private List <LogInfo> LoadLinks(BackgroundWorker worker)
{
List <LogInfo> logs = new List <LogInfo>(32);
List <int> removeIdxs = new List <int>();
// Doing this will consume memory, but also greatly increase performance.
DB_ScriptCache[] cacheDB = null;
if (scriptCache != null)
{
cacheDB = scriptCache.Table <DB_ScriptCache>().Where(x => true).ToArray();
}
var links = allProjectScripts.Where(x => x.Type == ScriptType.Link);
Debug.Assert(links.Count(x => x.IsDirLink) == 0);
Task[] tasks = links.Select(p =>
{
return(Task.Run(() =>
{
Script link = null;
bool valid = false;
int cached = 2;
try
{
do
{
string linkPath = p.Sections["Main"].IniDict["Link"];
string linkFullPath = Path.Combine(baseDir, linkPath);
if (File.Exists(linkFullPath) == false) // Invalid link
{
break;
}
// Load .link's linked scripts with cache
if (scriptCache != null)
{ // Case of ScriptCache enabled
FileInfo f = new FileInfo(linkFullPath);
DB_ScriptCache pCache = cacheDB.FirstOrDefault(x => x.Hash == linkPath.GetHashCode());
if (pCache != null &&
pCache.Path.Equals(linkPath, StringComparison.Ordinal) &&
DateTime.Equals(pCache.LastWriteTimeUtc, f.LastWriteTimeUtc) &&
pCache.FileSize == f.Length)
{
try
{
using (MemoryStream memStream = new MemoryStream(pCache.Serialized))
{
BinaryFormatter formatter = new BinaryFormatter();
link = (Script)formatter.Deserialize(memStream);
}
link.Project = p.Project;
link.IsDirLink = false;
cached = 3;
}
catch { }
}
}
if (link == null)
{
// TODO : Lazy loading of link, takes too much time at start
string ext = Path.GetExtension(linkFullPath);
ScriptType type = ScriptType.Script;
if (ext.Equals(".link", StringComparison.OrdinalIgnoreCase))
{
type = ScriptType.Link;
}
link = new Script(type, Path.Combine(baseDir, linkFullPath), p.Project, projectRoot, null, false, false, false);
Debug.Assert(p != null);
}
// Check Script Link's validity
// Also, convert nested link to one-depth link
if (link == null)
{
break;
}
if (link.Type == ScriptType.Script)
{
valid = true;
break;
}
link = link.Link;
}while (link.Type != ScriptType.Script);
}
catch (Exception e)
{ // Parser Error
logs.Add(new LogInfo(LogState.Error, Logger.LogExceptionMessage(e)));
}
if (valid)
{
p.LinkLoaded = true;
p.Link = link;
if (worker != null)
{
worker.ReportProgress(cached, Path.GetDirectoryName(p.ShortPath));
}
}
else // Error
{
int idx = allProjectScripts.IndexOf(p);
removeIdxs.Add(idx);
if (worker != null)
{
worker.ReportProgress(cached);
}
}
}));
}).ToArray();
Task.WaitAll(tasks);
// Remove malformed link
var idxs = removeIdxs.OrderByDescending(x => x);
foreach (int idx in idxs)
{
allProjectScripts.RemoveAt(idx);
}
return(logs);
}
/// <returns>Return true if cache is updated</returns>
private bool CacheScript(Script p, DB_ScriptCache[] memDB, List <DB_ScriptCache> updateDB)
{
if (memDB == null)
{
throw new ArgumentNullException("memDB");
}
// Does cache exist?
FileInfo f = new FileInfo(p.DirectFullPath);
string sPath = p.DirectFullPath.Remove(0, p.Project.BaseDir.Length + 1);
bool updated = false;
// int memIdx = 0;
DB_ScriptCache pCache = null;
// Retrieve Cache
pCache = memDB.FirstOrDefault(x => x.Hash == sPath.GetHashCode());
// Update Cache into updateDB
if (pCache == null)
{ // Cache not exists
pCache = new DB_ScriptCache()
{
Hash = sPath.GetHashCode(),
Path = sPath,
LastWriteTimeUtc = f.LastWriteTimeUtc,
FileSize = f.Length,
};
BinaryFormatter formatter = new BinaryFormatter();
using (MemoryStream ms = new MemoryStream())
{
formatter.Serialize(ms, p);
pCache.Serialized = ms.ToArray();
}
listLock.EnterWriteLock();
try
{
updateDB.Add(pCache);
updated = true;
}
finally
{
listLock.ExitWriteLock();
}
}
else if (pCache.Path.Equals(sPath, StringComparison.Ordinal) &&
(DateTime.Equals(pCache.LastWriteTimeUtc, f.LastWriteTime) == false || pCache.FileSize != f.Length))
{ // Cache is outdated
BinaryFormatter formatter = new BinaryFormatter();
using (MemoryStream ms = new MemoryStream())
{
formatter.Serialize(ms, p);
pCache.Serialized = ms.ToArray();
pCache.LastWriteTimeUtc = f.LastWriteTimeUtc;
pCache.FileSize = f.Length;
}
listLock.EnterWriteLock();
try
{
updateDB.Add(pCache);
updated = true;
}
finally
{
listLock.ExitWriteLock();
}
}
if (p.Type == ScriptType.Link && p.LinkLoaded)
{
bool linkUpdated = CacheScript(p.Link, memDB, updateDB);
updated = updated || linkUpdated;
}
return(updated);
}