Automatización de los Archivos Fotográficos. Modelos de fin de siglo: Oronoz y Scala

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Bibliographic Details
Main Author:	Juan Miguel Sánchez Vigil
Format:	Artículo científico
Language:	es
Published:	University of Pittsburgh 2002
Subjects:	Ciencias de la Información Databases Digitalización Digitalization Photo archives Bases de datos
Online Access:	Acceder al recurso
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_version_	1876437669146263552
author	Juan Miguel Sánchez Vigil
author_facet	Juan Miguel Sánchez Vigil
contents	Automatización de los Archivos Fotográficos. Modelos de fin de siglo: Oronoz y Scala Juan Miguel Sánchez Vigil Ciencias de la Información Databases Digitalización Digitalization Photo archives Bases de datos This article reflects on photographic documents, as well as with the development of new technologies applied to photo archives, old and new. It also studies digitalization processes and databases. 2002 artículo científico 1562-4730 https://www.redalyc.org/articulo.oa?id=16113406 es http://www.redalyc.org/revista.oa?id=161 Biblios application/pdf University of Pittsburgh Biblios (Estados Unidos de América) Num.13 Vol.4
format	Artículo científico
id	redalyc_16113406
institution	Redalyc
language	es
publishDate	2002
publisher	University of Pittsburgh
spellingShingle	Automatización de los Archivos Fotográficos. Modelos de fin de siglo: Oronoz y Scala Juan Miguel Sánchez Vigil Ciencias de la Información Databases Digitalización Digitalization Photo archives Bases de datos Automatización de los Archivos Fotográficos. Modelos de fin de siglo: Oronoz y Scala Juan Miguel Sánchez Vigil Ciencias de la Información Databases Digitalización Digitalization Photo archives Bases de datos This article reflects on photographic documents, as well as with the development of new technologies applied to photo archives, old and new. It also studies digitalization processes and databases. 2002 artículo científico 1562-4730 https://www.redalyc.org/articulo.oa?id=16113406 es http://www.redalyc.org/revista.oa?id=161 Biblios application/pdf University of Pittsburgh Biblios (Estados Unidos de América) Num.13 Vol.4
title	Automatización de los Archivos Fotográficos. Modelos de fin de siglo: Oronoz y Scala
topic	Ciencias de la Información Databases Digitalización Digitalization Photo archives Bases de datos
url	https://www.redalyc.org/articulo.oa?id=16113406

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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