uhd: add cut-down rpclib source tree and import tool

1 files changed, 1719 insertions, 0 deletions

diff --git a/host/lib/deps/rpclib/include/rpc/msgpack/unpack.hpp b/host/lib/deps/rpclib/include/rpc/msgpack/unpack.hpp
new file mode 100644
index 000000000..4e00453c8
--- /dev/null
+++ b/host/lib/deps/rpclib/include/rpc/msgpack/unpack.hpp
@@ -0,0 +1,1719 @@
+//
+// MessagePack for C++ deserializing routine
+//
+// Copyright (C) 2008-2015 FURUHASHI Sadayuki and KONDO Takatoshi
+//
+//    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_UNPACK_HPP
+#define MSGPACK_UNPACK_HPP
+
+#include "rpc/msgpack/versioning.hpp"
+#include "object.hpp"
+#include "zone.hpp"
+#include "unpack_define.h"
+#include "cpp_config.hpp"
+#include "sysdep.h"
+
+#include <memory>
+#include <stdexcept>
+
+#if !defined(MSGPACK_USE_CPP03)
+#include <atomic>
+#endif
+
+
+#if defined(_MSC_VER)
+// avoiding confliction std::max, std::min, and macro in windows.h
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif
+#endif // defined(_MSC_VER)
+
+#ifdef _msgpack_atomic_counter_header
+#include _msgpack_atomic_counter_header
+#endif
+
+
+const size_t COUNTER_SIZE = sizeof(_msgpack_atomic_counter_t);
+
+#ifndef MSGPACK_UNPACKER_INIT_BUFFER_SIZE
+#define MSGPACK_UNPACKER_INIT_BUFFER_SIZE (64*1024)
+#endif
+
+#ifndef MSGPACK_UNPACKER_RESERVE_SIZE
+#define MSGPACK_UNPACKER_RESERVE_SIZE (32*1024)
+#endif
+
+
+// backward compatibility
+#ifndef MSGPACK_UNPACKER_DEFAULT_INITIAL_BUFFER_SIZE
+#define MSGPACK_UNPACKER_DEFAULT_INITIAL_BUFFER_SIZE MSGPACK_UNPACKER_INIT_BUFFER_SIZE
+#endif
+
+
+namespace clmdep_msgpack {
+
+/// @cond
+MSGPACK_API_VERSION_NAMESPACE(v1) {
+/// @endcond
+
+typedef bool (*unpack_reference_func)(clmdep_msgpack::type::object_type, std::size_t, void*);
+
+struct unpack_error : public std::runtime_error {
+    explicit unpack_error(const std::string& msg)
+        :std::runtime_error(msg) {}
+#if !defined(MSGPACK_USE_CPP03)
+    explicit unpack_error(const char* msg):
+        std::runtime_error(msg) {}
+#endif // !defined(MSGPACK_USE_CPP03)
+};
+
+struct parse_error : public unpack_error {
+    explicit parse_error(const std::string& msg)
+        :unpack_error(msg) {}
+#if !defined(MSGPACK_USE_CPP03)
+    explicit parse_error(const char* msg)
+        :unpack_error(msg) {}
+#endif // !defined(MSGPACK_USE_CPP03)
+};
+
+struct insufficient_bytes : public unpack_error {
+    explicit insufficient_bytes(const std::string& msg)
+        :unpack_error(msg) {}
+#if !defined(MSGPACK_USE_CPP03)
+    explicit insufficient_bytes(const char* msg)
+        :unpack_error(msg) {}
+#endif // !defined(MSGPACK_USE_CPP03)
+};
+
+struct size_overflow : public unpack_error {
+    explicit size_overflow(const std::string& msg)
+        :unpack_error(msg) {}
+#if !defined(MSGPACK_USE_CPP03)
+    explicit size_overflow(const char* msg)
+        :unpack_error(msg) {}
+#endif
+};
+
+struct array_size_overflow : public size_overflow {
+    array_size_overflow(const std::string& msg)
+        :size_overflow(msg) {}
+#if !defined(MSGPACK_USE_CPP03)
+    array_size_overflow(const char* msg)
+        :size_overflow(msg) {}
+#endif
+};
+
+struct map_size_overflow : public size_overflow {
+    map_size_overflow(const std::string& msg)
+        :size_overflow(msg) {}
+#if !defined(MSGPACK_USE_CPP03)
+    map_size_overflow(const char* msg)
+        :size_overflow(msg) {}
+#endif
+};
+
+struct str_size_overflow : public size_overflow {
+    str_size_overflow(const std::string& msg)
+        :size_overflow(msg) {}
+#if !defined(MSGPACK_USE_CPP03)
+    str_size_overflow(const char* msg)
+        :size_overflow(msg) {}
+#endif
+};
+
+struct bin_size_overflow : public size_overflow {
+    bin_size_overflow(const std::string& msg)
+        :size_overflow(msg) {}
+#if !defined(MSGPACK_USE_CPP03)
+    bin_size_overflow(const char* msg)
+        :size_overflow(msg) {}
+#endif
+};
+
+struct ext_size_overflow : public size_overflow {
+    ext_size_overflow(const std::string& msg)
+        :size_overflow(msg) {}
+#if !defined(MSGPACK_USE_CPP03)
+    ext_size_overflow(const char* msg)
+        :size_overflow(msg) {}
+#endif
+};
+
+struct depth_size_overflow : public size_overflow {
+    depth_size_overflow(const std::string& msg)
+        :size_overflow(msg) {}
+#if !defined(MSGPACK_USE_CPP03)
+    depth_size_overflow(const char* msg)
+        :size_overflow(msg) {}
+#endif
+};
+
+class unpack_limit {
+public:
+    unpack_limit(
+        std::size_t array = 0xffffffff,
+        std::size_t map = 0xffffffff,
+        std::size_t str = 0xffffffff,
+        std::size_t bin = 0xffffffff,
+        std::size_t ext = 0xffffffff,
+        std::size_t depth = 0xffffffff)
+        :array_(array),
+         map_(map),
+         str_(str),
+         bin_(bin),
+         ext_(ext),
+         depth_(depth) {}
+    std::size_t array() const { return array_; }
+    std::size_t map() const { return map_; }
+    std::size_t str() const { return str_; }
+    std::size_t bin() const { return bin_; }
+    std::size_t ext() const { return ext_; }
+    std::size_t depth() const { return depth_; }
+
+private:
+    std::size_t array_;
+    std::size_t map_;
+    std::size_t str_;
+    std::size_t bin_;
+    std::size_t ext_;
+    std::size_t depth_;
+};
+
+namespace detail {
+
+class unpack_user {
+public:
+    unpack_user(unpack_reference_func f = nullptr,
+                void* user_data = nullptr,
+                unpack_limit const& limit = unpack_limit())
+        :m_func(f), m_user_data(user_data), m_limit(limit) {}
+    clmdep_msgpack::zone const& zone() const { return *m_zone; }
+    clmdep_msgpack::zone& zone() { return *m_zone; }
+    void set_zone(clmdep_msgpack::zone& zone) { m_zone = &zone; }
+    bool referenced() const { return m_referenced; }
+    void set_referenced(bool referenced) { m_referenced = referenced; }
+    unpack_reference_func reference_func() const { return m_func; }
+    void* user_data() const { return m_user_data; }
+    unpack_limit const& limit() const { return m_limit; }
+    unpack_limit& limit() { return m_limit; }
+
+private:
+    clmdep_msgpack::zone* m_zone;
+    bool m_referenced;
+    unpack_reference_func m_func;
+    void* m_user_data;
+    unpack_limit m_limit;
+};
+
+inline void unpack_uint8(uint8_t d, clmdep_msgpack::object& o)
+{ o.type = clmdep_msgpack::type::POSITIVE_INTEGER; o.via.u64 = d; }
+
+inline void unpack_uint16(uint16_t d, clmdep_msgpack::object& o)
+{ o.type = clmdep_msgpack::type::POSITIVE_INTEGER; o.via.u64 = d; }
+
+inline void unpack_uint32(uint32_t d, clmdep_msgpack::object& o)
+{ o.type = clmdep_msgpack::type::POSITIVE_INTEGER; o.via.u64 = d; }
+
+inline void unpack_uint64(uint64_t d, clmdep_msgpack::object& o)
+{ o.type = clmdep_msgpack::type::POSITIVE_INTEGER; o.via.u64 = d; }
+
+inline void unpack_int8(int8_t d, clmdep_msgpack::object& o)
+{ if(d >= 0) { o.type = clmdep_msgpack::type::POSITIVE_INTEGER; o.via.u64 = d; }
+        else { o.type = clmdep_msgpack::type::NEGATIVE_INTEGER; o.via.i64 = d; } }
