-
Notifications
You must be signed in to change notification settings - Fork 138
/
pmc.c
107 lines (85 loc) · 2.72 KB
/
pmc.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
/* pmc.c
* Copyright: (When this is determined...it will go here)
* CVS Info
* $Id$
* Overview:
* The base vtable calling functions.
* Data Structure and Algorithms:
* See include/parrot/vtable.h.
* History:
* Initial version by Simon on 2001.10.20
* Notes:
* References:
* <5.1.0.14.2.20011008152120.02158148@pop.sidhe.org>
*/
#include "parrot/parrot.h"
/*=for api pmc pmc_new
Creates a new PMC of type C<base_type> (which is an index into
the list of PMC types declared in C<Parrot_base_vtables> in
F<pmc.h>). Once the PMC has been successfully created and
its vtable pointer initialized, we call its C<init> method to
perform any other necessary initialization.
=cut
*/
PMC *
pmc_new(struct Parrot_Interp *interpreter, INTVAL base_type)
{
PMC *pmc = new_pmc_header(interpreter);
if (!pmc) {
internal_exception(ALLOCATION_ERROR,
"Parrot VM: PMC allocation failed!\n");
return NULL;
}
/* Ensure the PMC survives DOD during this function */
pmc->flags |= PMC_immune_FLAG;
pmc->vtable = &(Parrot_base_vtables[base_type]);
if (!pmc->vtable || !pmc->vtable->init) {
/* This is usually because you either didn't call init_world early
* enough or you added a new PMC class without adding
* Parrot_(classname)_class_init to init_world. */
PANIC("Null vtable used");
return NULL;
}
pmc->vtable->init(interpreter, pmc);
/* Let the caller track this PMC */
pmc->flags &= ~PMC_immune_FLAG;
return pmc;
}
/*=for api pmc pmc_new_sized
As C<pmc_new>, but passes C<size> to the PMC's C<init> method.
=cut
*/
PMC *
pmc_new_sized(struct Parrot_Interp *interpreter, INTVAL base_type, INTVAL size)
{
PMC *pmc = new_pmc_header(interpreter);
if (!pmc) {
internal_exception(ALLOCATION_ERROR,
"Parrot VM: PMC allocation failed!\n");
return NULL;
}
/* Ensure the PMC survives DOD during this function */
pmc->flags |= PMC_immune_FLAG;
pmc->vtable = &(Parrot_base_vtables[base_type]);
if (!pmc->vtable || !pmc->vtable->init) {
/* This is usually because you either didn't call init_world early
* enough or you added a new PMC class without adding
* Parrot_(classname)_class_init to init_world. */
PANIC("Null vtable used");
return NULL;
}
/* XXX - pmc->vtable->init(interpreter, pmc, size); */
pmc->vtable->init(interpreter, pmc);
/* Let the caller track this PMC */
pmc->flags &= ~PMC_immune_FLAG;
return pmc;
}
/*
* Local variables:
* c-indentation-style: bsd
* c-basic-offset: 4
* indent-tabs-mode: nil
* End:
*
* vim: expandtab shiftwidth=4:
*/