Question

typedef struct
{
int value;
struct process *L;
}
semaphore;​

can any one explain me this piece of code.​

Answer 1

Answer:

struct and typedef are two very different things. The struct keyword is used to define, or to refer to, a structure type. ... A typedef , in spite of the name, does not define a new type; it merely creates a new name for an existing type.

int value means integer value.

Semaphore is simply a variable that is non-negative and shared between threads.

I don't know about rest of it.