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
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
|
#include "Object.h"
#include "VirtualFolder_cl.h"
#include <task/task.h>
#include <core/sys.h>
#include <core/monitor.h>
#include <lib/earray.h>
struct earray numberedMethods;
struct earray interfaces;
void setup_object_system() {
numberedMethods.ref_vect_init_len = 32;
numberedMethods.vect_len = 256;
numberedMethods.data = 0;
earray_init(&numberedMethods);
interfaces.ref_vect_init_len = 32;
interfaces.vect_len = 32;
interfaces.data = 0;
earray_init(&interfaces);
Class_setup(&VirtualFolderClass);
rootObject = VirtualFolder_new();
deviceListObject = VirtualFolder_new();
VirtualFolder_addChild(rootObject, 0, ".dev", deviceListObject, 0, 0);
}
void Class_setup(Class *_class) {
monitor_write("\n * Setup class '");
monitor_write(_class->name);
monitor_write("'... ");
int i;
for (i = 0; _class->interfaces[i].interface != 0; i++) {
Interface_setup(_class->interfaces[i].interface);
}
}
void Interface_setup(Interface *iface) {
int i;
monitor_write("\n - Setup interface '");
monitor_write(iface->name);
monitor_write("' :");
if (iface->numberedMethods != 0) return;
earray_add(&interfaces, iface);
iface->numberedMethods = kmalloc(iface->method_count * sizeof(NumberedMethod));
iface->methodNumbers = kmalloc(iface->method_count * sizeof(int));
for (i = 0; i < iface->method_count; i++) {
iface->numberedMethods[i].iface = iface;
iface->numberedMethods[i].numberInIface = i;
iface->methodNumbers[i] = earray_add(&numberedMethods, &iface->numberedMethods[i]);
monitor_write(" #"); monitor_writeDec(iface->methodNumbers[i]);
}
}
MethodPtr *Class_getInterfaceImpl(Class *_class, Interface *iface) {
int i;
for (i = 0; _class->interfaces[i].interface != 0; i++) {
if (_class->interfaces[i].interface == iface) {
return _class->interfaces[i].methods;
}
}
return 0;
}
Object* Object_get(Object *parent, char *path) {
char* member = path;
Object *object = parent;
while (*path != 0 && object != 0) {
if (*path == '/') {
if (member == path) {
member++;
path++;
} else {
*path = 0;
if (object->_class->findChild != 0) {
object = object->_class->findChild(object, member);
} else {
object = 0;
}
path++;
member = path;
}
} else {
path++;
}
}
if (object != 0 && member != path) {
if (object->_class->findChild != 0) {
object = object->_class->findChild(object, member);
} else {
object = 0;
}
}
return object;
}
// SYSCALLS
int open(char* name) {
ASSERT(current_process != 0);
Object *obj = Object_get(rootObject, name);
if (obj == 0) return E_NOT_FOUND;
obj->handles++;
return earray_add(¤t_process->handles, obj);
}
int open_relative(char* name, int root_handle) {
ASSERT(current_process != 0);
Object *parent = read_handle(current_process, root_handle);
if (parent == 0) return E_BAD_HANDLE;
Object *obj = Object_get(parent, name);
if (obj == 0) return E_NOT_FOUND;
if (obj->_class->open != 0) {
int r = obj->_class->open(obj, current_process);
if (r != 0) return r;
}
obj->handles++;
return earray_add(¤t_process->handles, obj);
}
void close(size_t handle) {
ASSERT(current_process != 0);
Object *obj = read_handle(current_process, handle);
if (obj == 0) return;
obj->handles--;
if (obj->_class->closed != 0) obj->_class->closed(obj);
earray_set(¤t_process->handles, handle, 0);
}
int get_methods(char* iface_name, int* whereto) {
int i = 0;
Interface *iface = 0, *tmp;
for (i = 0; i < interfaces.elements; i++) {
tmp = earray_at(&interfaces, i);
if (tmp != 0) {
if (strcmp(tmp->name, iface_name) == 0) {
iface = tmp;
break;
}
}
}
if (iface == 0) return E_NOT_FOUND;
for (i = 0; i < iface->public_method_count; i++) {
whereto[i] = iface->methodNumbers[i];
}
return iface->public_method_count;
}
Object* read_handle(struct process *proc, size_t handle) {
if (proc == 0) return (Object*)handle;
return earray_at(&proc->handles, handle);
}
int do_method_call_2(int handle, int method, size_t a, size_t b, size_t c, size_t d) {
ASSERT(current_process != 0)
Object *obj = read_handle(current_process, handle);
if (obj == 0) return E_BAD_HANDLE;
NumberedMethod *nm = earray_at(&numberedMethods, method);
if (nm == 0) return E_NOT_IMPLEMENTED;
if (nm->numberInIface >= nm->iface->public_method_count) return E_NOT_PUBLIC;
MethodPtr* m = Class_getInterfaceImpl(obj->_class, nm->iface);
if (m == 0) return E_NOT_IMPLEMENTED;
MethodPtr p = m[nm->numberInIface];
ASSERT(p != 0);
return p(obj, current_process, a, b, c, d);
}
void do_method_call(struct registers *regs) {
regs->eax = do_method_call_2(regs->eax, regs->ebx, regs->ecx, regs->edx, regs->esi, regs->edi);
}
|
