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

SYNOPSIS
  #include <tis.h>

  int tis_rwlock_init(
	  tis_rwlock_t *lock );

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

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.

  NOTE: The tis read-write lock has no relationship to the Single UNIX
  Specification, Version 2 (SUSV2, or UNIX98) read-write lock routines
  (pthread_rwlock_init(3), etc). The tis_rwlock_t type, in particular, cannot
  be used with the pthread read-write lock functions; nor can a
  pthread_rwlock_t type be used with the tis read-write lock functions.

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 not a valid read-write lock.

  [ENOMEM]
      Insufficient memory exists to initialize lock.

ERRORS
  None

SEE ALSO
  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

Index for Section 3

Alphabetical listing for T

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