<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html xmlns:fn="http://www.w3.org/2005/02/xpath-functions"> <head> <meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <link rel="stylesheet" href="../../../doc/otp_doc.css" type="text/css"> <title>Erlang -- ERTS User's Guide</title> </head> <body bgcolor="white" text="#000000" link="#0000ff" vlink="#ff00ff" alink="#ff0000"><div id="container"> <script id="js" type="text/javascript" language="JavaScript" src="../../../doc/js/flipmenu/flipmenu.js"></script><script id="js2" type="text/javascript" src="../../../doc/js/erlresolvelinks.js"></script><script language="JavaScript" type="text/javascript"> <!-- function getWinHeight() { var myHeight = 0; if( typeof( window.innerHeight ) == 'number' ) { //Non-IE myHeight = window.innerHeight; } else if( document.documentElement && ( document.documentElement.clientWidth || document.documentElement.clientHeight ) ) { //IE 6+ in 'standards compliant mode' myHeight = 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href="../../../doc/index.html">Top</a></small><p><strong>Erlang Run-Time System Application (ERTS)</strong><br><strong>User's Guide</strong><br><small>Version 5.7.5</small></p> <br><a href="javascript:openAllFlips()">Expand All</a><br><a href="javascript:closeAllFlips()">Contract All</a><p><small><strong>Chapters</strong></small></p> <ul class="flipMenu" imagepath="../../../doc/js/flipmenu"> <li id="no" title="Match specifications in Erlang" expanded="false">Match specifications in Erlang<ul> <li><a href="match_spec.html"> Top of chapter </a></li> <li title="Grammar"><a href="match_spec.html#id2268660">Grammar</a></li> <li title="Function descriptions"><a href="match_spec.html#id2252857">Function descriptions</a></li> <li title="Variables and literals"><a href="match_spec.html#id2268398">Variables and literals</a></li> <li title="Execution of the match"><a href="match_spec.html#id2270234">Execution of the match</a></li> <li title="Differences between match specifications in ETS and tracing"><a href="match_spec.html#id2263545">Differences between match specifications in ETS and tracing</a></li> <li title="Examples"><a href="match_spec.html#id2263587">Examples</a></li> </ul> </li> <li id="no" title="How to interpret the Erlang crash dumps" expanded="false">How to interpret the Erlang crash dumps<ul> <li><a href="crash_dump.html"> Top of chapter </a></li> <li title="General information"><a href="crash_dump.html#id2261628">General information</a></li> <li title="Memory information"><a href="crash_dump.html#id2258675">Memory information</a></li> <li title="Internal table information"><a href="crash_dump.html#id2258703">Internal table information</a></li> <li title="Allocated areas"><a href="crash_dump.html#id2258729">Allocated areas</a></li> <li title="Allocator"><a href="crash_dump.html#id2258756">Allocator</a></li> <li title="Process information"><a href="crash_dump.html#id2257718">Process information</a></li> <li title="Port information"><a href="crash_dump.html#id2270167">Port information</a></li> <li title="ETS tables"><a href="crash_dump.html#id2270185">ETS tables</a></li> <li title="Timers"><a href="crash_dump.html#id2270545">Timers</a></li> <li title="Distribution information"><a href="crash_dump.html#id2269602">Distribution information</a></li> <li title="Loaded module information"><a href="crash_dump.html#id2270347">Loaded module information</a></li> <li title="Fun