open basedir - Page 833

Bi-directional communication with 1 socket - how to deal with collisions?

- by Zwei Steinen

Hi, I have one app. that consists of "Manager" and "Worker". Currently, the worker always initiates the connection, says something to the manager, and the manager will send the response. Since there is a LOT of communication between the Manager and the Worker, I'm considering to have a socket open between the two and do the communication. I'm also hoping to initiate the interaction from both sides - enabling the manager to say something to the worker whenever it wants. However, I'm a little confused as to how to deal with "collisions". Say, the manager decides to say something to the worker, and at the same time the worker decides to say something to the manager. What will happen? How should such situation be handled? P.S. I plan to use Netty for the actual implementation. Thank you very much in advance!

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PHP & AJAX SEO - For users with javascript and non javascript

- by RussellHarrower

So I understand this may come across as a open question, but I need away to solve this issue. I can either make the site do ajax request that load the body content, or I can have links that re-loads the whole page. I need the site to be SEO compliant, and I would really like the header to not re-load when the content changes, the reason is that we have a media player that plays live audio. Is there away that if Google BOT or someone without ajax enabled it does the site like normal href but if ajax or javascript allowed do it the ajax way.

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Unable to create application factory of class org.apache.wicket.spring.SpringWebApplicationFactory

- by theJava

org.apache.wicket.protocol.http.WebApplicationFactoryCreationException: Unable to create application factory of class org.apache.wicket.spring.SpringWebApplicationFactory at org.apache.wicket.protocol.http.WicketFilter.getApplicationFactory(WicketFilter.java:228) at org.apache.wicket.protocol.http.WicketFilter.init(WicketFilter.java:271) at org.apache.wicket.protocol.http.WicketFilter.init(WicketFilter.java:252) at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:713) at org.mortbay.jetty.servlet.Context.startContext(Context.java:140) at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1282) at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:518) at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:499) at org.mortbay.jetty.plugin.Jetty6PluginWebAppContext.doStart(Jetty6PluginWebAppContext.java:115) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152) at org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:156) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130) at org.mortbay.jetty.Server.doStart(Server.java:224) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.plugin.Jetty6PluginServer.start(Jetty6PluginServer.java:132) at org.mortbay.jetty.plugin.AbstractJettyMojo.startJetty(AbstractJettyMojo.java:454) at org.mortbay.jetty.plugin.AbstractJettyMojo.execute(AbstractJettyMojo.java:396) at org.mortbay.jetty.plugin.AbstractJettyRunMojo.execute(AbstractJettyRunMojo.java:210) at org.mortbay.jetty.plugin.Jetty6RunMojo.execute(Jetty6RunMojo.java:184) at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo(DefaultBuildPluginManager.java:107) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:195) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:148) at org.apache.maven.lifecycle.internal.MojoExecutor.execute(MojoExecutor.java:140) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:84) at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject(LifecycleModuleBuilder.java:59) at org.apache.maven.lifecycle.internal.LifecycleStarter.singleThreadedBuild(LifecycleStarter.java:183) at org.apache.maven.lifecycle.internal.LifecycleStarter.execute(LifecycleStarter.java:161) at org.apache.maven.DefaultMaven.doExecute(DefaultMaven.java:314) at org.apache.maven.DefaultMaven.execute(DefaultMaven.java:151) at org.apache.maven.cli.MavenCli.execute(MavenCli.java:445) at org.apache.maven.cli.MavenCli.doMain(MavenCli.java:168) at org.apache.maven.cli.MavenCli.main(MavenCli.java:132) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced(Launcher.java:290) at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:230) at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:409) at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:352) 2010-12-28 14:51:46.213:INFO::Started [email protected]:8080 I am using Wicket 1.5 M3, Spring 3.0 and i am getting this error. Below is my Web.xml config. <?xml version="1.0" encoding="ISO-8859-1"?> <web-app xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd" version="2.4"> <display-name>mysticpaste</display-name>  <filter> <filter-name>wicket.mysticpaste</filter-name> <filter-class> org.apache.wicket.protocol.http.WicketFilter </filter-class> <init-param> <param-name>applicationFactoryClassName</param-name> <param-value>org.apache.wicket.spring.SpringWebApplicationFactory</param-value> </init-param> </filter> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:com/mysticcoders/mysticpaste/spring/application-context.xml</param-value> </context-param> <listener> <listener-class> org.springframework.web.context.ContextLoaderListener </listener-class> </listener> <filter> <filter-name>wicket.session</filter-name> <filter-class>org.apache.wicket.protocol.http.servlet.WicketSessionFilter</filter-class> <init-param> <param-name>filterName</param-name> <param-value>wicket.mysticpaste</param-value> </init-param> </filter> <filter-mapping> <filter-name>wicket.session</filter-name> <url-pattern>/servlet/*</url-pattern> </filter-mapping> <filter> <filter-name>open.hibernate.session.in.view</filter-name> <filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class> </filter>  <filter-mapping> <filter-name>open.hibernate.session.in.view</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>

