bool FStreamingNetworkPlatformFile::InitializeInternal(IPlatformFile* Inner, const TCHAR* HostIP)
{
// look for the commandline that will read files from over the network
if (HostIP == nullptr)
{
UE_LOG(LogStreamingPlatformFile, Error, TEXT("No Host IP specified in the commandline."));
bIsUsable = false;
return false;
}
// optionally get the port from the command line
int32 OverridePort;
if (FParse::Value(FCommandLine::Get(), TEXT("fileserverport="), OverridePort))
{
UE_LOG(LogStreamingPlatformFile, Display, TEXT("Overriding file server port: %d"), OverridePort);
FileServerPort = OverridePort;
}
// Send the filenames and timestamps to the server.
FNetworkFileArchive Payload(NFS_Messages::GetFileList);
FillGetFileList(Payload, true);
// Send the directories over, and wait for a response.
FArrayReader Response;
if(SendPayloadAndReceiveResponse(Payload,Response))
{
// Receive the cooked version information.
int32 ServerPackageVersion = 0;
int32 ServerPackageLicenseeVersion = 0;
ProcessServerInitialResponse(Response, ServerPackageVersion, ServerPackageLicenseeVersion);
// Make sure we can sync a file.
FString TestSyncFile = FPaths::Combine(*(FPaths::EngineDir()), TEXT("Config/BaseEngine.ini"));
IFileHandle* TestFileHandle = OpenRead(*TestSyncFile);
if (TestFileHandle != nullptr)
{
uint8* FileContents = (uint8*)FMemory::Malloc(TestFileHandle->Size());
if (!TestFileHandle->Read(FileContents, TestFileHandle->Size()))
{
UE_LOG(LogStreamingPlatformFile, Fatal, TEXT("Could not read test file %s."), *TestSyncFile);
}
FMemory::Free(FileContents);
delete TestFileHandle;
}
else
{
UE_LOG(LogStreamingPlatformFile, Fatal, TEXT("Could not open test file %s."), *TestSyncFile);
}
FCommandLine::AddToSubprocessCommandline( *FString::Printf( TEXT("-StreamingHostIP=%s"), HostIP ) );
return true;
}
return false;
}
void FNetworkPlatformFile::InitializeAfterSetActive()
{
double NetworkFileStartupTime = 0.0;
{
SCOPE_SECONDS_COUNTER(NetworkFileStartupTime);
// send the filenames and timestamps to the server
FNetworkFileArchive Payload(NFS_Messages::GetFileList);
FillGetFileList(Payload, false);
// send the directories over, and wait for a response
FArrayReader Response;
if (!SendPayloadAndReceiveResponse(Payload, Response))
{
delete Transport;
return;
}
else
{
// receive the cooked version information
int32 ServerPackageVersion = 0;
int32 ServerPackageLicenseeVersion = 0;
ProcessServerInitialResponse(Response, ServerPackageVersion, ServerPackageLicenseeVersion);
// receive a list of the cache files and their timestamps
TMap<FString, FDateTime> ServerCachedFiles;
Response << ServerCachedFiles;
bool bDeleteAllFiles = true;
// Check the stored cooked version
FString CookedVersionFile = FPaths::GeneratedConfigDir() / TEXT("CookedVersion.txt");
if (InnerPlatformFile->FileExists(*CookedVersionFile) == true)
{
IFileHandle* FileHandle = InnerPlatformFile->OpenRead(*CookedVersionFile);
if (FileHandle != NULL)
{
int32 StoredPackageCookedVersion;
int32 StoredPackageCookedLicenseeVersion;
if (FileHandle->Read((uint8*)&StoredPackageCookedVersion, sizeof(int32)) == true)
{
if (FileHandle->Read((uint8*)&StoredPackageCookedLicenseeVersion, sizeof(int32)) == true)
{
if ((ServerPackageVersion == StoredPackageCookedVersion) &&
(ServerPackageLicenseeVersion == StoredPackageCookedLicenseeVersion))
{
bDeleteAllFiles = false;
}
else
{
UE_LOG(LogNetworkPlatformFile, Display,
TEXT("Engine version mismatch: Server %d.%d, Stored %d.%d\n"),
ServerPackageVersion, ServerPackageLicenseeVersion,
StoredPackageCookedVersion, StoredPackageCookedLicenseeVersion);
}
}
}
delete FileHandle;
}
}
else
{
UE_LOG(LogNetworkPlatformFile, Display, TEXT("Cooked version file missing: %s\n"), *CookedVersionFile);
}
if (bDeleteAllFiles == true)
{
// Make sure the config file exists...
