<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <link rel="stylesheet" href="style.css" type="text/css"> <meta content="text/html; charset=iso-8859-1" http-equiv="Content-Type"> <link rel="Start" href="index.html"> <link rel="previous" href="Uq_engines.poll_process_engine.html"> <link rel="next" href="Uq_engines.engine_mixin.html"> <link rel="Up" href="Uq_engines.html"> <link title="Index of types" rel=Appendix href="index_types.html"> <link title="Index of exceptions" rel=Appendix href="index_exceptions.html"> <link title="Index of values" rel=Appendix href="index_values.html"> <link title="Index of class attributes" rel=Appendix href="index_attributes.html"> <link title="Index of class methods" rel=Appendix href="index_methods.html"> <link title="Index of classes" rel=Appendix href="index_classes.html"> <link title="Index of class types" rel=Appendix href="index_class_types.html"> <link title="Index of modules" rel=Appendix href="index_modules.html"> <link title="Index of module types" rel=Appendix href="index_module_types.html"> <link title="Uq_gtk" rel="Chapter" href="Uq_gtk.html"> <link title="Equeue" rel="Chapter" href="Equeue.html"> <link title="Unixqueue" rel="Chapter" href="Unixqueue.html"> <link title="Uq_engines" rel="Chapter" href="Uq_engines.html"> <link title="Uq_socks5" rel="Chapter" href="Uq_socks5.html"> <link title="Unixqueue_mt" rel="Chapter" href="Unixqueue_mt.html"> <link title="Equeue_intro" rel="Chapter" href="Equeue_intro.html"> <link title="Uq_ssl" rel="Chapter" href="Uq_ssl.html"> <link title="Uq_tcl" rel="Chapter" href="Uq_tcl.html"> <link title="Netcgi_common" rel="Chapter" href="Netcgi_common.html"> <link title="Netcgi" rel="Chapter" href="Netcgi.html"> <link title="Netcgi_ajp" rel="Chapter" href="Netcgi_ajp.html"> <link title="Netcgi_scgi" rel="Chapter" href="Netcgi_scgi.html"> <link title="Netcgi_cgi" rel="Chapter" href="Netcgi_cgi.html"> <link title="Netcgi_fcgi" rel="Chapter" href="Netcgi_fcgi.html"> <link title="Netcgi_dbi" rel="Chapter" href="Netcgi_dbi.html"> <link title="Netcgi1_compat" rel="Chapter" href="Netcgi1_compat.html"> <link title="Netcgi_test" rel="Chapter" href="Netcgi_test.html"> <link title="Netcgi_porting" rel="Chapter" href="Netcgi_porting.html"> <link title="Netcgi_plex" rel="Chapter" href="Netcgi_plex.html"> <link title="Http_client" rel="Chapter" href="Http_client.html"> <link title="Telnet_client" rel="Chapter" href="Telnet_client.html"> <link title="Ftp_data_endpoint" rel="Chapter" href="Ftp_data_endpoint.html"> <link title="Ftp_client" rel="Chapter" href="Ftp_client.html"> <link title="Nethttpd_types" rel="Chapter" href="Nethttpd_types.html"> <link title="Nethttpd_kernel" rel="Chapter" href="Nethttpd_kernel.html"> <link title="Nethttpd_reactor" rel="Chapter" href="Nethttpd_reactor.html"> <link title="Nethttpd_engine" rel="Chapter" href="Nethttpd_engine.html"> <link title="Nethttpd_services" rel="Chapter" href="Nethttpd_services.html"> <link title="Nethttpd_plex" rel="Chapter" href="Nethttpd_plex.html"> <link title="Nethttpd_intro" rel="Chapter" href="Nethttpd_intro.html"> <link title="Netplex_types" rel="Chapter" href="Netplex_types.html"> <link title="Netplex_mp" rel="Chapter" href="Netplex_mp.html"> <link title="Netplex_mt" rel="Chapter" href="Netplex_mt.html"> <link title="Netplex_log" rel="Chapter" href="Netplex_log.html"> <link title="Netplex_controller" rel="Chapter" href="Netplex_controller.html"> <link title="Netplex_container" rel="Chapter" href="Netplex_container.html"> <link title="Netplex_sockserv" rel="Chapter" href="Netplex_sockserv.html"> <link title="Netplex_workload" rel="Chapter" href="Netplex_workload.html"> <link title="Netplex_main" rel="Chapter" href="Netplex_main.html"> <link title="Netplex_config" rel="Chapter" href="Netplex_config.html"> <link title="Netplex_kit" rel="Chapter" href="Netplex_kit.html"> <link title="Rpc_netplex" rel="Chapter" href="Rpc_netplex.html"> <link title="Netplex_cenv" rel="Chapter" href="Netplex_cenv.html"> <link title="Netplex_intro" rel="Chapter" href="Netplex_intro.html"> <link title="Netshm" rel="Chapter" href="Netshm.html"> <link title="Netshm_data" rel="Chapter" href="Netshm_data.html"> <link title="Netshm_hashtbl" rel="Chapter" href="Netshm_hashtbl.html"> <link title="Netshm_array" rel="Chapter" href="Netshm_array.html"> <link title="Netshm_intro" rel="Chapter" href="Netshm_intro.html"> <link title="Netconversion" rel="Chapter" href="Netconversion.html"> <link title="Netchannels" rel="Chapter" href="Netchannels.html"> <link title="Netstream" rel="Chapter" href="Netstream.html"> <link title="Mimestring" rel="Chapter" href="Mimestring.html"> <link title="Netmime" rel="Chapter" href="Netmime.html"> <link title="Netsendmail" rel="Chapter" href="Netsendmail.html"> <link