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  • Guaranteed semaphore order?

    - by Steve_
    The documentation for the .NET Semaphore class states that: There is no guaranteed order, such as FIFO or LIFO, in which blocked threads enter the semaphore. In this case, if I want a guaranteed order (either FIFO or LIFO), what are my options? Is this something that just isn't easily possible? Would I have to write my own Semaphore? I assume that would be pretty advanced? Thanks, Steve

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  • Free Time Tracking Web Application

    - by cwius
    Are you aware of any good time tracking web application (hosted, download) that is free or open source? I am looking for something to track the time I spend on projects and bug fixes. I am already looking at ASP .NET 2.0 Time Tracker Starter Kit but wanted to see if there is anything else out there or should I write my own application.

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  • Java keyboard hook

    - by Jason S
    I would like to write a Java app that counts how long I have been using the keyboard or mouse w/o a break. Are there any built-in classes or 3rd party libraries that can detect global keyboard/mouse use?

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  • Diamond square algorithm.

    - by Gabriel A. Zorrilla
    I'm trying to write the Diamond-Square algorithm in Java to generate a random map but can't figure out the implementation... Anyone with some Java code (or other language) so i can check how the loop is made would be greatly appreciated! Thanks!

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  • Implementing SSL tunnel in C#

    - by RaYell
    As a part of a larger application I need to implement an SSL tunnel in C#. I was wondering if there's a better way of doing that instead of writing each step of SSL negotiation myself which sounds like reinventing the wheel. Do you know if there are any libraries that I could use to minimize the code I need to write or any tutorials which show how this or similar thing can be implemented most efficiently in .NET?

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  • Validate a string in a table in SQL Server - CLR function or T-SQL (Question updated)

    - by Ashish Gupta
    I need to check If a column value (string) in SQL server table starts with a small letter and can only contain '_', '-', numbers and alphabets. I know I can use a SQL server CLR function for that. However, I am trying to implement that validation using a scalar UDF and could make very little here...I can use 'NOT LIKE', but I am not sure how to make sure I validate the string irrespective of the order of characters or in other words write a pattern in SQL for this. Am I better off using a SQL CLR function? Any help will be appreciated.. Thanks in advance Thank you everyone for their comments. This morning, I chose to go CLR function way. For the purpose of what I was trying to achieve, I created one CLR function which does the validation of an input string and have that called from a SQL UDF and It works well. Just to measure the performance of t-SQL UDF using SQL CLR function vs t- SQL UDF, I created a SQL CLR function which will just check if the input string contains only small letters, it should return true else false and have that called from a UDF (IsLowerCaseCLR). After that I also created a regular t-SQL UDF(IsLowerCaseTSQL) which does the same thing using the 'NOT LIKE'. Then I created a table (Person) with columns Name(varchar) and IsValid(bit) columns and populate that with names to test. Data :- 1000 records with 'Ashish' as value for Name column 1000 records with 'ashish' as value for Name column then I ran the following :- UPDATE Person Set IsValid=1 WHERE dbo.IsLowerCaseTSQL (Name) Above updated 1000 records (with Isvalid=1) and took less than a second. I deleted all the data in the table and repopulated the same with same data. Then updated the same table using Sql CLR UDF (with Isvalid=1) and this took 3 seconds! If update happens for 5000 records, regular UDF takes 0 seconds compared to CLR UDF which takes 16 seconds! I am very less knowledgeable on t-SQL regular expression or I could have tested my actual more complex validation criteria. But I just wanted to know, even I could have written that, would that have been faster than the SQL CLR function considering the example above. Are we using SQL CLR because we can implement we can implement lot richer logic which would have been difficult otherwise If we write in regular SQL. Sorry for this long post. I just want to know from the experts. Please feel free to ask if you could not understand anything here. Thank you again for your time.

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  • Parallel port recording to file on Win XP

    - by Nikola Kotur
    Hi there. I need to write a simple program that records all the input from parallel port into a file. Data flows from industrial machine, setup is fairly simple, but I can't find any good open source examples on parallel port reading for Windows. Do you know a software that does this (and lets me learn how to do it myself), or is there any guideline for parallel port programming on XP? Thanks.