+
+inline void unpack_int16(int16_t d, clmdep_msgpack::object& o)
+{ if(d >= 0) { o.type = clmdep_msgpack::type::POSITIVE_INTEGER; o.via.u64 = d; }
+        else { o.type = clmdep_msgpack::type::NEGATIVE_INTEGER; o.via.i64 = d; } }
+
+inline void unpack_int32(int32_t d, clmdep_msgpack::object& o)
+{ if(d >= 0) { o.type = clmdep_msgpack::type::POSITIVE_INTEGER; o.via.u64 = d; }
+        else { o.type = clmdep_msgpack::type::NEGATIVE_INTEGER; o.via.i64 = d; } }
+
+inline void unpack_int64(int64_t d, clmdep_msgpack::object& o)
+{ if(d >= 0) { o.type = clmdep_msgpack::type::POSITIVE_INTEGER; o.via.u64 = d; }
+        else { o.type = clmdep_msgpack::type::NEGATIVE_INTEGER; o.via.i64 = d; } }
+
+inline void unpack_float(float d, clmdep_msgpack::object& o)
+{ o.type = clmdep_msgpack::type::FLOAT; o.via.f64 = d; }
+
+inline void unpack_double(double d, clmdep_msgpack::object& o)
+{ o.type = clmdep_msgpack::type::FLOAT; o.via.f64 = d; }
+
+inline void unpack_nil(clmdep_msgpack::object& o)
+{ o.type = clmdep_msgpack::type::NIL; }
+
+inline void unpack_true(clmdep_msgpack::object& o)
+{ o.type = clmdep_msgpack::type::BOOLEAN; o.via.boolean = true; }
+
+inline void unpack_false(clmdep_msgpack::object& o)
+{ o.type = clmdep_msgpack::type::BOOLEAN; o.via.boolean = false; }
+
+struct unpack_array {
+    void operator()(unpack_user& u, uint32_t n, clmdep_msgpack::object& o) const {
+        if (n > u.limit().array()) throw clmdep_msgpack::array_size_overflow("array size overflow");
+        o.type = clmdep_msgpack::type::ARRAY;
+        o.via.array.size = 0;
+        o.via.array.ptr = static_cast<clmdep_msgpack::object*>(u.zone().allocate_align(n*sizeof(clmdep_msgpack::object)));
+    }
+};
+
+inline void unpack_array_item(clmdep_msgpack::object& c, clmdep_msgpack::object const& o)
+{
+#if defined(__GNUC__) && !defined(__clang__)
+    std::memcpy(&c.via.array.ptr[c.via.array.size++], &o, sizeof(clmdep_msgpack::object));
+#else  /* __GNUC__ && !__clang__ */
+    c.via.array.ptr[c.via.array.size++] = o;
+#endif /* __GNUC__ && !__clang__ */
+}
+
+struct unpack_map {
+    void operator()(unpack_user& u, uint32_t n, clmdep_msgpack::object& o) const {
+        if (n > u.limit().map()) throw clmdep_msgpack::map_size_overflow("map size overflow");
+        o.type = clmdep_msgpack::type::MAP;
+        o.via.map.size = 0;
+        o.via.map.ptr = static_cast<clmdep_msgpack::object_kv*>(u.zone().allocate_align(n*sizeof(clmdep_msgpack::object_kv)));
+    }
+};
+
+inline void unpack_map_item(clmdep_msgpack::object& c, clmdep_msgpack::object const& k, clmdep_msgpack::object const& v)
+{
+#if defined(__GNUC__) && !defined(__clang__)
+    std::memcpy(&c.via.map.ptr[c.via.map.size].key, &k, sizeof(clmdep_msgpack::object));
+    std::memcpy(&c.via.map.ptr[c.via.map.size].val, &v, sizeof(clmdep_msgpack::object));
+#else  /* __GNUC__ && !__clang__ */
+    c.via.map.ptr[c.via.map.size].key = k;
+    c.via.map.ptr[c.via.map.size].val = v;
+#endif /* __GNUC__ && !__clang__ */
+    ++c.via.map.size;
+}
+
+inline void unpack_str(unpack_user& u, const char* p, uint32_t l, clmdep_msgpack::object& o)
+{
+    o.type = clmdep_msgpack::type::STR;
+    if (u.reference_func() && u.reference_func()(o.type, l, u.user_data())) {
+        o.via.str.ptr = p;
+        u.set_referenced(true);
+    }
+    else {
+        if (l > u.limit().str()) throw clmdep_msgpack::str_size_overflow("str size overflow");
+        char* tmp = static_cast<char*>(u.zone().allocate_align(l));
+        std::memcpy(tmp, p, l);
+        o.via.str.ptr = tmp;
+    }
+    o.via.str.size = l;
+}
+
+inline void unpack_bin(unpack_user& u, const char* p, uint32_t l, clmdep_msgpack::object& o)
+{
+    o.type = clmdep_msgpack::type::BIN;
+    if (u.reference_func() && u.reference_func()(o.type, l, u.user_data())) {
+        o.via.bin.ptr = p;
+        u.set_referenced(true);
+    }
+    else {
+        if (l > u.limit().bin()) throw clmdep_msgpack::bin_size_overflow("bin size overflow");
+        char* tmp = static_cast<char*>(u.zone().allocate_align(l));
+        std::memcpy(tmp, p, l);
+        o.via.bin.ptr = tmp;
+    }
+    o.via.bin.size = l;
+}
+
+inline void unpack_ext(unpack_user& u, const char* p, std::size_t l, clmdep_msgpack::object& o)
+{
+    o.type = clmdep_msgpack::type::EXT;
+    if (u.reference_func() && u.reference_func()(o.type, l, u.user_data())) {
+        o.via.ext.ptr = p;
+        u.set_referenced(true);
+    }
+    else {
+        if (l > u.limit().ext()) throw clmdep_msgpack::ext_size_overflow("ext size overflow");
+        char* tmp = static_cast<char*>(u.zone().allocate_align(l));
+        std::memcpy(tmp, p, l);
+        o.via.ext.ptr = tmp;
+    }
+    o.via.ext.size = static_cast<uint32_t>(l - 1);
+}
+
+
+class unpack_stack {
+public:
+    clmdep_msgpack::object const& obj() const { return m_obj; }
+    clmdep_msgpack::object& obj() { return m_obj; }
+    void set_obj(clmdep_msgpack::object const& obj) { m_obj = obj; }
+    std::size_t count() const { return m_count; }
+    void set_count(std::size_t count) { m_count = count; }
+    std::size_t decr_count() { return --m_count; }
+    uint32_t container_type() const { return m_container_type; }
+    void set_container_type(uint32_t container_type) { m_container_type = container_type; }
+    clmdep_msgpack::object const& map_key() const { return m_map_key; }
+    void set_map_key(clmdep_msgpack::object const& map_key) { m_map_key = map_key; }
+private:
+    clmdep_msgpack::object m_obj;
+    std::size_t m_count;
+    uint32_t m_container_type;
+    clmdep_msgpack::object m_map_key;
+};
+
+inline void init_count(void* buffer)
+{
+#if defined(MSGPACK_USE_CPP03)
+    *reinterpret_cast<volatile _msgpack_atomic_counter_t*>(buffer) = 1;
+#else  // defined(MSGPACK_USE_CPP03)
+    new (buffer) std::atomic<unsigned int>(1);
+#endif // defined(MSGPACK_USE_CPP03)
+}
+
+inline void decr_count(void* buffer)
+{
+#if defined(MSGPACK_USE_CPP03)
+    if(_msgpack_sync_decr_and_fetch(reinterpret_cast<volatile _msgpack_atomic_counter_t*>(buffer)) == 0) {
+        free(buffer);
+    }
+#else  // defined(MSGPACK_USE_CPP03)
+    if (--*reinterpret_cast<std::atomic<unsigned int>*>(buffer) == 0) {
+        free(buffer);
+    }
+#endif // defined(MSGPACK_USE_CPP03)
+}
+
+inline void incr_count(void* buffer)
+{
+#if defined(MSGPACK_USE_CPP03)
+    _msgpack_sync_incr_and_fetch(reinterpret_cast<volatile _msgpack_atomic_counter_t*>(buffer));
+#else  // defined(MSGPACK_USE_CPP03)
+    ++*reinterpret_cast<std::atomic<unsigned int>*>(buffer);
+#endif // defined(MSGPACK_USE_CPP03)
+}
+
+#if defined(MSGPACK_USE_CPP03)
+inline _msgpack_atomic_counter_t get_count(void* buffer)
+{
+    return *reinterpret_cast<volatile _msgpack_atomic_counter_t*>(buffer);
+}
+#else  // defined(MSGPACK_USE_CPP03)
+inline std::atomic<unsigned int> const& get_count(void* buffer)
+{
+    return *reinterpret_cast<std::atomic<unsigned int>*>(buffer);
+}
+#endif // defined(MSGPACK_USE_CPP03)
+
+struct fix_tag {
