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lua.org patch 2 for lua-5.1.5.
from http://www.lua.org/bugs.html
Upstream-Status: Backport
Signed-off-by: Marko Lindqvist <cazfi74@gmail.com>
diff -Nurd lua-5.1.5/src/lzio.c lua-5.1.5/src/lzio.c
--- lua-5.1.5/src/lzio.c 2007-12-27 15:02:25.000000000 +0200
+++ lua-5.1.5/src/lzio.c 2013-10-25 11:32:45.773536572 +0300
@@ -22,10 +22,14 @@
size_t size;
lua_State *L = z->L;
const char *buff;
+ if (z->eoz) return EOZ;
lua_unlock(L);
buff = z->reader(L, z->data, &size);
lua_lock(L);
- if (buff == NULL || size == 0) return EOZ;
+ if (buff == NULL || size == 0) {
+ z->eoz = 1; /* avoid calling reader function next time */
+ return EOZ;
+ }
z->n = size - 1;
z->p = buff;
return char2int(*(z->p++));
@@ -51,6 +55,7 @@
z->data = data;
z->n = 0;
z->p = NULL;
+ z->eoz = 0;
}
diff -Nurd lua-5.1.5/src/lzio.h lua-5.1.5/src/lzio.h
--- lua-5.1.5/src/lzio.h 2007-12-27 15:02:25.000000000 +0200
+++ lua-5.1.5/src/lzio.h 2013-10-25 11:31:50.301537789 +0300
@@ -59,6 +59,7 @@
lua_Reader reader;
void* data; /* additional data */
lua_State *L; /* Lua state (for reader) */
+ int eoz; /* true if reader has no more data */
};
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