Methods summary
public
string|null
|
#
GetId( )
Get form id, required to configure.
Used to identify session data, error messages,
CSRF tokens, html form attribute id value and much more.
Get form id, required to configure.
Used to identify session data, error messages,
CSRF tokens, html form attribute id value and much more.
Returns
string|null
|
public
string|null
|
#
GetAction( )
Get form submitting URL value.
It could be relative or absolute, anything
to complete classic html form attribute action .
Get form submitting URL value.
It could be relative or absolute, anything
to complete classic html form attribute action .
Returns
string|null
|
public
string|null
|
#
GetMethod( )
Get form http submitting method. POST by default.
Use GET only if form data contains only ASCII characters.
Possible values: 'POST' | 'GET'
You can use constants:
- \MvcCore\Ext\IForm::METHOD_POST
- \MvcCore\Ext\IForm::METHOD_GET
Get form http submitting method. POST by default.
Use GET only if form data contains only ASCII characters.
Possible values: 'POST' | 'GET'
You can use constants:
- \MvcCore\Ext\IForm::METHOD_POST
- \MvcCore\Ext\IForm::METHOD_GET
Returns
string|null
|
public
string|null
|
#
GetTitle( )
Get form title, global HTML attribute, optional.
Get form title, global HTML attribute, optional.
Returns
string|null
|
public
string|null
|
#
GetEnctype( )
Get form enctype attribute - how the form values will be encoded
to send them to the server. Possible values are:
- application/x-www-form-urlencoded
By default, it means all form values will be encoded to
key1=value1&key2=value2... string.
Constant: \MvcCore\Ext\IForm::ENCTYPE_URLENCODED .
- multipart/form-data
Data will not be encoded to URL string form, this value is required,
when you are using forms that have a file upload control.
Constant: \MvcCore\Ext\IForm::ENCTYPE_MULTIPART .
- text/plain
Spaces will be converted to + symbols, but no other special
characters will be encoded.
Constant: \MvcCore\Ext\IForm::ENCTYPE_PLAINTEXT .
Get form enctype attribute - how the form values will be encoded
to send them to the server. Possible values are:
- application/x-www-form-urlencoded By default, it means all form values will be encoded to key1=value1&key2=value2... string. Constant: \MvcCore\Ext\IForm::ENCTYPE_URLENCODED .
- multipart/form-data Data will not be encoded to URL string form, this value is required, when you are using forms that have a file upload control. Constant: \MvcCore\Ext\IForm::ENCTYPE_MULTIPART .
- text/plain Spaces will be converted to + symbols, but no other special characters will be encoded. Constant: \MvcCore\Ext\IForm::ENCTYPE_PLAINTEXT .
Returns
string|null
|
public
string|null
|
#
GetTarget( )
Get form target attribute - where to display the response that is
received after submitting the form. This is a name of, or keyword for,
a browsing context (e.g. tab, window, or inline frame). Default value
is NULL to not render any <form> element target attribute.
The following keywords have special meanings:
- _self : Load the response into the same browsing context as the
current one. This value is the default if the attribute
is not specified.
- _blank : Load the response into a new unnamed browsing context.
- _parent : Load the response into the parent browsing context of
the current one. If there is no parent, this option
behaves the same way as _self .
- _top : Load the response into the top-level browsing context
(i.e. the browsing context that is an ancestor of the
current one, and has no parent). If there is no parent,
this option behaves the same way as _self .
- iframename : The response is displayed in a named <iframe> .
Get form target attribute - where to display the response that is
received after submitting the form. This is a name of, or keyword for,
a browsing context (e.g. tab, window, or inline frame). Default value
is NULL to not render any <form> element target attribute.
The following keywords have special meanings:
- _self : Load the response into the same browsing context as the current one. This value is the default if the attribute is not specified.
- _blank : Load the response into a new unnamed browsing context.
- _parent : Load the response into the parent browsing context of the current one. If there is no parent, this option behaves the same way as _self .
- _top : Load the response into the top-level browsing context (i.e. the browsing context that is an ancestor of the current one, and has no parent). If there is no parent, this option behaves the same way as _self .
- iframename : The response is displayed in a named <iframe> .
Returns
string|null
|
public
boolean|null
|
#
GetAutoComplete( )
Indicates whether input elements can by default have their values automatically
completed by the browser. This setting can be overridden by an autocomplete
attribute on an element belonging to the form. Possible values are:
- FALSE ('off' ): The user must explicitly enter a value into each field for
every use, or the document provides its own auto-completion
method; the browser does not automatically complete entries.
- TRUE ('on' ): The browser can automatically complete values based on
values that the user has previously entered in the form.
- NULL Do not render the attribute.
For most modern browsers setting the autocomplete attribute will not prevent
a browser's password manager from asking the user if they want to store login
fields (username and password), if the user permits the storage the browser will
autofill the login the next time the user visits the page. See The autocomplete
attribute and login fields.
Indicates whether input elements can by default have their values automatically
completed by the browser. This setting can be overridden by an autocomplete
attribute on an element belonging to the form. Possible values are:
- FALSE ('off' ): The user must explicitly enter a value into each field for every use, or the document provides its own auto-completion method; the browser does not automatically complete entries.
- TRUE ('on' ): The browser can automatically complete values based on values that the user has previously entered in the form.
- NULL Do not render the attribute.
For most modern browsers setting the autocomplete attribute will not prevent
a browser's password manager from asking the user if they want to store login
fields (username and password), if the user permits the storage the browser will
autofill the login the next time the user visits the page. See The autocomplete
attribute and login fields.
Returns
boolean|null
|
public
boolean|null
|
#
GetNoValidate( )
This Boolean attribute indicates that the form is not to be validated when
submitted. If this attribute is not specified (and therefore the form is
validated), this default setting can be overridden by a formnovalidate
attribute on a <button> or <input> element belonging to the form.
Only TRUE renders the form attribute.
This Boolean attribute indicates that the form is not to be validated when
submitted. If this attribute is not specified (and therefore the form is
validated), this default setting can be overridden by a formnovalidate
attribute on a <button> or <input> element belonging to the form.
Only TRUE renders the form attribute.
Returns
boolean|null
|
public
string[]
|
#
GetAcceptCharsets( )
A list of character encodings that the server accepts. The browser
uses them in the order in which they are listed. The default value,
the reserved string 'UNKNOWN' , indicates the same encoding as that
of the document containing the form element.
A list of character encodings that the server accepts. The browser
uses them in the order in which they are listed. The default value,
the reserved string 'UNKNOWN' , indicates the same encoding as that
of the document containing the form element.
Returns
string[]
|
public
string|null
|
#
GetLang( )
Get lang property to complete optional translator language argument automatically.
If you are operating in multi-language project and you want to use
translator in \MvcCore\Ext\Form , this lang property with target language code
serves to translate every visible text into target lang. Use this property
with $form->translator property.
Get lang property to complete optional translator language argument automatically.
If you are operating in multi-language project and you want to use
translator in \MvcCore\Ext\Form , this lang property with target language code
serves to translate every visible text into target lang. Use this property
with $form->translator property.
Returns
string|null
|
public
string|null
|
#
GetLocale( )
Get $form->locale , upper case locale code or NULL , usually used to create
proper validator for zip codes, currencies etc...
If you are operating in multi-language project and you want to use
in \MvcCore\Ext\Form form field validators for locale specific needs,
$form->locale property helps you to process validation functionality
with proper validator by locale code.
Get $form->locale , upper case locale code or NULL , usually used to create
proper validator for zip codes, currencies etc...
If you are operating in multi-language project and you want to use
in \MvcCore\Ext\Form form field validators for locale specific needs,
$form->locale property helps you to process validation functionality
with proper validator by locale code.
Returns
string|null
|
public
string[]
&
|
#
GetCssClasses( )
Get form field HTML element css classes strings as array.
Default value is an empty array to not render HTML class attribute.
Get form field HTML element css classes strings as array.
Default value is an empty array to not render HTML class attribute.
Returns
string[]
|
public
array
&
|
#
GetAttributes( )
Get form html element additional attributes.
To add any other attribute for html <form> element,
set here key/value array, keys will be used as attribute names,
values as attribute values, simple. All previously configured additional
attributes will be replaced by given attributes to this function.
Get form html element additional attributes.
To add any other attribute for html <form> element,
set here key/value array, keys will be used as attribute names,
values as attribute values, simple. All previously configured additional
attributes will be replaced by given attributes to this function.
Returns
array
|
public
string|null
|
#
GetSuccessUrl( )
Get form success submit URL string to redirect after, relative or absolute,
to specify, where to redirect user after form has been submitted successfully.
It's required to use \MvcCore\Ext\Form like this, if you want to use method
$form->SubmittedRedirect(); , at the end of custom Submit() method implementation,
you need to specify at least success and error URL strings.
Get form success submit URL string to redirect after, relative or absolute,
to specify, where to redirect user after form has been submitted successfully.
It's required to use \MvcCore\Ext\Form like this, if you want to use method
$form->SubmittedRedirect(); , at the end of custom Submit() method implementation,
you need to specify at least success and error URL strings.
Returns
string|null
|
public
string|null
|
#
GetPrevStepUrl( )
Get form success submit previous step URL string, relative or absolute, to specify,
where to redirect user after form has been submitted successfully and submit button
will be recognized as submit type to switch form result property $form->result to value 2 .
Which means "previous step" redirection after successful submit. This functionality
to switch result value to 2 is up to you. This field is designed only for you as empty.
It's not required to use \MvcCore\Ext\Form like this, but if you want to use method
$form->SubmittedRedirect(); at the end of custom Submit() method implementation,
and you want to go to "previous step" by one submit button or stay in the same page by
another submit button, this is very good and comfortable pattern.
Get form success submit previous step URL string, relative or absolute, to specify,
where to redirect user after form has been submitted successfully and submit button
will be recognized as submit type to switch form result property $form->result to value 2 .
Which means "previous step" redirection after successful submit. This functionality
to switch result value to 2 is up to you. This field is designed only for you as empty.
It's not required to use \MvcCore\Ext\Form like this, but if you want to use method
$form->SubmittedRedirect(); at the end of custom Submit() method implementation,
and you want to go to "previous step" by one submit button or stay in the same page by
another submit button, this is very good and comfortable pattern.
Returns
string|null
|
public
string|null
|
#
GetNextStepUrl( )
Get form success submit next step URL string, relative or absolute, to specify,
where to redirect user after form has been submitted successfully and submit button
will be recognized as submit type to switch form result property $form->result to value 3 .
Which means "next step" redirection after successful submit. This functionality
to switch result value to 3 is up to you. This field is designed only for you as empty.
It's not required to use \MvcCore\Ext\Form like this, but if you want to use method
$form->SubmittedRedirect(); at the end of custom Submit() method implementation,
and you want to go to "next step" by one submit button or stay in the same page by
another submit button, this is very good and comfortable pattern.
Get form success submit next step URL string, relative or absolute, to specify,
where to redirect user after form has been submitted successfully and submit button
will be recognized as submit type to switch form result property $form->result to value 3 .
Which means "next step" redirection after successful submit. This functionality
to switch result value to 3 is up to you. This field is designed only for you as empty.
It's not required to use \MvcCore\Ext\Form like this, but if you want to use method
$form->SubmittedRedirect(); at the end of custom Submit() method implementation,
and you want to go to "next step" by one submit button or stay in the same page by
another submit button, this is very good and comfortable pattern.
Returns
string|null
|
public
string|null
|
#
GetErrorUrl( )
Get form error submit URL string, relative or absolute, to specify,
where to redirect user after has not been submitted successfully.
It's not required to use \MvcCore\Ext\Form like this, but if you want to use method
$form->SubmittedRedirect(); at the end of custom Submit() method implementation,
you need to specify at least success and error URL strings.
Get form error submit URL string, relative or absolute, to specify,
where to redirect user after has not been submitted successfully.
It's not required to use \MvcCore\Ext\Form like this, but if you want to use method
$form->SubmittedRedirect(); at the end of custom Submit() method implementation,
you need to specify at least success and error URL strings.
Returns
string|null
|
public
integer|null
|
#
GetResult( )
Get form submit result state. Submit could have two basic values (or three values - for next step):
NULL - No Submit() method has been called yet. Call $form->Submit(); before.
0 - Submit has errors. User will be redirected after submit to error url.
\MvcCore\Ext\Form::RESULT_ERRORS
1 - Submit was successful. User will be redirected after submit to success url.
\MvcCore\Ext\Form::RESULT_SUCCESS
2 - Submit was successful. User will be redirected after submit to next step url.
\MvcCore\Ext\IForm::RESULT_NEXT_PAGE
Get form submit result state. Submit could have two basic values (or three values - for next step):
NULL - No Submit() method has been called yet. Call $form->Submit(); before.
0 - Submit has errors. User will be redirected after submit to error url. \MvcCore\Ext\Form::RESULT_ERRORS
1 - Submit was successful. User will be redirected after submit to success url. \MvcCore\Ext\Form::RESULT_SUCCESS
2 - Submit was successful. User will be redirected after submit to next step url. \MvcCore\Ext\IForm::RESULT_NEXT_PAGE
Returns
integer|null
|
public
callable|null
|
#
GetTranslator( )
Get translator to translate field labels, options, placeholders and error messages.
Translator has to be callable (it could be closure function or array
with class_name/instance and method name string). First argument
of callable has to be a translation key and second argument
has to be array with numeric replacements to replace them in translated value.
Result of callable object has to be a string - translated key for called language.
Get translator to translate field labels, options, placeholders and error messages.
Translator has to be callable (it could be closure function or array
with class_name/instance and method name string). First argument
of callable has to be a translation key and second argument
has to be array with numeric replacements to replace them in translated value.
Result of callable object has to be a string - translated key for called language.
Returns
callable|null
|
public
boolean
|
#
GetTranslate( )
Get internal flag to quickly know if form fields will be translated or not.
Automatically completed to TRUE if $form->translator is not NULL and also if
$form->translator is callable . FALSE otherwise. Default value is FALSE .
Get internal flag to quickly know if form fields will be translated or not.
Automatically completed to TRUE if $form->translator is not NULL and also if
$form->translator is callable . FALSE otherwise. Default value is FALSE .
Returns
boolean
|
public
boolean
|
#
GetDefaultRequired( )
Get default switch how to set every form control to be required by default.
If you define directly any control to NOT be required, it will NOT be required.
This is only value used as DEFAULT VALUE for form fields, not to strictly define
required flag value in controls. Default value is FALSE .
Get default switch how to set every form control to be required by default.
If you define directly any control to NOT be required, it will NOT be required.
This is only value used as DEFAULT VALUE for form fields, not to strictly define
required flag value in controls. Default value is FALSE .
Returns
boolean
|
public
array
&
|
#
GetValues( )
Get multiple fields values as key/value array.
Get multiple fields values as key/value array.
Returns
array
|
public
array
&
|
#
GetErrors( )
Get all form errors. Returned collection is array with arrays.
Every array in collection have first item as error message
string and second argument (optional) as field name string or
array with field names strings, where error happened.
Get all form errors. Returned collection is array with arrays.
Every array in collection have first item as error message
string and second argument (optional) as field name string or
array with field names strings, where error happened.
Returns
array
|
public
integer|null
|
#
GetSessionExpiration( )
Get session expiration in seconds. Default value is zero seconds (0 ).
Zero value (0 ) means "until the browser is closed" if there is
no higher namespace expiration in any other session namespace.
If there is found any autorization service and authenticated user,
default value is set by authorization expiration time.
Get session expiration in seconds. Default value is zero seconds (0 ).
Zero value (0 ) means "until the browser is closed" if there is
no higher namespace expiration in any other session namespace.
If there is found any autorization service and authenticated user,
default value is set by authorization expiration time.
Returns
integer|null
|
public
integer|null
|
#
GetBaseTabIndex( )
Get base tab-index value for every field in form, which has defined tab-index value (different from NULL ).
This value could move tab-index values for each field into higher or lower values by needs,
where is form currently rendered.
Get base tab-index value for every field in form, which has defined tab-index value (different from NULL ).
This value could move tab-index values for each field into higher or lower values by needs,
where is form currently rendered.
Returns
integer|null
|
public
integer
|
#
GetFieldNextAutoTabIndex( )
This method is INTERNAL, used by fields in pre-dispatch rendering moment.
This method returns next automatic tab-index value for field.
This method is INTERNAL, used by fields in pre-dispatch rendering moment.
This method returns next automatic tab-index value for field.
Returns
integer
|
public
string
|
#
GetDefaultFieldsRenderMode( )
Get default control/label rendering mode for each form control/label.
Default values is string normal , it means label will be rendered
before control, only label for checkbox and radio button will be
rendered after control.
Get default control/label rendering mode for each form control/label.
Default values is string normal , it means label will be rendered
before control, only label for checkbox and radio button will be
rendered after control.
Returns
string
|
public
string
|
#
GetErrorsRenderMode( )
Get errors rendering mode, by default configured as string: all-together .
It means all errors are rendered naturally at form begin together in one HTML div.errors element.
If you are using custom template for form - you have to call after form beginning: echo $this->RenderErrors();
to get all errors into template.
Get errors rendering mode, by default configured as string: all-together .
It means all errors are rendered naturally at form begin together in one HTML div.errors element.
If you are using custom template for form - you have to call after form beginning: echo $this->RenderErrors();
to get all errors into template.
Returns
string
|
public
string|null
|
#
GetViewScript( )
Get custom form view script relative path without .phtml extension.
View script could be TRUE /FALSE to render or not form by view script name
completed automatically with form id and configured view extension (.phtml) or explicit
relative view script path defined by string. Automatically completed form view
script path and also explicitly defined form view script path by string are
located in directory /App/Views/Forms by default. If you want to change this
base directory - use \MvcCore\Ext\Forms\View::SetFormsDir(); static method.
Get custom form view script relative path without .phtml extension.
View script could be TRUE /FALSE to render or not form by view script name
completed automatically with form id and configured view extension (.phtml) or explicit
relative view script path defined by string. Automatically completed form view
script path and also explicitly defined form view script path by string are
located in directory /App/Views/Forms by default. If you want to change this
base directory - use \MvcCore\Ext\Forms\View::SetFormsDir(); static method.
Returns
string|null
|
public
string|null
|
#
GetViewClass( )
Get form custom template full class name to create custom view object.
Default value is \MvcCore\Ext\Forms\View extended from \MvcCore\View .
Get form custom template full class name to create custom view object.
Default value is \MvcCore\Ext\Forms\View extended from \MvcCore\View .
Returns
string|null
|
public
array
&
|
#
GetJsSupportFiles( )
Get supporting javascript files configuration.
Every record in returned array is an array with:
0 - string - Supporting javascript file relative path from protected \MvcCore\Ext\Form::$jsAssetsRootDir .
1 - string - Supporting javascript full class name inside supporting file.
2 - array - Supporting javascript constructor params.
Get supporting javascript files configuration.
Every record in returned array is an array with: 0 - string - Supporting javascript file relative path from protected \MvcCore\Ext\Form::$jsAssetsRootDir . 1 - string - Supporting javascript full class name inside supporting file. 2 - array - Supporting javascript constructor params.
Returns
array
|
public
string[]
&
|
#
GetCssSupportFiles( )
Get supporting css files configuration, an array with supporting
css file relative paths from protected \MvcCore\Ext\Form::$cssAssetsRootDir .
Get supporting css files configuration, an array with supporting
css file relative paths from protected \MvcCore\Ext\Form::$cssAssetsRootDir .
Returns
string[]
|
public
callable|null
|
#
GetJsSupportFilesRenderer( )
Get javascript support files external renderer. Given callable has
to accept first argument to be \SplFileInfo about external javascript
supporting file. Javascript renderer must add given supporting javascript
file into HTML only once.
Get javascript support files external renderer. Given callable has
to accept first argument to be \SplFileInfo about external javascript
supporting file. Javascript renderer must add given supporting javascript
file into HTML only once.
Returns
callable|null
|
public
callable|null
|
#
GetCssSupportFilesRenderer( )
Get css support files external renderer. Given callable has
to accept first argument to be \SplFileInfo about external css
supporting file. Css renderer must add given supporting css
file into HTML only once.
Get css support files external renderer. Given callable has
to accept first argument to be \SplFileInfo about external css
supporting file. Css renderer must add given supporting css
file into HTML only once.
Returns
callable|null
|
public
boolean
|
#
GetFormTagRenderingStatus( )
This is INTERNAL method for rendering fields.
Value TRUE means <form> tag is currently rendered inside, FALSE otherwise.
This is INTERNAL method for rendering fields.
Value TRUE means <form> tag is currently rendered inside, FALSE otherwise.
Returns
boolean
|
public
integer|null
|
#
GetPhpIniSizeLimit( string $iniVarName )
Get PHP data limit as integer value by given
PHP INI variable name. Return NULL for empty
or non-existing values.
Get PHP data limit as integer value by given
PHP INI variable name. Return NULL for empty
or non-existing values.
Parameters
Returns
integer|null
|
public static
string
|
#
ConvertBytesIntoHumanForm( integer $bytes, integer $precision = 1 )
Converts a long integer of bytes into a readable format e.g KB, MB, GB, TB, YB.
Converts a long integer of bytes into a readable format e.g KB, MB, GB, TB, YB.
Parameters
- $bytes
- The number of bytes.
- $precision
- Default
1 .
Returns
string
|
public static
integer
|
#
ConvertBytesFromHumanForm( string $humanValue )
Converts readable bytes format e.g KB, MB, GB, TB, YB into long integer of bytes.
Converts readable bytes format e.g KB, MB, GB, TB, YB into long integer of bytes.
Parameters
- $humanValue
- Readable bytes format e.g KB, MB, GB, TB, YB.
Returns
integer
|
public static
string|null
|
#
GetJsSupportFilesRootDir( )
Get MvcCore Form javascript support files root directory.
After \MvcCore\Ext\Form instance is created, this value is completed to library internal
assets directory. If you want to create any custom field with custom javascript file(s),
you can do it by loading github package mvccore/form-js to your custom directory,
you have to create there any other custom javascript support file for any custom field
and change this property value to that javascripts directory. All supporting javascripts
for \MvcCore\Ext\Form fields will be loaded now from there.
Get MvcCore Form javascript support files root directory.
After \MvcCore\Ext\Form instance is created, this value is completed to library internal
assets directory. If you want to create any custom field with custom javascript file(s),
you can do it by loading github package mvccore/form-js to your custom directory,
you have to create there any other custom javascript support file for any custom field
and change this property value to that javascripts directory. All supporting javascripts
for \MvcCore\Ext\Form fields will be loaded now from there.
Returns
string|null
|
public static
string|null
|
#
GetCssSupportFilesRootDir( )
Get MvcCore Form css support files root directory.
After \MvcCore\Ext\Form instance is created, this value is completed to library internal
assets directory. If you want to create any custom field with custom css file(s),
you can do it by creating an empty directory somewhere, by copying every css file from
library assets directory into it, by creating any other custom css for any custom field
and by change this property value to that directory. All supporting css for \MvcCore\Ext\Form
fields will be loaded now from there.
Get MvcCore Form css support files root directory.
After \MvcCore\Ext\Form instance is created, this value is completed to library internal
assets directory. If you want to create any custom field with custom css file(s),
you can do it by creating an empty directory somewhere, by copying every css file from
library assets directory into it, by creating any other custom css for any custom field
and by change this property value to that directory. All supporting css for \MvcCore\Ext\Form
fields will be loaded now from there.
Returns
string|null
|
public static
string[]
|
#
GetValidatorsNamespaces( )
Get form validators base namespaces to create validator instance by it's class name.
Validator will be created by class existence in this namespaces order.
Get form validators base namespaces to create validator instance by it's class name.
Validator will be created by class existence in this namespaces order.
Returns
string[]
|
public static
MvcCore\Ext\Form
|
#
GetById( string $formId )
Get form instance by form id string.
If no form instance found, thrown an RuntimeException .
Get form instance by form id string.
If no form instance found, thrown an RuntimeException .
Parameters
Returns
Throws
RuntimeException
|
public static
MvcCore\Ext\Forms\Field
|
#
GetAutoFocusedFormField( )
Get form field instance with defined autofocus boolean attribute.
If there is no field in any form with this attribute, return NULL .
Get form field instance with defined autofocus boolean attribute.
If there is no field in any form with this attribute, return NULL .
Returns
|


