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.br pthread_spin_unlock () |
on a lock that is not held by the caller results in undefined behavior. |
.sh return value |
on success, these functions return zero. |
on failure, they return an error number. |
.sh errors |
.br pthread_spin_lock () |
may fail with the following errors: |
.tp |
.b edeadlock |
.\" not detected in glibc |
the system detected a deadlock condition. |
.pp |
.br pthread_spin_trylock () |
fails with the following errors: |
.tp |
.b ebusy |
the spin lock is currently locked by another thread. |
.sh versions |
these functions first appeared in glibc in version 2.2. |
.sh conforming to |
posix.1-2001. |
.sh notes |
applying any of the functions described on this page to |
an uninitialized spin lock results in undefined behavior. |
.pp |
carefully read notes in |
.br pthread_spin_init (3). |
.sh see also |
.ad l |
.nh |
.\" fixme . .br pthread_mutex_lock (3), |
.br pthread_spin_destroy (3), |
.br pthread_spin_init (3), |
.br pthreads (7) |
.sh colophon |
this page is part of release 5.13 of the linux |
.i man-pages |
project. |
a description of the project, |
information about reporting bugs, |
and the latest version of this page, |
can be found at |
\%https://www.kernel.org/doc/man\-pages/. |
.so man3/stailq.3 |
.so man2/process_vm_readv.2 |
.so man3/ctime.3 |
.\" copyright (c) 1992 drew eckhardt ([email protected]), march 28, 1992 |
.\" |
.\" %%%license_start(verbatim) |
.\" permission is granted to make and distribute verbatim copies of this |
.\" manual provided the copyright notice and this permission notice are |
.\" preserved on all copies. |
.\" |
.\" permission is granted to copy and distribute modified versions of this |
.\" manual under the conditions for verbatim copying, provided that the |
.\" entire resulting derived work is distributed under the terms of a |
.\" permission notice identical to this one. |
.\" |
.\" since the linux kernel and libraries are constantly changing, this |
.\" manual page may be incorrect or out-of-date. the author(s) assume no |
.\" responsibility for errors or omissions, or for damages resulting from |
.\" the use of the information contained herein. the author(s) may not |
.\" have taken the same level of care in the production of this manual, |
.\" which is licensed free of charge, as they might when working |
.\" professionally. |
.\" |
.\" formatted or processed versions of this manual, if unaccompanied by |
.\" the source, must acknowledge the copyright and authors of this work. |
.\" %%%license_end |
.\" |
.\" modified by michael haardt <[email protected]> |
.\" modified 1993-07-24 by rik faith <[email protected]> |
.\" modified 1996-10-22 by eric s. raymond <[email protected]> |
.\" modified 2004-06-23 by michael kerrisk <[email protected]> |
.\" modified 2005-01-09 by aeb |
.\" |
.th uselib 2 2021-03-22 "linux" "linux programmer's manual" |
.sh name |
uselib \- load shared library |
.sh synopsis |
.nf |
.b #include <unistd.h> |
.pp |
.bi "int uselib(const char *" library ); |
.fi |
.pp |
.ir note : |
no declaration of this system call is provided in glibc headers; see notes. |
.sh description |
the system call |
.br uselib () |
serves to load |
a shared library to be used by the calling process. |
it is given a pathname. |
the address where to load is found |
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