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<HTML
><HEAD
><TITLE
>pthread_join</TITLE
><META
NAME="GENERATOR"
CONTENT="Modular DocBook HTML Stylesheet Version 1.64
"></HEAD
><BODY
CLASS="REFENTRY"
><H1
><A
NAME="AEN1"
>pthread_join</A
></H1
><DIV
CLASS="REFNAMEDIV"
><A
NAME="AEN5"
></A
><H2
>Name</H2
>pthread_join -- create a thread</DIV
><DIV
CLASS="REFSYNOPSISDIV"
><A
NAME="AEN8"
></A
><H2
>Synopsis</H2
><TABLE
BORDER="0"
BGCOLOR="#E0E0E0"
WIDTH="100%"
><TR
><TD
><PRE
CLASS="SYNOPSIS"
> #include <rtl_sched.h>
int <TT
CLASS="FUNCTION"
>pthread_join</TT
>(pthread_t <TT
CLASS="PARAMETER"
><I
>thread</I
></TT
>, void <TT
CLASS="PARAMETER"
><I
>**arg</I
></TT
>);</PRE
></TD
></TR
></TABLE
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN13"
></A
><H2
>DESCRIPTION</H2
><P
>This function is an RTLinux version of standard POSIX threads function.
<TT
CLASS="FUNCTION"
>pthread_join</TT
> suspends the calling thread until the target thread terminates.
If arg is not NULL, the return value of the target thread will be (*arg) on return. If the target
thread is terminated already, <TT
CLASS="FUNCTION"
>pthread_join</TT
> returns immediately.
On a non-failure return, the target thread is guaranteed to be terminated already. There is, of course,
no upper bound on how long this call may take. </P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN18"
></A
><H2
>RETURN VALUE</H2
><P
><TT
CLASS="FUNCTION"
>pthread_join</TT
> returns 0 on success and a non-zero error code on error.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN22"
></A
><H2
>ERRORS</H2
><P
></P
><DIV
CLASS="VARIABLELIST"
><DL
><DT
>[EINVAL]</DT
><DD
><P
>The target is not a joinable thread.
</P
></DD
><DT
>[ESRCH]</DT
><DD
><P
> No such thread.</P
></DD
><DT
>[EDADLK]</DT
><DD
><P
> The target thread is the calling thread. POSIX also uses this for when the OS
detects other deadlocks, but RTLinux does not try to detect deadlock. Just write good code..</P
></DD
></DL
></DIV
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN37"
></A
><H2
>AUTHOR</H2
><P
>Victor Yodaiken (<A
HREF="mailto:support@fsmlabs.com"
TARGET="_top"
>support@fsmlabs.com</A
>)</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN41"
></A
><H2
>NOTES</H2
><P
><TT
CLASS="FUNCTION"
>pthread_join</TT
> is not all that useful at this time. Buttenhof's book on thread programming essentially suggests that you never use it. In future plans, we hope to use it for fault tolerance support.</P
></DIV
><DIV
CLASS="REFSECT1"
><A
NAME="AEN45"
></A
><H2
>SEE ALSO</H2
><A
HREF="../susv2/xsh/pthread_join.html"
TARGET="_top"
>UNIX spec pthread_join(3)</A
>, <A
HREF="pthread_make_periodic_np.3.html"
TARGET="_top"
>pthread_make_periodic_np(3)</A
><P
>2001 FSMLabs Inc.</P
><P
>All rights reserved.</P
></DIV
></BODY
></HTML
>
|