+    char f1[65]; // FIXME unique size is required. or use is_same meta function.
+};
+
+template <typename T>
+struct value {
+    typedef T type;
+};
+template <>
+struct value<fix_tag> {
+    typedef uint32_t type;
+};
+
+template <typename T>
+inline void load(uint32_t& dst, const char* n, typename clmdep_msgpack::enable_if<sizeof(T) == sizeof(fix_tag)>::type* = nullptr) {
+    dst = static_cast<uint32_t>(*reinterpret_cast<const uint8_t*>(n)) & 0x0f;
+}
+
+template <typename T>
+inline void load(T& dst, const char* n, typename clmdep_msgpack::enable_if<sizeof(T) == 1>::type* = nullptr) {
+    dst = static_cast<T>(*reinterpret_cast<const uint8_t*>(n));
+}
+
+template <typename T>
+inline void load(T& dst, const char* n, typename clmdep_msgpack::enable_if<sizeof(T) == 2>::type* = nullptr) {
+    _msgpack_load16(T, n, &dst);
+}
+
+template <typename T>
+inline void load(T& dst, const char* n, typename clmdep_msgpack::enable_if<sizeof(T) == 4>::type* = nullptr) {
+    _msgpack_load32(T, n, &dst);
+}
+
+template <typename T>
+inline void load(T& dst, const char* n, typename clmdep_msgpack::enable_if<sizeof(T) == 8>::type* = nullptr) {
+    _msgpack_load64(T, n, &dst);
+}
+
+class context {
+public:
+    context(unpack_reference_func f, void* user_data, unpack_limit const& limit)
+        :m_trail(0), m_user(f, user_data, limit), m_cs(MSGPACK_CS_HEADER)
+    {
+        m_stack.reserve(MSGPACK_EMBED_STACK_SIZE);
+        m_stack.push_back(unpack_stack());
+    }
+
+    void init()
+    {
+        m_cs = MSGPACK_CS_HEADER;
+        m_trail = 0;
+        m_stack.resize(1);
+        m_stack[0].set_obj(clmdep_msgpack::object());
+    }
+
+    clmdep_msgpack::object const& data() const
+    {
+        return m_stack[0].obj();
+    }
+
+    unpack_user& user()
+    {
+        return m_user;
+    }
+
+    unpack_user const& user() const
+    {
+        return m_user;
+    }
+
+    int execute(const char* data, std::size_t len, std::size_t& off);
+
+private:
+    template <typename T>
+    static uint32_t next_cs(T p)
+    {
+        return static_cast<uint32_t>(*p) & 0x1f;
+    }
+
+    template <typename T, typename Func>
+    int push_aggregate(
+        Func const& f,
+        uint32_t container_type,
+        clmdep_msgpack::object& obj,
+        const char* load_pos,
+        std::size_t& off) {
+        typename value<T>::type tmp;
+        load<T>(tmp, load_pos);
+        f(m_user, tmp, m_stack.back().obj());
+        if(tmp == 0) {
+            obj = m_stack.back().obj();
+            int ret = push_proc(obj, off);
+            if (ret != 0) return ret;
+        }
+        else {
+            m_stack.back().set_container_type(container_type);
+            m_stack.back().set_count(tmp);
+            if (m_stack.size() <= m_user.limit().depth()) {
+                m_stack.push_back(unpack_stack());
+            }
+            else {
+                throw clmdep_msgpack::depth_size_overflow("depth size overflow");
+            }
+            m_cs = MSGPACK_CS_HEADER;
+            ++m_current;
+        }
+        return 0;
+    }
+
+    int push_item(clmdep_msgpack::object& obj) {
+        bool finish = false;
+        while (!finish) {
+            if(m_stack.size() == 1) {
+                return 1;
+            }
+            unpack_stack& sp = *(m_stack.end() - 2);
+            switch(sp.container_type()) {
+            case MSGPACK_CT_ARRAY_ITEM:
+                unpack_array_item(sp.obj(), obj);
+                if(sp.decr_count() == 0) {
+                    obj = sp.obj();
+                    m_stack.pop_back();
+                }
+                else {
+                    finish = true;
+                }
+                break;
+            case MSGPACK_CT_MAP_KEY:
+                sp.set_map_key(obj);
+                sp.set_container_type(MSGPACK_CT_MAP_VALUE);
+                finish = true;
+                break;
+            case MSGPACK_CT_MAP_VALUE:
+                unpack_map_item(sp.obj(), sp.map_key(), obj);
+                if(sp.decr_count() == 0) {
+                    obj = sp.obj();
+                    m_stack.pop_back();
+                }
+                else {
+                    sp.set_container_type(MSGPACK_CT_MAP_KEY);
+                    finish = true;
+                }
+                break;
+            default:
+                return -1;
+            }
+        }
+        return 0;
+    }
+
+    int push_proc(clmdep_msgpack::object& obj, std::size_t& off) {
+        int ret = push_item(obj);
+        if (ret > 0) {
+            m_stack[0].set_obj(obj);
+            ++m_current;
+            /*printf("-- finish --\n"); */
+            off = m_current - m_start;
+        }
+        else if (ret < 0) {
+            off = m_current - m_start;
+        }
+        else {
+            m_cs = MSGPACK_CS_HEADER;
+            ++m_current;
+        }
+        return ret;
+    }
+
+    template <std::size_t N>
+    static void check_ext_size(std::size_t /*size*/) {
+    }
+
+private:
+    char const* m_start;
+    char const* m_current;
+
+    std::size_t m_trail;
+    unpack_user m_user;
+    uint32_t m_cs;
+    std::vector<unpack_stack> m_stack;
+};
+
+template <>
+inline void context::check_ext_size<4>(std::size_t size) {
+    if (size == 0xffffffff) throw clmdep_msgpack::ext_size_overflow("ext size overflow");
+}
+
+inline int context::execute(const char* data, std::size_t len, std::size_t& off)
+{
+    assert(len >= off);
+
+    m_start = data;
+    m_current = data + off;
+    const char* const pe = data + len;
+    const char* n = nullptr;
+
+    clmdep_msgpack::object obj;
+
+    if(m_current == pe) {
+        off = m_current - m_start;
+        return 0;
+    }
+    bool fixed_trail_again = false;
+    do {
+        if (m_cs == MSGPACK_CS_HEADER) {
+            fixed_trail_again = false;
+            int selector = *reinterpret_cast<const unsigned char*>(m_current);
+            if (0x00 <= selector && selector <= 0x7f) { // Positive Fixnum
+                unpack_uint8(*reinterpret_cast<const uint8_t*>(m_current), obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } else if(0xe0 <= selector && selector <= 0xff) { // Negative Fixnum
+                unpack_int8(*reinterpret_cast<const int8_t*>(m_current), obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } else if (0xc4 <= selector && selector <= 0xdf) {
+                const uint32_t trail[] = {
+                    1, // bin     8  0xc4
+                    2, // bin    16  0xc5
+                    4, // bin    32  0xc6
+                    1, // ext     8  0xc7
+                    2, // ext    16  0xc8
+                    4, // ext    32  0xc9
+                    4, // float  32  0xca
+                    8, // float  64  0xcb
+                    1, // uint    8  0xcc
+                    2, // uint   16  0xcd
+                    4, // uint   32  0xce
+                    8, // uint   64  0xcf
+                    1, // int     8  0xd0
+                    2, // int    16  0xd1
