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  • Can I prevent IMAP from grabbing files over X mb using PHP?

    - by mike
    I'm building a little script that will connect to an IMAP account and grab the content of the email and also the attachments. It works well for the most part, but when a really large file comes in, it causes the script to time out. Is there any way that I can check the file size before trying to grab it? I think that would be the simplest solution. Otherwise, I may have to upgrade to a server that has more memory.

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  • Why use one dimensional array instead of a two dimensional arrray?

    - by user3869145
    I was doing some work handling a lot of information and my partner told me that I was using too many matrices to manipulate the variables of the problem. The idea was to use one dimension arrays int a[] instead of the 2 dimensional arrays int b[][], to save memory and processing speed of the algorithm. How certain is that this change will accelerate the speed of execution or compilation of my code in c ++?

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  • Processing large (over 1 Gig) files in PHP using stream_filter_*

    - by mike
    $fp_src=fopen('file','r'); $filter = stream_filter_prepend($fp_src, 'convert.iconv.ISO-8859-1/UTF-8'); while(fread($fp_src,4096)){ ++$count; if($count%1000==0) print ftell($fp_src)."\n"; } When I run this the script ends up consuming ~ 200 MB of RAM after going through just 35MB of the file. Running it without the stream_filter zips right through with a constant memory footprint of ~10 MB. What gives?

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  • SWI-Prolog: how to load rdf triples using semweb/rdf_db library?

    - by Li Li
    Hi, I have a rdf file (file.trp) in n-triples format, where each line is: "subject predicate object ." I tried to use rdf_load in semweb/rdf_db to load it into memory, but failed. Here is what I tried: ?- rdf_load('file.trp'). ?- rdf_load('file.trp', [format(triples]). the manual says it supports xml and triples. But it only loads rdf xml files. How can I load such rdf triple file? Thanks, Li

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  • Struct inside a class

    - by Balakrishnan
    I have a class definition of the form class X { public: //class functions private: A_type *A; //other class variables }; and struct A_type is defined as struct A_type { string s1,s2,s3; }; Inside the constructor, I allocate appropriate memory for A and try A[0].s1="somestring"; It shows segmentation fault. Is this kind of declaration invalid, or am I missing something

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  • Efficiently generate numpy array from list comprehension output?

    - by shootingstars
    Is there a more efficient way than using numpy.asarray() to generate an array from output in the form of a list? This appears to be copying everything in memory, which doesn't seem like it would be that efficient with very large arrays. (Updated) Example: import numpy as np a1 = np.array([1,2,3,4,5,6,7,8,9,10]) # pretend this has thousands of elements a2 = np.array([3,7,8]) results = np.asarray([np.amax(np.where(a1 > element)) for element in a2])

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  • Java execution details in System.out

    - by John
    As I remember there is a magic command line option in Java that turn on writing of operations that are currently executed to console. The output was looked like byte code. I do not mean -verbose, because it prints only class loading, while this option outputs information like memory allocation etc.

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  • ElanTech touchpad both keys simultaneously don't work

    - by Wojciech
    I have a huge problem with ElanTech touchpad. Without the ElanTech driver both the keys can be used at the same time(R+L). This is usefull in games like Mafia2 (can't play without it). When I install their driver I get the gestures, scrolling etc. but I can't use both keys at the same time. It is a common problem. Acer Aspire v3-571G Windows 7 x64 This didn't work at all: Synaptics 15.3.41.5 Is there any universal driver which will give me at least scrolling and simultaneous keys usage?

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  • Facebook data collection ethical issues

    - by the_great_monkey
    If I have a Facebook app, and my users agree to allow my app to access their information, photos, friends, etc, is it ethical to grab their information when they log in, and then saving it in memory so that the next time he goes to my app, it can load faster? If so, what about when the user logged off? Is the right thing to do to is to delete all the cached information and photos that the user provided? Has Facebook got any way to detect that we're doing this (saving their information, etc)?

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  • Any impact of restart OWSTIMER every hour?

    - by Khun
    I found OWSTIMER consume a lot of memory during create personal sites. (I have to pre-create personal sites for many users) After googling I found some suggestion to restart OWSTIMER but it’ll grow up again after create several personal sites. So I have to restart OWSTIMER every hour. Did you know any impact of restart OWSTIMER every hour? Thank you

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  • Passing C string reference to C#

    - by user336109
    c code extern "C" __declspec(dllexport) int export(LPCTSTR inputFile, string &msg) { msg = "haha" } c# code [DllImport("libXmlEncDll.dll")] public static extern int XmlDecrypt(StringBuilder inputFile, ref Stringbuilder newMsg) } I got an error when I try to retrieve the content of newMsg saying that I'm trying to write to a protected memory area. What is the best way to retrieve the string from c to c#. Thanks.

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  • C# program freezes without breakpoints

    - by Lily
    Hi, I'm implementing a program which gets text from various sites and checks which ones are most relevant to a query. The problem is that when I have breakpoints in my code it works perfectly well but without it, the program just freezes. Is this a memory issue? What can I do to solve this please? THanks

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  • Is Appfogs pricing model sustainable?

    - by Kyle Finley
    I was looking at AppFog's Pricing and they appear to be giving 2GB of ram away for free, to nonpaying customers. This seems unprecedented for PAAS provodes--providers like Heroku and App Engine remove the app from memory if it has been inactive for certain amount of time. Does cloudfoundry work similarly? Am I wrong in assuming that in a few years appfog servers will be filled with inactive non paying applications?

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  • What does it mean to flush a socket?

    - by User4748402
    I don't really know much about sockets except how to read and write to them as if they were files. I know a little about using socket selectors. I don't get why you have to flush a socket, what's actually happening there? The bits just hang out somewhere in memory until they get pushed off? I read some things online about sockets, but it's all very abstract and high level. What's actually happening here?

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