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/*
* MessagePack packing routine
*
* Copyright (C) 2008 FURUHASHI Sadayuki
*
* 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 MSGPACK_PACK_INLINE_IMPL_H__
#define MSGPACK_PACK_INLINE_IMPL_H__
#if !defined(__LITTLE_ENDIAN__) && !defined(__BIG_ENDIAN__)
#if __BYTE_ORDER == __LITTLE_ENDIAN
#define __LITTLE_ENDIAN__
#elif __BYTE_ORDER == __BIG_ENDIAN
#define __BIG_ENDIAN__
#endif
#endif
#ifdef __LITTLE_ENDIAN__
#define STORE_BE16(d) \
((char*)&d)[1], ((char*)&d)[0]
#define STORE_BE32(d) \
((char*)&d)[3], ((char*)&d)[2], ((char*)&d)[1], ((char*)&d)[0]
#define STORE_BE64(d) \
((char*)&d)[7], ((char*)&d)[6], ((char*)&d)[5], ((char*)&d)[4], \
((char*)&d)[3], ((char*)&d)[2], ((char*)&d)[1], ((char*)&d)[0]
#elif __BIG_ENDIAN__
#define STORE_BE16(d) \
((char*)&d)[0], ((char*)&d)[1]
#define STORE_BE32(d) \
((char*)&d)[0], ((char*)&d)[1], ((char*)&d)[2], ((char*)&d)[3]
#define STORE_BE64(d) \
((char*)&d)[0], ((char*)&d)[1], ((char*)&d)[2], ((char*)&d)[3], \
((char*)&d)[4], ((char*)&d)[5], ((char*)&d)[6], ((char*)&d)[7]
#endif
#ifndef msgpack_pack_inline_func
#define msgpack_pack_inline_func(name) \
inline void msgpack_pack_##name
#endif
/*
* Integer
*/
// wrapper
msgpack_pack_inline_func(int)(msgpack_pack_context x, int d)
{
if(d < -32) {
if(d < -32768) { // signed 32
const unsigned char buf[5] = {0xd2, STORE_BE32(d)};
msgpack_pack_append_buffer(x, buf, 5);
} else if(d < -128) { // signed 16
const unsigned char buf[3] = {0xd1, STORE_BE16(d)};
msgpack_pack_append_buffer(x, buf, 3);
} else { // signed 8
const unsigned char buf[2] = {0xd0, (uint8_t)d};
msgpack_pack_append_buffer(x, buf, 2);
}
} else if(d < 128) { // fixnum
msgpack_pack_append_buffer(x, (uint8_t*)&d, 1);
} else {
if(d < 256) {
// unsigned 8
const unsigned char buf[2] = {0xcc, (uint8_t)d};
msgpack_pack_append_buffer(x, buf, 2);
} else if(d < 65536) {
// unsigned 16
const unsigned char buf[3] = {0xcd, STORE_BE16(d)};
msgpack_pack_append_buffer(x, buf, 3);
} else {
// unsigned 32
const unsigned char buf[5] = {0xce, STORE_BE32(d)};
msgpack_pack_append_buffer(x, buf, 5);
}
}
}
// wrapper
msgpack_pack_inline_func(unsigned_int)(msgpack_pack_context x, unsigned int d)
{
if(d < 128) {
// fixnum
msgpack_pack_append_buffer(x, (unsigned char*)&d, 1);
} else if(d < 256) {
// unsigned 8
const unsigned char buf[2] = {0xcc, (uint8_t)d};
msgpack_pack_append_buffer(x, buf, 2);
} else if(d < 65536) {
// unsigned 16
const unsigned char buf[3] = {0xcd, STORE_BE16(d)};
msgpack_pack_append_buffer(x, buf, 3);
} else {
// unsigned 32
const unsigned char buf[5] = {0xce, STORE_BE32(d)};
msgpack_pack_append_buffer(x, buf, 5);
}
}
msgpack_pack_inline_func(unsigned_int_8)(msgpack_pack_context x, uint8_t d)
{
if(d < 128) {
msgpack_pack_append_buffer(x, &d, 1);
} else {
const unsigned char buf[2] = {0xcc, d};
msgpack_pack_append_buffer(x, buf, 2);
}
}
msgpack_pack_inline_func(unsigned_int_16)(msgpack_pack_context x, uint16_t d)
{
const unsigned char buf[3] = {0xcd, STORE_BE16(d)};
msgpack_pack_append_buffer(x, buf, 3);
}
msgpack_pack_inline_func(unsigned_int_32)(msgpack_pack_context x, uint32_t d)
{
const unsigned char buf[5] = {0xce, STORE_BE32(d)};
msgpack_pack_append_buffer(x, buf, 5);
}
msgpack_pack_inline_func(unsigned_int_64)(msgpack_pack_context x, uint64_t d)
{
// FIXME optimization
const unsigned char buf[9] = {0xcf, STORE_BE64(d)};