+                    4, // int    32  0xd2
+                    8, // int    64  0xd3
+                    2, // fixext  1  0xd4
+                    3, // fixext  2  0xd5
+                    5, // fixext  4  0xd6
+                    9, // fixext  8  0xd7
+                    17,// fixext 16  0xd8
+                    1, // str     8  0xd9
+                    2, // str    16  0xda
+                    4, // str    32  0xdb
+                    2, // array  16  0xdc
+                    4, // array  32  0xdd
+                    2, // map    16  0xde
+                    4, // map    32  0xdf
+                };
+                m_trail = trail[selector - 0xc4];
+                m_cs = next_cs(m_current);
+                fixed_trail_again = true;
+            } else if(0xa0 <= selector && selector <= 0xbf) { // FixStr
+                m_trail = static_cast<uint32_t>(*m_current) & 0x1f;
+                if(m_trail == 0) {
+                    unpack_str(m_user, n, static_cast<uint32_t>(m_trail), obj);
+                    int ret = push_proc(obj, off);
+                    if (ret != 0) return ret;
+                }
+                else {
+                    m_cs = MSGPACK_ACS_STR_VALUE;
+                    fixed_trail_again = true;
+                }
+
+            } else if(0x90 <= selector && selector <= 0x9f) { // FixArray
+                int ret = push_aggregate<fix_tag>(
+                    unpack_array(), MSGPACK_CT_ARRAY_ITEM, obj, m_current, off);
+                if (ret != 0) return ret;
+            } else if(0x80 <= selector && selector <= 0x8f) { // FixMap
+                int ret = push_aggregate<fix_tag>(
+                    unpack_map(), MSGPACK_CT_MAP_KEY, obj, m_current, off);
+                if (ret != 0) return ret;
+            } else if(selector == 0xc2) { // false
+                unpack_false(obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } else if(selector == 0xc3) { // true
+                unpack_true(obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } else if(selector == 0xc0) { // nil
+                unpack_nil(obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } else {
+                off = m_current - m_start;
+                return -1;
+            }
+            // end MSGPACK_CS_HEADER
+        }
+        if (m_cs != MSGPACK_CS_HEADER || fixed_trail_again) {
+            if (fixed_trail_again) {
+                ++m_current;
+                fixed_trail_again = false;
+            }
+            if(static_cast<std::size_t>(pe - m_current) < m_trail) {
+                off = m_current - m_start;
+                return 0;
+            }
+            n = m_current;
+            m_current += m_trail - 1;
+            switch(m_cs) {
+                //case MSGPACK_CS_
+                //case MSGPACK_CS_
+            case MSGPACK_CS_FLOAT: {
+                union { uint32_t i; float f; } mem;
+                load<uint32_t>(mem.i, n);
+                unpack_float(mem.f, obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } break;
+            case MSGPACK_CS_DOUBLE: {
+                union { uint64_t i; double f; } mem;
+                load<uint64_t>(mem.i, n);
+#if defined(TARGET_OS_IPHONE)
+                // ok
+#elif defined(__arm__) && !(__ARM_EABI__) // arm-oabi
+                // https://github.com/msgpack/msgpack-perl/pull/1
+                mem.i = (mem.i & 0xFFFFFFFFUL) << 32UL | (mem.i >> 32UL);
+#endif
+                unpack_double(mem.f, obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } break;
+            case MSGPACK_CS_UINT_8: {
+                uint8_t tmp;
+                load<uint8_t>(tmp, n);
+                unpack_uint8(tmp, obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } break;
+            case MSGPACK_CS_UINT_16: {
+                uint16_t tmp;
+                load<uint16_t>(tmp, n);
+                unpack_uint16(tmp, obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } break;
+            case MSGPACK_CS_UINT_32: {
+                uint32_t tmp;
+                load<uint32_t>(tmp, n);
+                unpack_uint32(tmp, obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } break;
+            case MSGPACK_CS_UINT_64: {
+                uint64_t tmp;
+                load<uint64_t>(tmp, n);
+                unpack_uint64(tmp, obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } break;
+            case MSGPACK_CS_INT_8: {
+                int8_t tmp;
+                load<int8_t>(tmp, n);
+                unpack_int8(tmp, obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } break;
+            case MSGPACK_CS_INT_16: {
+                int16_t tmp;
+                load<int16_t>(tmp, n);
+                unpack_int16(tmp, obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } break;
+            case MSGPACK_CS_INT_32: {
+                int32_t tmp;
+                load<int32_t>(tmp, n);
+                unpack_int32(tmp, obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } break;
+            case MSGPACK_CS_INT_64: {
+                int64_t tmp;
+                load<int64_t>(tmp, n);
+                unpack_int64(tmp, obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } break;
+            case MSGPACK_CS_FIXEXT_1: {
+                unpack_ext(m_user, n, 1+1, obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } break;
+            case MSGPACK_CS_FIXEXT_2: {
+                unpack_ext(m_user, n, 2+1, obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } break;
+            case MSGPACK_CS_FIXEXT_4: {
+                unpack_ext(m_user, n, 4+1, obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } break;
+            case MSGPACK_CS_FIXEXT_8: {
+                unpack_ext(m_user, n, 8+1, obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } break;
+            case MSGPACK_CS_FIXEXT_16: {
+                unpack_ext(m_user, n, 16+1, obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } break;
+            case MSGPACK_CS_STR_8: {
+                uint8_t tmp;
+                load<uint8_t>(tmp, n);
+                m_trail = tmp;
+                if(m_trail == 0) {
+                    unpack_str(m_user, n, static_cast<uint32_t>(m_trail), obj);
+                    int ret = push_proc(obj, off);
+                    if (ret != 0) return ret;
+                }
+                else {
+                    m_cs = MSGPACK_ACS_STR_VALUE;
+                    fixed_trail_again = true;
+                }
+            } break;
+            case MSGPACK_CS_BIN_8: {
+                uint8_t tmp;
+                load<uint8_t>(tmp, n);
+                m_trail = tmp;
+                if(m_trail == 0) {
+                    unpack_bin(m_user, n, static_cast<uint32_t>(m_trail), obj);
+                    int ret = push_proc(obj, off);
+                    if (ret != 0) return ret;
+                }
+                else {
+                    m_cs = MSGPACK_ACS_BIN_VALUE;
+                    fixed_trail_again = true;
