internal void EnsureLoaded()
{
#if FALSE
// If we're fully loaded, just return.
if (_loadState == LoadState.Loaded)
{
return;
}
// If we're loading or not loaded, we need to take this lock.
if (!_typeDb.BeginModuleLoad(this, 10000))
{
Debug.Fail("Timeout loading {0}", _modName);
//throw new InvalidOperationException("Cannot load module at this time");
return;
}
try {
// Ensure we haven't started/finished loading while waiting
if (_loadState != LoadState.NotLoaded)
{
return;
}
// Mark as loading now (before it completes), if we have circular
// references we'll fix them up after loading
// completes.
_loadState = LoadState.Loading;
using (var stream = new FileStream(_dbFile, FileMode.Open, FileAccess.Read, FileShare.Read)) {
Dictionary <string, object> contents = null;
try {
contents = (Dictionary <string, object>)Unpickle.Load(stream);
} catch (ArgumentException) {
_typeDb.OnDatabaseCorrupt();
} catch (InvalidOperationException) {
// Bug 511 - http://pytools.codeplex.com/workitem/511
// Ignore a corrupt database file.
_typeDb.OnDatabaseCorrupt();
}
if (contents != null)
{
LoadModule(contents);
}
}
} catch (FileNotFoundException) {
// if the file got deleted before we've loaded it don't crash...
} catch (IOException) {
// or if someone has locked the file for some reason, also don't crash...
} finally {
// Regardless of how we finish, mark us as loaded so we don't
// try again.
_loadState = LoadState.Loaded;
_typeDb.EndModuleLoad(this);
}
#endif
}
internal void EnsureLoaded()
{
// If we're fully loaded, just return.
if (_loadState == LoadState.Loaded)
{
return;
}
// If we're loading or not loaded, we need to take this lock.
if (!_typeDb.BeginModuleLoad(this, 10000))
{
Debug.Fail(string.Format("Timeout loading {0}", _modName));
//throw new InvalidOperationException("Cannot load module at this time");
return;
}
try {
// Ensure we haven't started/finished loading while waiting
if (_loadState != LoadState.NotLoaded)
{
return;
}
// Mark as loading now (before it completes), if we have circular
// references we'll fix them up after loading
// completes.
_loadState = LoadState.Loading;
// Will be set to true if we should delete this file and then
// trigger a corruption notification.
bool deleteFile = false;
using (var stream = new FileStream(_dbFile, FileMode.Open, FileAccess.Read, FileShare.Read)) {
Dictionary <string, object> contents = null;
try {
contents = (Dictionary <string, object>)Unpickle.Load(stream);
} catch (ArgumentException) {
_typeDb.OnDatabaseCorrupt();
} catch (InvalidOperationException) {
// Bug 511 - http://pytools.codeplex.com/workitem/511
// Ignore a corrupt database file.
_typeDb.OnDatabaseCorrupt();
}
if (contents != null)
{
object obj;
string filename;
if (contents.TryGetValue("filename", out obj))
{
filename = obj as string;
if (!string.IsNullOrEmpty(filename) && !File.Exists(filename))
{
// Issue 2358 - must refresh DB after it moves
// on disk.
deleteFile = true;
}
}
LoadModule(contents);
}
}
if (deleteFile)
{
// Only notify if we actually remove the file
try {
File.Delete(_dbFile);
_typeDb.OnDatabaseCorrupt();
} catch (IOException) {
} catch (UnauthorizedAccessException) {
}
}
} catch (FileNotFoundException) {
// if the file got deleted before we've loaded it don't crash...
} catch (IOException) {
// or if someone has locked the file for some reason, also don't crash...
} finally {
// Regardless of how we finish, mark us as loaded so we don't
// try again.
_loadState = LoadState.Loaded;
_typeDb.EndModuleLoad(this);
}
}