msgpack_pack_append_buffer(x, buf, 9);
}
msgpack_pack_inline_func(signed_int_8)(msgpack_pack_context x, int8_t d)
{
if(d > 0) {
msgpack_pack_append_buffer(x, (uint8_t*)&d, 1);
} else if(d >= -32) {
msgpack_pack_append_buffer(x, (uint8_t*)&d, 1);
} else {
const unsigned char buf[2] = {0xd0, d};
msgpack_pack_append_buffer(x, buf, 2);
}
}
msgpack_pack_inline_func(signed_int_16)(msgpack_pack_context x, int16_t d)
{
const unsigned char buf[3] = {0xd1, STORE_BE16(d)};
msgpack_pack_append_buffer(x, buf, 3);
}
msgpack_pack_inline_func(signed_int_32)(msgpack_pack_context x, int32_t d)
{
const unsigned char buf[5] = {0xd2, STORE_BE32(d)};
msgpack_pack_append_buffer(x, buf, 5);
}
msgpack_pack_inline_func(signed_int_64)(msgpack_pack_context x, int64_t d)
{
// FIXME optimization
const unsigned char buf[9] = {0xd3, STORE_BE64(d)};
msgpack_pack_append_buffer(x, buf, 9);
}
/*
* Float
*/
msgpack_pack_inline_func(float)(msgpack_pack_context x, float d)
{
uint32_t n = *((uint32_t*)&d); // FIXME
const unsigned char buf[5] = {0xca, STORE_BE32(n)};
msgpack_pack_append_buffer(x, buf, 5);
}
msgpack_pack_inline_func(double)(msgpack_pack_context x, double d)
{
uint64_t n = *((uint64_t*)&d); // FIXME
const unsigned char buf[9] = {0xcb, STORE_BE64(n)};
msgpack_pack_append_buffer(x, buf, 9);
}
/*
* Nil
*/
msgpack_pack_inline_func(nil)(msgpack_pack_context x)
{
static const unsigned char d = 0xc0;
msgpack_pack_append_buffer(x, &d, 1);
}
/*
* Boolean
*/
msgpack_pack_inline_func(true)(msgpack_pack_context x)
{
static const unsigned char d = 0xc3;
msgpack_pack_append_buffer(x, &d, 1);
}
msgpack_pack_inline_func(false)(msgpack_pack_context x)
{
static const unsigned char d = 0xc2;
msgpack_pack_append_buffer(x, &d, 1);
}
/*
* Array
*/
msgpack_pack_inline_func(array)(msgpack_pack_context x, unsigned int n)
{
if(n < 16) {
unsigned char d = 0x90 | n;
msgpack_pack_append_buffer(x, &d, 1);
} else if(n < 65536) {
uint16_t d = (uint16_t)n;
unsigned char buf[3] = {0xdc, STORE_BE16(d)};
msgpack_pack_append_buffer(x, buf, 3);
} else {
uint32_t d = (uint32_t)n;
unsigned char buf[5] = {0xdd, STORE_BE32(d)};
msgpack_pack_append_buffer(x, buf, 5);
}
}
/*
* Map
*/
msgpack_pack_inline_func(map)(msgpack_pack_context x, unsigned int n)
{
if(n < 16) {
unsigned char d = 0x80 | n;
msgpack_pack_append_buffer(x, &d, 1);
} else if(n < 65536) {
uint16_t d = (uint16_t)n;
unsigned char buf[3] = {0xde, STORE_BE16(d)};
msgpack_pack_append_buffer(x, buf, 3);
} else {
uint32_t d = (uint32_t)n;
unsigned char buf[5] = {0xdf, STORE_BE32(d)};
msgpack_pack_append_buffer(x, buf, 5);
}
}
/*
* Raw
*/
msgpack_pack_inline_func(string)(msgpack_pack_context x, const char* b)
{
uint32_t l = strlen(b);
msgpack_pack_append_buffer(x, (const unsigned char*)b, l+1);
}
msgpack_pack_inline_func(raw)(msgpack_pack_context x, const void* b, size_t l)
{
if(l < 32) {
unsigned char d = 0xa0 | l;
msgpack_pack_append_buffer(x, &d, 1);
} else if(l < 65536) {
uint16_t d = (uint16_t)l;
unsigned char buf[3] = {0xda, STORE_BE16(d)};
msgpack_pack_append_buffer(x, buf, 3);
} else {
uint32_t d = (uint32_t)l;
unsigned char buf[5] = {0xdb, STORE_BE32(d)};
msgpack_pack_append_buffer(x, buf, 5);
}
msgpack_pack_append_buffer(x, (const unsigned char*)b, l);
}
#undef msgpack_pack_inline_func
#undef STORE_BE16
#undef STORE_BE32
#undef STORE_BE64
#endif /* msgpack/pack/inline_impl.h */
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