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files are closed when collected (again)

This commit is contained in:
Roberto Ierusalimschy 2000-05-30 15:55:16 -03:00
parent 50a82ec1b9
commit f63d7753b8
1 changed files with 14 additions and 2 deletions
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16
liolib.c
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@ -1,5 +1,5 @@
/* /*
** $Id: liolib.c,v 1.64 2000/05/24 13:54:49 roberto Exp roberto $ ** $Id: liolib.c,v 1.65 2000/05/26 19:17:57 roberto Exp roberto $
** Standard I/O (and system) library ** Standard I/O (and system) library
** See Copyright Notice in lua.h ** See Copyright Notice in lua.h
*/ */
@ -160,7 +160,7 @@ static void setreturn (lua_State *L, IOCtrl *ctrl, FILE *f, int inout) {
static int closefile (lua_State *L, IOCtrl *ctrl, FILE *f) { static int closefile (lua_State *L, IOCtrl *ctrl, FILE *f) {
if (f == stdin || f == stdout) if (f == stdin || f == stdout || f == stderr)
return 1; return 1;
else { else {
if (f == ctrl->file[INFILE]) if (f == ctrl->file[INFILE])
@ -180,6 +180,14 @@ static void io_close (lua_State *L) {
} }
static void file_collect (lua_State *L) {
IOCtrl *ctrl = (IOCtrl *)lua_getuserdata(L, lua_getparam(L, 1));
FILE *f = getnonullfile(L, ctrl, 2);
if (f != stdin && f != stdout && f != stderr)
CLOSEFILE(L, f);
}
static void io_open (lua_State *L) { static void io_open (lua_State *L) {
IOCtrl *ctrl = (IOCtrl *)lua_getuserdata(L, lua_getparam(L, 1)); IOCtrl *ctrl = (IOCtrl *)lua_getuserdata(L, lua_getparam(L, 1));
FILE *f = fopen(luaL_check_string(L, 2), luaL_check_string(L, 3)); FILE *f = fopen(luaL_check_string(L, 2), luaL_check_string(L, 3));
@ -649,6 +657,10 @@ static void openwithcontrol (lua_State *L) {
lua_pushusertag(L, ctrl, ctrltag); lua_pushusertag(L, ctrl, ctrltag);
lua_pushcclosure(L, ctrl_collect, 1); lua_pushcclosure(L, ctrl_collect, 1);
lua_settagmethod(L, ctrltag, "gc"); lua_settagmethod(L, ctrltag, "gc");
/* close files when collected */
lua_pushusertag(L, ctrl, ctrltag);
lua_pushcclosure(L, file_collect, 1);
lua_settagmethod(L, ctrl->iotag, "gc");
} }
void lua_iolibopen (lua_State *L) { void lua_iolibopen (lua_State *L) {