Added lua 5.2 sources

[proxmark3-svn] / liblua / lzio.h

diff --git a/liblua/lzio.h b/liblua/lzio.h
new file mode 100644 (file)
index 0000000..0868230
--- /dev/null
+++ b/liblua/lzio.h
@@ -0,0 +1,65 @@
+/*
+** $Id: lzio.h,v 1.26 2011/07/15 12:48:03 roberto Exp $
+** Buffered streams
+** See Copyright Notice in lua.h
+*/
+
+
+#ifndef lzio_h
+#define lzio_h
+
+#include "lua.h"
+
+#include "lmem.h"
+
+
+#define EOZ    (-1)                    /* end of stream */
+
+typedef struct Zio ZIO;
+
+#define zgetc(z)  (((z)->n--)>0 ?  cast_uchar(*(z)->p++) : luaZ_fill(z))
+
+
+typedef struct Mbuffer {
+  char *buffer;
+  size_t n;
+  size_t buffsize;
+} Mbuffer;
+
+#define luaZ_initbuffer(L, buff) ((buff)->buffer = NULL, (buff)->buffsize = 0)
+
+#define luaZ_buffer(buff)      ((buff)->buffer)
+#define luaZ_sizebuffer(buff)  ((buff)->buffsize)
+#define luaZ_bufflen(buff)     ((buff)->n)
+
+#define luaZ_resetbuffer(buff) ((buff)->n = 0)
+
+
+#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)
+
+
+LUAI_FUNC char *luaZ_openspace (lua_State *L, Mbuffer *buff, size_t n);
+LUAI_FUNC void luaZ_init (lua_State *L, ZIO *z, lua_Reader reader,
+                                        void *data);
+LUAI_FUNC size_t luaZ_read (ZIO* z, void* b, size_t n);        /* read next n bytes */
+
+
+
+/* --------- Private Part ------------------ */
+
+struct Zio {
+  size_t n;                    /* bytes still unread */
+  const char *p;               /* current position in buffer */
+  lua_Reader reader;           /* reader function */
+  void* data;                  /* additional data */
+  lua_State *L;                        /* Lua state (for reader) */
+};
+
+
+LUAI_FUNC int luaZ_fill (ZIO *z);
+
+#endif