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|
| What's New In This Version |
The significant difference between version 2.7.4 and version 2.6.9 is that this new version achieves compatibility with WebTV Plus set-top boxes. WebTV implemented support for many of Beatnik's music playback capabilities in their WebTV Plus Receiver, including the playback of RMF files. However, certain issues were discovered with the implementation of JavaScript that made it necessary to make significant changes to the Music Object API implementation. These changes are all "under the hood" and don't affect how Beatnik Web content authors use the API - all the methods, functions, properties, etc. are still exactly the same.
One unfortunate result of achieving Music Object support for the WebTV Plus Receiver is that the "music-object.js" file grew in size by roughly 2Kb - still a modest price to pay for content support across more platforms. It is WebTV's intention to eliminate the need for the Music Object workarounds in future versions of the WebTV Plus software. At this stage, it may be possible to remove the workarounds and once again reduce the size of the "music-object.js" file by 2Kb.
It is no longer necessary, with the magicEmbed method and the mo_magicEmbed function, to specify the "<EMBED " text that opens the EMBED tag or the ">" that closes the EMBED tag. This makes use of magicEmbed and mo_magicEmbed a little simpler and will save a little time in authoring pages, as well as saving a small amount of file size in pages sonified with Music Object. OK, so it's not a lot, but every little bit counts, right? The other advantage to this simplified syntax is that it eliminates the plug-in specific "EMBED" tag language and helps to make magicEmbed and mo_magicEmbed more neutral to Netscape Navigator and Microsoft Internet Explorer.
Here is an example of how to change your code to make use of this simpler syntax...
| BEFORE Music Object 2.7.4 |
myMO.magicEmbed ('<EMBED SRC="trance.rmf" WIDTH=2 HEIGHT=2 HIDDEN AUTOSTART=TRUE>'); |
| FROM Music Object 2.7.4 |
myMO.magicEmbed ('SRC="trance.rmf" WIDTH=2 HEIGHT=2 HIDDEN AUTOSTART=TRUE'); |
Old content that was authored before Music Object 2.7.4 should still continue to work with "<EMBED " and ">" specified.
Some optimizations were made to offset the increase in code size as a result of achieving support for WebTV. None of these code optimizations require any changes to authored content.