+                }
+            } break;
+            case MSGPACK_CS_EXT_8: {
+                uint8_t tmp;
+                load<uint8_t>(tmp, n);
+                m_trail = tmp + 1;
+                if(m_trail == 0) {
+                    unpack_ext(m_user, n, m_trail, obj);
+                    int ret = push_proc(obj, off);
+                    if (ret != 0) return ret;
+                }
+                else {
+                    m_cs = MSGPACK_ACS_EXT_VALUE;
+                    fixed_trail_again = true;
+                }
+            } break;
+            case MSGPACK_CS_STR_16: {
+                uint16_t tmp;
+                load<uint16_t>(tmp, n);
+                m_trail = tmp;
+                if(m_trail == 0) {
+                    unpack_str(m_user, n, static_cast<uint32_t>(m_trail), obj);
+                    int ret = push_proc(obj, off);
+                    if (ret != 0) return ret;
+                }
+                else {
+                    m_cs = MSGPACK_ACS_STR_VALUE;
+                    fixed_trail_again = true;
+                }
+            } break;
+            case MSGPACK_CS_BIN_16: {
+                uint16_t tmp;
+                load<uint16_t>(tmp, n);
+                m_trail = tmp;
+                if(m_trail == 0) {
+                    unpack_bin(m_user, n, static_cast<uint32_t>(m_trail), obj);
+                    int ret = push_proc(obj, off);
+                    if (ret != 0) return ret;
+                }
+                else {
+                    m_cs = MSGPACK_ACS_BIN_VALUE;
+                    fixed_trail_again = true;
+                }
+            } break;
+            case MSGPACK_CS_EXT_16: {
+                uint16_t tmp;
+                load<uint16_t>(tmp, n);
+                m_trail = tmp + 1;
+                if(m_trail == 0) {
+                    unpack_ext(m_user, n, m_trail, obj);
+                    int ret = push_proc(obj, off);
+                    if (ret != 0) return ret;
+                }
+                else {
+                    m_cs = MSGPACK_ACS_EXT_VALUE;
+                    fixed_trail_again = true;
+                }
+            } break;
+            case MSGPACK_CS_STR_32: {
+                uint32_t tmp;
+                load<uint32_t>(tmp, n);
+                m_trail = tmp;
+                if(m_trail == 0) {
+                    unpack_str(m_user, n, static_cast<uint32_t>(m_trail), obj);
+                    int ret = push_proc(obj, off);
+                    if (ret != 0) return ret;
+                }
+                else {
+                    m_cs = MSGPACK_ACS_STR_VALUE;
+                    fixed_trail_again = true;
+                }
+            } break;
+            case MSGPACK_CS_BIN_32: {
+                uint32_t tmp;
+                load<uint32_t>(tmp, n);
+                m_trail = tmp;
+                if(m_trail == 0) {
+                    unpack_bin(m_user, n, static_cast<uint32_t>(m_trail), obj);
+                    int ret = push_proc(obj, off);
+                    if (ret != 0) return ret;
+                }
+                else {
+                    m_cs = MSGPACK_ACS_BIN_VALUE;
+                    fixed_trail_again = true;
+                }
+            } break;
+            case MSGPACK_CS_EXT_32: {
+                uint32_t tmp;
+                load<uint32_t>(tmp, n);
+                check_ext_size<sizeof(std::size_t)>(tmp);
+                m_trail = tmp;
+                ++m_trail;
+                if(m_trail == 0) {
+                    unpack_ext(m_user, n, m_trail, obj);
+                    int ret = push_proc(obj, off);
+                    if (ret != 0) return ret;
+                }
+                else {
+                    m_cs = MSGPACK_ACS_EXT_VALUE;
+                    fixed_trail_again = true;
+                }
+            } break;
+            case MSGPACK_ACS_STR_VALUE: {
+                unpack_str(m_user, n, static_cast<uint32_t>(m_trail), obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } break;
+            case MSGPACK_ACS_BIN_VALUE: {
+                unpack_bin(m_user, n, static_cast<uint32_t>(m_trail), obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } break;
+            case MSGPACK_ACS_EXT_VALUE: {
+                unpack_ext(m_user, n, m_trail, obj);
+                int ret = push_proc(obj, off);
+                if (ret != 0) return ret;
+            } break;
+            case MSGPACK_CS_ARRAY_16: {
+                int ret = push_aggregate<uint16_t>(
+                    unpack_array(), MSGPACK_CT_ARRAY_ITEM, obj, n, off);
+                if (ret != 0) return ret;
+            } break;
+            case MSGPACK_CS_ARRAY_32: {
+                /* FIXME security guard */
+                int ret = push_aggregate<uint32_t>(
+                    unpack_array(), MSGPACK_CT_ARRAY_ITEM, obj, n, off);
+                if (ret != 0) return ret;
+            } break;
+            case MSGPACK_CS_MAP_16: {
+                int ret = push_aggregate<uint16_t>(
+                    unpack_map(), MSGPACK_CT_MAP_KEY, obj, n, off);
+                if (ret != 0) return ret;
+            } break;
+            case MSGPACK_CS_MAP_32: {
+                /* FIXME security guard */
+                int ret = push_aggregate<uint32_t>(
+                    unpack_map(), MSGPACK_CT_MAP_KEY, obj, n, off);
+                if (ret != 0) return ret;
+            } break;
+            default:
+                off = m_current - m_start;
+                return -1;
+            }
+        }
+    } while(m_current != pe);
+
+    off = m_current - m_start;
+    return 0;
+}
+
+} // detail
+
+
+typedef object_handle unpacked;
+
+class unpacker {
+public:
+    unpacker(unpack_reference_func f = &unpacker::default_reference_func,
+             void* user_data = nullptr,
+             std::size_t init_buffer_size = MSGPACK_UNPACKER_INIT_BUFFER_SIZE,
+             unpack_limit const& limit = unpack_limit());
+
+#if !defined(MSGPACK_USE_CPP03)
+    unpacker(unpacker&& other);
+    unpacker& operator=(unpacker&& other);
+#endif // !defined(MSGPACK_USE_CPP03)
+
+    ~unpacker();
+
+public:
+    /*! 1. reserve buffer. at least `size' bytes of capacity will be ready */
+    void reserve_buffer(std::size_t size = MSGPACK_UNPACKER_RESERVE_SIZE);
+
+    /*! 2. read data to the buffer() up to buffer_capacity() bytes */
+    char* buffer();
+    std::size_t buffer_capacity() const;
+
+    /*! 3. specify the number of bytes actually copied */
+    void buffer_consumed(std::size_t size);
+
+    /*! 4. repeat next() until it retunrs false */
+    bool next(unpacked* result);
+    bool next(unpacked& result, bool& referenced);
+    bool next(unpacked& result);
+
+    /*! 5. check if the size of message doesn't exceed assumption. */
+    std::size_t message_size() const;
+
+    // Basic usage of the unpacker is as following:
+    //
+    // unpacker pac;
+    // while( /* input is readable */ ) {
+    //
+    //     // 1.
