0
1) An environment that allows more than one program to access the same set of variable.
2) The ability of a program to "sleep" until it can have (access) a varible.
3) The ability of a program to block other programs from having (accessing) a variable.
Dead Lock example:
Program GoodGosh and GoshDarn both access variables A and B by "Locking" the variables, doing some processing, and then releasing the variables. Both variables have to be obtained and locked before further processing and unlocking can occur.
While processing, Program GoodGosh acquries a lock on variable A and then attempts to acqure a lock on Varable B. Before GoodGosh can acquire variable B, Program GoshDarn acqures a lock on variable B. GoodGosh want B and owns A. GoshDarn owns A and wants B. Neither can process further until the other releases a variable. Deadlock now exists.
Note: To prevent deadlocks, all modules/programs that access the same set of variables should always acquire the variables in the same order.
Still curious? Ask our experts.
Chat with our AI personalities
Rafa
Rene
BeauAdd your answer:
Earn +20 pts
When one variable increase while the other variable deacreases is a statement indicating an inverse relationship?
No. That condition is necessary but not sufficient.No. That condition is necessary but not sufficient.No. That condition is necessary but not sufficient.No. That condition is necessary but not sufficient.
What are the different method for handling deadlock?
deadlock handling by 2phase protocol
What is false deadlock?
the coordinator conculde incorrectly that a deadlock exist and kills some process --------------------------- Detecting a non existent deadlock in distributed system has been referred as false deadlock and it may occur due to communication delay.. ---->Ashok Paranjothi
What is deadlock on the x factor?
a tie
What condition is probably the most necessary for a monarch to gain power?
no