--- layout: post title: Brighton rocks in lottery survey date: 2006-08-04 00:00:00 category: personal ---
Brighton rocks in lottery survey: "People in Brighton are the most positive and feel the luckiest of any town or city in the UK, according to a survey by the National Lottery."
But Reading came third??? Christ... having lived there for 3 years I'm impressed by anyone resident in that particular hole who retains a positive outlook on life...


Nearly 14,000 people are on the liver transplant list, according to the American Liver Foundation.   It’s a surgery with a unique twist.Gwen Finlayson’s autoimmune hepatitis led to cirrhosis years ago.“A lot of fatigue, and that really is the biggest thing, not being able to have the energy to do the things you want to do,” she said of the symptoms.
She was on the liver transplant list. Then, her son, Brandon, offered to donate part of his.“She needed this, and for the couple months of discomfort, that was well worth it,” he said.“The reason why a live donation is important to do before the patients get too sick is because you’re not doing a full liver, you’re only doing 40% to 60%,” said Dr. Manuel Rodriguez-Davalos, the director of the living liver donor transplant program at Intermountain Healthcare Transplant Services.Gwen is petite, so Rodriguez-Davalos took Brandon’s smaller left lobe, which is usually done for adolescents. It’s the first time it’s been done between adults in Utah.The family and surgeons knew exactly how both livers looked before transplant. The team used 3D imaging to print models.
“The fact that we’re able to kind of go over step by step, it’s just so much easier than just seeing a CAT scan on the screen,” Rodriguez-Davalos said.“Beforehand, we could see her liver, we could see my liver, and we could see exactly how they were going to cut it open,” Brandon said.Brandon was home in five days, Gwen in nine. Both their livers grew back to functioning size.Now, Gwen is looking ahead and thankful every day.“When I have milestones, when things are great, when things are going well, I try to reach out and tell him, because I want him to know how grateful I am,” she said.Rodriguez-Davalos plans to make 3D models of Brandon’s and Gwen’s livers in a year to see how they’ve grown.Intermountain Transplant Services recently got a grant to create a 3D-printed liver library. Rodriguez-Davalos says models of donor and recipient livers will help educate patients and surgeons in training.
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{% extends "base.html" %} {% comment %} Permission denied error template Author: Jonathan Karr<EMAIL_ADDRESS>Affiliation: Covert Lab, Department of Bioengineering, Stanford University Created: 2014-03-24 {% endcomment %} {% block content %}
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If you continue to see this error message please contact us at wholecell@lists.stanford.edu.


