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#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 */
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