private async Task HandleFileChangedAsync(CancellationToken cancellationToken = default)
{
try
{
// Only notify the project if the contents of the watched file have changed.
// In the case if we fail to read the contents, we will opt to notify the project.
byte[] newHash = GetFileHashOrNull(_fileBeingWatched);
if (newHash == null || _previousContentsHash == null || !newHash.SequenceEqual(_previousContentsHash))
{
TraceUtilities.TraceVerbose("{0} changed on disk. Marking project dirty", _fileBeingWatched);
_previousContentsHash = newHash;
cancellationToken.ThrowIfCancellationRequested();
await _projectServices.Project.Services.ProjectAsynchronousTasks.LoadedProjectAsync(async() =>
{
await _projectServices.ProjectAccessor.EnterWriteLockAsync(async(collection, token) =>
{
// notify all the loaded configured projects
IEnumerable <ConfiguredProject> currentProjects = _projectServices.Project.LoadedConfiguredProjects;
foreach (ConfiguredProject configuredProject in currentProjects)
{
await _projectServices.ProjectAccessor.OpenProjectForWriteAsync(configuredProject, project =>
{
project.MarkDirty();
configuredProject.NotifyProjectChange();
}, cancellationToken).ConfigureAwait(true); // Stay on same thread that took lock
}
}, cancellationToken).ConfigureAwait(true); // Stay on same thread that took lock
});
}
else
{
TraceUtilities.TraceWarning("{0} changed on disk, but has no actual content change.", _fileBeingWatched);
}
}
catch (OperationCanceledException)
{
// Project is already unloaded
}
}
private async Task HandleFileChangedAsync(CancellationToken cancellationToken = default(CancellationToken))
{
try
{
// Only notify the project if the contents of the watched file have changed.
// In the case if we fail to read the contents, we will opt to notify the project.
byte[] newHash = GetFileHashOrNull(_fileBeingWatched);
if (newHash == null || _previousContentsHash == null || !newHash.SequenceEqual(_previousContentsHash))
{
TraceUtilities.TraceVerbose("{0} changed on disk. Marking project dirty", _fileBeingWatched);
_previousContentsHash = newHash;
cancellationToken.ThrowIfCancellationRequested();
await _projectServices.Project.Services.ProjectAsynchronousTasks.LoadedProjectAsync(async() =>
{
using (var access = await _projectServices.ProjectLockService.WriteLockAsync(cancellationToken))
{
// notify all the loaded configured projects
var currentProjects = _projectServices.Project.LoadedConfiguredProjects;
foreach (var configuredProject in currentProjects)
{
// Inside a write lock, we should get back to the same thread.
var project = await access.GetProjectAsync(configuredProject, cancellationToken).ConfigureAwait(true);
project.MarkDirty();
configuredProject.NotifyProjectChange();
}
}
});
}
else
{
TraceUtilities.TraceWarning("{0} changed on disk, but has no actual content change.", _fileBeingWatched);
}
}
catch (OperationCanceledException)
{
// Project is already unloaded
}
}