unpacking of all types except ext and map is done (untested!)

This commit is contained in:
Isaikin Roman
2014-09-09 22:21:39 +04:00
parent 52b0a6ed56
commit 27e2bae3de
5 changed files with 483 additions and 169 deletions

View File

@ -11,7 +11,7 @@ int main(int argc, char *argv[])
QCoreApplication a(argc, argv);
qDebug() << "MsgPack";
qDebug() << MsgPack::deserialize(QByteArray::fromHex("92cd0100cd0200"));
qDebug() << MsgPack::deserialize(QByteArray::fromHex("c403010203"));
return a.exec();
}

233
msgpack-qt.pro.user Normal file
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@ -0,0 +1,233 @@
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View File

@ -6,9 +6,7 @@ QVariant MsgPack::deserialize(const QByteArray &data)
{
quint8 *p = (quint8 *)data.data();
quint8 *end = p + data.size() - 1;
qDebug() << "deserialize size:" << data.size();
MsgPackPrivate::unpack(p, end);
//qDebug() << "deserialize size:" << data.size();
return MsgPackPrivate::unpack(p, end);
}

View File

@ -1,7 +1,7 @@
#include "msgpack_p.h"
#include <QDebug>
MsgPackPrivate::type_parser_f MsgPackPrivate::parsers[32] = {
MsgPackPrivate::type_parser_f MsgPackPrivate::unpackers[32] = {
unpack_nil,
unpack_never_used,
unpack_false, unpack_true,
@ -23,9 +23,8 @@ QVariant MsgPackPrivate::unpack(quint8 *p, quint8 *end)
while (p <= end) {
typesz = 0;
d.append(unpack_type(p, end, typesz));
d.append(unpack_type(p, typesz));
p += typesz;
//qDebug() << "unpack typesz:" << typesz;
}
if (p - end > 1)
@ -36,251 +35,323 @@ QVariant MsgPackPrivate::unpack(quint8 *p, quint8 *end)
return d;
}
QVariant MsgPackPrivate::unpack_type(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_type(quint8 *p, int &sz)
{
QVariant d;
if (*p <= 127) { // positive fixint 0x00 - 0x7f
d = unpack_positive_fixint(p, end, sz);
d = unpack_positive_fixint(p, sz);
} else if (*p >= 0xe0) { // negative fixint 0xe0 - 0xff
d = unpack_negative_fixint(p, end, sz);
d = unpack_negative_fixint(p, sz);
} else if (*p >= 0x80 && *p <= 0x8f) { // fixmap 1000xxxx 0x80 - 0x8f
d = unpack_fixmap(p, end, sz);
d = unpack_fixmap(p, sz);
} else if (*p >= 0x90 && *p <= 0x9f) { // fixarray 1001xxxx 0x90 - 0x9f
d = unpack_fixarray(p, end, sz);
d = unpack_fixarray(p, sz);
} else if (*p >= 0xa0 && *p <= 0xbf) { // fixstr 101xxxxx 0xa0 - 0xbf
d = unpack_fixstr(p, end, sz);
d = unpack_fixstr(p, sz);
} else { // all other types
d = (parsers[*p - 0xc0])(p, end, sz);
d = (unpackers[*p - 0xc0])(p, sz);
}
//qDebug() << "unpack type res:" << d << sz;
return d;
}
QVariant MsgPackPrivate::unpack_positive_fixint(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_positive_fixint(quint8 *p, int &sz)
{
Q_UNUSED(end)
quint32 val = (quint32)*p;
sz = 1;
return QVariant(val);
return val;
}
QVariant MsgPackPrivate::unpack_negative_fixint(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_negative_fixint(quint8 *p, int &sz)
{
Q_UNUSED(end)
quint8 val8 = (quint8)*p;
val8 &= ~((1 << 7) | (1 << 6) | (1 << 5));
qint32 val = 31 - val8;
val ^= 0xffffffff;
qint32 val = 0xffffffff;
val &= (0xffffffe0 | val8);
sz = 1;
return QVariant(val);
return val;
}
QVariant MsgPackPrivate::unpack_fixmap(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_fixmap(quint8 *p, int &sz)
{
Q_UNUSED(end)
}
QVariant MsgPackPrivate::unpack_fixarray(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_array_len(quint8 *p, int &sz, int len)
{
int len = (*p++) & 0x0f; // 0b00001111
sz++;
int elemsz = 0;
QVariantList arr;
for (int i = 0; i < len; ++i) {
elemsz = 0;
arr.append(unpack_type(p, end, elemsz));
