man/man3c/thr_getconcurrency.3c

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 thr_getconcurrency 3C "11 May 1998" "SunOS 5.11" "Standard C Library Functions"
 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 TYPEATTRIBUTE VALUE
MT-LevelMT-Safe


 SEE ALSO

thr_create(3C), attributes(5), standards(5)