51 lines
1,013 B
C
51 lines
1,013 B
C
|
/*
|
||
|
|
** $Id$
|
||
|
|
** 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, char *name); /* open FILEs */
|
||
|
|
ZIO* zsopen (ZIO* z, char* s, char *name); /* string */
|
||
|
|
ZIO* zmopen (ZIO* z, char* b, int size, char *name); /* 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)
|
||
|
|
#define zname(z) ((z)->name)
|
||
|
|
|
||
|
|
|
||
|
|
/* --------- 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 */
|
||
|
|
char *name;
|
||
|
|
unsigned char buffer[ZBSIZE]; /* buffer */
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
#endif
|