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
|
//
// MessagePack for C++ memory pool
//
// 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_ZONE_HPP__
#define MSGPACK_ZONE_HPP__
#include <iostream>
#include "msgpack/object.hpp"
#include <string.h>
#include <stdlib.h>
#include <stdexcept>
#ifndef MSGPACK_ZONE_CHUNK_SIZE
#define MSGPACK_ZONE_CHUNK_SIZE 8*1024
#endif
namespace msgpack {
static const size_t ZONE_CHUNK_SIZE = MSGPACK_ZONE_CHUNK_SIZE;
class zone {
public:
zone() : m_used(0) { }
~zone() { clear(); }
public:
template <typename T>
void push_finalizer(void (*func)(void* obj, void* user), T* obj, void* user);
public:
object_nil* nnil() { return new (alloc()) object_nil(); }
object_true* ntrue() { return new (alloc()) object_true(); }
object_false* nfalse() { return new (alloc()) object_false(); }
object_u8* nu8( uint8_t v) { return new (alloc()) object_u8(v); }
object_u16* nu16(uint16_t v) { return new (alloc()) object_u16(v); }
object_u32* nu32(uint32_t v) { return new (alloc()) object_u32(v); }
object_u64* nu64(uint64_t v) { return new (alloc()) object_u64(v); }
object_i8* ni8( int8_t v) { return new (alloc()) object_i8(v); }
object_i16* ni16( int16_t v) { return new (alloc()) object_i16(v); }
object_i32* ni32( int32_t v) { return new (alloc()) object_i32(v); }
object_i64* ni64( int64_t v) { return new (alloc()) object_i64(v); }
object_float* nfloat( float v) { return new (alloc()) object_float(v); }
object_double* ndouble( double v) { return new (alloc()) object_double(v); }
object_raw_ref* nraw_ref(void* ptr, uint32_t len)
{ return new (alloc()) object_raw_ref(ptr, len); }
object_const_raw_ref* nraw_ref(const void* ptr, uint32_t len)
{ return new (alloc()) object_const_raw_ref(ptr, len); }
object_raw_ref* nraw_copy(const void* ptr, uint32_t len)
{
void* copy = malloc(len);
if(!copy) { throw std::bad_alloc(); }
object_raw_ref* o;
try {
o = new (alloc()) object_raw_ref(copy, len);
push_finalizer<void>(&zone::finalize_free, NULL, copy);
} catch (...) {
free(copy);
throw;
}
memcpy(copy, ptr, len);
return o;
}
object_array* narray()
{ return new (alloc()) object_array(); }
object_array* narray(size_t reserve_size)
{ return new (alloc()) object_array(reserve_size); }
object_map* nmap()
{ return new (alloc()) object_map(); }
<% GENERATION_SIZE = 16 %>
<% 1.upto(GENERATION_SIZE) {|i| %>
object_array* narray(<% 1.upto(i-1) {|n| %>object o<%=n%>, <% } %>object o<%=i%>)
{ object_array* a = new (alloc()) object_array(<%=i%>);
<% 1.upto(i) {|n| %>a->push_back(o<%=n%>);
<% } %>return a; }
<% } %>
<% 1.upto(GENERATION_SIZE) {|i| %>
object_map* nmap(<% 1.upto(i-1) {|n| %>object k<%=n%>, object v<%=n%>, <% } %>object k<%=i%>, object v<%=i%>)
{ object_map* m = new (alloc()) object_map();
<% 1.upto(i) {|n| %>m->store(k<%=n%>, v<%=n%>);
<% } %>return m; }
<% } %>
public:
void clear();
bool empty() const;
private:
void* alloc();
private:
size_t m_used;
static const size_t MAX_OBJECT_SIZE =
sizeof(object_raw_ref) > sizeof(object_array)
? ( sizeof(object_raw_ref) > sizeof(object_map)
? sizeof(object_raw_ref)
: sizeof(object_map)
)
: ( sizeof(object_array) > sizeof(object_map)
? sizeof(object_array)
: sizeof(object_map)
)
;
struct cell_t {
char data[MAX_OBJECT_SIZE];
};
typedef std::vector<cell_t*> pool_t;
pool_t m_pool;
class finalizer {
public:
finalizer(void (*func)(void*, void*), void* obj, void* user) :
m_obj(obj), m_user(user), m_func(func) {}
void call() { (*m_func)(m_obj, m_user); }
private:
void* m_obj;
void* m_user;
void (*m_func)(void*, void*);
};
typedef std::vector<finalizer> user_finalizer_t;
user_finalizer_t m_user_finalizer;
private:
void resize_pool(size_t n);
public:
static void finalize_free(void* obj, void* user)
{ free(user); }
private:
zone(const zone&);
};
template <typename T>
inline void zone::push_finalizer(void (*func)(void* obj, void* user), T* obj, void* user)
{
m_user_finalizer.push_back( finalizer(
func, reinterpret_cast<void*>(obj),
user) );
}
inline bool zone::empty() const
{
return m_used == 0 && m_user_finalizer.empty();
}
} // namespace msgpack
#endif /* msgpack/zone.hpp */
|
