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LiveCoding: Add support for lazy loading modules. This lets us enable live coding for the entire engine without a large startup penalty. Project modules are still preloaded by default.

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#rb none
#jira

#ROBOMERGE-OWNER: lina.halper
#ROBOMERGE-AUTHOR: ben.marsh
#ROBOMERGE-SOURCE: CL 5437980 in //UE4/Release-4.22/... via CL 5437990
#ROBOMERGE-BOT: ANIM (Main -> Dev-Anim)

[CL 5440764 by ben marsh in Dev-Anim branch]
This commit is contained in:
ben marsh
2019-03-18 21:03:48 -04:00
parent 08a77bee7f
commit 4c5bd2b726
17 changed files with 358 additions and 59 deletions
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60
Engine/Source/Developer/Windows/LiveCoding/Private/LiveCodingModule.cpp
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@@ -258,7 +258,7 @@ void FLiveCodingModule::UpdateModules()
#if IS_MONOLITHIC
wchar_t FullFilePath[WINDOWS_MAX_PATH];
verify(GetModuleFileName(hInstance, FullFilePath, ARRAY_COUNT(FullFilePath)));
EnableModule(FullFilePath);
LppEnableModule(FullFilePath);
#else
TArray<FModuleStatus> ModuleStatuses;
FModuleManager::Get().QueryModules(ModuleStatuses);
@@ -280,24 +280,6 @@ void FLiveCodingModule::UpdateModules()
#endif
}
void FLiveCodingModule::EnableModule(const FString& FullFilePath)
{
if (!EnabledModules.Contains(FullFilePath))
{
LppEnableModule(*FullFilePath);
EnabledModules.Add(FullFilePath);
}
}
void FLiveCodingModule::DisableModule(const FString& FullFilePath)
{
if(EnabledModules.Contains(FullFilePath))
{
LppDisableModule(*FullFilePath);
EnabledModules.Remove(FullFilePath);
}
}
void FLiveCodingModule::OnModulesChanged(FName ModuleName, EModuleChangeReason Reason)
{
#if !IS_MONOLITHIC
@@ -316,42 +298,42 @@ void FLiveCodingModule::OnModulesChanged(FName ModuleName, EModuleChangeReason R
void FLiveCodingModule::ConfigureModule(const FName& Name, const FString& FullFilePath)
{
#if !IS_MONOLITHIC
if (ShouldEnableModule(Name, FullFilePath))
if (!ConfiguredModules.Contains(Name))
{
EnableModule(FullFilePath);
}
else
{
DisableModule(FullFilePath);
if (ShouldPreloadModule(Name, FullFilePath))
{
LppEnableModule(*FullFilePath);
}
else
{
LppEnableLazyLoadedModule(*FullFilePath);
}
ConfiguredModules.Add(Name);
}
#endif
}
bool FLiveCodingModule::ShouldEnableModule(const FName& Name, const FString& FullFilePath) const
bool FLiveCodingModule::ShouldPreloadModule(const FName& Name, const FString& FullFilePath) const
{
if (Settings->ExcludeSpecificModules.Contains(Name))
{
return false;
}
if (Settings->IncludeSpecificModules.Contains(Name))
if (Settings->PreloadNamedModules.Contains(Name))
{
return true;
}
if (FullFilePath.StartsWith(FullProjectDir))
{
if (Settings->bIncludeProjectModules == Settings->bIncludeProjectPluginModules)
if (Settings->bPreloadProjectModules == Settings->bPreloadProjectPluginModules)
{
return Settings->bIncludeProjectModules;
return Settings->bPreloadProjectModules;
}
if(FullFilePath.StartsWith(FullProjectPluginsDir))
{
return Settings->bIncludeProjectPluginModules;
return Settings->bPreloadProjectPluginModules;
}
else
{
return Settings->bIncludeProjectModules;
return Settings->bPreloadProjectModules;
}
}
else
@@ -361,18 +343,18 @@ bool FLiveCodingModule::ShouldEnableModule(const FName& Name, const FString& Ful
return false;
}
if (Settings->bIncludeEngineModules == Settings->bIncludeEnginePluginModules)
if (Settings->bPreloadEngineModules == Settings->bPreloadEnginePluginModules)
{
return Settings->bIncludeEngineModules;
return Settings->bPreloadEngineModules;
}
if(FullFilePath.StartsWith(FullEnginePluginsDir))
{
return Settings->bIncludeEnginePluginModules;
return Settings->bPreloadEnginePluginModules;
}
else
{
return Settings->bIncludeEngineModules;
return Settings->bPreloadEngineModules;
}
}
}