arr.append(unpack_type(p, elemsz));
p += elemsz;
sz += elemsz;
}
//qDebug() << "unpack_fixarray len:" << len << arr << sz;
return arr;
}
QVariant MsgPackPrivate::unpack_fixstr(quint8 *p, quint8 *end, int &sz)
quint32 MsgPackPrivate::unpack_uint8(quint8 *p)
{
return *p;
}
quint32 MsgPackPrivate::unpack_uint16(quint8 *p)
{
quint32 val = 0;
quint8 *pv = (quint8 *)&val;
pv[1] = *(p); pv[0] = *(++p);
return val;
}
quint32 MsgPackPrivate::unpack_uint32(quint8 *p)
{
quint32 val = 0;
quint8 *pv = (quint8 *)&val;
pv[3] = *(p); pv[2] = *(++p);
pv[1] = *(++p); pv[0] = *(++p);
return val;
}
QVariant MsgPackPrivate::unpack_fixarray(quint8 *p, int &sz)
{
int len = (*p++) & 0x0f; // 0b00001111
sz++;
return unpack_array_len(p, sz, len);
}
QVariant MsgPackPrivate::unpack_fixstr(quint8 *p, int &sz)
{
Q_UNUSED(end)
int len = (*p) & 0x1f; // 0b00011111
QString str = QString::fromUtf8((char*)(p + 1), len);
sz = len + 1;
return QVariant(str);
}
QVariant MsgPackPrivate::unpack_nil(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_nil(quint8 *p, int &sz)
{
Q_UNUSED(end)
Q_UNUSED(p)
sz = 1;
return QVariant(0);
return 0;
}
QVariant MsgPackPrivate::unpack_never_used(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_never_used(quint8 *p, int &sz)
{
Q_UNUSED(end)
Q_UNUSED(p)
sz = 1;
return QVariant();
}
QVariant MsgPackPrivate::unpack_false(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_false(quint8 *p, int &sz)
{
Q_UNUSED(p)
sz = 1;
return QVariant(false);
return false;
}
QVariant MsgPackPrivate::unpack_true(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_true(quint8 *p, int &sz)
{
Q_UNUSED(p)
sz = 1;
return QVariant(true);
return true;
}
QVariant MsgPackPrivate::unpack_bin8(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_bin8(quint8 *p, int &sz)
{
quint32 len = unpack_uint8(++p);
QByteArray arr((const char *)(++p), len);
sz = len + 2;
return arr;
}
QVariant MsgPackPrivate::unpack_bin16(quint8 *p, int &sz)
{
quint32 len = unpack_uint16(++p);
QByteArray arr((const char *)(++p), len);
sz = len + 2;
return arr;
}
QVariant MsgPackPrivate::unpack_bin32(quint8 *p, int &sz)
{
quint32 len = unpack_uint32(++p);
QByteArray arr((const char *)(++p), len);
sz = len + 2;
return arr;
}
QVariant MsgPackPrivate::unpack_ext8(quint8 *p, int &sz)
{
}
QVariant MsgPackPrivate::unpack_bin16(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_ext16(quint8 *p, int &sz)
{
}
QVariant MsgPackPrivate::unpack_bin32(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_ext32(quint8 *p, int &sz)
{
}
QVariant MsgPackPrivate::unpack_ext8(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_float32(quint8 *p, int &sz)
{
float val = 0;
quint8 *vp = ( (quint8 *)&val ) + 3;
for (int i = 0; i < 4; ++i)
*(vp--) = *(++p);
sz = 5;
return val;
}
QVariant MsgPackPrivate::unpack_ext16(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_float64(quint8 *p, int &sz)
{
double val = 0;
quint8 *vp = ( (quint8 *)&val ) + 7;
for (int i = 0; i < 8; ++i)
*(vp--) = *(++p);
sz = 9;
return val;
}
QVariant MsgPackPrivate::unpack_ext32(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_uint8(quint8 *p, int &sz)
{
sz = 2;
return unpack_uint8(++p);
}
QVariant MsgPackPrivate::unpack_float32(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_uint16(quint8 *p, int &sz)
{
sz = 3;
return unpack_uint16(++p);
}
QVariant MsgPackPrivate::unpack_float64(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_uint32(quint8 *p, int &sz)
{
sz = 5;
return unpack_uint32(++p);
}