InnerPlatformFile->CreateDirectoryTree(*(FPaths::GeneratedConfigDir()));
// Update the cooked version file
IFileHandle* FileHandle = InnerPlatformFile->OpenWrite(*CookedVersionFile);
if (FileHandle != NULL)
{
FileHandle->Write((const uint8*)&ServerPackageVersion, sizeof(int32));
FileHandle->Write((const uint8*)&ServerPackageLicenseeVersion, sizeof(int32));
delete FileHandle;
}
}
// list of directories to skip
TArray<FString> DirectoriesToSkip;
TArray<FString> DirectoriesToNotRecurse;
// use the timestamp grabbing visitor to get all the content times
FLocalTimestampDirectoryVisitor Visitor(*InnerPlatformFile, DirectoriesToSkip, DirectoriesToNotRecurse, false);
TArray<FString> RootContentPaths;
FPackageName::QueryRootContentPaths( RootContentPaths );
for( TArray<FString>::TConstIterator RootPathIt( RootContentPaths ); RootPathIt; ++RootPathIt )
{
const FString& RootPath = *RootPathIt;
const FString& ContentFolder = FPackageName::LongPackageNameToFilename(RootPath);
InnerPlatformFile->IterateDirectory( *ContentFolder, Visitor);
}
// delete out of date files using the server cached files
for (TMap<FString, FDateTime>::TIterator It(ServerCachedFiles); It; ++It)
{
bool bDeleteFile = bDeleteAllFiles;
FString ServerFile = It.Key();
// Convert the filename to the client version
ConvertServerFilenameToClientFilename(ServerFile);
// Set it in the visitor file times list
Visitor.FileTimes.Add(ServerFile, FDateTime::MinValue());
if (bDeleteFile == false)
{
// Check the time stamps...
// get local time
FDateTime LocalTime = InnerPlatformFile->GetTimeStamp(*ServerFile);
// If local time == MinValue than the file does not exist in the cache.
if (LocalTime != FDateTime::MinValue())
{
FDateTime ServerTime = It.Value();
// delete if out of date
// We will use 1.0 second as the tolerance to cover any platform differences in resolution
FTimespan TimeDiff = LocalTime - ServerTime;
double TimeDiffInSeconds = TimeDiff.GetTotalSeconds();
bDeleteFile = (TimeDiffInSeconds > 1.0) || (TimeDiffInSeconds < -1.0);
if (bDeleteFile == true)
{
if (InnerPlatformFile->FileExists(*ServerFile) == true)
{
UE_LOG(LogNetworkPlatformFile, Display, TEXT("Deleting cached file: TimeDiff %5.3f, %s"), TimeDiffInSeconds, *It.Key());
}
else
{
// It's a directory
bDeleteFile = false;
}
}
}
}
if (bDeleteFile == true)
{
InnerPlatformFile->DeleteFile(*ServerFile);
}
}
// Any content files we have locally that were not cached, delete them
for (TMap<FString, FDateTime>::TIterator It(Visitor.FileTimes); It; ++It)
{
if (It.Value() != FDateTime::MinValue())
{
// This was *not* found in the server file list... delete it
UE_LOG(LogNetworkPlatformFile, Display, TEXT("Deleting cached file: %s"), *It.Key());
InnerPlatformFile->DeleteFile(*It.Key());
}
}
// make sure we can sync a file
FString TestSyncFile = FPaths::Combine(*(FPaths::EngineDir()), TEXT("Config/BaseEngine.ini"));
InnerPlatformFile->SetReadOnly(*TestSyncFile, false);
InnerPlatformFile->DeleteFile(*TestSyncFile);
if (InnerPlatformFile->FileExists(*TestSyncFile))
{
UE_LOG(LogNetworkPlatformFile, Fatal, TEXT("Could not delete file sync test file %s."), *TestSyncFile);
}
EnsureFileIsLocal(TestSyncFile);
if (!InnerPlatformFile->FileExists(*TestSyncFile) || InnerPlatformFile->FileSize(*TestSyncFile) < 1)
{
UE_LOG(LogNetworkPlatformFile, Fatal, TEXT("Could not sync test file %s."), *TestSyncFile);
}
}
}
FPlatformMisc::LowLevelOutputDebugStringf(TEXT("Network file startup time: %5.3f seconds\n"), NetworkFileStartupTime);
}
