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tis_read_unlock(3)
NAME
  tis_read_unlock - Unlocks a read-write lock that was acquired for read
  access.

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

SYNOPSIS
  #include <tis.h>

  int	tis_read_lock(
			 tis_rwlock_t	*lock);

STANDARDS
  None

PARAMETERS
  lock	    Address of the read-write lock to be unlocked.

DESCRIPTION
  This routine unlocks a read-write lock that was acquired for read access.
  If there are no other holders of the lock for read access and another
  thread is waiting to acquire the lock for write access, that lock
  acquisition is granted.

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.

ERRORS
  None

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

  Manuals: Guide to DECthreads and Programmer's Guide