Prerequisite : Multithreading in C
Syntax :- pthread_t pthread_self(void);
The pthread_self() function returns the ID of the thread in which it is invoked.
// C program to demonstrate working of pthread_self() #include <stdio.h> #include <stdlib.h> #include <pthread.h> void * calls( void * ptr)
{ // using pthread_self() get current thread id
printf ( "In function \nthread id = %d\n" , pthread_self());
pthread_exit(NULL);
return NULL;
} int main()
{ pthread_t thread ; // declare thread
pthread_create(& thread , NULL, calls, NULL);
printf ( "In main \nthread id = %d\n" , thread );
pthread_join( thread , NULL);
return 0;
} |
Output:
In function thread id = 1 In main thread id = 1
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