QVariant MsgPackPrivate::unpack_uint8(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_uint64(quint8 *p, int &sz)
{
quint32 val;
val = *(++p);
quint64 val = 0;
for (int i = 56; i >= 0; i -= 8)
val |= (quint64)(*(++p)) << i;
sz = 9;
return val;
}
QVariant MsgPackPrivate::unpack_int8(quint8 *p, int &sz)
{
qint32 val = 0xffffff00;
val |= *(++p);
sz = 2;
return val;
}
QVariant MsgPackPrivate::unpack_uint16(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_int16(quint8 *p, int &sz)
{
quint32 val;
val = *(++p);
val |= *(++p) << 8;
qint32 val = 0xffff0000;
quint8 *pv = (quint8 *)&val;
pv[1] = *(++p); pv[0] = *(++p);
sz = 3;
return val;
}
QVariant MsgPackPrivate::unpack_uint32(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_int32(quint8 *p, int &sz)
{
qint32 val = 0;
quint8 *pv = (quint8 *)&val;
pv[3] = *(++p); pv[2] = *(++p);
pv[1] = *(++p); pv[0] = *(++p);
sz = 5;
return val;
}
QVariant MsgPackPrivate::unpack_int64(quint8 *p, int &sz)
{
qint64 val = 0;
for (int i = 56; i >= 0; i -= 8)
val |= (quint64)(*(++p)) << i;
sz = 9;
return val;
}
QVariant MsgPackPrivate::unpack_fixext1(quint8 *p, int &sz)
{
}
QVariant MsgPackPrivate::unpack_uint64(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_fixext2(quint8 *p, int &sz)
{
}
QVariant MsgPackPrivate::unpack_int8(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_fixext4(quint8 *p, int &sz)
{
}
QVariant MsgPackPrivate::unpack_int16(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_fixext8(quint8 *p, int &sz)
{
}
QVariant MsgPackPrivate::unpack_int32(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_fixext16(quint8 *p, int &sz)
{
}
QVariant MsgPackPrivate::unpack_int64(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_str8(quint8 *p, int &sz)
{
quint32 len = unpack_uint8(++p);
QString str = QString::fromUtf8((char*)(p + 1), len);
sz = len + 1;
return QVariant(str);
}
QVariant MsgPackPrivate::unpack_str16(quint8 *p, int &sz)
{
quint32 len = unpack_uint16(++p);
QString str = QString::fromUtf8((char*)(p + 1), len);
sz = len + 1;
return QVariant(str);
}
QVariant MsgPackPrivate::unpack_str32(quint8 *p, int &sz)
{
quint32 len = unpack_uint32(++p);
QString str = QString::fromUtf8((char*)(p + 1), len);
sz = len + 1;
return QVariant(str);
}
QVariant MsgPackPrivate::unpack_array16(quint8 *p, int &sz)
{
quint32 len = unpack_uint16(++p);
return unpack_array_len(p, sz, len);
}
QVariant MsgPackPrivate::unpack_array32(quint8 *p, int &sz)
{
quint32 len = unpack_uint32(++p);
return unpack_array_len(p, sz, len);
}
QVariant MsgPackPrivate::unpack_map16(quint8 *p, int &sz)
{
}
QVariant MsgPackPrivate::unpack_fixext1(quint8 *p, quint8 *end, int &sz)
{
}
QVariant MsgPackPrivate::unpack_fixext2(quint8 *p, quint8 *end, int &sz)
{
}
QVariant MsgPackPrivate::unpack_fixext4(quint8 *p, quint8 *end, int &sz)
{
}
QVariant MsgPackPrivate::unpack_fixext8(quint8 *p, quint8 *end, int &sz)
{
}
QVariant MsgPackPrivate::unpack_fixext16(quint8 *p, quint8 *end, int &sz)
{
}
QVariant MsgPackPrivate::unpack_str8(quint8 *p, quint8 *end, int &sz)
{
}
QVariant MsgPackPrivate::unpack_str16(quint8 *p, quint8 *end, int &sz)
{
}
QVariant MsgPackPrivate::unpack_str32(quint8 *p, quint8 *end, int &sz)
{
}
QVariant MsgPackPrivate::unpack_array16(quint8 *p, quint8 *end, int &sz)
{
}
QVariant MsgPackPrivate::unpack_array32(quint8 *p, quint8 *end, int &sz)
{
}
QVariant MsgPackPrivate::unpack_map16(quint8 *p, quint8 *end, int &sz)
{
}
QVariant MsgPackPrivate::unpack_map32(quint8 *p, quint8 *end, int &sz)
QVariant MsgPackPrivate::unpack_map32(quint8 *p, int &sz)
{
}

