/// <summary>
/// Creates an ITask instance and returns it.
/// </summary>
internal static ITask CreateTask(LoadedType loadedType, string taskName, string taskLocation, int taskLine, int taskColumn, LogError logError, AppDomainSetup appDomainSetup, bool isOutOfProc, out AppDomain taskAppDomain)
{
bool separateAppDomain = loadedType.HasLoadInSeparateAppDomainAttribute();
s_resolverLoadedType = null;
taskAppDomain = null;
ITask taskInstanceInOtherAppDomain = null;
try
{
if (separateAppDomain)
{
if (!loadedType.Type.IsMarshalByRef)
{
logError
(
taskLocation,
taskLine,
taskColumn,
"TaskNotMarshalByRef",
taskName
);
return null;
}
else
{
// Our task depend on this name to be precisely that, so if you change it make sure
// you also change the checks in the tasks run in separate AppDomains. Better yet, just don't change it.
// Make sure we copy the appdomain configuration and send it to the appdomain we create so that if the creator of the current appdomain
// has done the binding redirection in code, that we will get those settings as well.
AppDomainSetup appDomainInfo = new AppDomainSetup();
// Get the current app domain setup settings
byte[] currentAppdomainBytes = appDomainSetup.GetConfigurationBytes();
// Apply the appdomain settings to the new appdomain before creating it
appDomainInfo.SetConfigurationBytes(currentAppdomainBytes);
AppDomain.CurrentDomain.AssemblyResolve += AssemblyResolver;
s_resolverLoadedType = loadedType;
taskAppDomain = AppDomain.CreateDomain(isOutOfProc ? "taskAppDomain (out-of-proc)" : "taskAppDomain (in-proc)", null, appDomainInfo);
if (loadedType.LoadedAssembly != null)
{
taskAppDomain.Load(loadedType.LoadedAssembly.GetName());
}
// Hook up last minute dumping of any exceptions
taskAppDomain.UnhandledException += new UnhandledExceptionEventHandler(ExceptionHandling.UnhandledExceptionHandler);
}
}
else
{
// perf improvement for the same appdomain case - we already have the type object
// and don't want to go through reflection to recreate it from the name.
return (ITask)Activator.CreateInstance(loadedType.Type);
}
if (loadedType.Assembly.AssemblyFile != null)
{
taskInstanceInOtherAppDomain = (ITask)taskAppDomain.CreateInstanceFromAndUnwrap(loadedType.Assembly.AssemblyFile, loadedType.Type.FullName);
// this will force evaluation of the task class type and try to load the task assembly
Type taskType = taskInstanceInOtherAppDomain.GetType();
// If the types don't match, we have a problem. It means that our AppDomain was able to load
// a task assembly using Load, and loaded a different one. I don't see any other choice than
// to fail here.
if (taskType != loadedType.Type)
{
logError
(
taskLocation,
taskLine,
taskColumn,
"ConflictingTaskAssembly",
loadedType.Assembly.AssemblyFile,
loadedType.Type.Assembly.Location
);
taskInstanceInOtherAppDomain = null;
}
}
else
{
taskInstanceInOtherAppDomain = (ITask)taskAppDomain.CreateInstanceAndUnwrap(loadedType.Type.Assembly.FullName, loadedType.Type.FullName);
}
return taskInstanceInOtherAppDomain;
}
finally
{
// Don't leave appdomains open
if (taskAppDomain != null && taskInstanceInOtherAppDomain == null)
{
AppDomain.Unload(taskAppDomain);
RemoveAssemblyResolver();
}
}
}
/// <summary>
/// Creates an ITask instance and returns it.
