internal void SwitchProcess(PythonProcess process, bool verbose)
{
var newEvaluator = _evaluators[process.Id];
if (newEvaluator != _activeEvaluator)
{
_activeEvaluator = newEvaluator;
ActiveProcessChanged();
if (verbose)
{
CurrentWindow.WriteLine(Strings.DebugReplSwitchProcessOutput.FormatUI(process.Id));
}
}
}
internal void SwitchProcess(PythonProcess process, bool verbose)
{
var newEvaluator = _evaluators[process.Id];
if (newEvaluator != _activeEvaluator)
{
_activeEvaluator = newEvaluator;
ActiveProcessChanged();
if (verbose)
{
_window.WriteLine(String.Format("Current process changed to {0}", process.Id));
}
}
}
internal void SwitchProcess(PythonProcess process, bool verbose)
{
var newEvaluator = _evaluators[process.Id];
if (newEvaluator != _activeEvaluator)
{
_activeEvaluator = newEvaluator;
ActiveProcessChanged();
if (verbose)
{
CurrentWindow.WriteLine(Strings.DebugReplSwitchProcessOutput.FormatUI(process.Id));
}
}
else if (CustomDebugAdapterProtocolExtension.CanUseExperimental())
{
NotSupported();
}
}
internal void DetachProcess(PythonProcess process)
{
int id = process.Id;
PythonDebugProcessReplEvaluator evaluator;
if (_evaluators.TryGetValue(id, out evaluator))
{
evaluator.AvailableScopesChanged -= new EventHandler <EventArgs>(evaluator_AvailableScopesChanged);
evaluator.MultipleScopeSupportChanged -= new EventHandler <EventArgs>(evaluator_MultipleScopeSupportChanged);
process.DisconnectRepl();
_evaluators.Remove(id);
if (_activeEvaluator == evaluator)
{
_activeEvaluator = null;
}
ActiveProcessChanged();
}
}
internal void AttachProcess(PythonProcess process, IThreadIdMapper threadIdMapper)
{
if (_evaluators.ContainsKey(process.Id))
{
// Process is already attached, so just switch to it if needed
SwitchProcess(process, false);
return;
}
process.ProcessExited += new EventHandler <ProcessExitedEventArgs>(OnProcessExited);
var evaluator = new PythonDebugProcessReplEvaluator(_serviceProvider, process, _pyService, threadIdMapper);
evaluator.Window = _window;
evaluator.AvailableScopesChanged += new EventHandler <EventArgs>(evaluator_AvailableScopesChanged);
evaluator.MultipleScopeSupportChanged += new EventHandler <EventArgs>(evaluator_MultipleScopeSupportChanged);
_evaluators.Add(process.Id, evaluator);
_activeEvaluator = evaluator;
}
internal async Task DetachProcessAsync(PythonProcess process)
{
_serviceProvider.GetUIThread().MustBeCalledFromUIThread();
int id = process.Id;
PythonDebugProcessReplEvaluator evaluator;
if (_evaluators.TryGetValue(id, out evaluator))
{
evaluator.AvailableScopesChanged -= new EventHandler <EventArgs>(evaluator_AvailableScopesChanged);
evaluator.MultipleScopeSupportChanged -= new EventHandler <EventArgs>(evaluator_MultipleScopeSupportChanged);
_evaluators.Remove(id);
if (_activeEvaluator == evaluator)
{
_activeEvaluator = null;
}
ActiveProcessChanged();
}
}
internal async Task AttachProcessAsync(PythonProcess process, IThreadIdMapper threadIdMapper)
{
_serviceProvider.GetUIThread().MustBeCalledFromUIThread();
if (_evaluators.ContainsKey(process.Id))
{
// Process is already attached, so just switch to it if needed
SwitchProcess(process, false);
return;
}
process.ProcessExited += new EventHandler <ProcessExitedEventArgs>(OnProcessExited);
var evaluator = new PythonDebugProcessReplEvaluator(_serviceProvider, process, threadIdMapper);
evaluator.CurrentWindow = CurrentWindow;
await evaluator.InitializeAsync();
evaluator.AvailableScopesChanged += new EventHandler <EventArgs>(evaluator_AvailableScopesChanged);
evaluator.MultipleScopeSupportChanged += new EventHandler <EventArgs>(evaluator_MultipleScopeSupportChanged);
_evaluators.Add(process.Id, evaluator);
_activeEvaluator = evaluator;
}
internal async Task AttachProcessAsync(PythonProcess process, IThreadIdMapper threadIdMapper)
{
// The fact that this is only called from UI thread is no guarantee
// that there won't be more than one "instance" of this method in
// progress at any time (though only one is executing while others are paused).