View File

@ -2,55 +2,67 @@
#define MSGPACK_P_H
#include <QVariant>
/* parser functions:
* QVariant _type_(quint8 *p, int &i);
* parses some type, which data is stored at p
* fill sz with type size
*/
namespace MsgPackPrivate
{
typedef QVariant (* type_parser_f)(quint8 *p, quint8 *end, int &sz);
extern type_parser_f parsers[32];
/* unpack functions:
* QVariant _type_(quint8 *p, int &sz);
* parses some type, which data is stored at p
* fill sz with type size (sz is there at the moment of calling
* parser function)
*/
typedef QVariant (* type_parser_f)(quint8 *p, int &sz);
extern type_parser_f unpackers[32];
// goes from p to end unpacking types with unpack_type function below
QVariant unpack(quint8 *p, quint8 *end);
QVariant unpack_type(quint8 *p, quint8 *end, int &sz);
QVariant unpack_positive_fixint(quint8 *p, quint8 *end, int &sz);
QVariant unpack_negative_fixint(quint8 *p, quint8 *end, int &sz);
QVariant unpack_fixmap(quint8 *p, quint8 *end, int &sz);
QVariant unpack_fixarray(quint8 *p, quint8 *end, int &sz);
QVariant unpack_fixstr(quint8 *p, quint8 *end, int &sz);
QVariant unpack_nil(quint8 *p, quint8 *end, int &sz);
QVariant unpack_never_used(quint8 *p, quint8 *end, int &sz);
QVariant unpack_false(quint8 *p, quint8 *end, int &sz);
QVariant unpack_true(quint8 *p, quint8 *end, int &sz);
QVariant unpack_bin8(quint8 *p, quint8 *end, int &sz);
QVariant unpack_bin16(quint8 *p, quint8 *end, int &sz);
QVariant unpack_bin32(quint8 *p, quint8 *end, int &sz);
QVariant unpack_ext8(quint8 *p, quint8 *end, int &sz);
QVariant unpack_ext16(quint8 *p, quint8 *end, int &sz);
QVariant unpack_ext32(quint8 *p, quint8 *end, int &sz);
QVariant unpack_float32(quint8 *p, quint8 *end, int &sz);
QVariant unpack_float64(quint8 *p, quint8 *end, int &sz);
QVariant unpack_uint8(quint8 *p, quint8 *end, int &sz);
QVariant unpack_uint16(quint8 *p, quint8 *end, int &sz);
QVariant unpack_uint32(quint8 *p, quint8 *end, int &sz);
QVariant unpack_uint64(quint8 *p, quint8 *end, int &sz);
QVariant unpack_int8(quint8 *p, quint8 *end, int &sz);
QVariant unpack_int16(quint8 *p, quint8 *end, int &sz);
QVariant unpack_int32(quint8 *p, quint8 *end, int &sz);
QVariant unpack_int64(quint8 *p, quint8 *end, int &sz);
QVariant unpack_fixext1(quint8 *p, quint8 *end, int &sz);
QVariant unpack_fixext2(quint8 *p, quint8 *end, int &sz);
QVariant unpack_fixext4(quint8 *p, quint8 *end, int &sz);
QVariant unpack_fixext8(quint8 *p, quint8 *end, int &sz);
