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parrotthread.pmc
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parrotthread.pmc
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/*
Copyright (C) 2001-2011, Parrot Foundation.
=head1 NAME
src/pmc/parrotthread.pmc - Represents a Parrot Thread.
=head1 DESCRIPTION
This type represents a parrot thread.
It provides the following methods:
- join
- detach
- kill
- pid
=head2 Methods
=over 4
=cut
*/
#include "parrot/embed.h"
pmclass ParrotThread no_ro auto_attrs {
ATTR INTVAL tid; /* thread id */
/* HEADERIZER HFILE: none */
/* HEADERIZER BEGIN: static */
/* HEADERIZER END: static */
/*
=item C<void init()>
Create a new, invalid handle to a running thread.
=cut
*/
VTABLE void init() {
VTABLE_set_integer_native(INTERP, SELF, -1);
}
/*
=item C<void init_pmc(PMC *notused)>
Create a new, invalid handle to a running thread.
=cut
*/
VTABLE void init_pmc(PMC *notused) {
VTABLE_set_integer_native(INTERP, SELF, -1);
}
/*
=item C<INTVAL get_integer()>
Return the thread ID of this thread.
=cut
*/
VTABLE INTVAL get_integer() {
INTVAL ttid;
GETATTR_ParrotThread_tid(INTERP, SELF, ttid);
return ttid;
}
VTABLE void set_integer_native(INTVAL ttid) {
SETATTR_ParrotThread_tid(INTERP, SELF, ttid);
}
/*
=item C<METHOD run(closure)>
Join the thread, returning whatever its main method returns.
=cut
*/
METHOD run_clone(PMC *sub, PMC *args :slurpy) {
INTVAL ttid;
if (PMC_IS_NULL(sub)) {
Parrot_ex_throw_from_c_args(INTERP, NULL, EXCEPTION_INVALID_OPERATION,
"Invalid thread sub");
}
ttid = pt_thread_create_run(INTERP,
enum_class_ThreadInterpreter, PARROT_CLONE_DEFAULT, sub, args);
VTABLE_set_integer_native(INTERP, SELF, ttid);
}
METHOD run(INTVAL clone_flags, PMC *sub, PMC *args :slurpy) {
INTVAL ttid;
if (PMC_IS_NULL(sub)) {
Parrot_ex_throw_from_c_args(INTERP, NULL, EXCEPTION_INVALID_OPERATION,
"Invalid thread sub");
}
ttid = pt_thread_create_run(INTERP, enum_class_ThreadInterpreter, clone_flags, sub, args);
VTABLE_set_integer_native(INTERP, SELF, ttid);
}
/*
=item C<METHOD join()>
Join the thread, returning whatever its main method returns.
=cut
*/
METHOD join() {
const INTVAL ttid = VTABLE_get_integer(INTERP, SELF);
PMC * const ret = pt_thread_join(INTERP, ttid);
/* invalidate self */
VTABLE_set_integer_native(INTERP, SELF, -1);
RETURN(PMC *ret);
}
/*
=item C<METHOD detach()>
Detach the thread so it cannot be joined and will free its resources
immediately when it exits.
=cut
*/
METHOD detach() {
pt_thread_detach((UINTVAL)VTABLE_get_integer(INTERP, SELF));
}
/*
=item C<METHOD kill()>
Terminate a running thread.
=cut
*/
METHOD kill() {
pt_thread_kill((UINTVAL)VTABLE_get_integer(INTERP, SELF));
}
}
/*
=back
=cut
*/
/*
* Local variables:
* c-file-style: "parrot"
* End:
* vim: expandtab shiftwidth=4 cinoptions='\:2=2' :
*/