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What do angle brackets around an eclipse perspective mean?

- by Karin

I wrote a new perspective for our Eclipse RCP Project. The perspective worked fine, but because of a malconfiguration I had to revert to an earlier code-version in which this perspective didn't exist yet. The strange thing is it still gets shown in the "open perspective" Dialog. The only difference is, that it is now in angle brackets and appears two times. What do the angle brackets mean? (unresolved title perhaps?) And how can I get rid of these entries? Thanks a lot!

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Can't correctly stream x264 video to mobile via RTSP

- by Andrew

Hello! I'm trying to stream video compressed with x264 and NeroAAC and hinted with MP4Box. When i'm playing it with VLC player streaming works fine, as expected. When i'm trying to open URL with my HTC Hero, it switches to player mode, then starts "loading video" animation, then after some time it shows "unable to connect to server". Sample movies provided with DSS streamed fine regardless bitrate. I tried few encoding options, but always the same result. I suspect nocabac and level=11 but it didn't changed nothing. Is there some more specific encoding options for such type? Thank You!

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What is the best book in client server programming ?

- by Nayef

What is the best "new" book in client server programming with C#? I mean principles of inter-network architecture and communication protocols. Open systems and interoperability. Case studies of particular protocols from network layer and above. Socket programming. Remoting. Selected examples of networked client-server applications such as e-mail, news, file-transfer, HTTP. Client-Server Programming Project(s). Using APIs. Software tools and environments.

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Reading records from Excel PivotCache

- by hcpremium

I have an Excel workbook which contains a PivotCache I would like to use as a data source. var file = @"Foo.xls"; var excel = new Excel.Application(); var workbook = excel.Workbooks.Open(file); Excel.PivotCache cache = null; foreach (Excel.PivotCache pivotCache in workbook.PivotCaches()) { if (...) { cache = pivotCache; } } var records = cache.Recordset; The last command throws an exception (Exception from HRESULT: 0x800A03EC). How can I access the PivotCache? I tried it thru Ole DB first, but no success...

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Launch application from a browser

- by Goro

Hello, Is it possible to launch an application from a browser? I am not talking about opening a file from a browser (like open a PDF with Adobe Reader), but rather opening a new (blank) instance of an application that is installed on the user's machine. Hypothetical situation: User browses a website that lists computers that can be managed via RDP. He clicks on a link to 192.168.1.10, that link opens Microsoft RDP client (mstsc.exe) with that ip address already filled out. I am talking strictly about Windows universe. Is that thing even doable outside of ActiveX and IE? Is it wise to attempt this in IE with ActiveX ? Thanks a lot,

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we are getting .txt file but not getting proper alignment

- by pmms

we are getting the following texfile_screenshot1.JPG when we are exporting data to .txt file we need output which is shown in texfile_screenshot2.JPG following is the code $myFile = "user_password.txt"; $fh = fopen($myFile, 'a') or die("can't open file"); $newline ="\r\n"; fwrite ($fh,$newline); $stringData1 = $_POST['uname1']." "." "." " ; fwrite($fh, $stringData1); $stringData1 =$_POST['password1']." "." "." "; fwrite($fh,$stringData1); $stringData1 = $_POST['email1']." "." "." "; fwrite($fh, $stringData1); fclose($fh);

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Modal dialog blocks wcf callback

- by Bjarne

I am working on an application that relies strongly on a wcf request/callback pattern. That is, it uses a service which exposes a number of methods, and for each method there is a callback on which the result is returned. In the client, I wish to open a modal dialog, make a request on the server and then wait for the result on the callback. But I never get a callback since the UI thread is blocked by the modal dialog. Has anyone worked with a similar pattern? I would hate to have more threads in the client, and I also don't like the idea of 'simulating' a modal dialog.

