1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/*
** $Id: lzio.h,v 1.2 2003-12-11 16:53:29 pixel Exp $
** Buffered streams
** See Copyright Notice in lua.h
*/
#ifndef lzio_h
#define lzio_h
#include "lua.h"
#define EOZ (-1) /* end of stream */
typedef struct Zio ZIO;
#define char2int(c) cast(int, cast(unsigned char, (c)))
#define zgetc(z) (((z)->n--)>0 ? char2int(*(z)->p++) : luaZ_fill(z))
#define zname(z) ((z)->name)
void luaZ_init (ZIO *z, lua_Chunkreader reader, void *data, const char *name);
size_t luaZ_read (ZIO* z, void* b, size_t n); /* read next n bytes */
int luaZ_lookahead (ZIO *z);
typedef struct Mbuffer {
char *buffer;
size_t buffsize;
} Mbuffer;
char *luaZ_openspace (lua_State *L, Mbuffer *buff, size_t n);
#define luaZ_initbuffer(L, buff) ((buff)->buffer = NULL, (buff)->buffsize = 0)
#define luaZ_sizebuffer(buff) ((buff)->buffsize)
#define luaZ_buffer(buff) ((buff)->buffer)
#define luaZ_resizebuffer(L, buff, size) \
(luaM_reallocvector(L, (buff)->buffer, (buff)->buffsize, size, char), \
(buff)->buffsize = size)
#define luaZ_freebuffer(L, buff) luaZ_resizebuffer(L, buff, 0)
/* --------- Private Part ------------------ */
struct Zio {
size_t n; /* bytes still unread */
const char *p; /* current position in buffer */
lua_Chunkreader reader;
void* data; /* additional data */
const char *name;
};
int luaZ_fill (ZIO *z);
#endif
|
