10 More Discussions You Might Find Interesting
1. Programming
Hi,
Suppose I have a function that accesses and increments a global variable . This function is run as part of thread. One locks mutex in the function and unlocks it after the processing is done. Is there any alternative way? Thanks in advance. (1 Reply)
Discussion started by: sanjayc
1 Replies
2. UNIX for Dummies Questions & Answers
This question might be silly but its confusing me a bit:
What is the difference between handle to the thread HANDLE and thread identifier pthread_t?
---------- Post updated at 01:52 PM ---------- Previous update was at 01:48 PM ----------
Sorry I saw details and HANDLE is in windows and... (0 Replies)
Discussion started by: rupeshkp728
0 Replies
3. UNIX for Advanced & Expert Users
Hi all,
I have to test some user priviliges. The goal is to be sure that an unauthorized user can't restart some modules (ssh, mysql etc...).
I'm trying to automate it with a shell script but in same cases I got the syslog broadcast message.
Is there any way to simply get a return code... (3 Replies)
Discussion started by: Dedalus
3 Replies
4. Red Hat
Hello all,
If anyone has time, I have a few questions:
How do I do the following in Linux. We are using Red Hat and Oracle Enterprise Linux, which is based on Red Hat too.
1. How to lock the account after a few (like 3) invalid password attempts?
2. How do you lock a screen after 30... (1 Reply)
Discussion started by: nstarz
1 Replies
5. 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
6. 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
7. 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
8. 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
9. UNIX for Dummies Questions & Answers
how can I lock my keyboard while I'm away from the computer without using lock command. What other commands gives me the option to lock keyboard device?
thanks (7 Replies)
Discussion started by: dianayun
7 Replies
10. UNIX for Dummies Questions & Answers
Can anyone explain me what mutexes are in
multithreading environment? (2 Replies)
Discussion started by: sagar
2 Replies