information"><a href="crash_dump.html#id2270449">Fun information</a></li> <li title="Process Data"><a href="crash_dump.html#id2274914">Process Data</a></li> <li title="Atoms"><a href="crash_dump.html#id2275004">Atoms</a></li> <li title="Disclaimer"><a href="crash_dump.html#id2275022">Disclaimer</a></li> </ul> </li> <li id="no" title="How to implement an alternative carrier for the Erlang distribution" expanded="false">How to implement an alternative carrier for the Erlang distribution<ul> <li><a href="alt_dist.html"> Top of chapter </a></li> <li title="Introduction"><a href="alt_dist.html#id2275161">Introduction</a></li> <li title="The driver"><a href="alt_dist.html#id2275278">The driver</a></li> <li title="Putting it all together"><a href="alt_dist.html#id2276896">Putting it all together</a></li> </ul> </li> <li id="no" title="The Abstract Format" expanded="false">The Abstract Format<ul> <li><a href="absform.html"> Top of chapter </a></li> <li title="Module declarations and forms"><a href="absform.html#id2277208">Module declarations and forms</a></li> <li title="Atomic literals"><a href="absform.html#id2277433">Atomic literals</a></li> <li title="Patterns"><a href="absform.html#id2277500">Patterns</a></li> <li title="Expressions"><a href="absform.html#id2277731">Expressions</a></li> <li title="Clauses"><a href="absform.html#id2278484">Clauses</a></li> <li title="Guards"><a href="absform.html#id2278718">Guards</a></li> <li title="The abstract format after preprocessing"><a href="absform.html#id2279012">The abstract format after preprocessing</a></li> </ul> </li> <li id="no" title="tty - A command line interface" expanded="false">tty - A command line interface<ul> <li><a href="tty.html"> Top of chapter </a></li> <li title="Normal Mode"><a href="tty.html#id2279200">Normal Mode</a></li> <li title="Shell Break Mode"><a href="tty.html#id2279588">Shell Break Mode</a></li> </ul> </li> <li id="no" title="How to implement a driver" expanded="false">How to implement a driver<ul> <li><a href="driver.html"> Top of chapter </a></li> <li title="Introduction"><a href="driver.html#id2279722">Introduction</a></li> <li title="Sample driver"><a href="driver.html#id2279763">Sample driver</a></li> <li title="Compiling and linking the sample driver"><a href="driver.html#id2280238">Compiling and linking the sample driver</a></li> <li title="Calling a driver as a port in Erlang"><a href="driver.html#id2280278">Calling a driver as a port in Erlang</a></li> <li title="Sample asynchronous driver"><a href="driver.html#id2280404">Sample asynchronous driver</a></li> <li title="An asynchronous driver using driver_async"><a href="driver.html#id2280742">An asynchronous driver using driver_async</a></li> </ul> </li> <li id="no" title="Inet configuration" expanded="false">Inet configuration<ul> <li><a href="inet_cfg.html"> Top of chapter </a></li> <li title="Introduction"><a href="inet_cfg.html#id2281063">Introduction</a></li> <li title="Configuration Data"><a href="inet_cfg.html#id2281186">Configuration Data</a></li> <li title="User Configuration Example"><a href="inet_cfg.html#id2282118">User Configuration Example</a></li> </ul> </li> <li id="no" title="External Term Format" expanded="false">External Term Format<ul> <li><a href="erl_ext_dist.html"> Top of chapter </a></li> <li title="Introduction"><a href="erl_ext_dist.html#id2282236">Introduction</a></li> <li title="Distribution header"><a