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Bibliographic Details
Main Author:	Marilyn Montalvo Montalvo
Format:	Artículo científico
Language:	es
Published:	Universidad de Murcia 2017
Subjects:	Ciencias de la Información Caribe Puerto Rico metabuscadores WorldCat Local bibliotecas universi tarias
Online Access:	https://www.redalyc.org/articulo.oa?id=63552793004
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PLATAFORMAS DE DESCUBRIMIENTO EN BIBLIOTECAS UNIVERSITARIAS: EVALUACIÓN DE WORLDCAT LOCAL EN EL CONTEXTO DE UNA BIBLIOTECA CARIBEÑA Marilyn Montalvo Montalvo Ciencias de la Información Caribe Puerto Rico metabuscadores WorldCat Local bibliotecas universi tarias Se presenta una evaluación amplia de WorldCat Loca l (WCL), a la luz de su implementación en el Sistema de Bibliotecas de la Universidad de Puerto Ri co en Río Piedras (SB). Primeramente, se realiza una descripción detallada de su estructura, alcance, pr oceso de configuración e interfaz de búsqueda para explorar cómo sus rasgos inciden en la experiencia de descubrimie nto. En segundo lugar, se ofrecen los resultados de un sondeo realizado entre la comunidad universitaria para con ocer su opinión sobre el metabuscador. Se concluye que, si bien WCL no ha llenado las expectativas del SB desde la ó ptica administrativa, los usuarios valoran la dispo nibilidad de una herramienta que les permita agilizar la búsqued a de información. 2017 artículo científico 1575-2437 https://www.redalyc.org/articulo.oa?id=63552793004 es http://www.redalyc.org/revista.oa?id=635 Anales de Documentación application/pdf Universidad de Murcia Anales de Documentación (España) Num.2 Vol.20

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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