Interface GridCoverageResource
-
public interface GridCoverageResource extends DataSet
Access to data values in a n-dimensional grid. A coverage is a kind of function with the following properties:- The function input is a position valid in the coverage domain. In the particular case of
GridCoverage
, the domain is described by a grid geometry. - The function output is a record of values in the coverage range. In the particular case of
GridCoverage
, the range is described by a list of sample dimensions.
Aggregate
if a single file can provide many rasters.- Since:
- 1.0
Defined in the
sis-storage
module - The function input is a position valid in the coverage domain. In the particular case of
-
-
Method Summary
All Methods Instance Methods Abstract Methods Modifier and Type Method Description GridGeometry
getGridGeometry()
Returns the valid extent of grid coordinates together with the conversion from those grid coordinates to real world coordinates.List<SampleDimension>
getSampleDimensions()
Returns the ranges of sample values together with the conversion from samples to real values.GridCoverage
read(GridGeometry domain, int... range)
Loads a subset of the grid coverage represented by this resource.-
Methods inherited from interface DataSet
getEnvelope
-
Methods inherited from interface Resource
addListener, getIdentifier, getMetadata, removeListener
-
-
-
-
Method Detail
-
getGridGeometry
GridGeometry getGridGeometry() throws DataStoreException
Returns the valid extent of grid coordinates together with the conversion from those grid coordinates to real world coordinates. A grid geometry contains the following information:- The minimum and maximum grid coordinates as integers (the Grid Extent). The minimum coordinates are typically (0,0, …, 0) but not necessarily.
- The minimum and maximum "real world" coordinates (the Envelope). Those coordinates are typically, but not necessarily, latitudes and longitudes or projected coordinates, together with altitudes and dates.
- A description of the datum and axes of above "real world" coordinates (the Coordinate Reference System).
- The conversion from grid coordinates to "real world" coordinates. This conversion is often, but not necessarily, a linear relationship. Axis order or direction may be changed by the conversion. For example row indices may be increasing toward down while latitude coordinates are increasing toward up.
- An estimation of grid resolution for each "real world" axis.
read(null).getGridGeometry()
. However the grid geometry returned by this method is allowed to be only approximate if computing accurate information would be prohibitively expensive, or if the grid geometry depends on the exact argument value given to theread(…)
method. At least, the number of dimensions should match.- Returns:
- extent of grid coordinates together with their mapping to "real world" coordinates.
- Throws:
DataStoreException
- if an error occurred while reading definitions from the underlying data store.- See Also:
GridCoverage.getGridGeometry()
-
getSampleDimensions
List<SampleDimension> getSampleDimensions() throws DataStoreException
Returns the ranges of sample values together with the conversion from samples to real values. Sample dimensions contain the following information:- The range of valid sample values, typically but not necessarily as positive integers.
- A transfer function for converting sample values to real values, for example measurements of a geophysics phenomenon. The transfer function is typically defined by a scale factor and an offset, but is not restricted to such linear equations.
- The units of measurement of "real world" values after their conversions from sample values.
- The sample values reserved for missing values.
The list returned by this method should be equal to the list returned by
read(null).getSampleDimensions()
. However the sample dimensions returned by this method is allowed to be only approximate if computing accurate information would be prohibitively expensive, or if the sample dimensions depend on thedomain
argument (area of interest) given to theread(…)
method. At least, the number of sample dimensions should match.- Returns:
- ranges of sample values together with their mapping to "real values".
- Throws:
DataStoreException
- if an error occurred while reading definitions from the underlying data store.- See Also:
GridCoverage.getSampleDimensions()
-
read
GridCoverage read(GridGeometry domain, int... range) throws DataStoreException
Loads a subset of the grid coverage represented by this resource. If a non-null grid geometry is specified, then this method will try to return a grid coverage matching the given grid geometry on a best-effort basis; the coverage actually returned may have a different resolution, cover a different area in a different CRS, etc. The general contract is that the returned coverage should not contain less data than a coverage matching exactly the given geometry.The returned coverage shall contain the exact set of sample dimensions specified by the
range
argument, in the specified order (the "best-effort basis" flexibility applies only to the grid geometry, not to the range). Allrange
values shall be between 0 inclusive andgetSampleDimensions().size()
exclusive, without duplicated values.While this method name suggests an immediate reading, some implementations may defer the actual reading at a later stage.
- Parameters:
domain
- desired grid extent and resolution, ornull
for reading the whole domain.range
- 0-based indices of sample dimensions to read, ornull
or an empty sequence for reading them all.- Returns:
- the grid coverage for the specified domain and range.
- Throws:
DataStoreException
- if an error occurred while reading the grid coverage data.
-
-


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{% extends "base.html" %} {% block title %}OffseasonMatchesGet{% endblock %} {% block content %}
Note that these matches aren't written into the database. Please paste matches into a CSV file and run the offseason CSV datafeed.


Projects
I have been working in the computer industry since 2001. In that time I have worked on a number of exciting projects across a broad spectrum of industries. I have catalogued some of those projects here due to the brevity of their existence.
Although I will only refer to the roles I participated in across these various endeavours, almost all of the projects listed here were only possible due to a team of highly talented people that I am consistently in awe of.
2014
Sittercity Mobile
Following the relaunch of Sittercity in November of 2013, work immediately began on the production of the new Sittercity mobile application for iOS and Android.
In addition to building out two native mobile applications that deliver the Sittercity experience to the two most popular mobile platforms, a new set of public APIs were required to support the mobile initiative.
I oversaw four technical teams building out the iOS and Android native applications, plus the design and implementation of the Sittercity Public API to support the applications. Finally the forth team worked on building out a new highly available and scalable operational platform to support the new API and other Sittercity applications.
Work is ongoing across the four projects to further enhance the application, features and infrastructure supporting the new Sittercity APIs and mobile applications. In the near future we hope to open up our APIs to allow third parties to integrate with Sittercity data.
There are four awesome discreet teams working to bring all of these products and services together. I am as always in awe of the skill and dedication of the Sittercity Engineering team.
Big Sky MMXIV
Big Sky MMXIV from Sam de Freyssinet on Vimeo.
In March of 2014, a group of friends and I headed out to Montana in search of fresh powder on Big Sky. Big Sky Resort is one of the largest ski areas in the USA, only surpassed in scale by Whistler. Additionally, the Lone Peak at Big Sky provides the greatest vertical drop available in the country.
Using a Go Pro Hero 3 Black Edition and an iPhone 5, footage from our escapades on the mountain was shot over six days. The footage was transcoded after each days boarding. Finally after returning to Chicago, this video was cut together in Final Cut Pro X.
This was my first time shooting and editing with the Go Pro 3. The quality of the HD footage is incredible.
Rape Victim Advocates, Chicago – One Billion Rising 2014 Video
RVA OBR 2014 Video from Sam de Freyssinet on Vimeo.
The Rape Victim Advocates charity in Chicago approached me to to help them produce a video to promote their upcoming involvement in the One Billion Rising campaign. RVA had already filmed their staff talking about empowering victims of sexual abuse to speak up and seek justice. The charity needed all of the interviews to be placed into a narrative and include footage of their previous years One Billion Rising event.
All of the footage seen in this video was filmed on mobile phones. It is amazing that we can now produce promotional material quickly and easily using the devices we carry in our pockets. Over the Christmas holiday period I sat with Siân and we cut the video together in Final Cut Pro X. The narrative was already agreed upon, so the work mainly involved editing, colour correction and trying to clean up the sound which unfortunately did give away the equipment used.
It was a fun project to be involved in and I was glad to help this charity that does incredible work daily to make the lives of victims of sexual abuse better.
2013
Sittercity 2.0
Sittercity launched a brand new experience at the end of 2013. To support the demanding new direction for the company, a completely redesigned platform was built from the ground up. Introducing new technologies across the entire stack, I was involved in numerous projects that supported the overall delivery of the new platform.
As the Vice President of Technology at Sittercity I am currently overseeing the second phase of development on our new platform. Although almost everything we do is top secret due to a fierce rivalry, I am enjoying every moment of working on this project with an incredibly talented team of engineers. Hopefully I will be able to share some more information about some of the incredible systems we have developed in the future, once we are convinced our competitors photocopiers have stopped running.
Sitterati
Sitterati is a new mobile product from Sittercity, America’s first and largest online sitter database. Sitterati provides a new and easy way for parents and sitters to manage and pay for child care on the go.
I am currently the Chief Technical Architect of Sitterati, responsible for design and delivery of all the technical aspects of the project. Additionally I manage a small team of very talented developers. This project has been one of the most challenging and rewarding I have worked on in recent years.
Sitterati was publicly launched in the United States in January 2013 for iPhone.
2012
Sport Relief FROST
Comic Relief had to support a large online fundraising community for the Sport Relief 2012 campaign. FROST is a system designed to provide online community fundraising, payment processing and online retail to support Sport Relief. However FROST was also built to provide Comic Relief with a fundraising platform for all of their future campaigns, as well as support for other charities.
I provided the System Architecture for FROST, responsible for designing and specifying the core architecture for the platform. This resulted in a large specification document and a presentation to the FROST development team. I consulted with the development team to provide advice on tooling, frameworks and processes.
Sport Relief 2012 was a huge success raising £67,977,824 for charity. A large portion of the money raised was managed within the FROST system.
2011
Potato Council Wonderfuel Nutritional Calculator
The Potato Council of England were launching a new campaign to promote British potatoes. They decided that rather than commissioning a traditional advertising campaign, they would instead build and distribute and free application. This application would educate the user to the nutritional value of potatoes compared with other foods. When a user discovered a new nutritional fact about potatoes, they can post it to their Facebook wall.
I was approached to provide an answer to the brief supplied by the Potato Council. I submitted a design proposal for an iPad application based on the initial design ideas produced by the Potato Council. The iOS application was built and delivered over two weeks. I provided all the final user interface design and development services. Finally, I was also responsible for the successful submission of the application to Apple for review.
Sittercity
Sittercity is America’s first and largest online sitter database, providing parents with a vast selection of potential sitters in their city. Also helping sitters and nannies find work in their neighbourhoods.
I was the senior software developer responsible for implementing a new authentication service to the platform. The new system used the OAuth 1 authentication protocol, providing authentication services to the entire Sittercity platform. It also provided support for handling remote authentications from other sites and services.
Whilst working on the core Sittercity product, I also was involved in rationalising the registration flows for sitters and parents and implementing a new promotional framework for new registrations.
Kohana
Kohana is an open source elegant PHP5 HMVC framework that provides components for building web applications. I have been one of the core developers of Kohana since 2008, mostly concentrating on the HTTP request/response architecture and caching.
In 2011 a new major milestone release of the framework was nearing completion. As part of the release we wanted to refresh the Kohana web site. Working with designer Inayaili de León, we collaborated on the new Kohana web site design and build. It was deployed with the release of Kohana Framework 3.2 in the summer of 2011.
OU Annotate
The Open University wanted to provide their students with a new tool that would allow users create annotations on web sites. The annotations created by a user could be either private, or shared with other users of the system, creating a community of users. The tool had to be implemented in javascript to ensure that no special browser plugins were required, and the tool would support the widest possible combinations of browsers.
I was a Technical Team Leader on the OU Annotate development project, initially managing a team of four developers. I provided the high level system architecture for the underlying API supporting the javascript client. Additionally I provided a design specification describing how the javascript client would manipulate the DOM to provide the visual feedback required by the project.
The OU Annotate tool is now available to all students of The Open University. There is a screencast demonstrating the tool in action created by the Product Owner for Open University, Jenny Gray.
2010
BBC iPlayer v3
In 2009 the BBC launched a new development project to migrate the existing BBC iPlayer v2 web site to the new BBC presentation framework. The new BBC presentation framework was a based on Zend Framework version 1, with BBC specific custom extensions. For over a year a BBC internal team developed the new iPlayer v3 service.
In the spring of 2010 performance testing of the new system prompted a new effort to improve the overall performance of the system. I joined the project to help integrate the BBC iPlayer v3 presentation system with a Varnish caching layer. Working with the BBC team we identified the dynamic and static areas of the iPlayer interfaces and devised a caching strategy for Varnish. I was then responsible for implementing the new hybrid presentation layer, integrating the BBC presentation layer with Varnish and javascript.
The BBC iPlayer v3 product launched as a beta in June 2010 and fully replaced the v2 system in September. The product has exceeded all performance benchmarks required by BBC management. As of January 2013, the iPlayer v3 system is still in production.
On a personal note; The BBC iPlayer v3 project was one of the most enjoyable projects I have been involved with. I believe I share the same feeling as the entire team working on this project, that it is one of the projects I am most proud of to this day.
Cable&Wireless Worldwide MyCW
In 2009 Cable&Wireless Worldwide (now part of Vodafone) required a new portal for their enterprise customers. The system would provide a single point of presence for Cable&Wireless Worldwide B2B customers to manage their accounts, report faults with their infrastructure and track the progress of any trouble tickets.
I joined the team in August 2009 to provide the presentation layer integration with a custom built service layer. I designed and implemented a new Service-Relational-Mapping framework (now Open Sourced by Inviqa) to represent the service layer API entities as first class objects in the presentation layer.
In 2010 I became the Technical Team Lead on the MyCW Customer Portal project responsible for all day to day development. During this time I lead a project to improve the overall performance of the entire system by introducing optimisations and Varnish caching across the various service tiers.
The MyCW Customer portal supported a large portion of Cable&Wireless Worldwide’s B2B customers up until their acquisition by Vodafone in 2012.
2009
Mukuru.com
In 2008 Mukuru.com decided they needed to replace their existing PHP4 based web site with a new money transfer platform. This would require a complete re-write of the entire system, which had been continually developed for over four years at that point.
I provided a new system architecture for the money transfer platform that would enable Mukuru.com to support their existing customers sending money from the UK to Zimbabwe and South Africa. However, the system architecture also was designed to support money transfers between any two countries globally.
I was responsible for the overall implementation of the new money transfer platform. This included providing the development team with design direction, and providing scalable ways to deal with a seemingly endless list of payment processing companies and banks.
At the end of 2009 the new Mukuru.com system launched. Within six months Mukuru.com had launched a global money transfer operation supported by the new architecture.
2008
Contact Packaging Online Store
Contact Packaging wanted to expand their existing operations from an antiquated order system that was not online. This required a new online store to be created that would provide a customer experience as well as a back-office administration tool.
I joined the project to provide the system architecture and design for the store and administration system. The system I designed was a custom build based on the specifications supplied.
This was the last project I ever worked on that I did not prescribe using an existing software framework. I am still proud of this project as it was one of my first truly successful systems built from the ground up. But if I were working on this project today, I would have turned to a solution like Magento to provide the backbone of the system. If only Magento was stable when this project kicked off.
Although I had worked on a number of system architectures up until this point, this was the first and last that I designed every single component for without using a PHP framework. For that reason, it will always be one I remind myself of whenever I set off on a new project.