title="Neturl" rel="Chapter" href="Neturl.html"> <link title="Netaddress" rel="Chapter" href="Netaddress.html"> <link title="Netbuffer" rel="Chapter" href="Netbuffer.html"> <link title="Netdate" rel="Chapter" href="Netdate.html"> <link title="Netencoding" rel="Chapter" href="Netencoding.html"> <link title="Netulex" rel="Chapter" href="Netulex.html"> <link title="Netaccel" rel="Chapter" href="Netaccel.html"> <link title="Netaccel_link" rel="Chapter" href="Netaccel_link.html"> <link title="Nethtml" rel="Chapter" href="Nethtml.html"> <link title="Netstring_str" rel="Chapter" href="Netstring_str.html"> <link title="Netstring_pcre" rel="Chapter" href="Netstring_pcre.html"> <link title="Netstring_mt" rel="Chapter" href="Netstring_mt.html"> <link title="Netmappings" rel="Chapter" href="Netmappings.html"> <link title="Netaux" rel="Chapter" href="Netaux.html"> <link title="Nethttp" rel="Chapter" href="Nethttp.html"> <link title="Netchannels_tut" rel="Chapter" href="Netchannels_tut.html"> <link title="Netmime_tut" rel="Chapter" href="Netmime_tut.html"> <link title="Netsendmail_tut" rel="Chapter" href="Netsendmail_tut.html"> <link title="Netulex_tut" rel="Chapter" href="Netulex_tut.html"> <link title="Neturl_tut" rel="Chapter" href="Neturl_tut.html"> <link title="Netsys" rel="Chapter" href="Netsys.html"> <link title="Netpop" rel="Chapter" href="Netpop.html"> <link title="Rpc_auth_dh" rel="Chapter" href="Rpc_auth_dh.html"> <link title="Rpc_key_service" rel="Chapter" href="Rpc_key_service.html"> <link title="Rpc_time" rel="Chapter" href="Rpc_time.html"> <link title="Rpc_auth_local" rel="Chapter" href="Rpc_auth_local.html"> <link title="Rtypes" rel="Chapter" href="Rtypes.html"> <link title="Xdr" rel="Chapter" href="Xdr.html"> <link title="Rpc" rel="Chapter" href="Rpc.html"> <link title="Rpc_program" rel="Chapter" href="Rpc_program.html"> <link title="Rpc_portmapper_aux" rel="Chapter" href="Rpc_portmapper_aux.html"> <link title="Rpc_packer" rel="Chapter" href="Rpc_packer.html"> <link title="Rpc_transport" rel="Chapter" href="Rpc_transport.html"> <link title="Rpc_client" rel="Chapter" href="Rpc_client.html"> <link title="Rpc_simple_client" rel="Chapter" href="Rpc_simple_client.html"> <link title="Rpc_portmapper_clnt" rel="Chapter" href="Rpc_portmapper_clnt.html"> <link title="Rpc_portmapper" rel="Chapter" href="Rpc_portmapper.html"> <link title="Rpc_server" rel="Chapter" href="Rpc_server.html"> <link title="Rpc_auth_sys" rel="Chapter" href="Rpc_auth_sys.html"> <link title="Rpc_intro" rel="Chapter" href="Rpc_intro.html"> <link title="Rpc_mapping_ref" rel="Chapter" href="Rpc_mapping_ref.html"> <link title="Rpc_ssl" rel="Chapter" href="Rpc_ssl.html"> <link title="Rpc_xti_client" rel="Chapter" href="Rpc_xti_client.html"> <link title="Shell_sys" rel="Chapter" href="Shell_sys.html"> <link title="Shell" rel="Chapter" href="Shell.html"> <link title="Shell_uq" rel="Chapter" href="Shell_uq.html"> <link title="Shell_mt" rel="Chapter" href="Shell_mt.html"> <link title="Shell_intro" rel="Chapter" href="Shell_intro.html"> <link title="Netsmtp" rel="Chapter" href="Netsmtp.html"><title>Ocamlnet 2 Reference Manual : Uq_engines.watchdog</title> </head> <body> <div class="navbar"><a href="Uq_engines.poll_process_engine.html">Previous</a> <a href="Uq_engines.html">Up</a> <a href="Uq_engines.engine_mixin.html">Next</a> </div> <center><h1>Class <a href="type_Uq_engines.watchdog.html">Uq_engines.watchdog</a></h1></center> <br> <pre><span class="keyword">class</span> <a name="TYPEwatchdog"></a>watchdog : <code class="type">float -> 'a #<a href="Uq_engines.engine.html">engine</a> -> </code><code class="type">[unit]</code> <code class="type"><a href="Uq_engines.engine.html">engine</a></code></pre>A watchdog engine checks whether the argument engine makes progress, and if there is no progress for the passed number of seconds, the engine is aborted, and the watchdog state changes to <code class="code">`Error Watchdog_timeout</code>. <p> The current implementation is not very exact, and it may take a little longer than the passed period of inactivity until the watchdog recognizes inactivity. <p> If the argument engine terminates, the watchdog changes its state to <code class="code">`Done ()</code> <p> Important note: The watchdog assumes that the <code class="code">`Working</code> state of the target engine really counts events that indicate progress. This does not work for:<ul> <li><code class="code">poll_process_engine</code>: there is no way to check whether a subprocess makes progress</li> <li><code class="code">connector</code>: It is usually not possible to reflect the progress on packet level</li> <li><code class="code">listener</code>: It is usually not possible to reflect the progress on packet level</li> </ul> <br> <hr width="100%"> </body></html>
