FNVMASK parameter - Revision history

Mmarshall at 10:50, 21 May 2015

2015-05-21T10:50:26Z

← Older revision		Revision as of 10:50, 21 May 2015
Line 27:		Line 27:
	FOODAR, or FOOLAR, or FOOTAR.		FOODAR, or FOOLAR, or FOOTAR.
	If <var>FNVMASK</var> were set to X'34', bytes 3, 4, and 6 wouldn't need to match, so		If <var>FNVMASK</var> were set to X'34', bytes 3, 4, and 6 wouldn't need to match, so
	FOOBAR could be opened as ~~FOOLER~~, or ~~FOCKER~~, or ~~FOLDER~~, to name just a few.		FOOBAR could be opened as FOOLAP, or FOCKAZ, or FOLDAR, or FOXBAG to name just a few.

	<var>FNVMASK</var> facilitates sharing of data between Onlines, making it possible		<var>FNVMASK</var> facilitates sharing of data between Onlines, making it possible

Mmarshall at 10:36, 21 May 2015

2015-05-21T10:36:10Z

← Older revision		Revision as of 10:36, 21 May 2015
Line 26:		Line 26:
	That is, you might be able to open a file with physical name FOOBAR as		That is, you might be able to open a file with physical name FOOBAR as
	FOODAR, or FOOLAR, or FOOTAR.		FOODAR, or FOOLAR, or FOOTAR.
	If <var>FNVMASK</var> were set to X'34', bytes 3, 4, and 5 wouldn't need to match, so		If <var>FNVMASK</var> were set to X'34', bytes 3, 4, and 6 wouldn't need to match, so
	FOOBAR could be opened as FOOLER, or FOCKER, or FOLDER, to name just a few.		FOOBAR could be opened as FOOLER, or FOCKER, or FOLDER, to name just a few.

JAL at 20:27, 7 November 2014

2014-11-07T20:27:11Z

← Older revision		Revision as of 20:27, 7 November 2014
Line 9:		Line 9:
	<dd>User 0 CCAIN parameters		<dd>User 0 CCAIN parameters
	<dt>Related products		<dt>Related products
	<dd>[http://sirius-software.com/maint/download/perfr.pdf Sirius Performance Enhancements V3]]		<dd>[http://sirius-software.com/maint/download/perfr.pdf Sirius Performance Enhancements V3]
	<dt>Introduced		<dt>Introduced
	<dd>Before <var class="product">Sirius Mods</var> 6.7		<dd>Before <var class="product">Sirius Mods</var> 6.7

JAL at 17:41, 26 August 2014

2014-08-26T17:41:36Z

← Older revision		Revision as of 17:41, 26 August 2014
Line 9:		Line 9:
	<dd>User 0 CCAIN parameters		<dd>User 0 CCAIN parameters
	<dt>Related products		<dt>Related products
	<dd>[[Sirius Performance Enhancements V3]]		<dd>[http://sirius-software.com/maint/download/perfr.pdf Sirius Performance Enhancements V3]]
	<dt>Introduced		<dt>Introduced
	<dd>Before <var class="product">Sirius Mods</var> 6.7		<dd>Before <var class="product">Sirius Mods</var> 6.7
	</dl>		</dl>

	==Description==		==Description==
	This is a single-byte bitmask parameter.		This is a single-byte bitmask parameter.
	If set to a non-zero value, FNVMASK indicates the bytes in		If set to a non-zero value, <var>FNVMASK</var> indicates the bytes in
	filenames that are not required to match those in the filenames on the physical		filenames that are not required to match those in the filenames on the physical
	file pages.		file pages.
	Bytes in filenames corresponding to the ON bits in FNVMASK do not have to		Bytes in filenames corresponding to the ON bits in <var>FNVMASK</var> do not have to
	match the comparable bytes in the physical filenames.		match the comparable bytes in the physical filenames.

