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Bibliographic Details
Main Author:	Murat Parmaksizoglu
Format:	Artículo científico
Language:	en
Published:	Universidad Nacional Autónoma de México 2014
Subjects:	Física, Astronomía y Matemáticas
Online Access:	https://www.redalyc.org/articulo.oa?id=57132995007
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SOFTWARE AND ELECTRONIC DEVELOPMENTS FOR TUG - T60 ROBOTIC TELESCOPE Murat Parmaksizoglu Murat Dindar Halil Kirbiyik Selcuk Helhel Física, Astronomía y Matemáticas Un telescopio rob ́otico es un telescopio que puede realizar observaciones sin intervenci ́on humana en persona. Su comportamiento base es autom ́atico y controlado por orde nador. Los telescopios rob ́oticos suelen funcionar bajo el control de un planificador, que provee control de alto nivel seleccionando objetivos astron ́omicos para observar. El telescopio rob ́otico T60 del observatorio nac ional de TUBITAK 2 (TUG) es controlado por el software c ́odigo abierto OCAAS, anteriormente llamado TAL ON. Este estudio introduce las mejoras sobre el software TALON, y nuevos dise ̃nos electr ́onicos y mec ́an icos. Las mejoras de dise ̃no y software han sido implementadas en el sistema de control del telescopio T60 y p robadas en el sistema real exitosamente. 2014 artículo científico 0185-1101 https://www.redalyc.org/articulo.oa?id=57132995007 en http://www.redalyc.org/revista.oa?id=571 Revista Mexicana de Astronomía y Astrofísica application/pdf Universidad Nacional Autónoma de México Revista Mexicana de Astronomía y Astrofísica (México) Vol.45

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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