2 ** $Id: lzio.c,v 1.35.1.1 2013/04/12 18:48:47 roberto Exp $
4 ** See Copyright Notice in lua.h
21 int luaZ_fill (ZIO *z) {
26 buff = z->reader(L, z->data, &size);
28 if (buff == NULL || size == 0)
30 z->n = size - 1; /* discount char being returned */
32 return cast_uchar(*(z->p++));
36 void luaZ_init (lua_State *L, ZIO *z, lua_Reader reader, void *data) {
45 /* --------------------------------------------------------------- read --- */
46 size_t luaZ_read (ZIO *z, void *b, size_t n) {
49 if (z->n == 0) { /* no bytes in buffer? */
50 if (luaZ_fill(z) == EOZ) /* try to read more */
51 return n; /* no more input; return number of missing bytes */
53 z->n++; /* luaZ_fill consumed first byte; put it back */
57 m = (n <= z->n) ? n : z->n; /* min. between n and z->n */
67 /* ------------------------------------------------------------------------ */
68 char *luaZ_openspace (lua_State *L, Mbuffer *buff, size_t n) {
69 if (n > buff->buffsize) {
70 if (n < LUA_MINBUFFER) n = LUA_MINBUFFER;
71 luaZ_resizebuffer(L, buff, n);