1*4882a593SmuzhiyunWhen loading a file, Lua may call the reader function again after it returned end of input. 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunFetch from: http://www.lua.org/bugs.html#5.1.5-2 4*4882a593Smuzhiyun 5*4882a593SmuzhiyunSigned-off-by: Francois Perrad <francois.perrad@gadz.org> 6*4882a593Smuzhiyun 7*4882a593SmuzhiyunIndex: b/src/lzio.c 8*4882a593Smuzhiyun=================================================================== 9*4882a593Smuzhiyun--- a/src/lzio.c 10*4882a593Smuzhiyun+++ b/src/lzio.c 11*4882a593Smuzhiyun@@ -22,10 +22,14 @@ 12*4882a593Smuzhiyun size_t size; 13*4882a593Smuzhiyun lua_State *L = z->L; 14*4882a593Smuzhiyun const char *buff; 15*4882a593Smuzhiyun+ if (z->eoz) return EOZ; 16*4882a593Smuzhiyun lua_unlock(L); 17*4882a593Smuzhiyun buff = z->reader(L, z->data, &size); 18*4882a593Smuzhiyun lua_lock(L); 19*4882a593Smuzhiyun- if (buff == NULL || size == 0) return EOZ; 20*4882a593Smuzhiyun+ if (buff == NULL || size == 0) { 21*4882a593Smuzhiyun+ z->eoz = 1; /* avoid calling reader function next time */ 22*4882a593Smuzhiyun+ return EOZ; 23*4882a593Smuzhiyun+ } 24*4882a593Smuzhiyun z->n = size - 1; 25*4882a593Smuzhiyun z->p = buff; 26*4882a593Smuzhiyun return char2int(*(z->p++)); 27*4882a593Smuzhiyun@@ -51,6 +55,7 @@ 28*4882a593Smuzhiyun z->data = data; 29*4882a593Smuzhiyun z->n = 0; 30*4882a593Smuzhiyun z->p = NULL; 31*4882a593Smuzhiyun+ z->eoz = 0; 32*4882a593Smuzhiyun } 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun 35*4882a593SmuzhiyunIndex: b/src/lzio.h 36*4882a593Smuzhiyun=================================================================== 37*4882a593Smuzhiyun--- a/src/lzio.h 38*4882a593Smuzhiyun+++ b/src/lzio.h 39*4882a593Smuzhiyun@@ -59,6 +59,7 @@ 40*4882a593Smuzhiyun lua_Reader reader; 41*4882a593Smuzhiyun void* data; /* additional data */ 42*4882a593Smuzhiyun lua_State *L; /* Lua state (for reader) */ 43*4882a593Smuzhiyun+ int eoz; /* true if reader has no more data */ 44*4882a593Smuzhiyun }; 45*4882a593Smuzhiyun 46*4882a593Smuzhiyun 47