10 More Discussions You Might Find Interesting
1. Programming
I am attempting to write a program with multiple POSIX threads. I want to ensure all threads are released at the same time. I am (trying to) use a semaphore to accomplish this.
Without too much irrelevant information, I declare my semaphore with 0 of 25 resources available. Is there a way... (7 Replies)
Discussion started by: snowbarr
7 Replies
2. Programming
Hi All,
To avoid race condition, instead of using mutex, semaphore, spinlock etc.... Is there any other mechanism by which we can avoid race condition in an multi-threading environment.
-Thanks (6 Replies)
Discussion started by: rvan
6 Replies
3. Programming
Hello,
I have got some issue with the struct variable with passed arguments
the variable in the sturct is only recognize the last value their assigned to
I'm pretty confused why the mutex didn't work out
here is my program:
#include<stdio.h>
#include<pthread.h>
pthread_mutex_t lock... (3 Replies)
Discussion started by: michael23
3 Replies
4. Programming
Hi all,
I have a scenario where I need to use the mutex locks. The mutex locks are working fine, but sometimes I am getting into the dead lock situation.
Below is the summary of my code :
MUTEX LOCK
performTask();
MUTEX UNLOCK.
In some cases I get into the situation where... (2 Replies)
Discussion started by: cjjoy
2 Replies
5. Programming
I am trying to use mutex in my multi-tread project, but they don't seem to work.
I have created a simple demonstration of the problem. This is NOT how I would use a mutex, only a demonstration of the problem:
#include <stdio.h>
#include <pthread.h>
int main()
{
int val;
... (3 Replies)
Discussion started by: ChrisWilliams
3 Replies
6. Shell Programming and Scripting
Hello Everyone,
I just joined this forum and this is my first post.
I would like to know how can I impliment basic read/write locks in perl. I have a database (file) which can be accessed simultaneously but has to be locked while writing.
If there is no such support in perl, my next... (6 Replies)
Discussion started by: superuser84
6 Replies
7. UNIX for Dummies Questions & Answers
can u tell me what is the exact difference b/w mutex and semaphore
and what is the diff b/w counting semaphore and binary semaphore
amit (1 Reply)
Discussion started by: amitpansuria
1 Replies
8. Programming
Hi, I have two tasks 'Read' and 'Write' which reads and writes on a file "abc.txt" respectively.
Now I need to restrict the Write operation on the file while Read is going on, But can allow two Reads at a time.
ie. two Reads can happen simultaneously, but Write can't happen at Read is going on.
... (3 Replies)
Discussion started by: satheeshalle
3 Replies
9. UNIX for Dummies Questions & Answers
Can anyone explain me what mutexes are in
multithreading environment? (2 Replies)
Discussion started by: sagar
2 Replies
10. Programming
Hi all,
I am working in a UNIX/C environment. I would like to understand more about MUTEX and Threads. Can someone explain me these
concepts and how they are related.
Vijay (2 Replies)
Discussion started by: vthasan
2 Replies