mirror of https://github.com/lua/lua.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
49 lines
991 B
49 lines
991 B
/*
|
|
** $Id: lzio.h,v 1.1 1997/09/16 19:25:59 roberto Exp roberto $
|
|
** Buffered streams
|
|
** See Copyright Notice in lua.h
|
|
*/
|
|
|
|
|
|
#ifndef lzio_h
|
|
#define lzio_h
|
|
|
|
#include <stdio.h>
|
|
|
|
|
|
|
|
/* For Lua only */
|
|
#define zFopen luaZ_Fopen
|
|
#define zsopen luaZ_sopen
|
|
#define zmopen luaZ_mopen
|
|
#define zread luaZ_read
|
|
|
|
#define EOZ (-1) /* end of stream */
|
|
|
|
typedef struct zio ZIO;
|
|
|
|
ZIO* zFopen (ZIO* z, FILE* f); /* open FILEs */
|
|
ZIO* zsopen (ZIO* z, char* s); /* string */
|
|
ZIO* zmopen (ZIO* z, char* b, int size); /* memory */
|
|
|
|
int zread (ZIO* z, void* b, int n); /* read next n bytes */
|
|
|
|
#define zgetc(z) (--(z)->n>=0 ? ((int)*(z)->p++): (z)->filbuf(z))
|
|
#define zungetc(z) (++(z)->n,--(z)->p)
|
|
|
|
|
|
|
|
/* --------- Private Part ------------------ */
|
|
|
|
#define ZBSIZE 256 /* buffer size */
|
|
|
|
struct zio {
|
|
int n; /* bytes still unread */
|
|
unsigned char* p; /* current position in buffer */
|
|
int (*filbuf)(ZIO* z);
|
|
void* u; /* additional data */
|
|
unsigned char buffer[ZBSIZE]; /* buffer */
|
|
};
|
|
|
|
|
|
#endif
|
|
|