+    //     pac.reserve_buffer(32*1024);
+    //
+    //     // 2.
+    //     std::size_t bytes = input.readsome(pac.buffer(), pac.buffer_capacity());
+    //
+    //     // error handling ...
+    //
+    //     // 3.
+    //     pac.buffer_consumed(bytes);
+    //
+    //     // 4.
+    //     unpacked result;
+    //     while(pac.next(&result)) {
+    //         // do some with the object with the zone.
+    //         object obj = result.get();
+    //         std::auto_ptr<msgpack:zone> z = result.zone();
+    //         on_message(obj, z);
+    //
+    //         //// boost::shared_ptr is also usable:
+    //         // boost::shared_ptr<zone> life(z.release());
+    //         // on_message(result.get(), life);
+    //     }
+    //
+    //     // 5.
+    //     if(pac.message_size() > 10*1024*1024) {
+    //         throw std::runtime_error("message is too large");
+    //     }
+    // }
+    //
+
+    /*! for backward compatibility */
+    bool execute();
+
+    /*! for backward compatibility */
+    clmdep_msgpack::object const& data();
+
+    /*! for backward compatibility */
+    clmdep_msgpack::zone* release_zone();
+
+    /*! for backward compatibility */
+    void reset_zone();
+
+    /*! for backward compatibility */
+    void reset();
+
+public:
+    // These functions are usable when non-MessagePack message follows after
+    // MessagePack message.
+    std::size_t parsed_size() const;
+
+    /*! get address of the buffer that is not parsed */
+    char* nonparsed_buffer();
+    std::size_t nonparsed_size() const;
+
+    /*! skip specified size of non-parsed buffer, leaving the buffer */
+    // Note that the `size' argument must be smaller than nonparsed_size()
+    void skip_nonparsed_buffer(std::size_t size);
+
+    /*! remove unparsed buffer from unpacker */
+    // Note that reset() leaves non-parsed buffer.
+    void remove_nonparsed_buffer();
+
+private:
+    void expand_buffer(std::size_t size);
+    int execute_imp();
+    bool flush_zone();
+    static bool default_reference_func(clmdep_msgpack::type::object_type type, std::size_t len, void*);
+
+private:
+    char* m_buffer;
+    std::size_t m_used;
+    std::size_t m_free;
+    std::size_t m_off;
+    std::size_t m_parsed;
+    clmdep_msgpack::unique_ptr<clmdep_msgpack::zone> m_z;
+    std::size_t m_initial_buffer_size;
+    detail::context m_ctx;
+
+#if defined(MSGPACK_USE_CPP03)
+private:
+    unpacker(const unpacker&);
+    unpacker& operator=(const unpacker&);
+#else  // defined(MSGPACK_USE_CPP03)
+    unpacker(const unpacker&) = delete;
+    unpacker& operator=(const unpacker&) = delete;
+#endif // defined(MSGPACK_USE_CPP03)
+};
+
+unpacked unpack(
+    const char* data, std::size_t len, std::size_t& off, bool& referenced,
+    unpack_reference_func f = nullptr, void* user_data = nullptr,
+    unpack_limit const& limit = unpack_limit());
+unpacked unpack(
+    const char* data, std::size_t len, std::size_t& off,
+    unpack_reference_func f = nullptr, void* user_data = nullptr,
+    unpack_limit const& limit = unpack_limit());
+unpacked unpack(
+    const char* data, std::size_t len, bool& referenced,
+    unpack_reference_func f = nullptr, void* user_data = nullptr,
+    unpack_limit const& limit = unpack_limit());
+unpacked unpack(
+    const char* data, std::size_t len,
+    unpack_reference_func f = nullptr, void* user_data = nullptr,
+    unpack_limit const& limit = unpack_limit());
+
+
+void unpack(unpacked& result,
+            const char* data, std::size_t len, std::size_t& off, bool& referenced,
+            unpack_reference_func f = nullptr, void* user_data = nullptr,
+            unpack_limit const& limit = unpack_limit());
+void unpack(unpacked& result,
+            const char* data, std::size_t len, std::size_t& off,
+            unpack_reference_func f = nullptr, void* user_data = nullptr,
+            unpack_limit const& limit = unpack_limit());
+void unpack(unpacked& result,
+            const char* data, std::size_t len, bool& referenced,
+            unpack_reference_func f = nullptr, void* user_data = nullptr,
+            unpack_limit const& limit = unpack_limit());
+
+void unpack(unpacked& result,
+            const char* data, std::size_t len,
+            unpack_reference_func f = nullptr, void* user_data = nullptr,
+            unpack_limit const& limit = unpack_limit());
+
+clmdep_msgpack::object unpack(
+    clmdep_msgpack::zone& z,
+    const char* data, std::size_t len, std::size_t& off, bool& referenced,
+    unpack_reference_func f = nullptr, void* user_data = nullptr,
+    unpack_limit const& limit = unpack_limit());
+clmdep_msgpack::object unpack(
+    clmdep_msgpack::zone& z,
+    const char* data, std::size_t len, std::size_t& off,
+    unpack_reference_func f = nullptr, void* user_data = nullptr,
+    unpack_limit const& limit = unpack_limit());
+clmdep_msgpack::object unpack(
+    clmdep_msgpack::zone& z,
+    const char* data, std::size_t len, bool& referenced,
+    unpack_reference_func f = nullptr, void* user_data = nullptr,
+    unpack_limit const& limit = unpack_limit());
+clmdep_msgpack::object unpack(
+    clmdep_msgpack::zone& z,
+    const char* data, std::size_t len,
+    unpack_reference_func f = nullptr, void* user_data = nullptr,
+    unpack_limit const& limit = unpack_limit());
+
+
+// obsolete
+void unpack(unpacked* result,
+            const char* data, std::size_t len, std::size_t* off = nullptr, bool* referenced = nullptr,
+            unpack_reference_func f = nullptr, void* user_data = nullptr,
+            unpack_limit const& limit = unpack_limit());
+
+
+// for internal use
+typedef enum {
+    UNPACK_SUCCESS              =  2,
+    UNPACK_EXTRA_BYTES          =  1,
+    UNPACK_CONTINUE             =  0,
+    UNPACK_PARSE_ERROR          = -1
+} unpack_return;
+
+inline unpacker::unpacker(unpack_reference_func f,
+                          void* user_data,
+                          std::size_t initial_buffer_size,
+                          unpack_limit const& limit)
+    :m_z(new clmdep_msgpack::zone), m_ctx(f, user_data, limit)
+{
+    if(initial_buffer_size < COUNTER_SIZE) {
+        initial_buffer_size = COUNTER_SIZE;
+    }
+
+    char* buffer = static_cast<char*>(::malloc(initial_buffer_size));
+    if(!buffer) {
+        throw std::bad_alloc();
+    }
+
+    m_buffer = buffer;
+    m_used = COUNTER_SIZE;
+    m_free = initial_buffer_size - m_used;
+    m_off = COUNTER_SIZE;
+    m_parsed = 0;
+    m_initial_buffer_size = initial_buffer_size;
+
+    detail::init_count(m_buffer);
+
+    m_ctx.init();
+    m_ctx.user().set_zone(*m_z);
+    m_ctx.user().set_referenced(false);
+}
+
+#if !defined(MSGPACK_USE_CPP03)
+// Move constructor and move assignment operator
+
+inline unpacker::unpacker(unpacker&& other)
+    :m_buffer(other.m_buffer),
+     m_used(other.m_used),
+     m_free(other.m_free),
+     m_off(other.m_off),
+     m_parsed(other.m_parsed),
+     m_z(std::move(other.m_z)),
+     m_initial_buffer_size(other.m_initial_buffer_size),
+     m_ctx(other.m_ctx) {
+    other.m_buffer = nullptr;
+}
+
+inline unpacker& unpacker::operator=(unpacker&& other) {
+    this->~unpacker();
+    new (this) unpacker(std::move(other));
+    return *this;
+}
+
+#endif // !defined(MSGPACK_USE_CPP03)
+
+
+inline unpacker::~unpacker()
+{
+    // These checks are required for move operations.
