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Hey all,
Quite a specific question, but I was wondering if anyone has had any problems getting the first signal to be caught in a consumer-producer relationship with multiple consumers (HTTP web server)
for(i = 0; i < num_threads; i++) { pthread_cond...
Started by Matt on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
Existing sequence: numRequests++; pthread_cond_signal(&condVars[nextWorker]);
Proposed sequence: pthread_cond_signal(&condVars....
I feel changing the order of incrementing 'numRequests' in producer will ensure the consumer will not miss the first signal .
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I was told that in Java, unchecked exceptions can be caught in a try block, but if it's caught, isn't it called a checked exception?
Started by Anonymous on
, 4 posts
by 4 people.
Answer Snippets (Read the full thread at stackoverflow):
The definition of checked and unchecked exceptions an unchecked exception is... .
Unchecked are exceptions that need to be caught in a try - catch block.
Unchecked exceptions are exceptions that don't need to be caught in a try - catch block.
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In tools/exceptions, I've set the option that the debugger stops when an exception is thrown. Whether it is caught or not .
How do I exclude an exception of that rule? Somewhere in my code there is a caught exception that is part of the program logic....
Started by MichaelD on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
You are not able to single out an exception thrown at... .
From here you can check/uncheck the exceptions you want.
Go to Debug > Exceptions and fold out the relevant branch .
In Visual Studio you can specify exactly which exceptions you want to halt on .
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Ask your Facebook Friends
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$598 Coach purse things-that-caught-my-eye things-that-caught-my-eye
Started by Estefana Nenez on
, 1 posts
by 1 people.
Answer Snippets (Read the full thread at pinterest):
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Is there a way to determine the exception type even know you caught the exception with a catch all?
Example:
try { SomeBigFunction(); } catch(...) { //Determine exception type here }
Started by Brian R. Bondy on
, 5 posts
by 5 people.
Answer Snippets (Read the full thread at stackoverflow):
C++ doesn't have....
Once you had the exception instance, you would have to use a type inspection algorithm .
I do not believe there is a standard way of doing this .
Doing so would at the very least require you to be able to access the current exception .
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Why are some methods in Java not caught by Catch(Exception ex) . This is code is completely failing out with an unhandled exception. (Java Version 1.4).
public static void main(String[] args) { try { //Code ... }catch (Exception ex) { System.err.println...
Started by C. Ross on
, 7 posts
by 7 people.
Answer Snippets (Read the full thread at stackoverflow):
Basically the type hierarchy is:
Object | Throwable / \ Exception Error
Only Throwables and derived classes can be thrown, so if you catch Throwable , that really will catch... .
Throwable and Error.
Because some exceptions don't derive from Exception - e.g.
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I recently made the statement to a colleague that:
NullReferenceExceptions should never be explicitly caught
I used the word never.... hmmm. I've never seen a appropriate use case myself for catching them but I wanted to check if anyone else has?
Never...
Started by Quibblesome on
, 7 posts
by 6 people.
Answer Snippets (Read the full thread at stackoverflow):
Is
NullReferenceExceptions should never be explicitly caught if you own the code which thrown the Exception
I once had.
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This may seem like a programming 101 question and I had thought I knew the answer but now find myself needing to double check. In this piece of code below, will the exception thrown in the first catch block then be caught by the general Exception catch...
Started by Rory Fitzpatrick on
, 9 posts
by 9 people.
Answer Snippets (Read the full thread at stackoverflow):
You can nest tries though throwing from within a catch block would... .
Each Exception is caught only when inside a try block.
It won't be caught by the second catch block.
The tools interface and killing the thread, rewriting bytecode, etc.) .
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API doc says never catch Throwable subclass Error which signifies abnormal behavior. Does it implies that the segregation between Error and Exception is to tell programmers that which subclass should be caught and which shouldn't ? Or there is more to...
Started by Ravi Gupta on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
The only reason to catch Throwable is if you are running external third... .
Yes, I think your analysis is correct here - you are not supposed to catch Error s because they represent runtime errors that can not be recovered from, such as OutOfMemoryError .
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In C++, what is the difference between the following examples?
Re-throw pointer :
catch (CException* ex) { throw ex; }
Simple re-throw :
catch (CException* ex) { throw; }
When the re-throw is caught, will the stack trace be different?
Started by Aidan Ryan on
, 3 posts
by 3 people.
Answer Snippets (Read the full thread at stackoverflow):
In the second case, you are just letting the original object go up in the call stack (and thus preserving ... .
It looks like you generated the exception yourself in the throw ex line .
Basically, you are throwing the object yourself in the first case .
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