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tis_rwlock_init(3)
NAME
  tis_rwlock_init - Initializes a read-write lock object.

LIBRARY
  Standard C Library (libc.so, libc.a)

SYNOPSIS
  #include <tis.h>

  int	tis_rwlock_init(
			 tis_rwlock_t	*lock);

STANDARDS
  None

PARAMETERS
  lock	    Address of a read-write lock object.

DESCRIPTION
  This routine initializes a read-write lock object.  The routine initializes
  the tis_rwlock_t structure that holds the object's lock states.

  To destroy a read-write lock object, call the tis_rwlock_destroy(3)
  routine.

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 lock is invalid.

  [ENOMEM]  Insufficient memory exists to initialize lock.

ERRORS
  None

RELATED INFORMATION
  Functions: tis_read_lock(3), tis_read_trylock(3), tis_read_unlock(3),
  tis_rwlock_destroy(3), tis_write_lock(3), tis_write_trylock(3),
  tis_write_unlock(3)


  Manuals: Guide to DECthreads and Programmer's Guide