+    if (m_buffer) detail::decr_count(m_buffer);
+}
+
+
+inline void unpacker::reserve_buffer(std::size_t size)
+{
+    if(m_free >= size) return;
+    expand_buffer(size);
+}
+
+inline void unpacker::expand_buffer(std::size_t size)
+{
+    if(m_used == m_off && detail::get_count(m_buffer) == 1
+        && !m_ctx.user().referenced()) {
+        // rewind buffer
+        m_free += m_used - COUNTER_SIZE;
+        m_used = COUNTER_SIZE;
+        m_off  = COUNTER_SIZE;
+
+        if(m_free >= size) return;
+    }
+
+    if(m_off == COUNTER_SIZE) {
+        std::size_t next_size = (m_used + m_free) * 2;    // include COUNTER_SIZE
+        while(next_size < size + m_used) {
+            std::size_t tmp_next_size = next_size * 2;
+            if (tmp_next_size <= next_size) {
+                next_size = size + m_used;
+                break;
+            }
+            next_size = tmp_next_size;
+        }
+
+        char* tmp = static_cast<char*>(::realloc(m_buffer, next_size));
+        if(!tmp) {
+            throw std::bad_alloc();
+        }
+
+        m_buffer = tmp;
+        m_free = next_size - m_used;
+
+    } else {
+        std::size_t next_size = m_initial_buffer_size;  // include COUNTER_SIZE
+        std::size_t not_parsed = m_used - m_off;
+        while(next_size < size + not_parsed + COUNTER_SIZE) {
+            std::size_t tmp_next_size = next_size * 2;
+            if (tmp_next_size <= next_size) {
+                next_size = size + not_parsed + COUNTER_SIZE;
+                break;
+            }
+            next_size = tmp_next_size;
+        }
+
+        char* tmp = static_cast<char*>(::malloc(next_size));
+        if(!tmp) {
+            throw std::bad_alloc();
+        }
+
+        detail::init_count(tmp);
+
+        std::memcpy(tmp+COUNTER_SIZE, m_buffer + m_off, not_parsed);
+
+        if(m_ctx.user().referenced()) {
+            try {
+                m_z->push_finalizer(&detail::decr_count, m_buffer);
+            }
+            catch (...) {
+                ::free(tmp);
+                throw;
+            }
+            m_ctx.user().set_referenced(false);
+        } else {
+            detail::decr_count(m_buffer);
+        }
+
+        m_buffer = tmp;
+        m_used  = not_parsed + COUNTER_SIZE;
+        m_free  = next_size - m_used;
+        m_off   = COUNTER_SIZE;
+    }
+}
+
+inline char* unpacker::buffer()
+{
+    return m_buffer + m_used;
+}
+
+inline std::size_t unpacker::buffer_capacity() const
+{
+    return m_free;
+}
+
+inline void unpacker::buffer_consumed(std::size_t size)
+{
+    m_used += size;
+    m_free -= size;
+}
+
+inline bool unpacker::next(unpacked& result, bool& referenced)
+{
+    referenced = false;
+    int ret = execute_imp();
+    if(ret < 0) {
+        throw clmdep_msgpack::parse_error("parse error");
+    }
+
+    if(ret == 0) {
+        result.zone().reset();
+        result.set(object());
+        return false;
+
+    } else {
+        referenced = m_ctx.user().referenced();
+        result.zone().reset( release_zone() );
+        result.set(data());
+        reset();
+        return true;
+    }
+}
+
+inline bool unpacker::next(unpacked& result)
+{
+    bool referenced;
+    return next(result, referenced);
+}
+
+inline bool unpacker::next(unpacked* result)
+{
+    return next(*result);
+}
+
+
+inline bool unpacker::execute()
+{
+    int ret = execute_imp();
+    if(ret < 0) {
+        throw clmdep_msgpack::parse_error("parse error");
+    } else if(ret == 0) {
+        return false;
+    } else {
+        return true;
+    }
+}
+
+inline int unpacker::execute_imp()
+{
+    std::size_t off = m_off;
+    int ret = m_ctx.execute(m_buffer, m_used, m_off);
+    if(m_off > off) {
+        m_parsed += m_off - off;
+    }
+    return ret;
+}
+
+inline clmdep_msgpack::object const& unpacker::data()
+{
+    return m_ctx.data();
+}
+
+inline clmdep_msgpack::zone* unpacker::release_zone()
+{
+    if(!flush_zone()) {
+        return nullptr;
+    }
+
+    clmdep_msgpack::zone* r =  new clmdep_msgpack::zone;
+    clmdep_msgpack::zone* old = m_z.release();
+    m_z.reset(r);
+    m_ctx.user().set_zone(*m_z);
+
+    return old;
+}
+
+inline void unpacker::reset_zone()
+{
+    m_z->clear();
+}
+
+inline bool unpacker::flush_zone()
+{
+    if(m_ctx.user().referenced()) {
+        try {
+            m_z->push_finalizer(&detail::decr_count, m_buffer);
+        } catch (...) {
+            return false;
+        }
+        m_ctx.user().set_referenced(false);
+
+        detail::incr_count(m_buffer);
+    }
+
+    return true;
+}
+
+inline void unpacker::reset()
+{
+    m_ctx.init();
+    // don't reset referenced flag
+    m_parsed = 0;
+}
+
+inline std::size_t unpacker::message_size() const
+{
+    return m_parsed - m_off + m_used;
+}
+
+inline std::size_t unpacker::parsed_size() const
+{
+    return m_parsed;
+}
+
+inline char* unpacker::nonparsed_buffer()
+{
+    return m_buffer + m_off;
+}
+
+inline std::size_t unpacker::nonparsed_size() const
+{
+    return m_used - m_off;
+}
+
+inline void unpacker::skip_nonparsed_buffer(std::size_t size)
+{
+    m_off += size;
+}
+
+inline void unpacker::remove_nonparsed_buffer()
+{
+    m_used = m_off;
+}
+
+namespace detail {
+
+inline unpack_return
+unpack_imp(const char* data, std::size_t len, std::size_t& off,
+           clmdep_msgpack::zone& result_zone, clmdep_msgpack::object& result, bool& referenced,
+           unpack_reference_func f = nullptr, void* user_data = nullptr,
+           unpack_limit const& limit = unpack_limit())
+{
+    std::size_t noff = off;
+
+    if(len <= noff) {
+        // FIXME
+        return UNPACK_CONTINUE;
+    }
+
+    detail::context ctx(f, user_data, limit);
+    ctx.init();
+
+    ctx.user().set_zone(result_zone);
+    ctx.user().set_referenced(false);
+    referenced = false;
+
+    int e = ctx.execute(data, len, noff);
+    if(e < 0) {
+        return UNPACK_PARSE_ERROR;
+    }
+
+    referenced = ctx.user().referenced();
+    off = noff;
+
+    if(e == 0) {
+        return UNPACK_CONTINUE;
+    }
+
+    result = ctx.data();
+
+    if(noff < len) {
+        return UNPACK_EXTRA_BYTES;
+    }
+
+    return UNPACK_SUCCESS;
+}
+
+} // detail
+
+// reference version
+
+inline unpacked unpack(