/// </summary>
internal static ITask CreateTask(LoadedType loadedType, string taskName, string taskLocation, int taskLine, int taskColumn, LogError logError
#if FEATURE_APPDOMAIN
, AppDomainSetup appDomainSetup
#endif
, bool isOutOfProc
#if FEATURE_APPDOMAIN
, out AppDomain taskAppDomain
#endif
)
{
#if FEATURE_APPDOMAIN
bool separateAppDomain = loadedType.HasLoadInSeparateAppDomainAttribute();
s_resolverLoadedType = null;
taskAppDomain = null;
ITask taskInstanceInOtherAppDomain = null;
#endif
try
{
#if FEATURE_APPDOMAIN
if (separateAppDomain)
{
if (!loadedType.Type.GetTypeInfo().IsMarshalByRef)
{
logError
(
taskLocation,
taskLine,
taskColumn,
"TaskNotMarshalByRef",
taskName
);
return(null);
}
else
{
// Our task depend on this name to be precisely that, so if you change it make sure
// you also change the checks in the tasks run in separate AppDomains. Better yet, just don't change it.
// Make sure we copy the appdomain configuration and send it to the appdomain we create so that if the creator of the current appdomain
// has done the binding redirection in code, that we will get those settings as well.
AppDomainSetup appDomainInfo = new AppDomainSetup();
// Get the current app domain setup settings
byte[] currentAppdomainBytes = appDomainSetup.GetConfigurationBytes();
// Apply the appdomain settings to the new appdomain before creating it
appDomainInfo.SetConfigurationBytes(currentAppdomainBytes);
if (BuildEnvironmentHelper.Instance.RunningTests)
{
// Prevent the new app domain from looking in the VS test runner location. If this
// is not done, we will not be able to find Microsoft.Build.* assemblies.
appDomainInfo.ApplicationBase = BuildEnvironmentHelper.Instance.CurrentMSBuildToolsDirectory;
appDomainInfo.ConfigurationFile = BuildEnvironmentHelper.Instance.CurrentMSBuildConfigurationFile;
}
else
{
// Set the taskAppDomain's BaseDirectory to the one containing the msbuild assemblies
// This host assembly might not be MSBuild.exe and so could be in a different location,
// so, look for a type in Microsoft.Build.dll
appDomainInfo.ApplicationBase = Path.GetDirectoryName(typeof(Microsoft.Build.Execution.ProjectInstance).Assembly.Location);
}
AppDomain.CurrentDomain.AssemblyResolve += AssemblyResolver;
s_resolverLoadedType = loadedType;
taskAppDomain = AppDomain.CreateDomain(isOutOfProc ? "taskAppDomain (out-of-proc)" : "taskAppDomain (in-proc)", null, appDomainInfo);
if (loadedType.LoadedAssembly != null)
{
taskAppDomain.Load(loadedType.LoadedAssembly.GetName());
}
#if FEATURE_APPDOMAIN_UNHANDLED_EXCEPTION
// Hook up last minute dumping of any exceptions
taskAppDomain.UnhandledException += new UnhandledExceptionEventHandler(ExceptionHandling.UnhandledExceptionHandler);
#endif
}
}
else
#endif
{
// perf improvement for the same appdomain case - we already have the type object
// and don't want to go through reflection to recreate it from the name.
return((ITask)Activator.CreateInstance(loadedType.Type));
}
#if FEATURE_APPDOMAIN
if (loadedType.Assembly.AssemblyFile != null)
{
taskInstanceInOtherAppDomain = (ITask)taskAppDomain.CreateInstanceFromAndUnwrap(loadedType.Assembly.AssemblyFile, loadedType.Type.FullName);
// this will force evaluation of the task class type and try to load the task assembly
Type taskType = taskInstanceInOtherAppDomain.GetType();
// If the types don't match, we have a problem. It means that our AppDomain was able to load
// a task assembly using Load, and loaded a different one. I don't see any other choice than
// to fail here.
if (taskType != loadedType.Type)
{
logError
(
taskLocation,
taskLine,
taskColumn,
"ConflictingTaskAssembly",
loadedType.Assembly.AssemblyFile,
loadedType.Type.GetTypeInfo().Assembly.Location
);
taskInstanceInOtherAppDomain = null;
}
}
else
{
taskInstanceInOtherAppDomain = (ITask)taskAppDomain.CreateInstanceAndUnwrap(loadedType.Type.GetTypeInfo().Assembly.FullName, loadedType.Type.FullName);
}
return(taskInstanceInOtherAppDomain);
#endif
}
finally
{
#if FEATURE_APPDOMAIN
// Don't leave appdomains open
if (taskAppDomain != null && taskInstanceInOtherAppDomain == null)
{
AppDomain.Unload(taskAppDomain);
RemoveAssemblyResolver();
}
#endif
}
}
/// <summary>
/// Creates an ITask instance and returns it.
