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(svn r15440) -Fix: Backup AIObject::GetAllowDoCommand and restore the old value so AIs can't work around it.

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This commit is contained in:
yexo 2009-02-10 19:22:09 +00:00
parent 3072a5d7c2
commit 1eeb0f6748
2 changed files with 8 additions and 10 deletions
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11
src/ai/ai_instance.cpp
View File

@ -272,13 +272,13 @@ void AIInstance::GameLoop()
if (!this->is_started) {
try {
AIObject::SetAllowDoCommand(false);
/* Run the constructor if it exists. Don't allow any DoCommands in it. */
if (this->engine->MethodExists(*this->instance, "constructor")) {
AIObject::SetAllowDoCommand(false);
this->engine->CallMethod(*this->instance, "constructor");
AIObject::SetAllowDoCommand(true);
}
this->CallLoad();
AIObject::SetAllowDoCommand(true);
/* Start the AI by calling Start() */
if (!this->engine->CallMethod(*this->instance, "Start", _settings_game.ai.ai_max_opcode_till_suspend)) this->Died();
} catch (AI_VMSuspend e) {
@ -524,9 +524,10 @@ void AIInstance::Save()
} else if (this->engine->MethodExists(*this->instance, "Save")) {
HSQOBJECT savedata;
/* We don't want to be interrupted during the save function. */
bool backup_allow = AIObject::GetAllowDoCommand();
AIObject::SetAllowDoCommand(false);
this->engine->CallMethod(*this->instance, "Save", &savedata);
AIObject::SetAllowDoCommand(true);
AIObject::SetAllowDoCommand(backup_allow);
if (!sq_istable(savedata)) {
AILog::Error("Save function should return a table.");
@ -653,8 +654,6 @@ void AIInstance::CallLoad()
return;
}
AIObject::SetAllowDoCommand(false);
/* Go to the instance-root */
sq_pushobject(vm, *this->instance);
/* Find the function-name inside the script */
@ -673,6 +672,4 @@ void AIInstance::CallLoad()
/* Pop 1) The version, 2) the savegame data, 3) the object instance, 4) the function pointer. */
sq_pop(vm, 4);
AIObject::SetAllowDoCommand(true);
}

7
src/ai/api/ai_abstractlist.cpp
View File

@ -759,6 +759,7 @@ SQInteger AIAbstractList::Valuate(HSQUIRRELVM vm) {
/* Don't allow docommand from a Valuator, as we can't resume in
* mid-code */
bool backup_allow = AIObject::GetAllowDoCommand();
AIObject::SetAllowDoCommand(false);
sq_addref(vm, &obj_func);
@ -788,7 +789,7 @@ SQInteger AIAbstractList::Valuate(HSQUIRRELVM vm) {
/* Call the function */
if (SQ_FAILED(sq_call(vm, nparam + 2, SQTrue, SQTrue))) {
AIObject::SetAllowDoCommand(true);
AIObject::SetAllowDoCommand(backup_allow);
return SQ_ERROR;
}
@ -810,7 +811,7 @@ SQInteger AIAbstractList::Valuate(HSQUIRRELVM vm) {
sq_release(vm, &obj_func);
for (int i = 0; i < nparam; i++) sq_release(vm, &obj_params[i]);
AIObject::SetAllowDoCommand(true);
AIObject::SetAllowDoCommand(backup_allow);
return sq_throwerror(vm, _SC("return value of valuator is not valid (not integer/bool)"));
}
}
@ -826,6 +827,6 @@ SQInteger AIAbstractList::Valuate(HSQUIRRELVM vm) {
sq_release(vm, &obj_func);
for (int i = 0; i < nparam; i++) sq_release(vm, &obj_params[i]);
AIObject::SetAllowDoCommand(true);
AIObject::SetAllowDoCommand(backup_allow);
return 0;
}