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Add Call_PushNullVector and Call_PushNullString

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Be able to push NULL_[VECTOR|STRING] to a forward or direct function call.
The callee can check the parameter using the IsNullVector/IsNullString natives.
This commit is contained in:
Peace-Maker
2017-08-25 23:23:24 +02:00
parent 3de269946c
commit 41a9889cdd
5 changed files with 214 additions and 3 deletions
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core/logic/smn_functions.cpp
+84
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@@ -552,6 +552,88 @@ static cell_t sm_CallPushStringEx(IPluginContext *pContext, const cell_t *params
return 1;
}
static cell_t sm_CallPushNullVector(IPluginContext *pContext, const cell_t *params)
{
int err = SP_ERROR_NOT_FOUND;
if (!s_CallStarted)
{
return pContext->ThrowNativeError("Cannot push parameters when there is no call in progress");
}
if (s_pFunction)
{
// Find the NULL_VECTOR pubvar in the target plugin and push the local address.
IPluginRuntime *runtime = s_pFunction->GetParentRuntime();
uint32_t null_vector_idx;
err = runtime->FindPubvarByName("NULL_VECTOR", &null_vector_idx);
if (err)
{
return pContext->ThrowNativeErrorEx(err, "Target plugin has no NULL_VECTOR.");
}
cell_t null_vector;
err = runtime->GetPubvarAddrs(null_vector_idx, &null_vector, nullptr);
if (!err)
err = s_pCallable->PushCell(null_vector);
}
else if (s_pForward)
{
err = s_pForward->PushNullVector();
}
if (err)
{
s_pCallable->Cancel();
ResetCall();
return pContext->ThrowNativeErrorEx(err, NULL);
}
return 1;
}
static cell_t sm_CallPushNullString(IPluginContext *pContext, const cell_t *params)
{
int err = SP_ERROR_NOT_FOUND;
if (!s_CallStarted)
{
return pContext->ThrowNativeError("Cannot push parameters when there is no call in progress");
}
if (s_pFunction)
{
// Find the NULL_STRING pubvar in the target plugin and push the local address.
IPluginRuntime *runtime = s_pFunction->GetParentRuntime();
uint32_t null_string_idx;
err = runtime->FindPubvarByName("NULL_STRING", &null_string_idx);
if (err)
{
return pContext->ThrowNativeErrorEx(err, "Target plugin has no NULL_STRING.");
}
cell_t null_string;
err = runtime->GetPubvarAddrs(null_string_idx, &null_string, nullptr);
if (!err)
err = s_pCallable->PushCell(null_string);
}
else if (s_pForward)
{
err = s_pForward->PushNullString();
}
if (err)
{
s_pCallable->Cancel();
ResetCall();
return pContext->ThrowNativeErrorEx(err, NULL);
}
return 1;
}
static cell_t sm_CallFinish(IPluginContext *pContext, const cell_t *params)
{
int err = SP_ERROR_NOT_RUNNABLE;
@@ -668,6 +750,8 @@ REGISTER_NATIVES(functionNatives)
{"Call_PushArrayEx", sm_CallPushArrayEx},
{"Call_PushString", sm_CallPushString},
{"Call_PushStringEx", sm_CallPushStringEx},
{"Call_PushNullVector", sm_CallPushNullVector},
{"Call_PushNullString", sm_CallPushNullString},
{"Call_Finish", sm_CallFinish},
{"Call_Cancel", sm_CallCancel},
{"RequestFrame", sm_AddFrameAction},