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How to package AIR 2 native installer?

- by John Isaacks

I have made an AIR 2.0 app that uses NativeProcess so it needs to be packaged as a native installer (.exe) rather than a .air file. I first tried using Package Assistant but I kept getting an error telling me it cannot load keystore file. so I tried using the command line I use: pathToAirSDK>adt -args but I get an error telling me that "adt" is not a known command so I try: pathToAirSDK>adt.jar -args but I get a pop up telling me windows does not know how to open adt.jar files. Has anyone packaged a native installer for an AIR 2.0 app? How did you do it? edit forgot to mention I am doing this in windows using the windows command line.

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Passing multiple aruments to a UNIX shell script

- by Waffles

Hello all, I have the following (bash) shell script, that I would ideally use to kill multiple processes by name. #!/bin/bash kill `ps -A | grep $* | awk '{ print $1 }'` However, while this script works is one argument is passed: end chrome (the name of the script is end) it does not work if more than one argument is passed: $end chrome firefox grep: firefox: No such file or directory What is going on here? I thought the $* passes multiple arguments to the shell script in sequence. I'm not mistyping anything in my input - and I the programs I wan to kill (chrome and firefox) are open. Any help is appreciated.

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Assembly Programming on Mac

- by ida

I am on a Mac with Snow Leopard (10.6.3). I hear that the assembly language I work with has to be valid with the chipset that you use. I am completely new to this I have a basic background in C and Objective-C programming and an almost strong background in PHP. I have always wanted to see what assembly is all about. The tutorial I'll be looking at is by VTC [link]. What I want to know is: are the tutorials that I'm about to do compatible with the assembly version on the Mac that I have? Sorry I am completely new to this language although I do recall studying some of it way, way back in the day. I do have xcode and what I'm wondering is what kind of document would I open in xcode to work with assembly and does the Mac have a built in hex editor (when it comes time to needing it)? thanks

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CSS - How to Style a Selected Radio Buttons Label?

- by AnApprentice

Hello, I want to add a style to a radio button's selected label: HTML: <div class="radio-toolbar"> <label><input type="radio" value="all" checked>All</label> <label><input type="radio" value="false">Open</label> <label><input type="radio" value="true">Archived</label> </div> CSS .radio-toolbar input[type="radio"] {display:none;} .radio-toolbar label { background:Red; border:1px solid green; padding:2px 10px; } .radio-toolbar label + input[type="radio"]:checked { background:pink !important; } Any ideas what I'm doing wrong?

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JJIL Android Java Problem

- by Danny_E

Hey Guys, Long time reader never posted until now. Im having some trouble with Android, im implementing a library called JJIL its an open source imaging library. My problem is this i need to run some analysis on an image and to do so i need to have it in jjil.core.image format and once those processes are complete i need to convert the changed image from jjil.core.image to java.awt.image. I cant seem to find a method of doing this does anyone have any ideas or have any experience with this? I would be grateful of any help. Danny

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How do I prevent WIX CAQuietExec from logging the command line?

- by Noel Abrahams

In order to prevent command windows from popping up during installation I am using the WIX built-in custom action CAQuietExec. First I define the command line: <CustomAction Id="A01" Property="QtExecCmdLine" Value=""MyExe.exe" /password [PASSWORD]" /> NB: The PASSWORD property is defined as Hidden. This prevents the Windows installer from writing the property value to the log. Then I call into the embedded WIX extension: <CustomAction Id="A02" BinaryKey="WixCA" DllEntry="CAQuietExec" Execute="immediate" Return="ignore" /> This works fine. However, when I go to the temp folder and open up the MSI log I see the following entry: CAQuietExec: "C:\Program Files\MyExe.exe" /password INCLEARTEXT I.e. the password is displayed in clear text and not hidden. How do I prevent the CAQuietExec from logging the password in clear text?

