avoid calling write function with empty block

This commit is contained in:
Roberto Ierusalimschy 2015-10-08 12:53:49 -03:00
parent df45f7118b
commit 0c78de0d6d
1 changed files with 2 additions and 2 deletions

View File

@ -1,5 +1,5 @@
/*
** $Id: ldump.c,v 2.35 2015/01/16 16:54:37 roberto Exp roberto $
** $Id: ldump.c,v 2.36 2015/03/30 15:43:51 roberto Exp roberto $
** save precompiled Lua chunks
** See Copyright Notice in lua.h
*/
@ -38,7 +38,7 @@ typedef struct {
static void DumpBlock (const void *b, size_t size, DumpState *D) {
if (D->status == 0) {
if (D->status == 0 && size > 0) {
lua_unlock(D->L);
D->status = (*D->writer)(D->L, b, size, D->data);
lua_lock(D->L);