The Once and Future Library.

Fuente: ERIC Institute of Education Sciences

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Bibliographic Details
Main Author:	Walter, Virginia
Format:	Recurso educativo Open Access
Language:	en
Published:	2001
Subjects:	Change Strategies Childrens Libraries Evaluation Needs Futures (of Society) Guidelines Leadership Library Education Library Planning Library Policy Library Services Organizational Change Policy Formation Program Improvement Public Relations Research Needs
Online Access:	Acceder al recurso
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author	Walter, Virginia
author_facet	Walter, Virginia Walter, Virginia
collection	Education Resources Information Center
contents	The Once and Future Library. Walter, Virginia Change Strategies Childrens Libraries Evaluation Needs Futures (of Society) Guidelines Leadership Library Education Library Planning Library Policy Library Services Organizational Change Policy Formation Program Improvement Public Relations Research Needs Presents guidelines to help children's librarians develop libraries that will meet the future needs of children. Highlights include developing leaders; winning allies; improving public relations efforts; policy formation; organizational change; changing library education; doing research; and the need for evaluation. (LRW)
format	Recurso educativo Open Access
id	eric_EJ625145
institution	ERIC Institute of Education Sciences
language	en
publishDate	2001
record_format	eric
spellingShingle	The Once and Future Library. Walter, Virginia Change Strategies Childrens Libraries Evaluation Needs Futures (of Society) Guidelines Leadership Library Education Library Planning Library Policy Library Services Organizational Change Policy Formation Program Improvement Public Relations Research Needs The Once and Future Library. Walter, Virginia Change Strategies Childrens Libraries Evaluation Needs Futures (of Society) Guidelines Leadership Library Education Library Planning Library Policy Library Services Organizational Change Policy Formation Program Improvement Public Relations Research Needs Presents guidelines to help children's librarians develop libraries that will meet the future needs of children. Highlights include developing leaders; winning allies; improving public relations efforts; policy formation; organizational change; changing library education; doing research; and the need for evaluation. (LRW)
title	The Once and Future Library.
topic	Change Strategies Childrens Libraries Evaluation Needs Futures (of Society) Guidelines Leadership Library Education Library Planning Library Policy Library Services Organizational Change Policy Formation Program Improvement Public Relations Research Needs
url	https://eric.ed.gov/?id=EJ625145

if (filemtime($filename) + $maxlifetime < time()) { unlink($filename); $count++; } } return $count; } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ protected function saveSession($sessId, $data): bool { $sessFile = $this->path . '/sess_' . $sessId; if ($handle = fopen($sessFile, 'w')) { $return = false; // Lock the file for exclusive access to avoid issues with multiple // processes writing session simultaneously: if (flock($handle, LOCK_EX)) { $return = fwrite($handle, $data); // Make sure that there's no trailing data by truncating the file to // the correct length: ftruncate($handle, strlen($data)); fflush($handle); flock($handle, LOCK_UN); } fclose($handle); if ($return !== false) { return true; } } // If we got this far, something went wrong with the file output... // It is tempting to throw an exception here, but this code is called // outside of the context of exception handling, so all we can do is // echo a message.

// Anecdotal testing Today and Yesterday seems to indicate destroy() // is called by the garbage collector and everything is good. // Something to keep in mind though. return 0; } /** * Write function that is called when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ public function write($sessId, $data): bool { if ($this->writesDisabled) { return true; } return $this->saveSession($sessId, $data); } /** * A function that is called internally when session data is to be saved. * * @param string $sessId The current session ID * @param string $data The session data to write * * @return bool */ abstract protected function saveSession($sessId, $data): bool; }

* * @return void */ public function writeClose() { // The assumption is that we're using PHP's ext/session. // session_write_close() will actually overwrite $_SESSION with an // empty array on completion -- which leads to a mismatch between what // is in the storage object and $_SESSION. To get around this, we // temporarily reset $_SESSION to an array, and then re-link it to // the storage object. // // Additionally, while you _can_ write to $_SESSION following a // session_write_close() operation, no changes made to it will be // flushed to the session handler. As such, we now mark the storage // object isImmutable. $storage = $this->getStorage(); if (! $storage->isImmutable()) { $_SESSION = $storage->toArray(true); session_write_close(); $storage->fromArray($_SESSION); $storage->markImmutable(); } } /** * Attempt to set the session name * * If the session has already been started, or if the name provided fails * validation, an exception will be raised. * * @param string $name * @return SessionManager * @throws Exception\InvalidArgumentException */ public function setName($name) { if ($this->sessionExists()) { throw new Exception\InvalidArgumentException( 'Cannot set session name after a session has already started'

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