--- a/Overview.htm Thu Jan 30 11:24:35 2014 +0900
+++ b/Overview.htm Thu Jan 30 11:32:27 2014 +0900
@@ -1001,8 +1001,7 @@
A <dfn>data source</dfn> can be anything that:
<ul>
<li>
- Produces data.
- Newly produced data will be delivered to the associated <a>ReadableStream</a>.
+ Produces data and delivers it to the associated <a>ReadableStream</a>.
</li>
<li>
Notifies the associated <a>ReadableStream</a> of the <dfn>read EOF</dfn> signal.
@@ -1061,11 +1060,6 @@
</p>
<p>
- An associated flag <dfn>readPending</dfn> which prevents multiple read operations from being run.
- This flag is set to false on construction.
- </p>
-
- <p>
An associated integer variable <dfn>readUpToPullAmount</dfn> which temporarily overrides <a href="#widl-ReadableStream-pullAmount">pullAmount</a> if necessary for a <code>readUpTo()</code> method call.
This variable is initialized to 0 on construction.
</p>
@@ -1139,7 +1133,7 @@
<li>Let <var>readableAmount</var> be sum of the total <a>cost</a> in <a>readDataBuffer</a> and the total number of bytes in <a>splicedBinaryBuffer</a></li>
<li>Let <var>amountToNewlyRequest</var> be max(max(<a href="#widl-ReadableStream-pullAmount">pullAmount</a>, <a>readUpToPullAmount</a>, <a>pipePullAmount</a>) - (<a>amountRequested</a> + <var>readableAmount</var> + <a>amountBeingReturned</a>), 0)</li>
<li>Set <a>amountRequested</a> to <a>amountRequested</a> + <var>amountToNewlyRequest</var></li>
- <li>Send a request to the <a>dataSource</a> to produce data with <var>amountToNewlyRequest</var> <a>cost</a> to the ReadableStream</li>
+ <li>Send a request to the <a>dataSource</a> to produce <var>amountToNewlyRequest</var> more data</li>
</ol>
</p>
@@ -1639,15 +1633,17 @@
<p>
Returns a unique Blob URL each time it is called on a <a>ReadableStream</a>.
- This method must act as follows:
+ </p>
+ <p>
+ This method must run the steps below:
<dl class="switch">
<dt>If <var>stream</var> is non-null and in scope of the global object's URL property from which this static method is called</dt>
<dd>
Run the steps below:
<ol>
- <li>If <a>readPending</a> of <var>stream</var> is set, return null</li>
- <li>Set <a>readPending</a> of <var>stream</var></li>
+ <li>If <a>pendingRead</a> of <var>stream</var> is not <code>null</code>, return <code>null</code></li>
+ <li>Set <a>pendingRead</a> of <var>stream</var> to a newly-created <a>PendingReadDescriptor</a></li>
<li>Return a unique <code>Blob URI</code> that can be used to dereference <var>stream</var></li>
<li>Add an entry to the Blob URL Store for this Blob URL</li>
</ol>
@@ -1673,22 +1669,24 @@
<p>
Returns a unique Blob URL each time it is called on a <a>ReadableStream</a>.
Blob URLs created with this method are said to be auto-revoking since user-agents are responsible for the revocation of Blob URLs created with this method, subject to the lifetime stipulation for Blob URLs.
- This method must act as follows:
+ </p>
+ <p>
+ This method must run the steps below:
<dl class="switch">
<dt>If <var>stream</var> is non-null and in scope of the global object's URL property from which this static method is called</dt>
<dd>
Run the steps below:
<ol>
- <li>If <a>readPending</a> of <var>stream</var> is set, return null</li>
- <li>Set <a>readPending</a> of <var>stream</var></li>
+ <li>If <a>pendingRead</a> of <var>stream</var> is not <code>null</code>, return <code>null</code></li>
+ <li>Set <a>pendingRead</a> of <var>stream</var> to a newly-created <a>PendingReadDescriptor</a></li>
<li>Return a unique <code>Blob URI</code> that can be used to dereference <var>stream</var></li>
<li>Add an entry to the Blob URL Store for this Blob URL</li>
<li>Add an entry to the Revocation List for this Blob URL</li>
</ol>
</dd>
<dt>Otherwise</dt>
- <dd>Return null</dd>
+ <dd>Return <code>null</code></dd>
</dl>
</p>
</dd>
@@ -1870,7 +1868,7 @@
If the object's <a href="#widl-ByteStream-type">type</a> attribute is not the empty string let <var>mime type</var> be its value.
</p>
<p>
- Set <a>readPending</a> of the <a>ReadableStream</a>.
+ Set <a>pendingRead</a> of the <a>ReadableStream</a> to a newly-created <a>PendingReadDescriptor</a>.
</p>
<p>
Let the <a href="https://dvcs.w3.org/hg/xhr/raw-file/tip/Overview.html#request-entity-body">request entity body</a> be the raw data represented by <var>data</var>.