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
108
109
110
|
#include "api/error.h"
#include "arch/x86_64/hal/obj.h"
#include "hal/memory.h"
#include "hal/obj.h"
#include "lib/string.h"
#include "jove.h"
int
objdir_new(jove_owned_obj_t *untyped_obj)
{
jove_untyped_t *untyped = obj_deref(untyped_obj);
if((uintptr_t)untyped & (OBJDIR_SIZE - 1)) return -EALIGN;
if(untyped->limit != OBJDIR_SIZE) return -EBADSIZE;
memset(untyped, 0, OBJDIR_SIZE);
obj_settype(untyped_obj, JOVE_OBJ_OBJDIR);
return 0;
}
jove_obj_t
objdir_peeklocal(
jove_obj_t *objdir_obj,
uint16_t entry)
{
jove_owned_obj_t *objdir = obj_take(objdir_obj);
if(obj_gettype(objdir) != JOVE_OBJ_OBJDIR) {
errno = EBADOBJ;
obj_release(objdir);
return (jove_obj_t) { 0 };
}
if(entry >= OBJDIR_ENTRIES) {
errno = EBADPATH;
obj_release(objdir);
return (jove_obj_t) { 0 };
}
jove_objdir_t *objtab = obj_deref(objdir);
jove_obj_t obj = objtab->entries[entry];
obj_release(objdir);
return obj;
}
jove_owned_obj_t*
objdir_getlocal(
jove_obj_t *objdir_obj,
uint16_t entry)
{
jove_owned_obj_t *objdir = obj_take(objdir_obj);
jove_owned_obj_t *obj = objdir_getlocal_locked(objdir, entry);
obj_release(objdir);
return obj;
}
jove_owned_obj_t *objdir_getlocal_locked(jove_owned_obj_t *objdir, objpath_part_t entry)
{
if(obj_gettype(objdir) != JOVE_OBJ_OBJDIR) {
obj_release(objdir);
reterr(EBADOBJ);
}
if(entry >= OBJDIR_ENTRIES) {
obj_release(objdir);
reterr(EBADPATH);
}
jove_objdir_t *objtab = obj_deref(objdir);
jove_owned_obj_t *obj = obj_take(&objtab->entries[entry]);
return obj;
}
jove_owned_obj_t*
objdir_getobj(
jove_obj_t *objdir_obj,
const uint16_t *path,
size_t path_len)
{
jove_owned_obj_t *objdir = obj_take(objdir_obj);
jove_owned_obj_t *obj = objdir_getobj_locked(objdir, path, path_len);
obj_release(objdir);
return obj;
}
jove_owned_obj_t *objdir_getobj_locked(jove_owned_obj_t *objdir,
const objpath_part_t *path,
size_t path_len)
{
errno = 0;
if(path_len == 0) return objdir;
jove_owned_obj_t *child_obj = objdir_getlocal_locked(objdir, path[0]);
obj_release(objdir);
if(child_obj == NULL) return NULL;
return objdir_getobj_locked(child_obj, &path[1], path_len - 1);
}
bool
objdir_compare(jove_obj_t *objdir_obj, objpath_part_t entry, jove_obj_t *obj)
{
jove_obj_t peekobj = objdir_peeklocal(objdir_obj, entry);
return obj_compare(&peekobj, obj);
}
void
objdir_swapobj(jove_owned_obj_t *a, jove_owned_obj_t *b)
{
jove_owned_obj_t buffer_obj = *a;
*a = *b;
*b = buffer_obj;
}
|
