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
189
190
191
|
#include "EXTERN.h"
#include "perl.h"
#include "XSUB.h"
#define NEED_sv_2pvbyte
#define NEED_newSVpvn_flags
#include "ppport.h"
#include <assert.h>
#include <string.h>
#include <msgpack.h>
typedef struct my_unpacker_s my_unpacker_t;
struct my_unpacker_s {
msgpack_unpacker* unpacker;
msgpack_unpacked result;
};
static SV*
load_bool(pTHX_ const char* const name) {
CV* const cv = get_cv(name, GV_ADD);
dSP;
ENTER;
SAVETMPS;
PUSHMARK(SP);
call_sv((SV*)cv, G_SCALAR);
SPAGAIN;
SV* const sv = newSVsv(POPs);
PUTBACK;
FREETMPS;
LEAVE;
assert(sv);
assert(sv_isobject(sv));
if(!SvOK(sv)) {
Perl_croak(aTHX_ "Oops: Failed to load %"SVf, name);
}
return sv;
}
static SV* decode_msgpack_object(msgpack_object* obj) {
SV* res = NULL;
SV* key_sv;
AV* av;
HV* hv;
size_t i;
msgpack_object* o;
msgpack_object_kv* kv;
const char* key;
STRLEN len;
switch (obj->type) {
case MSGPACK_OBJECT_NIL:
res = newSV(0);
break;
case MSGPACK_OBJECT_BOOLEAN: {
if (obj->via.boolean == 1) {
res = newSVsv( load_bool(aTHX_ "Data::MessagePack::true") );
} else {
res = newSVsv( load_bool(aTHX_ "Data::MessagePack::false") );
}
break;
}
case MSGPACK_OBJECT_POSITIVE_INTEGER:
res = newSVuv(obj->via.u64);
break;
case MSGPACK_OBJECT_NEGATIVE_INTEGER:
res = newSViv(obj->via.i64);
break;
case MSGPACK_OBJECT_FLOAT:
res = newSVnv(obj->via.f64);
break;
case MSGPACK_OBJECT_BIN:
res = newSVpvn(obj->via.bin.ptr, obj->via.bin.size);
break;
case MSGPACK_OBJECT_STR:
res = newSVpvn_utf8(obj->via.str.ptr, obj->via.str.size, 1);
break;
case MSGPACK_OBJECT_ARRAY: {
av = (AV*)sv_2mortal((SV*)newAV());
o = obj->via.array.ptr;
for (i = 0; i < obj->via.array.size; i++) {
av_push(av, decode_msgpack_object(o + i));
}
res = newRV_inc((SV*)av);
break;
}
case MSGPACK_OBJECT_MAP: {
hv = (HV*)sv_2mortal((SV*)newHV());
kv = obj->via.map.ptr;
for (i = 0; i < obj->via.map.size; i++) {
key_sv = decode_msgpack_object(&((kv + i)->key));
key = SvPV(key_sv, len);
o = &((kv + i)->val);
hv_store(hv, key, len, decode_msgpack_object(o), 0);
SvREFCNT_dec(key_sv);
}
res = newRV_inc((SV*)hv);
break;
}
default:
Perl_croak(aTHX_ "Unsupported msgpack type: %d", obj->type);
break;
}
return res;
}
MODULE=Data::MessagePack::Stream PACKAGE=Data::MessagePack::Stream
PROTOTYPES: DISABLE
void
new(SV* sv_klass)
CODE:
{
SV* sv_msgpack;
HV* hv;
my_unpacker_t* up;
char* klass = NULL;
hv = (HV*)sv_2mortal((SV*)newHV());
sv_msgpack = sv_2mortal(newRV_inc((SV*)hv));
klass = SvPV_nolen(sv_klass);
sv_bless(sv_msgpack, gv_stashpv(klass, 1));
Newx(up, 1, my_unpacker_t);
up->unpacker = msgpack_unpacker_new(MSGPACK_UNPACKER_INIT_BUFFER_SIZE);
if (NULL == up->unpacker) {
croak("cannot allocate msgpack unpacker");
}
msgpack_unpacked_init(&up->result);
sv_magic((SV*)hv, NULL, PERL_MAGIC_ext, NULL, 0);
mg_find((SV*)hv, PERL_MAGIC_ext)->mg_obj = (SV*)up;
ST(0) = sv_msgpack;
XSRETURN(1);
}
void
DESTROY(my_unpacker_t* up)
CODE:
{
msgpack_unpacker_free(up->unpacker);
msgpack_unpacked_destroy(&up->result);
Safefree(up);
}
void
feed(my_unpacker_t* up, SV* sv_buf)
CODE:
{
char* buf;
STRLEN len;
buf = SvPV(sv_buf, len);
msgpack_unpacker_reserve_buffer(up->unpacker, len);
memcpy(msgpack_unpacker_buffer(up->unpacker), buf, len);
msgpack_unpacker_buffer_consumed(up->unpacker, len);
}
int
next(my_unpacker_t* up)
CODE:
{
RETVAL = msgpack_unpacker_next(up->unpacker, &up->result);
}
OUTPUT:
RETVAL
void
data(my_unpacker_t* up)
CODE:
{
SV* sv_res;
sv_res = sv_2mortal(decode_msgpack_object(&up->result.data));
ST(0) = sv_res;
XSRETURN(1);
}
|
