calling pthread_self (on ubuntu), expensive? Post: 302427077

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pthread_self

pthread_self(3) 					     Library Functions Manual						   pthread_self(3)

NAME

       pthread_self - Obtains the identifier of the calling thread.

LIBRARY

       DECthreads POSIX 1003.1c Library (libpthread.so)

SYNOPSIS

       #include <pthread.h>

       pthread_t   pthread_self(void);

STANDARDS

       Interfaces documented on this reference page conform to industry standards as follows:

       IEEE Std 1003.1c-1995, POSIX System Application Program Interface

PARAMETERS

       None

DESCRIPTION

       This  routine  returns the address of the calling thread's own thread identifier. For example, you can use this thread object to obtain the
       calling thread's own sequence number. To do so, pass the return value from this routine in a call to the pthread_getsequence_np(3) routine,
       as follows:

	  unsigned long     this_thread_nbr;
	   .
	   .
	   .
	  this_thread_nbr = pthread_getsequence_np( pthread_self( ) );
	   .
	   .
	   .

       The return value from the pthread_self(3) routine becomes meaningless after the calling thread is destroyed.

RETURN VALUES

       Returns the address of the calling thread's own thread object.

ERRORS

       None

RELATED INFORMATION

       Functions:   pthread_cancel(3),	 pthread_create(3),   pthread_detach(3),   pthread_exit(3),   pthread_getsequence_np(3),  pthread_join(3),
       pthread_kill(3), pthread_sigmask(3)

       Manuals: Guide to DECthreads and Programmer's Guide

       delim off

																   pthread_self(3)