// It's possible because this is an async method with await(s), and
// UI thread execution will temporarily continue somewhere else when
// await is used, and that somewhere else can be code that calls
// into this method with the same process id!
// The more relevant trigger for this cooperative multitasking is
// the await on evaluator.InitializeAsync, and when that happens
// the evaluator is not in the _evaluators dictionary yet.
// If a second caller comes in (on the same UI thread) during that
// await, it gets past the first check because it's not in _evaluators,
// and then checks the _attachingTasks dictionary and know to wait
// for that instead of creating a new evaluator.
// Note that adding the uninitialized evaluator to the _evaluators
// dictionary would be a potentially bug prone solution, as other
// code may try to use it before it's fully initialized.
_serviceProvider.GetUIThread().MustBeCalledFromUIThread();
if (_evaluators.ContainsKey(process.Id))
{
// Process is already attached, so just switch to it if needed
SwitchProcess(process, false);
return;
}
// Keep track of evaluators that are in progress of attaching, and if
// we are getting called to attach for one that is already in progress,
// just wait for it to finish before returning.
// Important: dictionary must be checked (and updated) before any
// await call to avoid race condition.
Task attachingTask;
TaskCompletionSource <object> attachingTcs = null;
if (_attachingTasks.TryGetValue(process.Id, out attachingTask))
{
await attachingTask;
return;
}
else
{
attachingTcs = new TaskCompletionSource <object>();
_attachingTasks.Add(process.Id, attachingTcs.Task);
}
process.ProcessExited += new EventHandler <ProcessExitedEventArgs>(OnProcessExited);
var evaluator = new PythonDebugProcessReplEvaluator(_serviceProvider, process, threadIdMapper)
{
CurrentWindow = CurrentWindow
};
evaluator.AvailableScopesChanged += new EventHandler <EventArgs>(evaluator_AvailableScopesChanged);
evaluator.MultipleScopeSupportChanged += new EventHandler <EventArgs>(evaluator_MultipleScopeSupportChanged);
await evaluator.InitializeAsync();
_evaluators.Add(process.Id, evaluator);
_activeEvaluator = evaluator;
// Only refresh available scopes after the active evaluator has
// been changed, because that's where the UI will look.
await evaluator.RefreshAvailableScopes();
attachingTcs.SetResult(null);
_attachingTasks.Remove(process.Id);
}
internal void DetachProcess(PythonProcess process) {
int id = process.Id;
PythonDebugProcessReplEvaluator evaluator;
if (_evaluators.TryGetValue(id, out evaluator)) {
evaluator.AvailableScopesChanged -= new EventHandler<EventArgs>(evaluator_AvailableScopesChanged);
evaluator.MultipleScopeSupportChanged -= new EventHandler<EventArgs>(evaluator_MultipleScopeSupportChanged);
process.DisconnectRepl();
_evaluators.Remove(id);
if (_activeEvaluator == evaluator) {
_activeEvaluator = null;
}
ActiveProcessChanged();
}
}
internal void AttachProcess(PythonProcess process, IThreadIdMapper threadIdMapper) {
if (_evaluators.ContainsKey(process.Id)) {
// Process is already attached, so just switch to it if needed
SwitchProcess(process, false);
return;
}
process.ProcessExited += new EventHandler<ProcessExitedEventArgs>(OnProcessExited);
var evaluator = new PythonDebugProcessReplEvaluator(_serviceProvider, process, _pyService, threadIdMapper);
evaluator.Window = _window;
evaluator.InitializeAsync().WaitAndUnwrapExceptions();
evaluator.AvailableScopesChanged += new EventHandler<EventArgs>(evaluator_AvailableScopesChanged);
evaluator.MultipleScopeSupportChanged += new EventHandler<EventArgs>(evaluator_MultipleScopeSupportChanged);
_evaluators.Add(process.Id, evaluator);
_activeEvaluator = evaluator;
}
internal void SwitchProcess(PythonProcess process, bool verbose) {
var newEvaluator = _evaluators[process.Id];
if (newEvaluator != _activeEvaluator) {
_activeEvaluator = newEvaluator;
ActiveProcessChanged();
if (verbose) {
_window.WriteLine(String.Format("Current process changed to {0}", process.Id));
}
}
}