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Tag: RELEASE_0_9_1
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/*
Copyright (C) 2001-2008, Parrot Foundation.
$Id$
=head1 NAME
src/pmc/parrotlibrary.pmc - Dynamic Library
=head1 DESCRIPTION
Class for holding info about a dynamic library.
PMC data
PMC_struct_val(SELF) oplib init function
PMC_data(SELF) DLL handle
Properties:
_filename full path/file of lib
_ro true after init
All ParrotLibrary PMCs are in interp->iglobals.
When a dynamic library (pmc or ops) is loaded, the load function returns
a ParrotLibrary PMC.
=head2 Methods
=over 4
=cut
*/
#include "parrot/parrot.h"
pmclass ParrotLibrary need_ext provides library {
/*
=item C<void init()>
Initializes the library with a C<NULL> oplib init function.
=cut
*/
VTABLE void init() {
PObj_active_destroy_SET(SELF);
PMC_struct_val(SELF) = NULL;
}
/*
=item C<void destroy()>
Destroys the library, closing the shared library.
=cut
*/
VTABLE void destroy() {
if (PMC_data(SELF))
Parrot_dlclose(PMC_data(SELF));
}
/*
=item C<PMC *clone()>
Creates and returns a clone of the library.
=cut
*/
VTABLE PMC *clone() {
PMC *dest = pmc_new_noinit(INTERP, SELF->vtable->base_type);
PMC_struct_val(dest) = PMC_struct_val(SELF);
PMC_data(dest) = PMC_data(SELF);
if (PMC_metadata(SELF))
PMC_metadata(dest) = VTABLE_clone(INTERP, PMC_metadata(SELF));
return dest;
}
/*
=item C<INTVAL get_bool()>
Returns whether a library has been successfully loaded.
=cut
*/
VTABLE INTVAL get_bool() {
return (PMC_data(SELF) != NULL);
}
/*
=item C<STRING *get_string()>
Returns the name of the loaded library.
=cut
*/
VTABLE STRING *get_string() {
STRING *key = CONST_STRING(INTERP, "_filename");
PMC *prop = VTABLE_getprop(INTERP, SELF, key);
return VTABLE_get_string(INTERP, prop);
}
/*
=item C<void set_pointer(void *handle)>
Set the pointer to the shared library handle.
=cut
*/
VTABLE void set_pointer(void *handle) {
PMC_data(SELF) = handle;
}
}
/*
=back
=head1 SEE ALSO
Date: Mon, 29 Sep 2003 14:37:11 -0400 (EDT)
Subject: Library loading and initialization sequence
From: Dan Sugalski
=head1 HISTORY
Initial version by leo 2003.10.12.
=cut
*/
/*
* Local variables:
* c-file-style: "parrot"
* End:
* vim: expandtab shiftwidth=4:
*/
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