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Run a SQL Script Against MySQL using Powershell

- by abarr

I have a Powershell script that backs up my MySQL DB's each night using mysqldump. This all works fine but I would like to extend the script to update a reporting db (db1) from the backup of the prod db (db2). I have written the following test script but it does not work. I have a feeling the problem is the reading of the sql file to the CommandText but I am not sure how to debug. [system.reflection.assembly]::LoadWithPartialName("MySql.Data") $mysql_server = "localhost" $mysql_user = "root" $mysql_password = "password" write-host "Create coonection to db1" # Connect to MySQL database 'db1' $cn = New-Object -TypeName MySql.Data.MySqlClient.MySqlConnection $cn.ConnectionString = "SERVER=$mysql_server;DATABASE=db1;UID=$mysql_user;PWD=$mysql_password" $cn.Open() write-host "Running backup script against db1" # Run Update Script MySQL $cm = New-Object -TypeName MySql.Data.MySqlClient.MySqlCommand $sql = Get-Content C:\db2.sql $cm.Connection = $cn $cm.CommandText = $sql $cm.ExecuteReader() write-host "Closing Connection" $cn.Close() Any assistance would be appreciated. Thanks.

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Difficulty determining the file type of text database file

- by Joseph Silvashy

So the USDA has some weird database of general nutrition facts about food, and well naturally we're going to steal it for use in our app. But anyhow the format of the lines is like the following: ~01001~^~0100~^~Butter, salted~^~BUTTER,WITH SALT~^~~^~~^~Y~^~~^0^~~^6.38^4.27^8.79^3.87 ~01002~^~0100~^~Butter, whipped, with salt~^~BUTTER,WHIPPED,WITH SALT~^~~^~~^~Y~^~~^0^~~^6.38^4.27^8.79^3.87 ~01003~^~0100~^~Butter oil, anhydrous~^~BUTTER OIL,ANHYDROUS~^~~^~~^~Y~^~~^0^~~^6.38^4.27^8.79^3.87 ~01004~^~0100~^~Cheese, blue~^~CHEESE,BLUE~^~~^~~^~Y~^~~^0^~~^6.38^4.27^8.79^3.87 With those odd ~ and ^ separating the values, It also lacks a header row but thats ok, I can figure that out from the other stuff on their site: http://www.ars.usda.gov/Services/docs.htm?docid=8964 Any help would be great! If it matters we're making an open/free API with Ruby to query this data. Additionally I'm having a tough time posing this question so I've made it a community wiki so we can all pitch in!

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MATLAB - Delete elements of binary files without loading entire file

- by Doresoom

This may be a stupid question, but Google and MATLAB documentation have failed me. I have a rather large binary file (10 GB) that I need to open and delete the last forty million bytes or so. Is there a way to do this without reading the entire file to memory in chunks and printing it out to a new file? It took 6 hours to generate the file, so I'm cringing at the thought of re-reading the whole thing. EDIT: The file is 14,440,000,000 bytes in size. I need to chop it to 14,400,000,000.

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How to catch exception on RollBack

- by Jagd

What is the best way to implement error handling for a SqlTransaction RollBack that already exists within a catch clause? My code is roughly like this: using (SqlConnection objSqlConn = new SqlConnection(connStr)) { objSqlConn.Open(); using (SqlTransaction objSqlTrans = objSqlConn.BeginTransaction()) { try { // code // more code // and more code } catch (Exception ex) { // What happens if RollBack() has an exception? objSqlTrans.Rollback(); throw ex; } } } I believe that my application had an exception in the try block, which in turn was caught in the catch block and then the RollBack was attempted. However, the error that I'm seeing says something about a SqlTransaction.ZombieCheck(), which is making me wonder if the RollBack() itself threw an exception as well. So, do I need to implement some type of error handling at the RollBack()? How do I do that and manage to hold on to the exception that put the execution into the catch block in the first place?