+    const char* data, std::size_t len, std::size_t& off, bool& referenced,
+    unpack_reference_func f, void* user_data, unpack_limit const& limit)
+{
+    clmdep_msgpack::object obj;
+    clmdep_msgpack::unique_ptr<clmdep_msgpack::zone> z(new clmdep_msgpack::zone);
+    referenced = false;
+    std::size_t noff = off;
+    unpack_return ret = detail::unpack_imp(
+        data, len, noff, *z, obj, referenced, f, user_data, limit);
+
+    switch(ret) {
+    case UNPACK_SUCCESS:
+        off = noff;
+        return unpacked(obj, clmdep_msgpack::move(z));
+    case UNPACK_EXTRA_BYTES:
+        off = noff;
+        return unpacked(obj, clmdep_msgpack::move(z));
+    case UNPACK_CONTINUE:
+        throw clmdep_msgpack::insufficient_bytes("insufficient bytes");
+    case UNPACK_PARSE_ERROR:
+    default:
+        throw clmdep_msgpack::parse_error("parse error");
+    }
+    return unpacked();
+}
+
+inline unpacked unpack(
+    const char* data, std::size_t len, std::size_t& off,
+    unpack_reference_func f, void* user_data, unpack_limit const& limit)
+{
+    bool referenced;
+    return unpack(data, len, off, referenced, f, user_data, limit);
+}
+
+inline unpacked unpack(
+    const char* data, std::size_t len, bool& referenced,
+    unpack_reference_func f, void* user_data, unpack_limit const& limit)
+{
+    std::size_t off = 0;
+    return unpack(data, len, off, referenced, f, user_data, limit);
+}
+
+inline unpacked unpack(
+    const char* data, std::size_t len,
+    unpack_reference_func f, void* user_data, unpack_limit const& limit)
+{
+    bool referenced;
+    std::size_t off = 0;
+    return unpack(data, len, off, referenced, f, user_data, limit);
+}
+
+inline void unpack(unpacked& result,
+                   const char* data, std::size_t len, std::size_t& off, bool& referenced,
+                   unpack_reference_func f, void* user_data, unpack_limit const& limit)
+{
+    clmdep_msgpack::object obj;
+    clmdep_msgpack::unique_ptr<clmdep_msgpack::zone> z(new clmdep_msgpack::zone);
+    referenced = false;
+    std::size_t noff = off;
+    unpack_return ret = detail::unpack_imp(
+        data, len, noff, *z, obj, referenced, f, user_data, limit);
+
+    switch(ret) {
+    case UNPACK_SUCCESS:
+        off = noff;
+        result.set(obj);
+        result.zone() = clmdep_msgpack::move(z);
+        return;
+    case UNPACK_EXTRA_BYTES:
+        off = noff;
+        result.set(obj);
+        result.zone() = clmdep_msgpack::move(z);
+        return;
+    case UNPACK_CONTINUE:
+        throw clmdep_msgpack::insufficient_bytes("insufficient bytes");
+    case UNPACK_PARSE_ERROR:
+    default:
+        throw clmdep_msgpack::parse_error("parse error");
+    }
+}
+
+inline void unpack(unpacked& result,
+                   const char* data, std::size_t len, std::size_t& off,
+                   unpack_reference_func f, void* user_data, unpack_limit const& limit)
+{
+    bool referenced;
+    unpack(result, data, len, off, referenced, f, user_data, limit);
+}
+
+inline void unpack(unpacked& result,
+                   const char* data, std::size_t len, bool& referenced,
+                   unpack_reference_func f, void* user_data, unpack_limit const& limit)
+{
+    std::size_t off = 0;
+    unpack(result, data, len, off, referenced, f, user_data, limit);
+}
+
+inline void unpack(unpacked& result,
+                   const char* data, std::size_t len,
+                   unpack_reference_func f, void* user_data, unpack_limit const& limit)
+{
+    bool referenced;
+    std::size_t off = 0;
+    unpack(result, data, len, off, referenced, f, user_data, limit);
+}
+
+
+inline clmdep_msgpack::object unpack(
+    clmdep_msgpack::zone& z,
+    const char* data, std::size_t len, std::size_t& off, bool& referenced,
+    unpack_reference_func f, void* user_data, unpack_limit const& limit)
+{
+    clmdep_msgpack::object obj;
+    std::size_t noff = off;
+    referenced = false;
+    unpack_return ret = detail::unpack_imp(
+        data, len, noff, z, obj, referenced, f, user_data, limit);
+
+    switch(ret) {
+    case UNPACK_SUCCESS:
+        off = noff;
+        return obj;
+    case UNPACK_EXTRA_BYTES:
+        off = noff;
+        return obj;
+    case UNPACK_CONTINUE:
+        throw clmdep_msgpack::insufficient_bytes("insufficient bytes");
+    case UNPACK_PARSE_ERROR:
+    default:
+        throw clmdep_msgpack::parse_error("parse error");
+    }
+    return obj;
+}
+
+inline clmdep_msgpack::object unpack(
+    clmdep_msgpack::zone& z,
+    const char* data, std::size_t len, std::size_t& off,
+    unpack_reference_func f, void* user_data, unpack_limit const& limit)
+{
+    bool referenced;
+    return unpack(z, data, len, off, referenced, f, user_data, limit);
+}
+
+inline clmdep_msgpack::object unpack(
+    clmdep_msgpack::zone& z,
+    const char* data, std::size_t len, bool& referenced,
+    unpack_reference_func f, void* user_data, unpack_limit const& limit)
+{
+    std::size_t off = 0;
+    return unpack(z, data, len, off, referenced, f, user_data, limit);
+}
+
+inline clmdep_msgpack::object unpack(
+    clmdep_msgpack::zone& z,
+    const char* data, std::size_t len,
+    unpack_reference_func f, void* user_data, unpack_limit const& limit)
+{
+    bool referenced;
+    std::size_t off = 0;
+    return unpack(z, data, len, off, referenced, f, user_data, limit);
+}
+
+// obsolete
+// pointer version
+inline void unpack(unpacked* result,
+                   const char* data, std::size_t len, std::size_t* off, bool* referenced,
+                   unpack_reference_func f, void* user_data, unpack_limit const& limit)
+{
+    if (off)
+        if (referenced) unpack(*result, data, len, *off, *referenced, f, user_data, limit);
+        else unpack(*result, data, len, *off, f, user_data, limit);
+    else
+        if (referenced) unpack(*result, data, len, *referenced, f, user_data, limit);
+        else unpack(*result, data, len, f, user_data, limit);
+}
+
+inline bool unpacker::default_reference_func(clmdep_msgpack::type::object_type /*type*/, std::size_t /*len*/, void*)
+{
+    return true;
+}
+
+/// @cond
+}  // MSGPACK_API_VERSION_NAMESPACE(v1)
+/// @endcond
+
+}  // namespace clmdep_msgpack
+
+
+#endif /* msgpack/unpack.hpp */