Threading in c programming

A thread is a single flow of control within a program.Thread is very much similar to a process.In fact thread is also called light-weight process.

pthread_create : Create a new Thread

Syntax: int pthread_create(pthread_t *thread,const pthread_attr_t *attr,void *(*start  routine) (void*),void *arg)

   

Description:

    The pthread_create() function starts a new thread in the calling process.The new thread  stars execution by invoking start routine();

    arg is passed as the sole argument of start routine().

Return Value:

    On success pthread_create() return 0,On error it returns an error.

How to run programe of Thread:

                         gcc filename.c -o f1 -lpthread (for execution of programe)

                        ./ f1                 (to run programe)

                      where f1 is executable file name

Note:    we can also run this programe as

               gcc filename.c -lpthread(for execution)

            ./a.out(to run programe)

Example: