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+'\" et
+.TH PTHREAD_SPIN_LOCK "3P" 2013 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.SH PROLOG
+This manual page is part of the POSIX Programmer's Manual.
+The Linux implementation of this interface may differ (consult
+the corresponding Linux manual page for details of Linux behavior),
+or the interface may not be implemented on Linux.
+
+.SH NAME
+pthread_spin_lock,
+pthread_spin_trylock
+\(em lock a spin lock object
+.SH SYNOPSIS
+.LP
+.nf
+#include <pthread.h>
+.P
+int pthread_spin_lock(pthread_spinlock_t *\fIlock\fP);
+int pthread_spin_trylock(pthread_spinlock_t *\fIlock\fP);
+.fi
+.SH DESCRIPTION
+The
+\fIpthread_spin_lock\fR()
+function shall lock the spin lock referenced by
+.IR lock .
+The calling thread shall acquire the lock if it is not held by another
+thread. Otherwise, the thread shall spin (that is, shall not return
+from the
+\fIpthread_spin_lock\fR()
+call) until the lock becomes available. The results are undefined if
+the calling thread holds the lock at the time the call is made. The
+\fIpthread_spin_trylock\fR()
+function shall lock the spin lock referenced by
+.IR lock
+if it is not held by any thread. Otherwise, the function shall fail.
+.P
+The results are undefined if any of these functions is called with an
+uninitialized spin lock.
+.SH "RETURN VALUE"
+Upon successful completion, these functions shall return zero;
+otherwise, an error number shall be returned to indicate the error.
+.SH ERRORS
+The
+\fIpthread_spin_lock\fR()
+function may fail if:
+.TP
+.BR EDEADLK
+A deadlock condition was detected.
+.P
+The
+\fIpthread_spin_trylock\fR()
+function shall fail if:
+.TP
+.BR EBUSY
+A thread currently holds the lock.
+.P
+These functions shall not return an error code of
+.BR [EINTR] .
+.LP
+.IR "The following sections are informative."
+.SH EXAMPLES
+None.
+.SH "APPLICATION USAGE"
+Applications using this function may be subject to priority inversion,
+as discussed in the Base Definitions volume of POSIX.1\(hy2008,
+.IR "Section 3.287" ", " "Priority Inversion".
+.SH RATIONALE
+If an implementation detects that the value specified by the
+.IR lock
+argument to
+\fIpthread_spin_lock\fR()
+or
+\fIpthread_spin_trylock\fR()
+does not refer to an initialized spin lock object, it is recommended
+that the function should fail and report an
+.BR [EINVAL] 
+error.
+.P
+If an implementation detects that the value specified by the
+.IR lock
+argument to
+\fIpthread_spin_lock\fR()
+refers to a spin lock object for which the calling thread already
+holds the lock, it is recommended that the function should fail
+and report an
+.BR [EDEADLK] 
+error.
+.SH "FUTURE DIRECTIONS"
+None.
+.SH "SEE ALSO"
+.IR "\fIpthread_spin_destroy\fR\^(\|)",
+.IR "\fIpthread_spin_unlock\fR\^(\|)"
+.P
+The Base Definitions volume of POSIX.1\(hy2008,
+.IR "Section 3.287" ", " "Priority Inversion",
+.IR "Section 4.11" ", " "Memory Synchronization",
+.IR "\fB<pthread.h>\fP"
+.SH COPYRIGHT
+Portions of this text are reprinted and reproduced in electronic form
+from IEEE Std 1003.1, 2013 Edition, Standard for Information Technology
+-- Portable Operating System Interface (POSIX), The Open Group Base
+Specifications Issue 7, Copyright (C) 2013 by the Institute of
+Electrical and Electronics Engineers, Inc and The Open Group.
+(This is POSIX.1-2008 with the 2013 Technical Corrigendum 1 applied.) 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
+http://www.unix.org/online.html .
+
+Any typographical or formatting errors that appear
+in this page are most likely
+to have been introduced during the conversion of the source files to
+man page format. To report such errors, see
+https://www.kernel.org/doc/man-pages/reporting_bugs.html .