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pthread_rwlock_setname_np(3)
NAME
  pthread_rwlock_setname_np - Changes the object name in a read-write lock
  object.

LIBRARY
  DECthreads POSIX 1003.1c Library (libpthread.so)

SYNOPSIS
  #include <pthread.h>

  int	pthread_rwlock_setname_np(
			pthread_rwlock_t	  *rwlock,
			const char		  *name,
			void			  *mbz);

PARAMETERS
  rwlock    Read-write lock object whose object name is to be changed.

  name	    Object name value to copy into the read-write lock object.

  mbz	    Reserved for future use. The value must be zero (0).

DESCRIPTION
  This routine changes the object name in the read-write lock object
  specified by rwlock to the value specified by name. To set a new read-write
  lock object's object name, call this routine immediately after initializing
  the read-write lock object.

  The object name is a C language string and provides an identifier that is
  meaningful to a person debugging a DECthreads-based multithreaded
  application. The maximum number of characters in the object name is 31.

RETURN VALUES
  If an error condition occurs, this routine returns an integer value
  indicating the type of error.	 Possible return values are as follows:

  0	    Successful completion.

  [EINVAL]  The value specified by rwlock is invalid, or the length in
	    characters of name exceeds 31.

  [ENOMEM]  Insufficient memory exists to create a copy of the object name
	    string.




ERRORS
  None



RELATED INFORMATION
  Functions: pthread_rwlock_getname_np(3), pthread_rwlock_init(3)

  Manuals: Guide to DECthreads and Programmer's Guide

Index for Section 3

Alphabetical listing for P

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