pthread_setfp_np.3

rtlinux-3.1源代码

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.TH "pthread_setfp_np" "3" 
.SH "NAME" 
pthread_setfp_np \(em allow use of floating-point operations in a thread. 
.SH "SYNOPSIS" 
.PP 
.nf 
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#include <rtl_sched.h> 
 
int \fBpthread_setfp_np\fP(pthread_t \fBthread\fR, int \fBflag\fR); 
.fi 
.SH "DESCRIPTION" 
.PP 
This function is a non-portable Realtime Linux extension. 
\fBpthread_setfp_np\fP allows or disallows the use of 
floating-point arithmetic operations in a realtime thread. 
\fBflag\fR is zero to disallow floating-point operations, or 
non-zero to allow them.   
.SH "RETURN VALUE" 
.PP 
\fBpthread_setfp_np\fP returns 0 on success and a non-zero error code on error. 
.SH "NOTES" 
.PP 
This function may not be used on threads assigned to a CPU other than the current. 
Use of \fBpthread_attr_setfp_np\fP is recommended. 
.SH "ERRORS" 
.IP "EINVAL" 10 
\fBpthread_setfp_np\fP was called on a thread running on a different CPU. 
.SH "NOTES" 
.PP 
By default, floating point operations are disallowed in RT-threads. 
.SH "AUTHOR" 
.PP 
Michael Barabanov (\[e-mail] (link to URL mailto:[e-mail]) \fR) 
.SH "SEE ALSO" 
\fIUNIX spec pthread_create(3) (link to URL ../susv2/xsh/pthread_create.html) \fR 
.PP 
\(co2001 FSMLabs Inc. 
.PP 
All rights reserved. 
...\" created by instant / docbook-to-man, Thu 26 Jul 2001, 11:19