href="erl_ext_dist.html#id2282530">Distribution header</a></li> <li title="ATOM_CACHE_REF"><a href="erl_ext_dist.html#id2283139">ATOM_CACHE_REF</a></li> <li title="SMALL_INTEGER_EXT"><a href="erl_ext_dist.html#id2283216">SMALL_INTEGER_EXT</a></li> <li title="INTEGER_EXT"><a href="erl_ext_dist.html#id2283280">INTEGER_EXT</a></li> <li title="FLOAT_EXT"><a href="erl_ext_dist.html#id2283344">FLOAT_EXT</a></li> <li title="ATOM_EXT"><a href="erl_ext_dist.html#id2283423">ATOM_EXT</a></li> <li title="REFERENCE_EXT"><a href="erl_ext_dist.html#id2283520">REFERENCE_EXT</a></li> <li title="PORT_EXT"><a href="erl_ext_dist.html#id2283683">PORT_EXT</a></li> <li title="PID_EXT"><a href="erl_ext_dist.html#id2283803">PID_EXT</a></li> <li title="SMALL_TUPLE_EXT"><a href="erl_ext_dist.html#id2283950">SMALL_TUPLE_EXT</a></li> <li title="LARGE_TUPLE_EXT"><a href="erl_ext_dist.html#id2284043">LARGE_TUPLE_EXT</a></li> <li title="NIL_EXT"><a href="erl_ext_dist.html#id2284135">NIL_EXT</a></li> <li title="STRING_EXT"><a href="erl_ext_dist.html#id2284186">STRING_EXT</a></li> <li title="LIST_EXT"><a href="erl_ext_dist.html#id2284281">LIST_EXT</a></li> <li title="BINARY_EXT"><a href="erl_ext_dist.html#id2284402">BINARY_EXT</a></li> <li title="SMALL_BIG_EXT"><a href="erl_ext_dist.html#id2284501">SMALL_BIG_EXT</a></li> <li title="LARGE_BIG_EXT"><a href="erl_ext_dist.html#id2284611">LARGE_BIG_EXT</a></li> <li title="NEW_REFERENCE_EXT"><a href="erl_ext_dist.html#id2284715">NEW_REFERENCE_EXT</a></li> <li title="SMALL_ATOM_EXT"><a href="erl_ext_dist.html#id2284892">SMALL_ATOM_EXT</a></li> <li title="FUN_EXT"><a href="erl_ext_dist.html#id2285001">FUN_EXT</a></li> <li title="NEW_FUN_EXT"><a href="erl_ext_dist.html#id2285253">NEW_FUN_EXT</a></li> <li title="EXPORT_EXT"><a href="erl_ext_dist.html#id2285639">EXPORT_EXT</a></li> <li title="BIT_BINARY_EXT"><a href="erl_ext_dist.html#id2285785">BIT_BINARY_EXT</a></li> <li title="NEW_FLOAT_EXT"><a href="erl_ext_dist.html#id2285894">NEW_FLOAT_EXT</a></li> </ul> </li> <li id="no" title="Distribution Protocol" expanded="false">Distribution Protocol<ul> <li><a href="erl_dist_protocol.html"> Top of chapter </a></li> <li title="EPMD Protocol"><a href="erl_dist_protocol.html#id2286088">EPMD Protocol</a></li> <li title="Handshake"><a href="erl_dist_protocol.html#id2287429">Handshake</a></li> <li title="Protocol between connected nodes"><a href="erl_dist_protocol.html#id2287447">Protocol between connected nodes</a></li> <li title="New Ctrlmessages for distrvsn = 1 (OTP R4)"><a href="erl_dist_protocol.html#id2287901">New Ctrlmessages for distrvsn = 1 (OTP R4)</a></li> <li title="New Ctrlmessages for distrvsn = 2"><a href="erl_dist_protocol.html#id2288001">New Ctrlmessages for distrvsn = 2</a></li> <li title="New Ctrlmessages for distrvsn = 3 (OTP R5C)"><a href="erl_dist_protocol.html#id2288013">New Ctrlmessages for distrvsn = 3 (OTP R5C)</a></li> <li title="New Ctrlmessages for distrvsn = 4 (OTP R6)"><a href="erl_dist_protocol.html#id2288026">New Ctrlmessages for distrvsn = 4 (OTP R6)</a></li> </ul> </li> </ul> </div></div> <div id="content"> <div class="innertube"> <div class="frontpage"></div> <center><h1>Erlang Run-Time System Application (ERTS) User's Guide</h1></center> <center><h4>Version 5.7.5</h4></center> <center><h4>February 22 2010</h4></center> </div> <div class="footer"> <hr> <p>Copyright © 1997-2010 Ericsson AB. All Rights Reserved.</p> </div> </div> </div></body> </html>