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Main Authors:	Bowerman, Roseann, Cady, Susan A.
Format:	Recurso educativo Open Access
Language:	en
Published:	1984
Subjects:	Cataloging Comparative Analysis Cost Effectiveness Databases Feasibility Studies Government Publications Library Catalogs Library Collections Library Technical Processes Models Online Systems Surveys Tables (Data)
Online Access:	https://eric.ed.gov/?id=EJ314148
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author	Bowerman, Roseann Cady, Susan A.
author_facet	Bowerman, Roseann Cady, Susan A. Bowerman, Roseann Cady, Susan A.
collection	Education Resources Information Center
contents	Government Publications in an Online Catalog: A Feasibility Study. Bowerman, Roseann Cady, Susan A. Cataloging Comparative Analysis Cost Effectiveness Databases Feasibility Studies Government Publications Library Catalogs Library Collections Library Technical Processes Models Online Systems Surveys Tables (Data) This investigation of utilization of machine-readable bibliographic records for government publications in online public access catalogs consists of a literature search, identification of applications of Government Printing Office (GPO) MARC tapes by bibliographic services and libraries, sampling GPO MARC test tape and profiling depository collection, and development of cost-effectiveness model. (15 references) (EJS)
format	Recurso educativo Open Access
id	eric_EJ314148
institution	ERIC Institute of Education Sciences
language	en
publishDate	1984
record_format	eric
spellingShingle	Government Publications in an Online Catalog: A Feasibility Study. Bowerman, Roseann Cady, Susan A. Cataloging Comparative Analysis Cost Effectiveness Databases Feasibility Studies Government Publications Library Catalogs Library Collections Library Technical Processes Models Online Systems Surveys Tables (Data) Government Publications in an Online Catalog: A Feasibility Study. Bowerman, Roseann Cady, Susan A. Cataloging Comparative Analysis Cost Effectiveness Databases Feasibility Studies Government Publications Library Catalogs Library Collections Library Technical Processes Models Online Systems Surveys Tables (Data) This investigation of utilization of machine-readable bibliographic records for government publications in online public access catalogs consists of a literature search, identification of applications of Government Printing Office (GPO) MARC tapes by bibliographic services and libraries, sampling GPO MARC test tape and profiling depository collection, and development of cost-effectiveness model. (15 references) (EJS)
title	Government Publications in an Online Catalog: A Feasibility Study.
topic	Cataloging Comparative Analysis Cost Effectiveness Databases Feasibility Studies Government Publications Library Catalogs Library Collections Library Technical Processes Models Online Systems Surveys Tables (Data)
url	https://eric.ed.gov/?id=EJ314148

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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