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  • HIt counter in JSF

    - by Hari kanna
    hi expertise... i want 2 add small module hit counter in my web app like in PHP we can use external text file to store number which icrement and write it on webpage but how to use in JSF my app is full of developing JSF...

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  • interview questions - little help

    - by Idan
    i ran into thos quesiton in a google search.... they look pretty common, but i couldn't find a decent answer. any tips/links ? 1.Remove duplicates in array in O(n) without extra array 2.Write a program whose printed output is an exact copy of the source. Needless to say, merely echoing the actual source file is not allowed.

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  • Binding Setter.Value from code

    - by chaiguy
    In XAML I can write something like this: <Setter Property="PropertyName" Value="{Binding ...}" /> How would I do this in code? I've constructed bindings in code before, but I can't seem to find any static ValueProperty object on the Setter class to pass to BindingOperations.SetBinding().

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  • iPhone file corruption

    - by sfider
    Is it possible (on iPhone/iPod Touch) for a file written like this: if (FILE* file = fopen(filename, "wb")) { fwrite(buf, buf_size, 1, file); fclose(file); } to get corrupted, e.g. when app is forced to terminate? From what I know fwrite should be an atomic operation, so when I write whole file with one instruction no corruption should occure. I could not find any information on the net that would say otherwise.

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  • Xcode Objective-c warnings "creating selector for nonexistent method" with OCUnit (SenTestingKit)

    - by niblha
    I started getting getting warnings like the following in XCode when trying to write some unit tests with OCUnit (SenTestingKit). warning: creating selector for nonexistent method 'myMethodName1:' warning: creating selector for nonexistent method 'myMethodName2:' ... warning: creating selector for nonexistent method 'release' warning: creating selector for nonexistent method 'retain' warning: creating selector for nonexistent method 'alloc' warning: creating selector for nonexistent method 'init' Is it something I should worry about, or can I somehow disable these types of warnings by some compiler flag?

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  • Disable lazy loading by default in Entity Framework 4

    - by Mikey Cee
    It seems that lazy loading is enabled by default in EF4. At least, in my project, I can see that the value of dataContext.ContextOptions.LazyLoadingEnabled is true by default. I don't want lazy loading and I don't want to have to write: dataContext.ContextOptions.LazyLoadingEnabled = false; each time I get a new context. So is there a way to turn it off by default, say, across the whole project?

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  • best way to deal with python pdb flakiness re/stdout?

    - by YGA
    I love python and hate the pdb debugger. For instance, if I have a program where stdout is redirected, my pdb prompts all go to the redirection, because the library was written to write to stdout. Oftentimes this problem is subtle, causing me to think a program is hanging when it's really waiting for input. How do people work around this? (Unfortunately, using other debuggers like winpdb is not an option). Thanks, /YGA

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  • Generic function that accept a table and column name and returns all the primary key values that mat

    - by nashr rafeeg
    i have functions that look like this that is littered through out the code def get_M_status(S): M_id = merital.select(merital.c.marital_status_description == S).execute().fetchone() if M_id == None: print "Warning: No Marital id found for %s Merital status to Single" % S M_id = merital.select(merital.c.marital_status_description == "Single").execute().fetchone() return M_id[0] i was wondering if their is a way to write a generic function where i can pass the relevant values ie: table name primary key column filter column and filter value cheers

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  • Sleep Command in T-SQL?

    - by skb
    Is there to way write a T-SQL command to just make it sleep for a period of time? I am writing a web service asynchronously and I want to be able to run some tests to see if the asynchronous pattern is really going to make it more scalable. In order to "mock" an external service that is slow, I want to be able to call a SQL server with a script that runs slowly, but isn't actually processing a ton of stuff.

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  • MacFUSE: Keepalive?

    - by Wilco
    Is there a way to configure MacFUSE to keep a mounted volume alive if the remote host is set to break the connection due to inactivity? If there is no direct way to configure this, would there be a way to write a script to accomplish this?

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