comparison: src/buffer.h
src/buffer.h
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| 1 #ifndef BUF_H | |
| 2 #define BUF_H | |
| 3 /*=========================================================================*\ | |
| 4 * LuaSocket 2.0.2 | |
| 5 * Copyright (C) 2004-2007 Diego Nehab | |
| 6 * | |
| 7 * Input/Output interface for Lua programs | |
| 8 * | |
| 9 * Line patterns require buffering. Reading one character at a time involves | |
| 10 * too many system calls and is very slow. This module implements the | |
| 11 * LuaSocket interface for input/output on connected objects, as seen by | |
| 12 * Lua programs. | |
| 13 * | |
| 14 * Input is buffered. Output is *not* buffered because there was no simple | |
| 15 * way of making sure the buffered output data would ever be sent. | |
| 16 * | |
| 17 * The module is built on top of the I/O abstraction defined in io.h and the | |
| 18 * timeout management is done with the timeout.h interface. | |
| 19 * | |
| 20 * | |
| 21 * RCS ID: $Id: buffer.h,v 1.12 2005/10/07 04:40:59 diego Exp $ | |
| 22 \*=========================================================================*/ | |
| 23 #include <lua.h> | |
| 24 | |
| 25 #include "io.h" | |
| 26 #include "timeout.h" | |
| 27 | |
| 28 /* buffer size in bytes */ | |
| 29 #define BUF_SIZE 8192 | |
| 30 | |
| 31 /* buffer control structure */ | |
| 32 typedef struct t_buffer_ { | |
| 33 p_io io; /* IO driver used for this buffer */ | |
| 34 p_timeout tm; /* timeout management for this buffer */ | |
| 35 size_t first, last; /* index of first and last bytes of stored data */ | |
| 36 char data[BUF_SIZE]; /* storage space for buffer data */ | |
| 37 } t_buffer; | |
| 38 typedef t_buffer *p_buffer; | |
| 39 | |
| 40 void buffer_init(p_buffer buf, p_io io, p_timeout tm); | |
| 41 int buffer_meth_send(lua_State *L, p_buffer buf); | |
| 42 int buffer_meth_receive(lua_State *L, p_buffer buf); | |
| 43 int buffer_isempty(p_buffer buf); | |
| 44 | |
| 45 #endif /* BUF_H */ |
