public HttpResponse Handle(HttpRequest req)
{
Interlocked.Increment(ref _activeConnections);
try
{
// Must call the handle method first because this is a call across the AppDomain boundary
return(RunnerProxy.Handle(req));
}
finally
{
// THEN add the callback, which would otherwise not be serializable
req.CleanUpCallback += () =>
{
Interlocked.Decrement(ref _activeConnections);
};
}
}
private static int _appDomainCount = 0; // only used to give each AppDomain a unique name
public AppDomainInfo(LoggerBase log, PropellerSettings settings, PropellerModuleSettings moduleSettings, ISettingsSaver saver)
{
ModuleSettings = moduleSettings;
Saver = saver;
_log = log;
_activeConnections = 0;
// Determine the temporary folder that DLLs will be copied to
var tempFolder = settings.TempFolder ?? Path.GetTempPath();
Directory.CreateDirectory(tempFolder);
// Find a new folder to put the DLL/EXE files into
int j = 1;
do
{
TempPathUsed = Path.Combine(tempFolder, "propeller-tmp-" + (j++));
}while (Directory.Exists(TempPathUsed));
Directory.CreateDirectory(TempPathUsed);
// Copy all the DLLs/EXEs to the temporary folder
foreach (var sourceFile in
new[] { typeof(PropellerEngine), typeof(IPropellerModule), typeof(HttpServer), typeof(Ut) }.Select(type => type.Assembly.Location).Concat(
new[] { "*.exe", "*.dll", "*.pdb" }.SelectMany(ext => Directory.EnumerateFiles(Path.GetDirectoryName(moduleSettings.ModuleDll), ext))))
{
var destFile = Path.Combine(TempPathUsed, Path.GetFileName(sourceFile));
if (File.Exists(destFile))
{
_log.Warn(2, "Skipping file {0} because destination file {1} already exists.".Fmt(sourceFile, destFile));
}
else
{
_log.Info(2, "Copying file {0} to {1}".Fmt(sourceFile, destFile));
File.Copy(sourceFile, destFile);
}
}
// Create an AppDomain
var setup = new AppDomainSetup {
ApplicationBase = TempPathUsed, PrivateBinPath = TempPathUsed
};
AppDomain = AppDomain.CreateDomain("Propeller AppDomain #{0}, module {1}".Fmt(_appDomainCount++, moduleSettings.ModuleName), null, setup);
RunnerProxy = (AppDomainRunner)AppDomain.CreateInstanceAndUnwrap("Propeller", "RT.Propeller.AppDomainRunner");
RunnerProxy.Init(
Path.Combine(TempPathUsed, Path.GetFileName(moduleSettings.ModuleDll)),
moduleSettings.ModuleType,
moduleSettings.ModuleName,
moduleSettings.Settings,
_log,
saver);
IEnumerable <string> filters = moduleSettings.MonitorFilters ?? Enumerable.Empty <string>();
if (RunnerProxy.FileFiltersToBeMonitoredForChanges != null)
{
filters = filters.Concat(RunnerProxy.FileFiltersToBeMonitoredForChanges);
}
foreach (var filter in filters.Concat(moduleSettings.ModuleDll))
{
addFileSystemWatcher(Path.GetDirectoryName(filter), Path.GetFileName(filter));
}
UrlMappings = moduleSettings.Hooks.Select(hook => new UrlMapping(hook, Handle, true)).ToArray();
_log.Info("Module {0} URLs: {1}".Fmt(moduleSettings.ModuleName, moduleSettings.Hooks.JoinString("; ")));
}
