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pthread_getconcurrency(3)
NAME
  pthread_getconcurrency - Obtains the value of the concurrency level global
  variable for this process

SYNOPSIS
  #include <pthread.h>

  int pthread_getconcurrency(
	  void );

LIBRARY
  DECthreads POSIX 1003.1c Library (libpthread.so)

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

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

PARAMETERS
  None

DESCRIPTION
  This routine obtains and returns the value of the "concurrency level"
  global setting for the calling thread's process. Because DECthreads
  automatically manages the concurrency of all threads in a multithreaded
  process, DECthreads ignores this concurrency level value.

  The concurrency level value has no effect on the behavior of a
  multithreaded program that uses DECthreads. This routine is provided for
  Single UNIX Specification, Version 2, source code compatibility and has no
  other effect when called.

  The initial concurrency level is zero (0), indicating that DECthreads
  controls the concurrency level.

  The concurrency level can be set using the pthread_setconcurrency(3)
  routine.

RETURN VALUES
  This routine always returns the value of this process's concurrency level
  global variable. If this process has never called the
  pthread_setconcurrency(3) routine, this routine returns zero (0).

ERRORS
  None

SEE ALSO
  Functions: pthread_setconcurrency(3)

  Manuals: Guide to DECthreads and Programmer's Guide

Index for Section 3

Alphabetical listing for P

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