My name is Joji Gorden, and I hail from Berkeley, California. I have an endless fascination with languages, and a BA in linguistics from the University of California, Los Angeles to show for it. It is indeed why I became interested in programming in the first place. For me, the appeal of language is the endless possibility that it presents. The end goal is always communication, be it with another person, computer, what have you. There is never one answer, only many different paths to a common goal. What path to take and what shape it takes is up to the creator, and oh boy do I love being a creator.


Rivaldo: "Gallardo is ready to become Barça's manager"
The former Barça man believes Gallardo is good enough to coach anywhere in Europe
by Sport ENOver the last few months, Marcelo Gallardo has been strongly linked with a move to FC Barcelona. The current River Plate coach is on the club's shortlist and Rivaldo believes the Argentinian is ready to manage an elite side in Europe.
"Of course I believe he could coach Barcelona. He's preparing for that. His work at River Plate has been fantastic. He won the Libertadores last year. He's at the point where he's ready to go to Europe and manage a top side like Barcelona," Rivaldo told Betfair.
River Plate take on Flamengo in Lima, Peru and another victory could establish the Argentine side as one of the greatest ever teams. "If River win back-to-back Libertadores, everyone on the planet will be talking about them."


{% comment %} Licensed to Cloudera, Inc. under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. Cloudera, Inc. licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. {% endcomment %}
Note that to use double click delegation on a container with links in it, if you don't want the links to fire on single click, you must add the css class "jframe_ignore" to them and configure the double click delegator to point to the desired link. This is especially useful with HtmlTables with selectable rows if you don't want a single click on the row to load another page, even if the user clicks on a link.


libpwquality-1.4.2
Introduction to libpwquality
The libpwquality package provides
common functions for password quality checking and also scoring
them based on their apparent randomness. The library also provides
a function for generating random passwords with good
pronounceability.
This package is known to build and work properly using an LFS-9.1
platform.
Package Information
libpwquality Dependencies
Required
CrackLib-2.9.7
Recommended
Linux-PAM-1.3.1
Optional
Python-2.7.17
User Notes: http://wiki.linuxfromscratch.org/blfs/wiki/libpwquality
Installation of libpwquality
Install libpwquality by running
the following commands:
./configure --prefix=/usr \
--disable-static \
--with-securedir=/lib/security \
--with-python-binary=python3 &&
make
This package does not come with a test suite.
Now, as the root
user:
make install
Command Explanations
--with-python-binary=python3
: This
parameter gives the location of the Python binary. The default is python
, and requires Python-2.7.17.
Configuring libpwquality
libpwquality is intended to be a
functional replacement for the pam_cracklib.so
module with additional options.
To replace the pam_cracklib.so
module
with the pam_pwquality.so
module,
execute the following commands as the root
user:
mv /etc/pam.d/system-password{,.orig} &&
cat > /etc/pam.d/system-password << "EOF"
# Begin /etc/pam.d/system-password
# check new passwords for strength (man pam_pwquality)
password required pam_pwquality.so authtok_type=UNIX retry=1 difok=1 \
minlen=8 dcredit=0 ucredit=0 \
lcredit=0 ocredit=0 minclass=1 \
maxrepeat=0 maxsequence=0 \
maxclassrepeat=0 geoscheck=0 \
dictcheck=1 usercheck=1 \
enforcing=1 badwords="" \
dictpath=/lib/cracklib/pw_dict
# use sha512 hash for encryption, use shadow, and use the
# authentication token (chosen password) set by pam_pwquality
# above (or any previous modules)
password required pam_unix.so sha512 shadow use_authtok
# End /etc/pam.d/system-password
EOF
Contents
Installed Programs:
pwscore and pwmake
Installed Libraries:
pam_pwquality.so and
libpwquality.so
Installed Directories:
None
Short Descriptions
|
pwmake
|
is a simple configurable tool for generating random and
relatively easily pronounceable passwords.
|
|
pwscore
|
is a simple tool for checking quality of a password.
|
|
libpwquality.so
|
contains API functions for checking the password quality.
|
|
pam_pwquality.so
|
is a Linux PAM module
used to perform password quality checking.
|
Last updated on 2015-09-25 08:48:24 -0500


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World's Cheapest EV Is Russian and It Launches in 2020
by Andrei NedeleaWhile we wouldn’t describe the global electric vehicle market as booming (yet), it is growing steadily and there is demand for vehicles of all shapes and sizes, and of course this includes minute city cars too.
And since electric vehicles are still quite expensive, many people’s chances to own their first EV are limited by their high cost. That’s why pint-sized runabouts like this Russian-built Zetta might appeal to many people who can’t afford a bigger set of wheels.
The plan is to have it on the market by 2020 with a starting price equivalent to $7,000. It sounds like a fair price for a vehicle with four seats, 46 nominal horsepower (or 97 peak horsepower), a claimed range of around 200 km (130 miles) and a top speed of 120 km/h (75 mph).
In fact, that top speed seems quite high for a vehicle that looks small and not very safe; it safety credentials were not detailed in the official press release issued by TASS, the Russian state-run news agency.
Zetta isn’t the only such vehicle on the market, but its party piece is its price which is lower than that of rivals, although not by much, since the more convincing Renault City K-ZE (only available in China for the moment) costs just under $8,000. What will set Zetta apart, according to its makers, are the multiple configurations it will be available in, which also include a van-like body or a mini pickup.
The official press release also points out that the vehicle will be made out of “99 percent local components.“ The only non-Russian parts of the Zetta will be the battery cells which are imported from China.
The plan is to reportedly sell two thirds of the entire production run outside Russia, although the exact number of vehicles they plan to make per year was not mentioned. What was mentioned was that the Zetta will be produced in Tolyatti (also home to AvtoVAZ). 🏁


COMPUTER SCIENCE BSC (HONS)
COMPUTER SCIENCE WITH MANAGEMENT BSC (HONS)
WELCOME TO KINGS
Welcome to module selection for third year
students doing Computer Science Bcs or Computer Science with Management Bcs. The purpose of this
webpage is for you to select which modules you wish to do for your final year. Check out the drop-down
buttons to view and explore the options available to you. If you are doing Computer Science Bcs you
will have to choose three optional modules for each term, three for term one, and another three for
term two. In addition to the optional modules, all third year students must do the Individual Project.
This module is for both terms, and is worth 30 credits. If you are doing Computer Science with
Management Bcs you have two compulsory modules. During first term you will have to do Business Strategy.
During second term you will do Human Resource Management. Because of the compulsory modules, management
students will choose two optional modules for each term instead of three.
The modules all belong under one of these areas; Performance Critical Computing, Internet Systems, Software
Engineering, and Artificial Intelligence. If you wish to delelop expertise in one of these areas, we
recommend that you choose the most relevant modules. When you select a module to explore in the drop-down
box, you will be informed which of these areas the module in recommended for. If you are not interested in
focusing on one area, you can choose your modules from different areas.


