50 lines
1.7 KiB
C++
50 lines
1.7 KiB
C++
#ifndef BUF_H
|
|
#define BUF_H
|
|
/*=========================================================================*\
|
|
* Input/Output interface for Lua programs
|
|
* LuaSocket toolkit
|
|
*
|
|
* Line patterns require buffering. Reading one character at a time involves
|
|
* too many system calls and is very slow. This module implements the
|
|
* LuaSocket interface for input/output on connected objects, as seen by
|
|
* Lua programs.
|
|
*
|
|
* Input is buffered. Output is *not* buffered because there was no simple
|
|
* way of making sure the buffered output data would ever be sent.
|
|
*
|
|
* The module is built on top of the I/O abstraction defined in io.h and the
|
|
* timeout management is done with the timeout.h interface.
|
|
\*=========================================================================*/
|
|
#include "lua.h"
|
|
|
|
#include "io.h"
|
|
#include "timeout.h"
|
|
|
|
/* buffer size in bytes */
|
|
#define BUF_SIZE 8192
|
|
|
|
namespace NS_SLUA {
|
|
|
|
/* buffer control structure */
|
|
typedef struct t_buffer_ {
|
|
double birthday; /* throttle support info: creation time, */
|
|
size_t sent, received; /* bytes sent, and bytes received */
|
|
p_io io; /* IO driver used for this buffer */
|
|
p_timeout tm; /* timeout management for this buffer */
|
|
size_t first, last; /* index of first and last bytes of stored data */
|
|
char data[BUF_SIZE]; /* storage space for buffer data */
|
|
} t_buffer;
|
|
typedef t_buffer *p_buffer;
|
|
|
|
int buffer_open(lua_State *L);
|
|
void buffer_init(p_buffer buf, p_io io, p_timeout tm);
|
|
int buffer_meth_send(lua_State *L, p_buffer buf);
|
|
int buffer_meth_receive(lua_State *L, p_buffer buf);
|
|
int buffer_meth_getstats(lua_State *L, p_buffer buf);
|
|
int buffer_meth_setstats(lua_State *L, p_buffer buf);
|
|
int buffer_isempty(p_buffer buf);
|
|
|
|
} // end NS_SLUA
|
|
|
|
#endif /* BUF_H */
|