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PThread and More Than 1 Core
Post 302219639 by ramen_noodle on Tuesday 29th of July 2008 06:11:45 PM
07-29-2008
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LEARN ABOUT OPENSOLARIS
thr_setconcurrency
thr_getconcurrency(3C) Standard C Library Functions thr_getconcurrency(3C) NAME
thr_getconcurrency, thr_setconcurrency - get or set thread concurrency level SYNOPSIS
cc -mt [ flag... ] file...[ library... ] #include <thread.h> int thr_setconcurrency(int new_level); int thr_getconcurrency(void); DESCRIPTION
These functions are obsolete and maintained for compatibility only. The thr_setconcurrency() function updates the desired concurrency level that libthread maintains for the calling process. This value does not affect the behavior of the calling process. The thr_getconcurrency() function returns the current value for the desired concurrency level. RETURN VALUES
The thr_getconcurrency() function always returns the current value for the desired concurrency level. If successful, the thr_setconcurrency() function returns 0. Otherwise, a non-zero value is returned to indicate the error. ERRORS
The thr_setconcurrency() function will fail if: EAGAIN The specified concurrency level would cause a system resource to be exceeded. EINVAL The value for new_level is negative. ATTRIBUTES
See attributes(5) for descriptions of the following attributes: +-----------------------------+-----------------------------+ | ATTRIBUTE TYPE | ATTRIBUTE VALUE | +-----------------------------+-----------------------------+ |MT-Level |MT-Safe | +-----------------------------+-----------------------------+ SEE ALSO
thr_create(3C), attributes(5), standards(5) SunOS 5.11 11 May 1998 thr_getconcurrency(3C)