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(svn r15958) -Fix [FS#2787]: Abort production callback after 0x10000 iterations and show a messagebox blaming the newgrf. (mizipzor)

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frosch 2009-04-05 12:17:36 +00:00
parent 5551e3d2c6
commit 3393da4810
2 changed files with 15 additions and 0 deletions
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1
src/lang/english.txt
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@ -3171,6 +3171,7 @@ STR_BROKEN_VEHICLE_LENGTH :{WHITE}Train '{
STR_NEWGRF_BUGGY :{WHITE}NewGRF '{0:RAW_STRING}' provides incorrect information.
STR_NEWGRF_BUGGY_ARTICULATED_CARGO :{WHITE}Cargo/refit information for '{1:ENGINE}' differs from purchase list after construction. This might cause autorenew/-replace to fail refitting correctly.
STR_NEWGRF_BUGGY_ENDLESS_PRODUCTION_CALLBACK :{WHITE}'{1:STRING}' caused an endless loop in the production callback.
STR_LOADGAME_REMOVED_TRAMS :{WHITE}Game was saved in version without tram support. All trams have been removed.

14
src/newgrf_industries.cpp
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@ -17,6 +17,8 @@
#include "town.h"
#include "company_base.h"
#include "command_func.h"
#include "gui.h"
#include "strings_func.h"
#include "table/strings.h"
@ -570,6 +572,18 @@ void IndustryProductionCallback(Industry *ind, int reason)
object.callback_param2 = reason;
for (uint loop = 0;; loop++) {
/* limit the number of calls to break infinite loops.
* 'loop' is provided as 16 bits to the newgrf, so abort when those are exceeded. */
if (loop >= 0x10000) {
/* display error message */
SetDParamStr(0, spec->grf_prop.grffile->filename);
SetDParam(1, spec->name);
ShowErrorMessage(STR_NEWGRF_BUGGY_ENDLESS_PRODUCTION_CALLBACK, STR_NEWGRF_BUGGY, 0, 0);
/* abort the function early, this error isn't critical and will allow the game to continue to run */
break;
}
SB(object.callback_param2, 8, 16, loop);
const SpriteGroup *group = Resolve(spec->grf_prop.spritegroup, &object);
if (group == NULL || group->type != SGT_INDUSTRY_PRODUCTION) break;