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#ifndef BUFIO_H
#define BUFIO_H
#include "def.h"
#include <sys/types.h>
#ifdef WINDOWS
#include <Winsock2.h>
#endif
#include "btconfig.h"
#define BUF_DEF_SIZ 256
#define BUF_INC_SIZ 256
#define BUF_MAX_SIZ (cfg_max_slice_size + BUF_DEF_SIZ + BUF_INC_SIZ)
class BufIo
{
private:
char *b; // buffer
size_t p; // amount of data in the buffer
size_t n; // buffer size
int f_socket_remote_closed;
ssize_t _realloc_buffer();
ssize_t _SEND(SOCKET socket,char *buf,size_t len);
ssize_t _RECV(SOCKET socket,char *buf,size_t len);
public:
BufIo();
~BufIo() { if(b){ delete []b; b = (char*) 0;} }
ssize_t SetSize(size_t len);
void Reset(){ p = 0; f_socket_remote_closed = 0;}
void Close(){
if( b ){ delete []b; b = (char*) 0; }
p = n = 0;
}
size_t Count() const { return p; } //ֽ
size_t LeftSize() const { return (n - p); }
ssize_t PickUp(size_t len); //Ƴǰlenֽ
ssize_t FeedIn(SOCKET sk); //skݵֱʱݿɶ
ssize_t FeedIn(SOCKET sk, size_t limit);
ssize_t FlushOut(SOCKET sk); //дsocket
ssize_t Put(SOCKET sk,char *buf,size_t len); //bufӵ
ssize_t PutFlush(SOCKET sk,char *buf,size_t len);
char *BasePointer() { return b; }
char *CurrentPointer() { return ( b + p); }
};
#endif
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