private async Task <ActionResult <T> > InvokeForProcess <T>(Func <IProcessInfo, Task <ActionResult <T> > > func, ProcessFilter?filter, string artifactType = null)
{
IDisposable artifactTypeRegistration = null;
if (!string.IsNullOrEmpty(artifactType))
{
KeyValueLogScope artifactTypeScope = new KeyValueLogScope();
artifactTypeScope.AddArtifactType(artifactType);
artifactTypeRegistration = _logger.BeginScope(artifactTypeScope);
}
try
{
return(await this.InvokeService(async() =>
{
IProcessInfo processInfo = await _diagnosticServices.GetProcessAsync(filter, HttpContext.RequestAborted);
KeyValueLogScope processInfoScope = new KeyValueLogScope();
processInfoScope.AddEndpointInfo(processInfo.EndpointInfo);
using var _ = _logger.BeginScope(processInfoScope);
_logger.LogDebug("Resolved target process.");
return await func(processInfo);
}, _logger));
}
finally
{
artifactTypeRegistration?.Dispose();
}
}
public Task <ActionResult> GetDump(
ProcessFilter?processFilter,
[FromQuery] DumpType type = DumpType.WithHeap,
[FromQuery] string egressProvider = null)
{
return(InvokeForProcess(async processInfo =>
{
string dumpFileName = RuntimeInformation.IsOSPlatform(OSPlatform.Windows) ?
FormattableString.Invariant($"dump_{GetFileNameTimeStampUtcNow()}.dmp") :
FormattableString.Invariant($"core_{GetFileNameTimeStampUtcNow()}");
if (string.IsNullOrEmpty(egressProvider))
{
Stream dumpStream = await _diagnosticServices.GetDump(processInfo, type, HttpContext.RequestAborted);
//Compression is done automatically by the response
//Chunking is done because the result has no content-length
return File(dumpStream, ContentTypes.ApplicationOctectStream, dumpFileName);
}
else
{
KeyValueLogScope scope = new KeyValueLogScope();
scope.AddArtifactType(ArtifactType_Dump);
scope.AddEndpointInfo(processInfo.EndpointInfo);
return new EgressStreamResult(
token => _diagnosticServices.GetDump(processInfo, type, token),
egressProvider,
dumpFileName,
processInfo.EndpointInfo,
ContentTypes.ApplicationOctectStream,
scope);
}
}, processFilter, ArtifactType_Dump));
}
private ActionResult Result(
string artifactType,
string providerName,
Func <Stream, CancellationToken, Task> action,
string fileName,
string contentType,
IEndpointInfo endpointInfo,
bool asAttachment = true)
{
KeyValueLogScope scope = new KeyValueLogScope();
scope.AddArtifactType(artifactType);
scope.AddEndpointInfo(endpointInfo);
if (string.IsNullOrEmpty(providerName))
{
return(new OutputStreamResult(
action,
contentType,
asAttachment ? fileName : null,
scope));
}
else
{
return(new EgressStreamResult(
action,
providerName,
fileName,
endpointInfo,
contentType,
scope));
}
}