This page will submit a random number to the task {{ task.pk }} every 1 to 10 seconds.
Requests:
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A channel to discuss trading. For useful links and more info click the pinned messages to the right.
100 messages
Before 05-Dec-19 12:00 AM
Hollowman900012-Dec-18 10:30 PM
I don’t doubt it will be
2
FishyGuts13-Dec-18 01:00 AM
You scripted the removal of the rest of the rewards? Or do you check daily and remove as they unlock? Is there a way to merget that WIF to a different wallet ? ( As if you didn't consider all this before).
Vertigo13-Dec-18 01:05 AM
Yawn bought a bit more
Is like crack or meth
You buy and you get some awkward number , buy some more to make it a round number. You get some rewards it makes it awkward again.
And repeat
Crabby Paddy13-Dec-18 02:08 AM
Will sapling mean Komodo has double the transaction per second
So we achieve 200m?
grewalsatinder13-Dec-18 02:19 AM
sapling upgrade includes block size increase, yes. That means a single blockchain transaction amount to double than before.
scaling solution is NOT about single chain, but multiple blockchains working as a group, a cluster, like a 1 single organism??
the way scaling solution works, it is already proven to show over 45,000+ transactions per second.
that demonstration showed how the scaling solution works. It doesn't actually need another demonstration, but it is good for marketing to show such demonstration, as kinda people believe what they see. I don't have update on scaling. Just join #dev-scalability to ask and know more on it.
there is factually no limit to the limit of transactions per second as per the solution provided by Komodo.
Tips on Getting Through a Bear Market by @jimmysong #cryptocurrency #bitcoin https://t.co/O0Cosd5mYn
Hermes13-Dec-18 07:37 AM
What is funny is that everything happened when this right wing...bad people started winning in different countries...the US - Brazil - Italy- Hungary - Poland -French yellow vest protests...it goes on and on...as the fight with China for technology and patent stealing for Artificial intelligence microchips is brewing.....suddenly they stopped the easy money from the Federal reserve and the stock market crashed....and crypto as well....all is just a coincidence....I bet that if Brexit is done as the people wanted it to be...it would be the last shoe to drop...for the Central Banksters....(edited)
Hermes13-Dec-18 07:44 AM
Technology is the only fight left...and the patent stealing is not enough to make the artificial intelligence microchips...only one company has the machine that China is looking to copy or steal...to start making their new copies of these microchips...but they haven't been able to get them...because it's of national security so China can't get them till this day ...and that's where we are in the asymmetrical war 5d chess game that is happening.(edited)
wolfgang13-Dec-18 08:14 AM
so what will the sapling upgrade mean for the price
CryptoNinjaa13-Dec-18 08:45 AM
Tek13-Dec-18 08:54 AM
dunno but I bought yesterday and I am happy today
siu - Chainmakers13-Dec-18 09:17 AM
@Hermes easy money stopped back in 2015.
Rates has been going up since then too.
I dont think its a "fed conspiracy" againa the right wingers
passcombo.com 🏴☠🏴13-Dec-18 09:27 AM
@wolfgang sapling is price growth potential for Arrr - since it allows more easy maintenance of wallets for exchanges - more easy adoption - but it's only potential, depends how well it will be used to get new listings
also user friendly so bigger potential for growth (about 5x faster transactions - if I'm not mistaken -, my avg z-tx was about 1 in before, so I expect it to be about 10s after sapling)
jl777c13-Dec-18 09:35 AM
50x faster
1
1
Tek13-Dec-18 12:25 PM
low volume, but atleast its not tankening
any plans to get kmd listed more places?
snowdamn13-Dec-18 12:54 PM
ok, big money doesn't want to pay more than $3400 it seems
how long can they hold the line?
not long me thinks
i believe big money will give in once $3600 holds
Cryptoon13-Dec-18 01:02 PM
@Tek not many places left... poloniex, but who cares about them
bitfinex maybe
coinbase requires a company behind the crypto, which is hard when you are decentralized
siu - Chainmakers13-Dec-18 01:04 PM
coinbase requires a company behind the crypto, which is hard when you are decentralized
is this written in stone? any link you got with this statement?
Apply to list your asset on Coinbase, the safest and easiest-to-use platform to buy, sell, store, and use cryptocurrency.
but it was a tweet that said it clearly
searching
Cryptoon13-Dec-18 02:33 PM
Today we’re announcing a new process that will allow us to rapidly list most digital assets that are compliant with local law, by satisfying listing requests in a jurisdiction-by-jurisdiction manner. In practice, this means some new assets listed on our platform may only be available to customers in select jurisdictions for a period of time.
The finals have started! The communities of @Aion_Network @KomodoPlatform @H_O_LO and @wavesplatform will decide which is best! Vote and RT for your favorite coin, so they can win the $525 native ad and the best publicity on https://t.co/I04Pzhn5Fi !
$AION $KMD $HOT $...
Apply to list your asset on Coinbase, the safest and easiest-to-use platform to buy, sell, store, and use cryptocurrency.
If information is available, Coinbase will apply "know your client" standards to publicly visible founders or leaders.
Doesn't say about "if not"
snowdamn13-Dec-18 03:41 PM
Cryptoon13-Dec-18 03:45 PM
knock knock knocking on 3600's door
snowdamn13-Dec-18 03:48 PM
dam's about to break!
BlackJesus13-Dec-18 04:32 PM
I told you
1-1.5k retrace
This bear will be another year
3k came much sooner than expected for me
So I readjusting my 3k call I made in june
Deleted User13-Dec-18 04:32 PM
Nother year to get my kmd
BlackJesus13-Dec-18 04:33 PM
If you aren't buying this whole next year. You're slow
Cryptoon13-Dec-18 04:43 PM
chart still looks uneventful
LocoMB13-Dec-18 04:53 PM
WAVES doing a really smooth liftoff ! seems they have some really nice things cooking there!
ComputerGenie 👴👴👴13-Dec-18 05:11 PM
If you aren't buying this whole next year. You're slow
Wanna lend me some $ so I can speed up?
snowdamn13-Dec-18 05:33 PM
next push will be the one...
 I'm going to make the call that the 2020 bull will make the 2017 bull look like child's play.
I did it's w/e though. Last time I'll ever do OTC
ComputerGenie 👴👴👴13-Dec-18 05:40 PM
is still making bank mining and isn't even running 1/10th of what he has
I'll be so glad when I've got sapling pool where I want it and I can run all of my equipment, my mining wallet is looking anemic
jspook1613-Dec-18 07:12 PM
Waves is getting it..
Cryptoon13-Dec-18 07:12 PM
Why is waves pumping?
Mobile wallet release?
jspook1613-Dec-18 07:13 PM
Don't know
jl777c13-Dec-18 07:24 PM
dentacoin!
Markus13-Dec-18 07:24 PM
be patient, our moon will appear one day aswell
jl777c13-Dec-18 07:24 PM
make sure to go to the dentist
1
Vertigo13-Dec-18 07:38 PM
So is BTC slower than before now?
I just sent a little bit of BTC to play around digitalprice
ComputerGenie 👴👴👴13-Dec-18 07:38 PM
is BTC slower than before now?
Is that even possible?(edited)
Vertigo13-Dec-18 07:39 PM
It's been 30 minutes only 1 confirmation
ComputerGenie 👴👴👴13-Dec-18 07:39 PM
only 30 mins? you're doing good then
Vertigo13-Dec-18 07:40 PM
How are we supposed to replace banking system like this... Lol
Lumbi13-Dec-18 07:40 PM
XMR droppin' off a cliff
1
ComputerGenie 👴👴👴13-Dec-18 07:41 PM
How are we supposed to replace banking system like this
By abandoning BTC and adopting a viable currency
1
They tell me that "Komodo" thing is pretty good
Vertigo13-Dec-18 07:43 PM
I know but BTC is our so called flagship right now
ComputerGenie 👴👴👴13-Dec-18 07:44 PM
Well, I don't live in the 1600s, so "flagships" mean nothing to me
Do you also still walk everywhere, always?
Unless you're a patent attorney, "first" almost never = "best"
Vertigo13-Dec-18 07:46 PM
Still 1 confirmation...
42 minutes
Alright13-Dec-18 07:49 PM
@Vertigo it's normal, happens at least a few times a day
it's whenever you use BTC, slow blocks
1
1
KomodoWorld13-Dec-18 07:50 PM
Waves has been doing a good development job but this usually means absolutely nothing, it's strange for once seeing the crypto market valuing it. It gives hope that also Komodo and others can decouple from Btc
It's not just you – blocks have been coming slower. Haven't been this slow since Bitcoin's greatest ever deleveraging ($34 -> $2) in 2011
https://t.co/hq2OALEsFN
Lumbi13-Dec-18 08:14 PM
$10 LTC
Vertigo13-Dec-18 08:23 PM
Looks like everything about to take a dump again
FishyGuts13-Dec-18 08:31 PM
XMR falling off a cliff becuase Zooko silently shredded them this week.
All I saw as a response was "XMR is good enough"..
It's down over 90% from when I remember looking at it last year 400+
@Vertigo you just had bad luck, usually if your tx has 1 conf. then it's good, I guess your tx was included in block 553679, and somehow it took 50 minutes to find block 553680


I've had all of these ideas of things we should buy and things we should do once we arrive in Scotland. They've been floating around in my head and I didn't want to forget any, so I decided to write them all down in another list. I'll be adding more things as I think of them.
{{ image featurePhoto }}I have thoughts like, "I will only have to fill up this gas tank 8 more times before we leave."
Hit up the ATM
Find a store
Fuel for Whisperlite and Penny Alcohol Stove
Lube for chains, some sort of rag
Sunscreen
Bug Spray
Batteries
Fruits
Vegetables
Meats
Butter
Cheese
Oats: for oatmeal, granola bars, & breads
Peanut Butter: for sandwiches & granola bars
Dried fruit & nuts: for snacks & granola bars
Chocolate Chips: for cookies, brownies, & granola bars
Spices: salt, pepper, garlic, cinnamon, etc.
Olive Oil: for basic cooking
Honey: for breakfasts, granola bars, etc.
Sugar: brown sugar for granola bars & baking
Flour: for basic baking & cooking
Leavening: yeast? Baking Soda or Powder?
Potatoes: soups, mashed, baked.
Onions: everything
Bouillon Cubes: soups, pot pie
Soy Sauce: stir fry, noodle dishes
Rice: everything
Chinese Egg or Rice Noodles
UHT Milk, like in France? Powdered milk?


|
tan 0.0.1
|
Public Member Functions | |
| void | add_dependency (T depended, T dependent) |
dependent depends on depended | |
| vector< T > | topological_sort () const |
| Sort topologically so for no element is dependent on its succeeding element(s). | |
| int | num_dependent (T depended) const |
Number of nodes that depends on depended . | |
| int | num_depended (T dependent) const |
Number of nodes that dependent depends on. | |
| void | clear () |
Definition at line 10 of file dependency_graph.h.
|
inline |
dependent
depends on depended
Definition at line 15 of file dependency_graph.h.
|
inline |
Definition at line 98 of file dependency_graph.h.
|
inline |
Number of nodes that dependent
depends on.
Definition at line 89 of file dependency_graph.h.
|
inline |
Number of nodes that depends on depended
.
Definition at line 77 of file dependency_graph.h.
|
inline |
Sort topologically so for no element is dependent on its succeeding element(s).
Definition at line 26 of file dependency_graph.h.


|
Pointed top headstone on a plinth. 3 kerbstones and 2 posts. Square flower holder to foot end of grave.
IN LOVING MEMORY OF MARIA CLANFIELD WHO PASSED PEACEFULLY AWAY 29 APRIL 1938, AGED 74 YEARS. "AT REST." ALSO OF HER BELOVED HUSBAND JESSE CLANFIELD WHO DIED 22 DECEMBER 1941 AGED 78 YEARS. "RE-UNITED" ALSO OF GEORGE WILLIAM SON OF THE ABOVE KILLED IN ACTION IN FRANCE 2 JUNE 1915, AGED 23 YEARS. "IN THE MIDST OF LIFE, WE ARE IN DEATH."
Burial Register: B744 B787
|
|


just started, no connections
after a few connections
a few more connections - threads are hung in node 30
finally get a few SIGPIPE's, which releases some threads


Welcome to the Resource Manager application. Here is your top 5 resources below with the Priority assigned.


