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tis_read_unlock(3)


NAME

  tis_read_unlock - Unlocks a read-write lock that was acquired for read
  access


SYNOPSIS

  #include <tis.h>

  int tis_read_lock(
	  tis_rwlock_t *lock );


LIBRARY

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


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


SEE ALSO

  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

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