Questions tagged [resource-management]
142 questions
4
votes
2 answers
HttpContext.GetGlobalResourceObject always returns null
I created two files in the App_GlobalResources folder:
SiteResources.en-US.resx
SiteResources.sp-SP.resx
Both contain a value for "SiteTitleSeparator".
Here is what I am trying to do (The following line always returns null):
string sep =…
Shimmy Weitzhandler
- 101,809
- 122
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- 632
3
votes
2 answers
Do (POSIX) Operating Systems recover resources after a process crashes?
Let's assume we have a process that allocates a socket listening on a specific port, does something with it and then terminates abnormaly. Now a second process starts and wants to allocate a socket listening on the same port that was previously held…
Johannes Rudolph
- 35,298
- 14
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- 172
3
votes
2 answers
Do I have to manually shut down an Executor at application exit?
Suppose I have an Executor executor; somewhere in my application. Is it sufficient to just say setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); as usual and let "the system" deal with it, or do I have to register a listener and call…
fredoverflow
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- 662
3
votes
3 answers
Do you clean before you make mess? On putting cleanup code inside finally block
I have a question concerning exception handling and resource management and I was wondering if anybody could share their opinion. I need to perform a sequence of actions: read app settings, setup the environment, do the stuff and then eventually…
lukem00
- 859
- 8
- 17
3
votes
1 answer
Generic handle class
I stumbled onto this problem: Using unique_ptr to control a file descriptor. The std::unique_ptr is not really appropriate for a general handle. So is the more general class
template
class…
user877329
- 6,717
- 8
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3
votes
2 answers
How to make sure resource is released, with nested object hierarchy?
I have code (simplified) like this:
class A {
B b = new B();
void close() {
b.close();
}
}
class B {
Closeable mustBeClosed = new Closeable() {
{
System.out.println("create");
}
…
Nan Wang
- 65
- 6
3
votes
1 answer
Do WPF Windows Dispose() their DataContexts?
If I set the DataContext of a Window to something that implements IDisposable, will it be Dispose()d when the Window is closed?
Shea Levy
- 5,237
- 3
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- 42
3
votes
1 answer
Are Iteratees safe for managing resources?
Suppose I were reading from an InputStream.
How I would normally do it:
val inputStream = ...
try {
doStuff(inputStream)
} finally {
inputStream.close()
}
Whether or not doStuff throws an exception, we will close the InputStream.
How I…
Paul Draper
- 78,542
- 46
- 206
- 285
2
votes
1 answer
Changing ResourceManager (Make it Updatable)
I have a project in MVC 3 (Razor) For localization we are using Strongly typed resources.
We want to have possibility to update translation that already exist "on-line". It means, that it should be possible to edit translation on the website. (e.g.…
Piter
- 29
- 2
2
votes
1 answer
Using __del__ properly when referencing external resources
I am dealing with an external library that does not handle its resources in a pythonic way. The library is natively a C++ library with a Python wrapper around it. Whenever a library function returns a C++ object, what I actually get is a string…
BlindDriver
- 627
- 3
- 14
2
votes
6 answers
Closing a resource stored in Option[ ]
I have a resource object stored in an option.
private var ochan: Option[Channel] = None
At some point during program execution, ochan is set to Some(channel). I'd like to close the channel (via invoking the method close) and set the option to None…
Andy
- 5,108
- 3
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- 37
2
votes
2 answers
how does Spark limit the usage of cpu cores and memory?
How does Spark limit the usage of cpu cores and memory?Does it use cgroups? How about Yarn?
luchy0120
- 55
- 1
- 6
2
votes
1 answer
Resize image when uploading to server or when serving from server to client?
My website uses many images. On a weak day users will upload hundreds of new images.
I'm trying to figure out what is the best-practice for manipulating sizes of images.
This project uses Node.js with gm module for manipulating images, but I don't…
Michael Seltenreich
- 3,013
- 2
- 29
- 55
2
votes
2 answers
Initialize object from another one in C++
In my project I have Resource objects which can be loaded and reloaded from different formats. Loading algorithms are implemented in different ResourceLoader subclasses.
class Resource
{
private:
// Not for client access
Type1…
Niello
- 83
- 6
2
votes
1 answer
Managing database and connection lifetime
In Qt there are a few steps that need to be finish until a database access can be done.
The very first step is to add a database by connection name:
QSqlDatabase::addDatabase("QMYSQL", connectionName);
After this I can use open() and close() to…
Silicomancer
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