To assign positional parameters, use 'set -- first second ..' (or use [ ] to compare).
if [ -z "$1" ]
then
$1="help"
fi
or
if $1="help"
then
echo "Usage: $0 filename"
fi
if [ -z "$1" ]
then
set -- "help"
fi
or
if [ $1 = "help" ]
then
echo "Usage: $0 filename"
fi
You have a command on the form $2=value
.
If the goal is to assign a new value to the positional parameters, use the set
builtin: set -- one two ..
will cause $1
to be "one" and $2
to be "two".
If you instead want to compare the value, use [ ]
and add spaces: [ "$1" = "foo" ]
None


PDFjet Java Examples
Please run the build-java.cmd or build-java.sh scripts to generate all the PDF files:
- Example_01.java Example_01.pdf
Using Lines, Boxes and Stars.
- Example_02.java Example_02.pdf
Using Paths.
- Example_03.java Example_03.pdf
Embedding PNG, JPG and BMP Images.
- Example_04.java Example_04.pdf
Using Chinese, Japanese and Korean fonts.
- Example_05.java Example_05.pdf
Text kerning and drawing rotated text.
- Example_06.java Example_06.pdf
Using embedded fonts with code pages.
- Example_07.java Example_07.pdf
Using embedded fonts with Unicode.
- Example_08.java Example_08.pdf
Using the Table component.
- Example_09.java Example_09.pdf
Using the Chart component.
- Example_10.java Example_10.pdf
Using the TextColumn component.
- Example_11.java Example_11.pdf
Using linear bacodes.
- Example_12.java Example_12.pdf
Using PDF417 2D barcodes.
- Example_13.java Example_13.pdf
Drawing three tables side by side.
- Example_14.java Example_14.pdf
Using the Table's SetColSpan method.
- Example_15.java Example_15.pdf
Using the CompositeTextLine together with the Table class.
- Example_16.java Example_16.pdf
Using the TextBox component.
- Example_17.java Example_17.pdf
Test case for PNG images.
- Example_18.java Example_18.pdf
Drawing circular segments.
- Example_19.java Example_19.pdf
Filling in an existing PDF form.
- Example_20.java Example_20.pdf
Reading a logo in PDF format and drawing it on a new PDF document.
- Example_21.java Example_21.pdf
Using QR code 2D barcodes.
- Example_22.java Example_22.pdf
Adding "Destinations" and "Go To" actions.
- Example_23.java Example_23.pdf
Using the SetColSpan and WrapAroundCellText Table methods.
- Example_24.java Example_24.pdf
Using raw PDF images to reduce memory consumption.
- Example_25.java Example_25.pdf
Using the CompositeTextLine component to display chemical formulas.
- Example_26.java Example_26.pdf
Using the CheckBox component.
- Example_27.java Example_27.pdf
Using Thai and Hebrew.
- Example_28.java Example_28.pdf
Using the DroidSansFallback.ttf font to display icons.
- Example_29.java Example_29.pdf
Another TextBox example.
- Example_30.java Example_30.pdf
Using PDF layers.
- Example_31.java Example_31.pdf
Using Tamil and Hindi.
- Example_32.java Example_32.pdf
Using low level graphics primitives. Use with caution only when high level component is not available!
- Example_33.java Example_33.pdf
Test case for JPG images created by Photoshop.
- Example_34.java Example_34.pdf
Adding points with URI Action to Table cells.
- Example_35.java Example_35.pdf
Shows how to use the Chart class to display line charts.
- Example_36.java Example_36.pdf
Adding pages "out of order" to PDF document.
- Example_37.java Example_37.pdf
Test case for indexed PNG images with Alpha channel.
- Example_38.java Example_38.pdf
Example that showscases the flexibility of the Table class.
- Example_39.java Example_39.pdf
Creating a chart with horizontal bars.
- Example_40.java Example_40.pdf
Creating a chart with vertical bars.
- Example_41.java Example_41.pdf
How to use the Text class to create blocks of text.
- Example_42.java Example_42.pdf
Using the Form and Field classes to create forms.
- Example_43.java Example_43.pdf
How to find the bottom right coordinate of text block created by the Text class.
- Example_44.java Example_44.pdf
How to use the method addChineseParagraph in the TextColumn class.
- Example_45.java Example_45.pdf
Creating PDF/UA compliant document.
- Example_46.java Example_46.pdf
Example showing how to use the Text class.
- Example_47.java Example_47.pdf
Example showing how to use the TextFrame class.
- Example_48.java Example_48.pdf
Example showing how to use bookmarks.
- Example_49.java Example_49.pdf
Example showing how to use the TextColumn class.
- Example_50.java Example_50.pdf
This examples shows how you can open existing PDF and write on top of it.


Hello there...What's Your Name?
OK
press
Enter
Hello {{enquiry_fname}} ,What's your middle name?
OK
press
Enter
And to complete the Fullname, Your Last name is ?

OK
"The most comfortable place in your life is Home"
OK
press
Enter
The pathway to educational excellence lies within each school.
What's your school name?
OK
press
Enter
How much time do You spend in school?
OK
press
Enter
In which class you study?
OK
press
Enter
have any email address to share?
OK
press
Enter
Whats's your mobile number?
OK
press
Enter
One of the greatest titles in the world is parent, and one of the biggest blessings in the world is to have parents to call mom and dad.
OK
press
Enter
Your parents work hard to fulfill the dreams of their children
OK
press
Enter
Enter your parent's office address.
OK
press
Enter
Enter your parent's mobile number.
OK
press
Enter
Enter your parent's email Id.
OK
press
Enter
Submit :)


Across: 1. ET injured for the making of sci-fi 24 (6 2 3 4) 9. Virginia serves in clouds of steam! (7) 10. Graduates stand around edge of instrument (7) 11. Lean daughter in Irish 24 is his (4) 12. At no time repeat this again in 24 title (5) 13. One group involved in 24-making (4) 16. Note I misread rule and produced flop! (7) 17. Tales of Hoffman, maybe, in cross-dressing 24 (7) 18. Unfashionable place in sci-fi 24 (7) 21. Stillness may be ovine or angry in 24s (7) 23. Simple addition in '60's 24 (4) 24. Initially made one version in English, to be shown at Odeon perhaps (5) 25. Fiendish assistant in 24s is held in rigor mortis (4) 28.  Do its members produce paintings on wood? (3 4) 30. 24 made possible by bet on beaver hunt? (4 3 3 5) Down: 1. Is sequel to first Bond 24 set on the Thames? (5 2 2 6) 2. Quiet, constant one in sun-hat makes 24 (7) 3. Tour around in flight (4) 4. Part of 24 about ex-pupil may cause it to be banned! (7) 5. Eastern representative in trial causes storm (7) 6. 24 lawman cuts up pear (4) 7. Animals are found by eagles circling road (7) 8. Old 24 about one vehicle which is difficult to drive? (4 3 8) 14. Supermarket symphony? (5) 15. Hello, Ms Parton will produce a show-stopper! (5) 19. Try-out takes place between the wickets at Lords?.... (4 3) 20. ....Dead beat at Twickers, maybe? (4-3) 21. Nips back to a church for 24 sailor's health food (7) 22. Cook's man is attached to the French (7) 26. Shilling gets newcomer in to see old 24 (4) 27. End of 24 ticket kept for possible refund? (4)


[% page.title="Mailing Lists" %]
Some useful mailing lists if you want to get involved:
The primary development list for perl5
The official forum for the development of perl is the perl5-porters mailing list, mentioned above, and its bugtracker at GitHub. All participants in discussion there are expected to adhere to a standard of conduct.
Civility is simple: stick to the facts while avoiding demeaning remarks and sarcasm. It is not enough to be factual. You must also be civil. Responding in kind to incivility is not acceptable.
Failure to be civil and failure to heed the moderators will be answered by removal from the list. For more specifics, consult the file pod/perlpolicy.pod in the perl5 git repository.
Receive an email every time a change is committed to perl5


