What is atomic function / atomic variable ?
- 1 Answers
- 11148 Views
- Broadcom, I also Faced
- E-Mail Answers
Answer / veerasena
atomic variables are the variables which can only be
manipulated atomically using atomic APIs. Linux declares
variable as atomic by using the type atomic_t. Basically
used a way to achieve synchronization.
an atomic operation is one which cannot be (or is not)
interrupted by concurrent operations and cannot be broken up
into smaller parts that could be performed by different
processors.
Atomic function is a function which is executed to
completion without interruption. Atomic function can also be
seen as a small critical section which is executed without
interruption, locking.
| Is This Answer Correct ? | 31 Yes | 2 No |
I would like to know whether Simado and Setu products are they EPBX or not ?
How to create secured appeche web sever ?
what is iptabe on redhat linux?
Explain process management system calls in linux?
what is cups and how to configure?
how to configure http server on red hat linux4.0?
1. Where the History file can be located? 2. How will you harden the server? 3. Diff between Raid 1 and Raid 5? 4. What is the largest disk size can be used in LVM? 5. How will you remove a PV from lvm without any data loss? 6. What is the diff between ext3 and ext2 File system? 7. How we can use resize2fs, what is the purpose? 8. What is the purpose of LVM? Why it is used? 9. If the FS is in read-only mode, so we cannot create any file. How will you fix it? 10. How to create swap partition after OS installation? 11. What is the diff between ssh and telnet? 12. How to find out the dependency required for a package?
what is the difference between user APIs and kernel system calls ?
what is the diff b/w MUTEX and semaphore?
what is sudo on linux?
what is segmentation fault?
if one of the critical section code (linked list) is under ISR & another one in kernel thread ? How you will synchronize for this critical section code ?
Linux Commands 
