public Task <ActionResult> GetDump(int?pid, [FromQuery] DumpType type = DumpType.WithHeap)
{
return(this.InvokeService(async() =>
{
int pidValue = await _diagnosticServices.ResolveProcessAsync(pid, HttpContext.RequestAborted);
Stream result = await _diagnosticServices.GetDump(pidValue, type, HttpContext.RequestAborted);
string dumpFileName = RuntimeInformation.IsOSPlatform(OSPlatform.Windows) ?
FormattableString.Invariant($"dump_{GetFileNameTimeStampUtcNow()}.dmp") :
FormattableString.Invariant($"core_{GetFileNameTimeStampUtcNow()}");
//Compression is done automatically by the response
//Chunking is done because the result has no content-length
return File(result, "application/octet-stream", dumpFileName);
}));
}
protected override Task ExecuteAsync(CancellationToken stoppingToken)
{
return(Task.Run(async() =>
{
while (!stoppingToken.IsCancellationRequested)
{
stoppingToken.ThrowIfCancellationRequested();
try
{
//TODO In multi-process scenarios, how do we decide which process to choose?
//One possibility is to enable metrics after a request to begin polling for metrics
int pid = await _services.ResolveProcessAsync(pid: null, stoppingToken);
var client = new DiagnosticsClient(pid);
await _pipeProcessor.Process(client, pid, Timeout.InfiniteTimeSpan, stoppingToken);
}
catch (Exception e) when(!(e is OperationCanceledException))
{
//Most likely we failed to resolve the pid. Attempt to do this again.
await Task.Delay(5000);
}
}
}, stoppingToken));
}
