We have discussed the concept of P0 and V0 operations in de lectures. Linux/Unix do not have P0 and V0 as the API. When you write a C C++ program under Linux/Unix, what API can you use to have the same functionality as P0 and V0?
Expert Answer
When we writing the c and c++ programs in Linux/Unix based systems we can use down() and up() for the semaphore operations.
Semaphore Opera is nothing but p() and v() operations in windows systems. These semaphore Operations is used when the programs running using the memory. Generally a semaphore is a value of designated place of memory for running the program based on this value the programs use the resources of the system.
In windows we have p() and v() for the semaphore Operations.
p() equalent in linux is down()
v() equalent in linux is up()