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global_setup.c
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global_setup.c
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/*
Copyright (C) 2001-2008, Parrot Foundation.
$Id$
=head1 NAME
src/global_setup.c - Global setup
=head1 DESCRIPTION
Performs all the global setting up of things. This includes the very
few global variables that Parrot totes around.
I<What are these global variables?>
=head2 Functions
=over 4
=cut
*/
#define INSIDE_GLOBAL_SETUP
#include "parrot/parrot.h"
#include "global_setup.str"
/* These functions are defined in the auto-generated file core_pmcs.c */
/* XXX Get it into some public place */
extern void Parrot_initialize_core_pmcs(PARROT_INTERP, int pass);
void Parrot_register_core_pmcs(PARROT_INTERP, PMC* registry);
static const unsigned char* parrot_config_stored = NULL;
static unsigned int parrot_config_size_stored = 0;
/* HEADERIZER HFILE: include/parrot/global_setup.h */
/* HEADERIZER BEGIN: static */
/* Don't modify between HEADERIZER BEGIN / HEADERIZER END. Your changes will be lost. */
static void parrot_global_setup_2(PARROT_INTERP)
__attribute__nonnull__(1);
static void parrot_set_config_hash_interpreter(PARROT_INTERP)
__attribute__nonnull__(1);
#define ASSERT_ARGS_parrot_global_setup_2 __attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp))
#define ASSERT_ARGS_parrot_set_config_hash_interpreter \
__attribute__unused__ int _ASSERT_ARGS_CHECK = (\
PARROT_ASSERT_ARG(interp))
/* Don't modify between HEADERIZER BEGIN / HEADERIZER END. Your changes will be lost. */
/* HEADERIZER END: static */
/*
=item C<void Parrot_set_config_hash_internal(const unsigned char* parrot_config,
unsigned int parrot_config_size)>
Called by Parrot_set_config_hash with the serialised hash which
will be used in subsequently created Interpreters.
=cut
*/
PARROT_EXPORT
void
Parrot_set_config_hash_internal(ARGIN(const unsigned char* parrot_config),
unsigned int parrot_config_size)
{
ASSERT_ARGS(Parrot_set_config_hash_internal)
parrot_config_stored = parrot_config;
parrot_config_size_stored = parrot_config_size;
}
/*
=item C<static void parrot_set_config_hash_interpreter(PARROT_INTERP)>
Used internally to associate the config hash with an Interpreter
using the last registered config data.
=cut
*/
static void
parrot_set_config_hash_interpreter(PARROT_INTERP)
{
ASSERT_ARGS(parrot_set_config_hash_interpreter)
PMC *iglobals = interp->iglobals;
PMC *config_hash = NULL;
if (parrot_config_size_stored > 1) {
STRING * const config_string =
Parrot_str_new_init(interp,
(const char *)parrot_config_stored, parrot_config_size_stored,
PARROT_DEFAULT_ENCODING, PARROT_DEFAULT_CHARSET,
PObj_external_FLAG|PObj_constant_FLAG);
config_hash = Parrot_thaw(interp, config_string);
}
else {
config_hash = Parrot_pmc_new(interp, enum_class_Hash);
}
VTABLE_set_pmc_keyed_int(interp, iglobals,
(INTVAL) IGLOBALS_CONFIG_HASH, config_hash);
}
/*
=item C<void init_world_once(PARROT_INTERP)>
Call init_world() if it hasn't been called before.
C<interp> should be the root interpreter created in C<Parrot_new(NULL)>.
=cut
*/
void
init_world_once(PARROT_INTERP)
{
ASSERT_ARGS(init_world_once)
if (!interp->world_inited) {
/* init_world() sets up some vtable stuff.
* It must only be called once.
*/
interp->world_inited = 1;
init_world(interp);
}
}
/*
=item C<void init_world(PARROT_INTERP)>
This is the actual initialization code called by C<init_world_once()>.
It sets up the Parrot system, running any platform-specific init code if
necessary, then initializing the string subsystem, and setting up the
base vtables and core PMCs.
C<interp> should be the root interpreter created in C<Parrot_new(NULL)>.
=cut
*/
void
init_world(PARROT_INTERP)
{
ASSERT_ARGS(init_world)
PMC *iglobals, *self, *pmc;
#ifdef PARROT_HAS_PLATFORM_INIT_CODE
Parrot_platform_init_code();
#endif
/* Call base vtable class constructor methods */
parrot_global_setup_2(interp);
Parrot_initialize_core_pmcs(interp, 1);
iglobals = interp->iglobals;
VTABLE_set_pmc_keyed_int(interp, iglobals,
(INTVAL)IGLOBALS_CLASSNAME_HASH, interp->class_hash);
self = Parrot_pmc_new_noinit(interp, enum_class_ParrotInterpreter);
VTABLE_set_pointer(interp, self, interp);
/* PMC_data(self) = interp; */
VTABLE_set_pmc_keyed_int(interp, iglobals,
(INTVAL)IGLOBALS_INTERPRETER, self);
parrot_set_config_hash_interpreter(interp);
/* lib search paths */
parrot_init_library_paths(interp);
/* load_bytecode and dynlib loaded hash */
pmc = Parrot_pmc_new(interp, enum_class_Hash);
VTABLE_set_pmc_keyed_int(interp, iglobals, IGLOBALS_PBC_LIBS, pmc);
pmc = Parrot_pmc_new(interp, enum_class_Hash);
VTABLE_set_pmc_keyed_int(interp, iglobals, IGLOBALS_DYN_LIBS, pmc);
}
/*
=item C<static void parrot_global_setup_2(PARROT_INTERP)>
called from inmidst of PMC bootstrapping between pass 0 and 1
=cut
*/
static void
parrot_global_setup_2(PARROT_INTERP)
{
ASSERT_ARGS(parrot_global_setup_2)
PMC *classname_hash, *iglobals;
int i;
create_initial_context(interp);
/* create the namespace root stash */
interp->root_namespace = Parrot_pmc_new(interp, enum_class_NameSpace);
Parrot_init_HLL(interp);
Parrot_pcc_set_namespace(interp, CURRENT_CONTEXT(interp),
VTABLE_get_pmc_keyed_int(interp, interp->HLL_namespace, 0));
/* We need a class hash */
interp->class_hash = classname_hash = Parrot_pmc_new(interp, enum_class_NameSpace);
Parrot_register_core_pmcs(interp, classname_hash);
/* init the interpreter globals array */
iglobals = Parrot_pmc_new(interp, enum_class_FixedPMCArray);
interp->iglobals = iglobals;
VTABLE_set_integer_native(interp, iglobals, (INTVAL)IGLOBALS_SIZE);
/* clear the array */
for (i = 0; i < (INTVAL)IGLOBALS_SIZE; i++)
VTABLE_set_pmc_keyed_int(interp, iglobals, i, NULL);
}
/*
* Local variables:
* c-file-style: "parrot"
* End:
* vim: expandtab shiftwidth=4:
*/