NumberOfBuffers (Dataset property) - Revision history

JAL2: /* Syntax terms */

2011-05-20T22:31:37Z

Syntax terms

← Older revision		Revision as of 22:31, 20 May 2011
Line 16:		Line 16:
	<td>A reference to an instance of a <var>Dataset</var> object.		<td>A reference to an instance of a <var>Dataset</var> object.
	</td></tr>		</td></tr>
	<tr><th>%newNumber</th>		<tr><th>newNumber</th>
	<td>A variable to be used to set thenumber of buffers for the <var class="term">dataset</var> object.		<td>A variable to be used to set thenumber of buffers for the <var class="term">dataset</var> object.
	</td></tr></table>		</td></tr></table>

JAL2 at 22:00, 20 May 2011

2011-05-20T22:00:02Z

← Older revision		Revision as of 22:00, 20 May 2011
Line 10:		Line 10:
	===Syntax terms===		===Syntax terms===
	<table class="syntaxTable">		<table class="syntaxTable">
	<tr><th>%~~numbuf~~</th>		<tr><th>%currentNumber</th>
	<td>A variable to receive the number of buffers for the <var>~~Dataset~~</var> or		<td>A variable to receive the number of buffers for the <var class="term">dataset</var> object.
	~~to be used to set the <var>Dataset</var>'s number of buffers~~.
	</td></tr>		</td></tr>
	<tr><th>%dataset</th>		<tr><th>dataset</th>
	<td>A reference to an instance of a <var>Dataset</var> object.		<td>A reference to an instance of a <var>Dataset</var> object.
			</td></tr>
			<tr><th>%newNumber</th>
			<td>A variable to be used to set thenumber of buffers for the <var class="term">dataset</var> object.
	</td></tr></table>		</td></tr></table>

	==Usage notes==		==Usage notes==
	<ul>		<ul>

DmeWiccan: 1 revision

2011-05-20T18:03:36Z

1 revision

← Older revision	Revision as of 18:03, 20 May 2011
(No difference)

JAL2 at 18:03, 20 May 2011

2011-05-20T18:03:34Z

← Older revision		Revision as of 18:03, 20 May 2011
Line 1:		Line 1:
			{{Template:Dataset:NumberOfBuffers subtitle}}

	This property indicates the number of in-core buffers to be used to hold		This property indicates the number of in-core buffers to be used to hold
	input or output blocks for the <var>Dataset</var>.		input or output blocks for the <var>Dataset</var>.
Line 4:		Line 6:
	An attempt to set it while the dataset is not closed results in request		An attempt to set it while the dataset is not closed results in request
	cancellation.		cancellation.
	==~~NumberOfBuffers syntax~~==		==Syntax==
	~~<p class="pre"> %numbuf = %dataset~~:~~NumberofBuffers~~		{{Template:Dataset:NumberOfBuffers syntax}}

	~~%dataset~~:NumberOfBuffers ~~= %numbuf~~
	~~</p>~~
	===Syntax terms===		===Syntax terms===
	<table class="syntaxTable">		<table class="syntaxTable">
Line 19:		Line 18:

	</td></tr></table>		</td></tr></table>
	==Usage ~~Notes~~==		==Usage notes==
	<ul>		<ul>
	<li>The default for <var>NumberOfBuffers</var> is 1.		<li>The default for <var>NumberOfBuffers</var> is 1.
Line 31:		Line 30:
	<var>[[BlockSize (Dataset property)\|BlockSize]]</var> in bytes times its <var>NumberOfBuffers</var>.		<var>[[BlockSize (Dataset property)\|BlockSize]]</var> in bytes times its <var>NumberOfBuffers</var>.
	</ul>		</ul>
			==See also==
			{{Template:Dataset:NumberOfBuffers footer}}

JAL2 at 16:55, 20 May 2011

2011-05-20T16:55:16Z

← Older revision		Revision as of 16:55, 20 May 2011
Line 1:		Line 1:
	~~==NumberOfBuffers (Dataset property)==~~
	This property indicates the number of in-core buffers to be used to hold		This property indicates the number of in-core buffers to be used to hold
	input or output blocks for the <var>Dataset</var>.		input or output blocks for the <var>Dataset</var>.

JAL2: Created page with "==NumberOfBuffers (Dataset property)== This property indicates the number of in-core buffers to be used to hold input or output blocks for the `Dataset`. It is only sett..."

2011-05-20T16:43:19Z

Created page with "==NumberOfBuffers (Dataset property)== This property indicates the number of in-core buffers to be used to hold input or output blocks for the <var>Dataset</var>. It is only sett..."

New page

==NumberOfBuffers (Dataset property)==
This property indicates the number of in-core buffers to be used to hold
input or output blocks for the <var>Dataset</var>.
It is only settable while the object is in the <var>Closed</var> state.
An attempt to set it while the dataset is not closed results in request
cancellation.
==NumberOfBuffers syntax==
<p class="pre"> %numbuf = %dataset:NumberofBuffers

%dataset:NumberOfBuffers = %numbuf
</p>
===Syntax terms===
<table class="syntaxTable">
<tr><th>%numbuf</th>
<td>A variable to receive the number of buffers for the <var>Dataset</var> or
to be used to set the <var>Dataset</var>'s number of buffers.
</td></tr>
<tr><th>%dataset</th>
<td>A reference to an instance of a <var>Dataset</var> object.

</td></tr></table>
==Usage Notes==
<ul>
<li>The default for <var>NumberOfBuffers</var> is 1.
This causes all block reads from or writes to the dataset to be synchronous
on a thread level.
<li><var>NumberOfBuffers</var> must be a value between 1 and 255, inclusive.
<li>If <var>NumberOfBuffers</var> is set to a value greater than 99 on a system that
does not support 31-bit BSAM, it is silently set down to 99.
<li>The buffers for a dataset are allocated in virtual storage.
The amount of virtual storage used for the buffers is the dataset's
<var>[[BlockSize (Dataset property)|BlockSize]]</var> in bytes times its <var>NumberOfBuffers</var>.
</ul>