Index for Section 3

Alphabetical listing for P

pthread_condattr_init(3)
NAME
  pthread_condattr_init - Initializes a condition variable attributes object.

LIBRARY
  DECthreads POSIX 1003.1c Library (libpthread.so)

SYNOPSIS
  #include <pthread.h>

  int pthread_condattr_init(
		    pthread_condattr_t	*attr);

STANDARDS
  Interfaces documented on this reference page conform to industry standards
  as follows:

  IEEE Std 1003.1c-1995, POSIX System Application Program Interface

PARAMETERS
  attr	    Address of the condition variable attributes object to be
	    initialized.

DESCRIPTION
  This routine initializes the condition variable attributes object specified
  by the (attr) argument with a set of default attribute values.

  When an attributes object is used to create a condition variable, the
  values of the individual attributes determine the characteristics of the
  new condition variable.  Attributes objects act as additional arguments to
  condition variable creation.	Changing individual attributes in an
  attributes object does not affect any condition variables that were
  previously created using that attributes object.

  You can use the same condition variable attributes object in successive
  calls to pthread_condattr_init(3), from any thread.  If multiple threads
  can change attributes in a shared attributes object, your program must use
  a mutex to protect the integrity of that attributes object.

  Results are undefined if this routine is called and the attr argument
  specifies a condition variable attributes object that is already
  initialized.

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.

  [ENOMEM]  Insufficient memory exists to initialize the condition variable
	    attributes object.


ERRORS
  None

RELATED INFORMATION
  Functions: pthread_condattr_destroy(3), pthread_cond_init(3)

  Manuals: Guide to DECthreads and Programmer's Guide