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msgpack_array.hpp
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msgpack_array.hpp
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//
// Add-on for serialization of arrays in MessagePack/C++
//
// Copyright (C) 2013 Kisli http://www.kisli.com
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//
#ifndef MSGPACKADDONS_ARRAY_INCLUDED
#define MSGPACKADDONS_ARRAY_INCLUDED
#include <msgpack.hpp>
/** Use case:
#include <msgpack.hpp>
#include <msgpack_array.hpp>
struct A {
int a;
unsigned char b[16]; // <-- this will be serialized and unserialized
// as an array
MSGPACK_DEFINE(a, b);
};
*/
namespace msgpack {
template <typename T, int N>
inline T* operator>>(object o, T (&v)[N]) {
if (o.type != type::ARRAY || o.via.array.size != N) {
throw type_error();
}
if (o.via.array.size > 0) {
object* p = o.via.array.ptr;
object* const pend = o.via.array.ptr + o.via.array.size;
T* it = &v[0];
do {
p->convert(it);
++p;
++it;
} while (p < pend);
} else {
for (int i = 0 ; i < N ; ++i) {
v[i] = T();
}
}
return v;
}
template <typename Stream, typename T, int N>
inline packer <Stream> &operator<<(packer<Stream> &o, const T (&v)[N]) {
o.pack_array(N);
for (int i = 0 ; i < N ; ++i) {
o.pack(v[i]);
}
return o;
}
template <typename T, int N>
inline void operator<<(object::with_zone &o, const T (&v)[N]) {
o.type = type::ARRAY;
if (N == 0) {
o.via.array.ptr = NULL;
o.via.array.size = 0;
} else {
object *p = static_cast <object *>(o.zone->malloc(sizeof(object) * N));
object *const pend = p + N;
o.via.array.ptr = p;
o.via.array.size = N;
const T *it = &v[0];
do {
*p = object(*it, o.zone);
++p;
++it;
} while (p < pend);
}
}
} // namespace msgpack
#endif // MSGPACKADDONS_ARRAY_INCLUDED