Answer Posted / jethva_trupti
A semaphore, a new variable type.
A semaphore could have the value 0,indicating that no
wakeups were saved, or some positive values if one or more
wakeups were pending.
a semaphore s is an integer variable that apart from
initialization, is accesssed only through two standard
atomic operations, wait and signal. these operations were
orignially termed p(for wait to test) and v(for signal to
increment).
The classical defination of wait in psedocode is
wait(s)
{
while(s<=0)
;// no-op
s--;
}
The classical defination of signal in psedocode is
signal(s)
{
s++;
}
Modification to the integer value of smaphore in wait and
signal operations must be executed individually.
that is, when one process modifies the semaphore value no
other process can simultaneously modifiy that same
semaphore value.
| Is This Answer Correct ? | 68 Yes | 11 No |
Post New Answer View All Answers
How do you reset the bios?
What are positional parameters?
Do cores matter for gaming?
What is the most powerful server in the world?
Which processor is better amd or intel?
How do I clean up and speed up my laptop?
What is startup repair on my computer?
Which is your favorite editor, shell, programming shell and why?
How do you reset your computer?
How much memory do I need on my laptop?
Is more ram better for streaming?
How do I free up disk space?
Can I factory reset my laptop without a recovery disc?
What is concurrency go?
what is gr-edge edit?