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95 lines
3.9 KiB
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<TITLE>PTHREAD_CREATE(3) manual page</TITLE>
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<H4>POSIX Threads for Windows – REFERENCE - <A HREF="http://sources.redhat.com/pthreads-win32">Pthreads-w32</A></H4>
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<P><A HREF="index.html">Reference Index</A></P>
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<P><A HREF="#toc">Table of Contents</A></P>
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<H2><A HREF="#toc0" NAME="sect0">Name</A></H2>
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<P>pthread_create - create a new thread
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</P>
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<H2><A HREF="#toc1" NAME="sect1">Synopsis</A></H2>
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<P><B>#include <pthread.h></B>
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</P>
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<P><B>int pthread_create(pthread_t * </B><I>thread</I><B>,
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pthread_attr_t * </B><I>attr</I><B>, void * (*</B><I>start_routine</I><B>)(void
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*), void * </B><I>arg</I><B>);</B>
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</P>
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<H2><A HREF="#toc2" NAME="sect2">Description</A></H2>
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<P><B>pthread_create</B> creates a new thread of control that
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executes concurrently with the calling thread. The new thread applies
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the function <I>start_routine</I> passing it <I>arg</I> as first
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argument. The new thread terminates either explicitly, by calling
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<A HREF="pthread_exit.html"><B>pthread_exit</B>(3)</A> , or
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implicitly, by returning from the <I>start_routine</I> function. The
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latter case is equivalent to calling <A HREF="pthread_exit.html"><B>pthread_exit</B>(3)</A>
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with the result returned by <I>start_routine</I> as exit code.
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</P>
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<P>The initial signal state of the new thread is inherited from it's
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creating thread and there are no pending signals. <B>Pthreads-w32</B>
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does not yet implement signals.</P>
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<P>The <I>attr</I> argument specifies thread attributes to be applied
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to the new thread. See <A HREF="pthread_attr_init.html"><B>pthread_attr_init</B>(3)</A>
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for a complete list of thread attributes. The <I>attr</I> argument
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can also be <B>NULL</B>, in which case default attributes are used:
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the created thread is joinable (not detached) and has default (non
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real-time) scheduling policy.
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</P>
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<H2><A HREF="#toc3" NAME="sect3">Return Value</A></H2>
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<P>On success, the identifier of the newly created thread is stored
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in the location pointed by the <I>thread</I> argument, and a 0 is
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returned. On error, a non-zero error code is returned.
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</P>
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<H2><A HREF="#toc4" NAME="sect4">Errors</A></H2>
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<DL>
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<DT><B>EAGAIN</B>
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</DT><DL>
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<DL>
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<DT>
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Not enough system resources to create a process for the new
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thread, or<BR>more than <B>PTHREAD_THREADS_MAX</B> threads are
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already active.
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</DT></DL>
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</DL>
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</DL>
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<H2>
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<A HREF="#toc5" NAME="sect5">Author</A></H2>
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<P>Xavier Leroy <Xavier.Leroy@inria.fr>
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</P>
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<P>Modified by Ross Johnson for use with <A HREF="http://sources.redhat.com/pthreads-win32">Pthreads-w32</A>.</P>
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<H2><A HREF="#toc6" NAME="sect6">See Also</A></H2>
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<P><A HREF="pthread_exit.html"><B>pthread_exit</B>(3)</A> ,
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<A HREF="pthread_join.html"><B>pthread_join</B>(3)</A> ,
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<A HREF="pthread_detach.html"><B>pthread_detach</B>(3)</A> ,
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<A HREF="pthread_attr_init.html"><B>pthread_attr_init</B>(3)</A> .
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</P>
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<HR>
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<P><A NAME="toc"></A><B>Table of Contents</B></P>
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<UL>
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<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect0" NAME="toc0">Name</A>
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</P>
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<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect1" NAME="toc1">Synopsis</A>
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</P>
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<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect2" NAME="toc2">Description</A>
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</P>
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<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect3" NAME="toc3">Return
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Value</A>
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</P>
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<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect4" NAME="toc4">Errors</A>
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</P>
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<LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect5" NAME="toc5">Author</A>
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</P>
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<LI><P><A HREF="#sect6" NAME="toc6">See Also</A>
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</P>
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</UL>
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