/// </summary>
internal static ITask CreateTask(LoadedType loadedType, string taskName, string taskLocation, int taskLine, int taskColumn, LogError logError, AppDomainSetup appDomainSetup, bool isOutOfProc, out AppDomain taskAppDomain)
{
bool separateAppDomain = loadedType.HasLoadInSeparateAppDomainAttribute();
s_resolverLoadedType = null;
taskAppDomain = null;
ITask taskInstanceInOtherAppDomain = null;
try
{
if (separateAppDomain)
{
if (!loadedType.Type.IsMarshalByRef)
{
logError
(
taskLocation,
taskLine,
taskColumn,
"TaskNotMarshalByRef",
taskName
);
return(null);
}
else
{
// Our task depend on this name to be precisely that, so if you change it make sure
// you also change the checks in the tasks run in separate AppDomains. Better yet, just don't change it.
// Make sure we copy the appdomain configuration and send it to the appdomain we create so that if the creator of the current appdomain
// has done the binding redirection in code, that we will get those settings as well.
AppDomainSetup appDomainInfo = new AppDomainSetup();
// Get the current app domain setup settings
byte[] currentAppdomainBytes = appDomainSetup.GetConfigurationBytes();
// Apply the appdomain settings to the new appdomain before creating it
appDomainInfo.SetConfigurationBytes(currentAppdomainBytes);
AppDomain.CurrentDomain.AssemblyResolve += AssemblyResolver;
s_resolverLoadedType = loadedType;
taskAppDomain = AppDomain.CreateDomain(isOutOfProc ? "taskAppDomain (out-of-proc)" : "taskAppDomain (in-proc)", null, appDomainInfo);
if (loadedType.LoadedAssembly != null)
{
taskAppDomain.Load(loadedType.LoadedAssembly.GetName());
}
// Hook up last minute dumping of any exceptions
taskAppDomain.UnhandledException += new UnhandledExceptionEventHandler(ExceptionHandling.UnhandledExceptionHandler);
}
}
else
{
// perf improvement for the same appdomain case - we already have the type object
// and don't want to go through reflection to recreate it from the name.
return((ITask)Activator.CreateInstance(loadedType.Type));
}
if (loadedType.Assembly.AssemblyFile != null)
{
taskInstanceInOtherAppDomain = (ITask)taskAppDomain.CreateInstanceFromAndUnwrap(loadedType.Assembly.AssemblyFile, loadedType.Type.FullName);
// this will force evaluation of the task class type and try to load the task assembly
Type taskType = taskInstanceInOtherAppDomain.GetType();
// If the types don't match, we have a problem. It means that our AppDomain was able to load
// a task assembly using Load, and loaded a different one. I don't see any other choice than
// to fail here.
if (taskType != loadedType.Type)
{
logError
(
taskLocation,
taskLine,
taskColumn,
"ConflictingTaskAssembly",
loadedType.Assembly.AssemblyFile,
loadedType.Type.Assembly.Location
);
taskInstanceInOtherAppDomain = null;
}
}
else
{
taskInstanceInOtherAppDomain = (ITask)taskAppDomain.CreateInstanceAndUnwrap(loadedType.Type.Assembly.FullName, loadedType.Type.FullName);
}
return(taskInstanceInOtherAppDomain);
}
finally
{
// Don't leave appdomains open
if (taskAppDomain != null && taskInstanceInOtherAppDomain == null)
{
AppDomain.Unload(taskAppDomain);
RemoveAssemblyResolver();
}
}
}