	For example, if FNVMASK is set to X'10', the fourth byte of a filename		For example, if <var>FNVMASK</var> is set to X'10', the fourth byte of a filename
	does not have to match the physical filename.		does not have to match the physical filename.
	That is, you might be able to open a file with physical name FOOBAR as		That is, you might be able to open a file with physical name FOOBAR as
	FOODAR, or FOOLAR, or FOOTAR.		FOODAR, or FOOLAR, or FOOTAR.
	If FNVMASK were set to X'34', bytes 3, 4, and 5 wouldn't need to match, so		If <var>FNVMASK</var> were set to X'34', bytes 3, 4, and 5 wouldn't need to match, so
	FOOBAR could be opened as FOOLER, or FOCKER, or FOLDER, to name just a few.		FOOBAR could be opened as FOOLER, or FOCKER, or FOLDER, to name just a few.

	FNVMASK facilitates sharing of data between Onlines, making it possible		<var>FNVMASK</var> facilitates sharing of data between Onlines, making it possible
	for two files with the same physical name to be opened in the same Online		for two files with the same physical name to be opened in the same Online
	by opening them under two different names that only ~~differ~~ in the bytes		by opening them under two different names that differ only in the bytes
	indicated by FNVMASK.		indicated by <var>FNVMASK</var>.
	This can be especially useful in moving procedures from one file to a		This can be especially useful in moving procedures from one file to a
	like-named file to be used in a different Online.		like-named file to be used in a different Online.

	'''Note:'''FNVMASK in no way alters the file-enqueuing behavior		<p class="note">'''Note:''' <var>FNVMASK</var> in no way alters the file-enqueuing behavior
	of <var class="product">Model 204</var> — no file opened for update by one Online can be opened		of <var class="product">Model 204</var> — no file opened for update by one Online can be opened
	by another, regardless of the name under which it is opened.		by another, regardless of the name under which it is opened. </p>

			Use of <var>FNVMASK</var> does not weaken page trailer validation, as page trailer
			validation at disk reads will validate the name against all bytes of
			the physical file name, regardless of <var>FNVMASK</var>.

	~~Use of FNVMASK does not weaken page trailer validation, as page trailer~~
	~~validation at disk reads will validate the name against all bytes of~~
	~~the physical file name, regardless of FNVMASK.~~
	[[Category:System parameters]]		[[Category:System parameters]]
	[[Category:Parameters]]		[[Category:Parameters]]

Tom at 19:53, 28 May 2014

2014-05-28T19:53:51Z

← Older revision		Revision as of 19:53, 28 May 2014
Line 26:		Line 26:
	FOODAR, or FOOLAR, or FOOTAR.		FOODAR, or FOOLAR, or FOOTAR.
	If FNVMASK were set to X'34', bytes 3, 4, and 5 wouldn't need to match, so		If FNVMASK were set to X'34', bytes 3, 4, and 5 wouldn't need to match, so
	FOOBAR could be opened as FOOLER, or FOCKER, or FOLDER, to name ~~jut~~ a few.		FOOBAR could be opened as FOOLER, or FOCKER, or FOLDER, to name just a few.

	FNVMASK facilitates sharing of data between Onlines, making it possible		FNVMASK facilitates sharing of data between Onlines, making it possible

DmeWiccan: Automatically generated page update

2013-08-27T16:28:07Z

Automatically generated page update

← Older revision		Revision as of 16:28, 27 August 2013
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			{{Template:FNVMASK parameter subtitle}}
	==Summary==		==Summary==
	<dl>		<dl>

JALWiccan: 1 revision

2012-10-30T01:02:36Z

1 revision

← Older revision	Revision as of 01:02, 30 October 2012
(No difference)

DmeWiccan: 1 revision

2012-10-30T01:02:25Z

1 revision

← Older revision		Revision as of 01:02, 30 October 2012
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	'''Note:'''FNVMASK in no way alters the file-enqueuing behavior		'''Note:'''FNVMASK in no way alters the file-enqueuing behavior
	of ''Model 204'' — no file opened for update by one Online can be opened		of <var class="product">Model 204</var> — no file opened for update by one Online can be opened
	by another, regardless of the name under which it is opened.		by another, regardless of the name under which it is opened.

