code title=dom-navigator-getStorageUpdates><a href=#dom-navigator-getstorageupdates>getStorageUpdates</a></code>()</dt>

<dd>

<p>If a script uses the <code title=dom-document-cookie><a href=#dom-document-cookie>document.cookie</a></code> API, or the
<code title=dom-localStorage>localStorage</code> API, the
browser will block other scripts from accessing cookies or storage
until the first script finishes.</p>

<p>Calling the <code title=dom-navigator-getStorageUpdates><a href=#dom-navigator-getstorageupdates>navigator.getStorageUpdates()</a></code>
method tells the user agent to unblock any other scripts that may
be blocked, even though the script hasn't returned.</p>

<p>Values of cookies and items in the <code>Storage</code> objects
of <code title=dom-localStorage>localStorage</code> attributes
can change after calling this method, whence its name.</p>

</dd>

</dl><div class=impl>

<p>The <dfn id=dom-navigator-getstorageupdates title=dom-navigator-getStorageUpdates><code>getStorageUpdates()</code></dfn>
method, when invoked, must, if the <a href=#storage-mutex>storage mutex</a> is
owned by the <a href=#event-loop>event loop</a> of the <a href=#concept-task title=concept-task>task</a> that resulted in the method being
called, release the <a href=#storage-mutex>storage mutex</a> so that it is once
again free. Otherwise, it must do nothing.</p>

</div>



<h3 id=offline><span class=secno>5.8 </span>Offline Web applications</h3>

<h4 id=introduction-2><span class=secno>5.8.1 </span>Introduction</h4>
110 source
@@ -4606,6 +4606,29 @@

</li>

<li>

<p>If there are cookies to be set, then the user agent must run
the following substeps:</p>

<ol>

<li><p>Wait until ownership of the <span>storage mutex</span> can
be taken by this instance of the <span
title="fetch">fetching</span> algorithm.</p></li>

<li><p>Take ownership of the <span>storage mutex</span>.</p></li>

<li><p>Update the cookies. <a
href="#refsCOOKIES">[COOKIES]</a></p></li>

<li><p>Release the <span>storage mutex</span> so that it is once
again free.</p></li>

</ol>

</li>

<li><p>When the resource is available, <span>queue a task</span>
that uses the resource as appropriate. If the resource can be
processed incrementally, as, for instance, with a progressively
<p>A user agent is required to have one <dfn>storage
mutex</dfn>. This mutex is used to control access to shared state
like cookies. At any one point, the <span>storage mutex</span> is
either free, or owned by a particular <span>event loop</span>.</p>
either free, or owned by a particular <span>event loop</span> or
instance of the <span title="fetch">fetching</span> algorithm.</p>


<h5>Processing model</h5>
// content handler registration
void <span title="dom-navigator-registerProtocolHandler">registerProtocolHandler</span>(in DOMString protocol, in DOMString url, in DOMString title);
void <span title="dom-navigator-registerContentHandler">registerContentHandler</span>(in DOMString mimeType, in DOMString url, in DOMString title);
void <span title="dom-navigator-releaseLock">releaseLock</span>();
void <span title="dom-navigator-getStorageUpdates">getStorageUpdates</span>();
<!-- XXX cookieEnabled geolocator javaEnabled mozIsLocallyAvailable preference
readonly attribute <span>MimeTypeArray</span> <span title="dom-navigator-mimeTypes">mimeTypes</span>;
readonly attribute <span>PluginArray</span> <span title="dom-navigator-plugins">plugins</span>;
</div>


<h4>Manually releasing the storage mutex</h4>

<dl class="domintro">

<dt><var title="">window</var> . <code title="dom-navigator">navigator</code> . <code title="dom-navigator-releaseLock">releaseLock</code>()</dt>

<dd>

<p>If a script uses the <code
title="dom-document-cookie">document.cookie</code> API, or the
<code title="dom-localStorage">localStorage</code> API, the
browser will block other scripts from accessing cookies or storage
until the first script finishes.</p>

<p>Calling the <code
title="dom-navigator-releaseLock">navigator.releaseLock()</code>
method tells the user agent to unblock any other scripts that may
be blocked, even though the script hasn't returned.</p>

<p>Values of cookies and items in the <code>Storage</code> objects
of <code title="dom-localStorage">localStorage</code> attributes
can change after calling this method.</p>

</dd>

</dl>

<div class="impl">

<p>The <dfn
title="dom-navigator-releaseLock"><code>releaseLock()</code></dfn>
method, when invoked, must, if the <span>storage mutex</span> is
owned by the <span>event loop</span> of the <span
title="concept-task">task</span> that resulted in the method being
called, release the <span>storage mutex</span> so that it is once
again free. Otherwise, it must do nothing.</p>

</div>



<div class="impl">

<h5>Security and privacy</h5>



<h4>Manually releasing the storage mutex</h4>

<dl class="domintro">

<dt><var title="">window</var> . <code title="dom-navigator">navigator</code> . <code title="dom-navigator-getStorageUpdates">getStorageUpdates</code>()</dt>

<dd>

<p>If a script uses the <code
title="dom-document-cookie">document.cookie</code> API, or the
<code title="dom-localStorage">localStorage</code> API, the
browser will block other scripts from accessing cookies or storage
until the first script finishes.</p>

<p>Calling the <code
title="dom-navigator-getStorageUpdates">navigator.getStorageUpdates()</code>
method tells the user agent to unblock any other scripts that may
be blocked, even though the script hasn't returned.</p>

<p>Values of cookies and items in the <code>Storage</code> objects
of <code title="dom-localStorage">localStorage</code> attributes
can change after calling this method, whence its name.</p>

</dd>

</dl>

<div class="impl">

<p>The <dfn
title="dom-navigator-getStorageUpdates"><code>getStorageUpdates()</code></dfn>
method, when invoked, must, if the <span>storage mutex</span> is
owned by the <span>event loop</span> of the <span
title="concept-task">task</span> that resulted in the method being
called, release the <span>storage mutex</span> so that it is once
again free. Otherwise, it must do nothing.</p>

</div>



<h3 id="offline">Offline Web applications</h3>

<h4>Introduction</h4>

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