The Microcomputer in the Library: V. Circulation Control and Serials Control.

Fuente: ERIC Institute of Education Sciences

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Bibliographic Details
Main Authors:	Leggate, Peter, Dyer, Hilary
Format:	Recurso educativo Open Access
Language:	en
Published:	1986
Subjects:	Computer Software Costs Database Management Systems Information Processing Library Automation Library Circulation Management Information Systems Merchandise Information Microcomputers Periodicals
Online Access:	Acceder al recurso
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The Microcomputer in the Library: III. Information Retrieval from External and Internal Databases.
by: Leggate, Peter, et al.
Published: (1986)

Small is Beautiful...IF.
by: Boss, Richard W., et al.
Published: (1986)

Small Library Automation: Information and Issues. Bulletin No. 91491.
Published: (1991)

Prospective Conversion: Data Transfer between Fossil and New Microcomputer Technologies in Libraries.
by: Vratny-Watts, Janet, et al.
Published: (1989)

Using a Microcomputer to Communicate: Part 1: The Basics.
by: Fenichel, Carol Hansen
Published: (1985)

Using a Microcomputer to Communicate: Part 2: Specialized Software.
by: Fenichel, Carol Hansen, et al.
Published: (1985)

The Microcomputer in the Library: I. Introduction.
by: Leggate, Peter, et al.
Published: (1985)

Microcomputer-Based Library Catalog Software.
by: Lundeen, Gerald, et al.
Published: (1984)

Understanding Library Microcomputer Systems. Professional Skills Series.
by: Palmer, Roger C.
Published: (1988)

Multi-Functional Library Systems.
by: Saffady, William
Published: (1985)

Microcomputers in Libraries.
by: Ertel, Monica M.
Published: (1984)

Circulation Systems on Microcomputers.
by: Carlson, Gary
Published: (1984)

Microcomputers Have a Place in the Small Public Library.
by: Koenig, Judith
Published: (1983)

Common Sense and Telecommunications, Or; Reach Out, But Watch Your Wallet.
by: Crawford, Walt
Published: (1985)

The Local Area Network (LAN) and Library Automation.
by: Farr, Rick C.
Published: (1983)

Software Choices for In-House Databases.
by: Tenopir, Carol, et al.
Published: (1988)

Attention Novices: Friendly Intro to Shiny Disks.
by: Bardes, D'Ellen
Published: (1986)

An Apple for the Librarian: The OUC Experience.
by: Planton, Stanley, et al.
Published: (1986)

The DOBIS and Washington Library Network Systems: A Comparison for the British Columbia Library Network. Revised.
by: Shoffner, Ralph M., et al.
Published: (1980)

Using Microsoft Access: A How-To-Do-It Manual for Librarians. How-To-Do-It Manuals for Librarians, Number 76.
by: Butler, E. Sonny
Published: (1997)

The Automated Library System Marketplace, 1982: Change and More Change!
by: Matthews, Joseph R.
Published: (1983)

Extending the OPAC: Creative Uses of Microcomputers To Enhance Library Services.
by: Freivalds, Dace I., et al.
Published: (1988)

Windows NT Systems for Libraries: An Overview of Emerging Products.
by: Cibbarelli, Pamela
Published: (1997)

Portable Micros: Potentials for Information Management.
by: Davis, Charles H.
Published: (1984)

The Dream of the Memex.
by: Rice, James G.
Published: (1988)

Microcomputer-Based Acquisitions.
by: Desmarais, Norman
Published: (1986)

Using dBase III in the Library.
by: Eichelberger, Susan, et al.
Published: (1987)

BCLN Hardware and Computing Facilities Evaluation Study. Final Report.
by: Smith, Stephen H.
Published: (1981)

The Use of SQL and Second Generation Database Management Systems for Data Processing and Information Retrieval in Libraries.
by: Leigh, William, et al.
Published: (1989)

Guide to Library Automation.
by: Toohill, Barbara G.
Published: (1980)

The Well-Equipped Searcher's Support Station.
by: Huffman, G. David, et al.
Published: (1986)

Microcomputer Software for Indexing.
by: Hodgson, Elizabeth
Published: (1987)

Micro-Based Relational Database for a Special Library.
by: Satalkar, Vasudha, et al.
Published: (1988)

Acquisitions Systems: Sydney Micro Library System.
by: Desmarais, Norman
Published: (1986)

Spreading CD-ROM Technology beyond the Library: Applications for Remote Communications Software.
by: Bell, Stephen
Published: (1990)

Automated System Market Place 1993. Part 2: Focus on Microcomputers.
by: Bridge, Frank R.
Published: (1993)

Taking It with You: Portable PCs.
by: Crawford, Walt
Published: (1993)

Automated Control for Videocassette Collections.
by: Dykhuis, Randy
Published: (1987)

Microcomputer-Based Access to Machine-Readable Numeric Databases.
by: Wenzel, Patrick
Published: (1988)

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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