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pthread_rwlock_getname_np(3)


NAME

  pthread_rwlock_getname_np - Obtain the object name from a read-write lock
  object


SYNOPSIS

  #include <pthread.h>

  int pthread_rwlock_getname_np(
	  pthread_rwlock_t *rwlock,
	  char *name,
	  size_t len );


LIBRARY

  DECthreads POSIX 1003.1c Library (libpthread.so)


PARAMETERS

  rwlock
      Address of the read-write lock object whose object name is to be
      obtained.

  name
      Location to store the obtained object name.

  len Length in bytes of buffer at the location specified by name.


DESCRIPTION

  This routine copies the object name from the read-write lock object
  specified by rwlock to the buffer at the location name.  Before calling
  this routine, your program must allocate the buffer indicated by name.

  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.

  If the specified read-write lock object has not been previously set with an
  object name, this routine copies a C language null string into the buffer
  at location name.


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.


ERRORS

  None


SEE ALSO

  Functions: pthread_rwlock_setname_np(3)

  Manuals: Guide to DECthreads and Programmer's Guide

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