DmeWiccan: 1 revision

2012-06-22T19:25:00Z

1 revision

New page

==Summary==
<dl>
<dt>Default value
<dd>X'00'
<dt>Parameter type
<dd>System
<dt>Where set
<dd>User 0 CCAIN parameters
<dt>Related products
<dd>[[Sirius Performance Enhancements V3]]
<dt>Introduced
<dd>Before <var class="product">Sirius Mods</var> 6.7
</dl>
==Description==
This is a single-byte bitmask parameter.
If set to a non-zero value, FNVMASK indicates the bytes in
filenames that are not required to match those in the filenames on the physical
file pages.
Bytes in filenames corresponding to the ON bits in FNVMASK do not have to
match the comparable bytes in the physical filenames.

For example, if FNVMASK is set to X'10', the fourth byte of a filename
does not have to match the physical filename.
That is, you might be able to open a file with physical name FOOBAR as
FOODAR, or FOOLAR, or FOOTAR.
If FNVMASK were set to X'34', bytes 3, 4, and 5 wouldn't need to match, so
FOOBAR could be opened as FOOLER, or FOCKER, or FOLDER, to name jut a few.

FNVMASK facilitates sharing of data between Onlines, making it possible
for two files with the same physical name to be opened in the same Online
by opening them under two different names that only differ in the bytes
indicated by FNVMASK.
This can be especially useful in moving procedures from one file to a
like-named file to be used in a different Online.

'''Note:'''FNVMASK in no way alters the file-enqueuing behavior
of ''Model 204'' — no file opened for update by one Online can be opened
by another, regardless of the name under which it is opened.

Use of FNVMASK does not weaken page trailer validation, as page trailer
validation at disk reads will validate the name against all bytes of
the physical file name, regardless of FNVMASK.
[[Category:System parameters]]
[[Category:Parameters]]

JAL at 01:11, 1 October 2010

2010-10-01T01:11:17Z

New page

<dl>
<dt>Default value
<dd>X'00'
<dt>Parameter type
<dd>System
<dt>Where set
<dd>User 0 CCAIN parameters
<dt>Related products
<dd>[[Sirius Performance Enhancements V3]]
<dt>Introduced
<dd>Before [[Sirius Mods]] 6.7
</dl>
This is a single-byte bitmask parameter.
If set to a non-zero value, FNVMASK indicates the bytes in
filenames that are not required to match those in the filenames on the physical
file pages.
Bytes in filenames corresponding to the ON bits in FNVMASK do not have to
match the comparable bytes in the physical filenames.

For example, if FNVMASK is set to X'10', the fourth byte of a filename
does not have to match the physical filename.
That is, you might be able to open a file with physical name FOOBAR as
FOODAR, or FOOLAR, or FOOTAR.
If FNVMASK were set to X'34', bytes 3, 4, and 5 wouldn't need to match, so
FOOBAR could be opened as FOOLER, or FOCKER, or FOLDER, to name jut a few.

FNVMASK facilitates sharing of data between Onlines, making it possible
for two files with the same physical name to be opened in the same Online
by opening them under two different names that only differ in the bytes
indicated by FNVMASK.
This can be especially useful in moving procedures from one file to a
like-named file to be used in a different Online.

'''Note:'''FNVMASK in no way alters the file-enqueuing behavior
of ''Model 204'' — no file opened for update by one Online can be opened
by another, regardless of the name under which it is opened.

Use of FNVMASK does not weaken page trailer validation, as page trailer
validation at disk reads will validate the name against all bytes of
the physical file name, regardless of FNVMASK.
[[Category:System Parameters]]
[[Category:Parameters]]