| PostgreSQL 9.0.10 Documentation | ||||
|---|---|---|---|---|
| Prev | Up | Chapter 25. High Availability, Load Balancing, and Replication | Next |
Shared disk failover avoids synchronization overhead by having only one copy of the database. It uses a single disk array that is shared by multiple servers. If the main database server fails, the standby server is able to mount and start the database as though it were recovering from a database crash. This allows rapid failover with no data loss.
Shared hardware functionality is common in network storage devices. Using a network file system is also possible, though care must be taken that the file system has full POSIX behavior (see Section 17.2.1). One significant limitation of this method is that if the shared disk array fails or becomes corrupt, the primary and standby servers are both nonfunctional. Another issue is that the standby server should never access the shared storage while the primary server is running.
A modified version of shared hardware functionality is file system replication, where all changes to a file system are mirrored to a file system residing on another computer. The only restriction is that the mirroring must be done in a way that ensures the standby server has a consistent copy of the file system — specifically, writes to the standby must be done in the same order as those on the master. DRBD is a popular file system replication solution for Linux.
Warm and hot standby servers can be kept current by reading a stream of write-ahead log (WAL) records. If the main server fails, the standby contains almost all of the data of the main server, and can be quickly made the new master database server. This is asynchronous and can only be done for the entire database server.
A PITR standby server can be implemented using file-based log shipping (Section 25.2) or streaming replication (see Section 25.2.5), or a combination of both. For information on hot standby, see Section 25.5.
A master-standby replication setup sends all data modification queries to the master server. The master server asynchronously sends data changes to the standby server. The standby can answer read-only queries while the master server is running. The standby server is ideal for data warehouse queries.
Slony-I is an example of this type of replication, with per-table granularity, and support for multiple standby servers. Because it updates the standby server asynchronously (in batches), there is possible data loss during fail over.
With statement-based replication middleware, a program intercepts every SQL query and sends it to one or all servers. Each server operates independently. Read-write queries are sent to all servers, while read-only queries can be sent to just one server, allowing the read workload to be distributed.
If queries are simply broadcast unmodified, functions like
random()
, CURRENT_TIMESTAMP
, and
sequences can have different values on different servers.
This is because each server operates independently, and because
SQL queries are broadcast (and not actual modified rows). If
this is unacceptable, either the middleware or the application
must query such values from a single server and then use those
values in write queries. Another option is to use this replication
option with a traditional master-standby setup, i.e. data modification
queries are sent only to the master and are propagated to the
standby servers via master-standby replication, not by the replication
middleware. Care must also be taken that all
transactions either commit or abort on all servers, perhaps
using two-phase commit (PREPARE TRANSACTION
and COMMIT PREPARED.
Pgpool-II and Sequoia are examples of
this type of replication.
For servers that are not regularly connected, like laptops or remote servers, keeping data consistent among servers is a challenge. Using asynchronous multimaster replication, each server works independently, and periodically communicates with the other servers to identify conflicting transactions. The conflicts can be resolved by users or conflict resolution rules. Bucardo is an example of this type of replication.
In synchronous multimaster replication, each server can accept
write requests, and modified data is transmitted from the
original server to every other server before each transaction
commits. Heavy write activity can cause excessive locking,
leading to poor performance. In fact, write performance is
often worse than that of a single server. Read requests can
be sent to any server. Some implementations use shared disk
to reduce the communication overhead. Synchronous multimaster
replication is best for mostly read workloads, though its big
advantage is that any server can accept write requests —
there is no need to partition workloads between master and
standby servers, and because the data changes are sent from one
server to another, there is no problem with non-deterministic
functions like random()
.
PostgreSQL does not offer this type of replication, though PostgreSQL two-phase commit (PREPARE TRANSACTION and COMMIT PREPARED) can be used to implement this in application code or middleware.
Because PostgreSQL is open source and easily extended, a number of companies have taken PostgreSQL and created commercial closed-source solutions with unique failover, replication, and load balancing capabilities.
Table 25-1 summarizes the capabilities of the various solutions listed above.
Table 25-1. High Availability, Load Balancing, and Replication Feature Matrix
| Feature | Shared Disk Failover | File System Replication | Hot/Warm Standby Using PITR | Trigger-Based Master-Standby Replication | Statement-Based Replication Middleware | Asynchronous Multimaster Replication | Synchronous Multimaster Replication |
|---|---|---|---|---|---|---|---|
| Most Common Implementation | NAS | DRBD | PITR | Slony | pgpool-II | Bucardo | |
| Communication Method | shared disk | disk blocks | WAL | table rows | SQL | table rows | table rows and row locks |
| No special hardware required | • | • | • | • | • | • | |
| Allows multiple master servers | • | • | • | ||||
| No master server overhead | • | • | • | ||||
| No waiting for multiple servers | • | • | • | • | |||
| Master failure will never lose data | • | • | • | • | |||
| Standby accept read-only queries | Hot only | • | • | • | • | ||
| Per-table granularity | • | • | • | ||||
| No conflict resolution necessary | • | • | • | • | • |
There are a few solutions that do not fit into the above categories:
Data partitioning splits tables into data sets. Each set can be modified by only one server. For example, data can be partitioned by offices, e.g., London and Paris, with a server in each office. If queries combining London and Paris data are necessary, an application can query both servers, or master/standby replication can be used to keep a read-only copy of the other office's data on each server.
Many of the above solutions allow multiple servers to handle multiple queries, but none allow a single query to use multiple servers to complete faster. This solution allows multiple servers to work concurrently on a single query. It is usually accomplished by splitting the data among servers and having each server execute its part of the query and return results to a central server where they are combined and returned to the user. Pgpool-II has this capability. Also, this can be implemented using the PL/Proxy tool set.


Source code for core.binary
import contextlib
import os
from util import autolink
from util import elffile
from util.elffile import PT
from context import Context
from linker import Linker
[docs]class Binary:
"""Binary class representing a binary file
Use pt.binary to get this instance.
"""
def __init__(self, path):
self.path = path
self.fileobj = open(path, 'rb')
self.elf = elffile.open(fileobj=self.fileobj)
self.linker = Linker(self)
self.final_hook = []
self.asm_hook = []
self.c_hook = []
self.verbose = False
autolink.declare(self.linker)
start = 0xFFFFFFFFFFFFFFFF
end = 0
# find the end of current segments
# TODO: doesn't handle new mem being mapped or unmapped
for ph in reversed(self.elf.progs):
if ph.isload:
start = min(start, ph.vaddr)
end = max(ph.vaddr + ph.vsize, end)
def new_segment(addr):
"""adds a patch segment
Args:
addr (int): address to create segment
Returns:
ph: added program header
"""
align = 0x1000
ph = self.elf.programHeaderClass()
ph.data = bytearray()
ph.type = PT['PT_LOAD'].code
ph.vaddr = (addr + align - 1) & ~(align - 1)
ph.paddr = ph.vaddr
# TODO: default is RWX?!
ph.flags = 7
ph.align = align
ph.memsz = 0
ph.filesz = 0
self.elf.progs.append(ph)
return ph
# patch, nxpatch, linkpatch, jitpatch is new segments of different
# semantics, adds them to binary first, if we don't need any of them,
# just remove it when saving
self.patch = new_segment(end)
self.nxpatch = new_segment(end + 0x800000)
self.nxpatch.flags = 6 # RW
self.linkpatch = new_segment(end + 0x1600000)
self.jitpatch = new_segment(end + 0x2400000)
self.entry_hooks = []
def _seg(self, name):
"""get the segment of such name, default is 'patch'
"""
return {
'patch': self.patch,
'nx': self.nxpatch,
'link': self.linkpatch,
'jit': self.jitpatch,
}.get(name, 'patch')
[docs] @contextlib.contextmanager
def collect(self):
"""collects a context as a wrapper of binary
Returns:
Context: context of binary
"""
p = Context(self, verbose=self.verbose)
yield p
[docs] def next_alloc(self, target='patch'):
"""returns the address of next allocation
This actually returns the end of some segment
Args:
target (str): segment name, one of 'patch', 'nx', 'link' or 'jit'
Returns:
int: address of the next allocation(end of segment)
"""
return self._seg(target).vend
[docs] def alloc(self, size, target='patch'):
"""allocates a new chunk of memory of given size
Args:
size (int): size to allocate
target (str): where to put new memory, available choices are 'patch', 'nx', 'link' or 'jit'
Returns:
int: allocated memory start address
"""
# new segment, within target
ph = self._seg(target)
# next_alloc is used to get the address
# of the next allocation, which is what
# we are doing (thus the name)
tmp = self.next_alloc(target)
# set segment info
ph.data += '\0' * size
ph.memsz += size
ph.filesz += size
return tmp
def onfinal(self, cb):
self.final_hook.append(cb)
def onasm(self, cb):
self.asm_hook.append(cb)
[docs] def save(self, path):
"""saves a binary
Args:
path (str): the path to save binary to
Returns:
None
"""
self.nxpatch.flags &= ~1
print('[+] Saving binary to: {}'.format(path))
# hooking the entry point is a special case that generates a more efficient call table
if self.entry_hooks:
with self.collect() as pt:
# call each hook addr then jump to original entry point
calls = map(pt.arch.call, self.entry_hooks) + [pt.arch.jmp(pt.entry)]
addr = pt.inject(asm=';'.join(calls), internal=True)
pt.entry = addr
for cb in self.final_hook:
with self.collect() as pt:
cb(pt)
for prog in (self.patch, self.nxpatch, self.linkpatch, self.jitpatch):
# no program header is needed, remove it
if not prog.filesz and prog in self.elf.progs:
self.elf.progs.remove(prog)
self.elf.save(path)
os.chmod(path, 0755)


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I'm A Celebrity's Myles Stephenson 'terrified of spiders after false widow bite'
Myles Stephenson has admitted to feeling nervous as the hours count down before his I'm A Celebrity... Get Me Out Of Here! experience begins in earnest
by Mark Jefferies, James Brinsford, https://www.mirror.co.uk/authors/mark-jefferies/, https://www.facebook.com/james.brinsfordMyles Stephenson has opened up about his nerves on the eve of entering the jungle for I'm A Celebrity .
The 28-year-old former X Factor winner, who is a singer with R&B group Rak-Su, has admitted that he is starting to feel anxious, especially at the prospect of coming face-to-face with Australia's infamous spiders.
Speaking to The Mirror, Myles said that he has had a 'gentle introduction' to what will come already.
He said: "I found a cockroach in a pair of my shorts earlier so that scared me out a bit. Obviously I am getting a bit more nervous as we get closer to it.
"At least it is a baby step into what I am getting into."
It is his fear of spiders that could be the deciding factor as to whether he can survive the I'm A Celebrity process.
Myles has a real reason to fear the arachnids as well because he suffered the effects of a false widow spider bite.
Whereas his mother can handle the eight-legged creatures, Myles said that he is at the opposite end of the scale.
He continued: I am most scared of spiders, by a long shot. My mum can literally pick them up by her hand. She is fine with them.
"I have always been scared of them and it got worse.
"You know those false widows we have back in the UK, I got bitten by one of them a few years ago and it made my arm pretty swollen to since then it has got worse.
"It attacked me on my shoulder when I was in my bedroom at my mum's house."
Myles said that his mother's house was often a place where spiders gathered and this is where he was jumped upon by a false widow.
He continued: "When I used to live at my mum's my bedroom was downstairs and opened out onto the patio so I used to get a build up of spiders there. It just bit me on my shoulder whilst I was playing playstation.
"I didn't go to hospital but it made my arm pretty puffed up and hard to touch."
With the size of spiders Down Under a different ball game, Myles joked that they could finish him off.
He added: "I know there will be bigger ones in Australia, they will eat me!"
Despite this, Myles has insisted that he will not give up on a trial for the sake of his fear.
Speaking about what will drive him to complete tasks: "I like to think I won't because I don't like letting the rest of the camp and the family in there down.
"I wouldn't want to go back to camp empty handed. I will do my best and hopefully overcome my fears. I would like to think I will do well."
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