Copyright (c) 2011 The FreeBSD Foundation
All rights reserved.
This documentation was written by David Chisnall under sponsorship from
the FreeBSD Foundation.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
$FreeBSD$
.Dd September 17, 2011 .Dt DUPLOCALE 3 .Os .Sh NAME .Nm duplocale .Nd duplicate an locale .Sh LIBRARY .Lb libc .Sh SYNOPSIS n locale.h .Ft locale_t .Fn duplocale "locale_t locale" .Sh DESCRIPTION Duplicates an existing .Fa locale_t returning a new .Fa locale_t that refers to the same locale values but has an independent internal state. Various functions, such as .Xr mblen 3 require a persistent state. These functions formerly used static variables and calls to them from multiple threads had undefined behavior. They now use fields in the .Fa locale_t associated with the current thread by .Xr uselocale 3 . These calls are therefore only thread safe on threads with a unique per-thread locale. The locale returned by this call must be freed with .Xr freelocale 3 . .Sh SEE ALSO .Xr freelocale 3 , .Xr localeconv 3 , .Xr newlocale 3 , .Xr querylocale 3 , .Xr uselocale 3 , .Xr xlocale 3 .Sh STANDARDS This function conforms to .St -p1003.1-2008 . .Sh BUGS Ideally, .Xr uselocale 3 should make a copy of the .Fa locale_t implicitly to ensure thread safety, and a copy of the global locale should be installed lazily on each thread. The FreeBSD implementation does not do this, for compatibility with Darwin.
All rights reserved.
This documentation was written by David Chisnall under sponsorship from
the FreeBSD Foundation.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
notice, this list of conditions and the following disclaimer in the
documentation and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
SUCH DAMAGE.
$FreeBSD$
.Dd September 17, 2011 .Dt DUPLOCALE 3 .Os .Sh NAME .Nm duplocale .Nd duplicate an locale .Sh LIBRARY .Lb libc .Sh SYNOPSIS n locale.h .Ft locale_t .Fn duplocale "locale_t locale" .Sh DESCRIPTION Duplicates an existing .Fa locale_t returning a new .Fa locale_t that refers to the same locale values but has an independent internal state. Various functions, such as .Xr mblen 3 require a persistent state. These functions formerly used static variables and calls to them from multiple threads had undefined behavior. They now use fields in the .Fa locale_t associated with the current thread by .Xr uselocale 3 . These calls are therefore only thread safe on threads with a unique per-thread locale. The locale returned by this call must be freed with .Xr freelocale 3 . .Sh SEE ALSO .Xr freelocale 3 , .Xr localeconv 3 , .Xr newlocale 3 , .Xr querylocale 3 , .Xr uselocale 3 , .Xr xlocale 3 .Sh STANDARDS This function conforms to .St -p1003.1-2008 . .Sh BUGS Ideally, .Xr uselocale 3 should make a copy of the .Fa locale_t implicitly to ensure thread safety, and a copy of the global locale should be installed lazily on each thread. The FreeBSD implementation does not do this, for compatibility with Darwin.