QVariant unpack_fixext16(quint8 *p, quint8 *end, int &sz);
QVariant unpack_str8(quint8 *p, quint8 *end, int &sz);
QVariant unpack_str16(quint8 *p, quint8 *end, int &sz);
QVariant unpack_str32(quint8 *p, quint8 *end, int &sz);
QVariant unpack_array16(quint8 *p, quint8 *end, int &sz);
QVariant unpack_array32(quint8 *p, quint8 *end, int &sz);
QVariant unpack_map16(quint8 *p, quint8 *end, int &sz);
QVariant unpack_map32(quint8 *p, quint8 *end, int &sz);
// unpack some type, can be called recursively from other unpack functions
QVariant unpack_type(quint8 *p, int &sz);
QVariant unpack_array_len(quint8 *p, int &sz, int len);
quint32 unpack_uint8(quint8 *p);
quint32 unpack_uint16(quint8 *p);
quint32 unpack_uint32(quint8 *p);
QVariant unpack_positive_fixint(quint8 *p, int &sz);
QVariant unpack_negative_fixint(quint8 *p, int &sz);
QVariant unpack_fixmap(quint8 *p, int &sz);
QVariant unpack_fixarray(quint8 *p, int &sz);
QVariant unpack_fixstr(quint8 *p, int &sz);
QVariant unpack_nil(quint8 *p, int &sz);
QVariant unpack_never_used(quint8 *p, int &sz);
QVariant unpack_false(quint8 *p, int &sz);
QVariant unpack_true(quint8 *p, int &sz);
QVariant unpack_bin8(quint8 *p, int &sz);
QVariant unpack_bin16(quint8 *p, int &sz);
QVariant unpack_bin32(quint8 *p, int &sz);
QVariant unpack_ext8(quint8 *p, int &sz);
QVariant unpack_ext16(quint8 *p, int &sz);
QVariant unpack_ext32(quint8 *p, int &sz);
QVariant unpack_float32(quint8 *p, int &sz);
QVariant unpack_float64(quint8 *p, int &sz);
QVariant unpack_uint8(quint8 *p, int &sz);
QVariant unpack_uint16(quint8 *p, int &sz);
QVariant unpack_uint32(quint8 *p, int &sz);
QVariant unpack_uint64(quint8 *p, int &sz);
QVariant unpack_int8(quint8 *p, int &sz);
QVariant unpack_int16(quint8 *p, int &sz);
QVariant unpack_int32(quint8 *p, int &sz);
QVariant unpack_int64(quint8 *p, int &sz);
QVariant unpack_fixext1(quint8 *p, int &sz);
QVariant unpack_fixext2(quint8 *p, int &sz);
QVariant unpack_fixext4(quint8 *p, int &sz);
QVariant unpack_fixext8(quint8 *p, int &sz);
QVariant unpack_fixext16(quint8 *p, int &sz);
QVariant unpack_str8(quint8 *p, int &sz);
QVariant unpack_str16(quint8 *p, int &sz);
QVariant unpack_str32(quint8 *p, int &sz);
QVariant unpack_array16(quint8 *p, int &sz);
QVariant unpack_array32(quint8 *p, int &sz);
QVariant unpack_map16(quint8 *p, int &sz);
QVariant unpack_map32(quint8 *p, int &sz);
}
#endif // MSGPACK_P_H