summaryrefslogtreecommitdiff
path: root/manual/pthread_spin_unlock.html
diff options
context:
space:
mode:
authorrpj <rpj>2005-05-06 07:27:10 +0000
committerrpj <rpj>2005-05-06 07:27:10 +0000
commit7523c7c4d75652f67cd31cb123e1268790394c8b (patch)
tree0920ebf089ccb971e0878542f85486171a541a8a /manual/pthread_spin_unlock.html
parentcf42850c77554311e62d3780f6a36cbc38e5e002 (diff)
''
Diffstat (limited to 'manual/pthread_spin_unlock.html')
-rw-r--r--manual/pthread_spin_unlock.html124
1 files changed, 124 insertions, 0 deletions
diff --git a/manual/pthread_spin_unlock.html b/manual/pthread_spin_unlock.html
new file mode 100644
index 0000000..2215700
--- /dev/null
+++ b/manual/pthread_spin_unlock.html
@@ -0,0 +1,124 @@
+<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
+<HTML>
+<HEAD>
+ <META HTTP-EQUIV="CONTENT-TYPE" CONTENT="text/html; charset=utf-8">
+ <TITLE>&quot;PTHREAD_SPIN_UNLOCK&quot;(P) manual page</TITLE>
+ <META NAME="GENERATOR" CONTENT="OpenOffice.org 1.1.3 (Linux)">
+ <META NAME="CREATED" CONTENT="20050505;12401400">
+ <META NAME="CHANGED" CONTENT="20050505;12462400">
+ <!-- manual page source format generated by PolyglotMan v3.2, -->
+ <!-- available at http://polyglotman.sourceforge.net/ -->
+</HEAD>
+<BODY LANG="en-GB" BGCOLOR="#ffffff" DIR="LTR">
+<H4>POSIX Threads for Windows – REFERENCE - <A HREF="http://sources.redhat.com/pthreads-win32">Pthreads-w32</A></H4>
+<P><A HREF="index.html">Reference Index</A></P>
+<P><A HREF="#toc">Table of Contents</A></P>
+<H2><A HREF="#toc0" NAME="sect0">Name</A></H2>
+<P>pthread_spin_unlock - unlock a spin lock object (<B>ADVANCED
+REALTIME THREADS</B>)
+</P>
+<H2><A HREF="#toc1" NAME="sect1">Synopsis</A></H2>
+<P><B>#include &lt;pthread.h&gt; </B>
+</P>
+<P><B>int pthread_spin_unlock(pthread_spinlock_t *</B><I>lock</I><B>);
+</B>
+</P>
+<H2><A HREF="#toc2" NAME="sect2">Description</A></H2>
+<P>The <B>pthread_spin_unlock</B> function shall release the spin
+lock referenced by <I>lock</I> which was locked via the
+<A HREF="pthread_spin_lock.html"><B>pthread_spin_lock</B>(3)</A> or
+<A HREF="pthread_spin_lock.html"><B>pthread_spin_trylock</B>(3)</A>
+functions. If there are threads spinning on the lock when
+<B>pthread_spin_unlock</B> is called, the lock becomes available and
+an unspecified spinning thread shall acquire the lock.
+</P>
+<P><B>Pthreads-w32</B> does not check ownership of the lock and it is
+therefore possible for a thread other than the locker to unlock the
+spin lock. This is not a feature that should be exploited.</P>
+<P>The results are undefined if this function is called with an
+uninitialized thread spin lock.
+</P>
+<H2><A HREF="#toc3" NAME="sect3">Return Value</A></H2>
+<P>Upon successful completion, the <B>pthread_spin_unlock</B>
+function shall return zero; otherwise, an error number shall be
+returned to indicate the error.
+</P>
+<H2><A HREF="#toc4" NAME="sect4">Errors</A></H2>
+<P>The <B>pthread_spin_unlock</B> function may fail if:
+</P>
+<DL>
+ <DT><B>EINVAL</B>
+ </DT><DD>
+ An invalid argument was specified.
+ </DD><DD STYLE="margin-left: -2cm">
+ <BR>
+ </DD></DL>
+<P>
+This function shall not return an error code of [EINTR].
+</P>
+<P><I>The following sections are informative.</I>
+</P>
+<H2><A HREF="#toc5" NAME="sect5">Examples</A></H2>
+<P>None.
+</P>
+<H2><A HREF="#toc6" NAME="sect6">Application Usage</A></H2>
+<P><B>Pthreads-w32</B> does not check ownership of the lock and it is
+therefore possible for a thread other than the locker to unlock the
+spin lock. This is not a feature that should be exploited.</P>
+<H2><A HREF="#toc7" NAME="sect7">Rationale</A></H2>
+<P>None.
+</P>
+<H2><A HREF="#toc8" NAME="sect8">Future Directions</A></H2>
+<P>None.
+</P>
+<H2><A HREF="#toc9" NAME="sect9">See Also</A></H2>
+<P><A HREF="pthread_spin_init.html"><B>pthread_spin_destroy</B>(3)</A>
+<B>,</B> <A HREF="pthread_spin_lock.html"><B>pthread_spin_lock</B>(3)</A>
+<B>,</B> the Base Definitions volume of IEEE&nbsp;Std&nbsp;1003.1-2001,
+<I>&lt;pthread.h&gt;</I>
+</P>
+<H2><A HREF="#toc10" NAME="sect10">Copyright</A></H2>
+<P>Portions of this text are reprinted and reproduced in electronic
+form from IEEE Std 1003.1, 2003 Edition, Standard for Information
+Technology -- Portable Operating System Interface (POSIX), The Open
+Group Base Specifications Issue 6, Copyright (C) 2001-2003 by the
+Institute of Electrical and Electronics Engineers, Inc and The Open
+Group. In the event of any discrepancy between this version and the
+original IEEE and The Open Group Standard, the original IEEE and The
+Open Group Standard is the referee document. The original Standard
+can be obtained online at <A HREF="http://www.opengroup.org/unix/online.html">http://www.opengroup.org/unix/online.html</A>
+.
+</P>
+<P>Modified by Ross Johnson for use with <A HREF="http://sources.redhat.com/pthreads-win32">Pthreads-w32</A>.</P>
+<HR>
+<P><A NAME="toc"></A><B>Table of Contents</B></P>
+<UL>
+ <LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect0" NAME="toc0">Name</A>
+ </P>
+ <LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect1" NAME="toc1">Synopsis</A>
+ </P>
+ <LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect2" NAME="toc2">Description</A>
+ </P>
+ <LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect3" NAME="toc3">Return
+ Value</A>
+ </P>
+ <LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect4" NAME="toc4">Errors</A>
+ </P>
+ <LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect5" NAME="toc5">Examples</A>
+ </P>
+ <LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect6" NAME="toc6">Application
+ Usage</A>
+ </P>
+ <LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect7" NAME="toc7">Rationale</A>
+ </P>
+ <LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect8" NAME="toc8">Future
+ Directions</A>
+ </P>
+ <LI><P STYLE="margin-bottom: 0cm"><A HREF="#sect9" NAME="toc9">See
+ Also</A>
+ </P>
+ <LI><P><A HREF="#sect10" NAME="toc10">Copyright</A>
+ </P>
+</UL>
+</BODY>
+</HTML>