sys-linux-namespace/lib/Sys/Linux/Unshare.xs

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#define PERL_NO_GET_CONTEXT // we'll define thread context if necessary (faster)
#define _GNU_SOURCE
#include "EXTERN.h" // globals/constant import locations
#include "perl.h" // Perl symbols, structures and constants definition
#include "XSUB.h" // xsubpp functions and macros
#include <sched.h>
// additional c code goes here
MODULE = Sys::Linux::Unshare PACKAGE = Sys::Linux::Unshare
PROTOTYPES: ENABLE
# XS code goes here
# XS comments begin with " #" to avoid them being interpreted as pre-processor
# directives
SV * _unshare_sys(int flags)
CODE:
ST(0) = sv_newmortal();
sv_setiv(ST(0), unshare(flags));