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problem installing rails3.0

- by Themasterhimself

Tried the link http://railscasts.com/episodes/200-rails-3-beta-and-rvm gokul@gokul-laptop:~$ ruby -v ruby 1.8.7 (2009-06-12 patchlevel 174) [i486-linux] gokul@gokul-laptop:~$ mkdir -p ~/.rvm/src/ && cd ~/.rvm/src && rm -rf ./rvm/ && git clone git://github.com/wayneeseguin/rvm.git && cd rvm && ./install The program 'git' is currently not installed. You can install it by typing: sudo apt-get install git-core git: command not found gokul@gokul-laptop:~/.rvm/src$ sudo apt-get install git-core [sudo] password for gokul: E: Could not get lock /var/lib/dpkg/lock - open (11: Resource temporarily unavailable) E: Unable to lock the administration directory (/var/lib/dpkg/), is another process using it? gokul@gokul-laptop:~/.rvm/src$ anyone?

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Any homologue of InternalsVisibleToAttribute, but for internal classes?

- by Will Marcouiller

In my most recent question: Unit Testing Best Practice? / C# InternalsVisibleTo() attribute for VBNET 2.0 while testing?, I was asking about InternalsVisibleToAttribute. I have read the documentation on how to use it, and everything is fine and understood. However, I can't instantiate my class Groupe from my Testing project. I want to be able to instantiate my internal class in my wrapper assembly, from my testing assembly. Any help is appreciated! EDIT Here's the compile-time error I get when I do try to instantiate my type: Erreur 2 'Carra.Exemples.Blocs.ActiveDirectory.Groupe' n'est pas accessible dans ce contexte, car il est 'Private'. C:\Open\Projects\Exemples\Src\Carra.Exemples.Blocs.ActiveDirectory\Carra.Exemples.Blocs.ActiveDirectory.Tests\GroupeTests.vb 9 18 Carra.Exemples.Blocs.ActiveDirectory.Tests (This says that my type is not accessible in this context, because it is private.) But it's Friend (internal)!

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should I include VB macros in source control with my project?

- by Sarah Vessels

For a C# project, I make use of several Visual Basic macros in Visual Studio. I was just considering that these would be of use to other developers that work on the C# project. The macros so far include removing trailing whitespace on save, organizing using directives and removing unnecessary ones, and an override for Ctrl-M Ctrl-O that expands regions. Would it be reasonable for me to include this macro code with my C# project in Subversion? I don't know if it's even possible for macros to be made available/work in Visual Studio just because you open a particular Solution file, and that might be too invasive since some of the macros override existing VS behavior.

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Python Importing object that originates in one module from a different module into a third module

- by adewinter

I was reading the sourcode for a python project and came across the following line: from couchexport.export import Format (source: https://github.com/wbnigeria/couchexport/blob/master/couchexport/views.py#L1 ) I went over to couchexport/export.py to see what Format was (Class? Dict? something else?). Unfortunately Format isn't in that file. export.py does however import a Format from couchexport.models where there is a Format class (source: https://github.com/wbnigeria/couchexport/blob/master/couchexport/models.py#L11). When I open up the original file in my IDE and have it look up the declaration, in line I mentioned at the start of this question, it leads directly to models.py. What's going on? How can an import from one file (export.py) actually be an import from another file (models.py) without being explicitly stated?

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Monitor and Terminate Python script based on system resource use

- by Vincent

What is the "right" or "best" way to monitor the system resources a python script is using and terminate it if the resource use exceeds some predetermined values. In my case memory usage is of concern. I am not asking how to measure the system resource use although I am open to suggestions. As a simple example, let's assume I have a function that finds prime numbers less than some large number and adds them to a list based on some condition. I don't know ahead of time how many prime numbers will satisfy the condition so I what to be sure to terminate the function if I use up to much system memory (8gb lets say). I know that there are ways to monitor the size of python objects. What I don't know is the proper way to monitor the size of the list and exit is to just include a size test in the prime function loop and exit if it exceeds 8gb or if there is an "external" way to monitor and exit.

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