unpacker::unpacker() accepts initial buffer size

git-svn-id: file:///Users/frsyuki/project/msgpack-git/svn/x@82 5a5092ae-2292-43ba-b2d5-dcab9c1a2731
This commit is contained in:
frsyuki 2009-02-15 09:09:59 +00:00
parent 3398686816
commit 8be25a7f32
2 changed files with 10 additions and 10 deletions

View File

@ -178,13 +178,14 @@ private:
};
unpacker::unpacker() :
unpacker::unpacker(size_t initial_buffer_size) :
m_buffer(NULL),
m_used(0),
m_free(0),
m_off(0),
m_zone(new zone()),
m_ctx(new context(&*m_zone))
m_ctx(new context(&*m_zone)),
m_initial_buffer_size(initial_buffer_size)
{ }
@ -199,14 +200,14 @@ void unpacker::expand_buffer(size_t len)
if(m_off == 0) {
size_t next_size;
if(m_used != 0) { next_size = (m_used + m_free) * 2; }
else { next_size = UNPACKER_INITIAL_BUFFER_SIZE; }
else { next_size = m_initial_buffer_size; }
while(next_size < len + m_used) { next_size *= 2; }
m_buffer = m_zone->realloc(m_buffer, next_size);
m_free = next_size - m_used;
} else {
size_t next_size = UNPACKER_INITIAL_BUFFER_SIZE;
size_t next_size = m_initial_buffer_size;
while(next_size < len + m_used - m_off) { next_size *= 2; }
char* tmp = m_zone->malloc(next_size);

View File

@ -23,16 +23,13 @@
#include <memory>
#include <stdexcept>
#ifndef MSGPACK_UNPACKER_INITIAL_BUFFER_SIZE
#define MSGPACK_UNPACKER_INITIAL_BUFFER_SIZE 8*1024
#ifndef MSGPACK_UNPACKER_DEFAULT_INITIAL_BUFFER_SIZE
#define MSGPACK_UNPACKER_DEFAULT_INITIAL_BUFFER_SIZE 8*1024
#endif
namespace msgpack {
static const size_t UNPACKER_INITIAL_BUFFER_SIZE = MSGPACK_UNPACKER_INITIAL_BUFFER_SIZE;
struct unpack_error : public std::runtime_error {
unpack_error(const std::string& msg) :
std::runtime_error(msg) { }
@ -41,7 +38,7 @@ struct unpack_error : public std::runtime_error {
class unpacker {
public:
unpacker();
unpacker(size_t initial_buffer_size = MSGPACK_UNPACKER_DEFAULT_INITIAL_BUFFER_SIZE);
~unpacker();
public:
@ -139,6 +136,8 @@ private:
struct context;
context* m_ctx;
const size_t m_initial_buffer_size;
private:
void expand_buffer(size_t len);