private void SchedulePostFetchJob(List <string> packIndexes)
{
if (packIndexes.Count == 0)
{
return;
}
// We make a best-effort request to run MIDX and commit-graph writes
using (NamedPipeClient pipeClient = new NamedPipeClient(this.Context.Enlistment.NamedPipeName))
{
if (!pipeClient.Connect())
{
this.Context.Tracer.RelatedWarning(
metadata: this.CreateEventMetadata(),
message: "Failed to connect to GSD.Mount process. Skipping post-fetch job request.",
keywords: Keywords.Telemetry);
return;
}
NamedPipeMessages.RunPostFetchJob.Request request = new NamedPipeMessages.RunPostFetchJob.Request(packIndexes);
if (pipeClient.TrySendRequest(request.CreateMessage()))
{
NamedPipeMessages.Message response;
if (pipeClient.TryReadResponse(out response))
{
this.Context.Tracer.RelatedInfo("Requested post-fetch job with resonse '{0}'", response.Header);
}
else
{
this.Context.Tracer.RelatedWarning(
metadata: this.CreateEventMetadata(),
message: "Requested post-fetch job failed to respond",
keywords: Keywords.Telemetry);
}
}
else
{
this.Context.Tracer.RelatedWarning(
metadata: this.CreateEventMetadata(),
message: "Message to named pipe failed to send, skipping post-fetch job request.",
keywords: Keywords.Telemetry);
}
}
}
private static bool TrySchedulePostFetchJob(ITracer tracer, string namedPipeName, List <string> packIndexes)
{
// We make a best-effort request to run MIDX and commit-graph writes
using (NamedPipeClient pipeClient = new NamedPipeClient(namedPipeName))
{
if (!pipeClient.Connect())
{
tracer.RelatedWarning(
metadata: null,
message: "Failed to connect to GVFS.Mount process. Skipping post-fetch job request.",
keywords: Keywords.Telemetry);
return(false);
}
NamedPipeMessages.RunPostFetchJob.Request request = new NamedPipeMessages.RunPostFetchJob.Request(packIndexes);
if (pipeClient.TrySendRequest(request.CreateMessage()))
{
NamedPipeMessages.Message response;
if (pipeClient.TryReadResponse(out response))
{
tracer.RelatedInfo("Requested post-fetch job with resonse '{0}'", response.Header);
return(true);
}
else
{
tracer.RelatedWarning(
metadata: null,
message: "Requested post-fetch job failed to respond",
keywords: Keywords.Telemetry);
}
}
else
{
tracer.RelatedWarning(
metadata: null,
message: "Message to named pipe failed to send, skipping post-fetch job request.",
keywords: Keywords.Telemetry);
}
}
return(false);
}
private void HandlePostFetchJobRequest(NamedPipeMessages.Message message, NamedPipeServer.Connection connection)
{
NamedPipeMessages.RunPostFetchJob.Request request = new NamedPipeMessages.RunPostFetchJob.Request(message);
this.tracer.RelatedInfo("Received post-fetch job request with body {0}", message.Body);
NamedPipeMessages.RunPostFetchJob.Response response;
if (this.currentState == MountState.Ready)
{
List <string> packIndexes = JsonConvert.DeserializeObject <List <string> >(message.Body);
this.maintenanceScheduler.EnqueueOneTimeStep(new PostFetchStep(this.context, packIndexes));
response = new NamedPipeMessages.RunPostFetchJob.Response(NamedPipeMessages.RunPostFetchJob.QueuedResult);
}
else
{
response = new NamedPipeMessages.RunPostFetchJob.Response(NamedPipeMessages.RunPostFetchJob.MountNotReadyResult);
}
connection.TrySendResponse(response.CreateMessage());
}
private void HandlePostFetchJobRequest(NamedPipeMessages.Message message, NamedPipeServer.Connection connection)
{
NamedPipeMessages.RunPostFetchJob.Request request = new NamedPipeMessages.RunPostFetchJob.Request(message);
this.tracer.RelatedInfo("Received post-fetch job request with body {0}", message.Body);
NamedPipeMessages.RunPostFetchJob.Response response;
if (this.currentState == MountState.Ready)
{
List <string> packIndexes = JsonConvert.DeserializeObject <List <string> >(message.Body);
this.fileSystemCallbacks.LaunchPostFetchJob(packIndexes);
response = new NamedPipeMessages.RunPostFetchJob.Response(NamedPipeMessages.RunPostFetchJob.QueuedResult);
}
else
{
response = new NamedPipeMessages.RunPostFetchJob.Response(NamedPipeMessages.RunPostFetchJob.MountNotReadyResult);
}
connection.TrySendResponse(response.CreateMessage());
}
private void PrefetchCommits(ITracer tracer, GVFSEnlistment enlistment, GitObjectsHttpRequestor objectRequestor, CacheServerInfo cacheServer)
{
bool success;
string error = string.Empty;
PhysicalFileSystem fileSystem = new PhysicalFileSystem();
GitRepo repo = new GitRepo(tracer, enlistment, fileSystem);
GVFSContext context = new GVFSContext(tracer, fileSystem, repo, enlistment);
GitObjects gitObjects = new GVFSGitObjects(context, objectRequestor);
List <string> packIndexes = null;
if (this.Verbose)
{
success = this.TryPrefetchCommitsAndTrees(tracer, enlistment, fileSystem, gitObjects, out error, out packIndexes);
}
else
{
success = this.ShowStatusWhileRunning(
() => this.TryPrefetchCommitsAndTrees(tracer, enlistment, fileSystem, gitObjects, out error, out packIndexes),
"Fetching commits and trees " + this.GetCacheServerDisplay(cacheServer));
}
if (success)
{
if (packIndexes.Count == 0)
{
return;
}
// We make a best-effort request to run MIDX and commit-graph writes
using (NamedPipeClient pipeClient = new NamedPipeClient(enlistment.NamedPipeName))
{
if (!pipeClient.Connect())
{
tracer.RelatedWarning(
metadata: null,
message: "Failed to connect to GVFS. Skipping post-fetch job request.",
keywords: Keywords.Telemetry);
return;
}
NamedPipeMessages.RunPostFetchJob.Request request = new NamedPipeMessages.RunPostFetchJob.Request(packIndexes);
if (pipeClient.TrySendRequest(request.CreateMessage()))
{
NamedPipeMessages.Message response;
if (pipeClient.TryReadResponse(out response))
{
tracer.RelatedInfo("Requested post-fetch job with resonse '{0}'", response.Header);
}
else
{
tracer.RelatedWarning(
metadata: null,
message: "Requested post-fetch job failed to respond",
keywords: Keywords.Telemetry);
}
}
else
{
tracer.RelatedWarning(
metadata: null,
message: "Message to named pipe failed to send, skipping post-fetch job request.",
keywords: Keywords.Telemetry);
}
}
}
else
{
this.ReportErrorAndExit(tracer, "Prefetching commits and trees failed: " + error);
}
}
public static bool TryPrefetchCommitsAndTrees(
ITracer tracer,
GVFSEnlistment enlistment,
PhysicalFileSystem fileSystem,
GitObjects gitObjects,
out string error)
{
List <string> packIndexes;
using (FileBasedLock prefetchLock = new FileBasedLock(
fileSystem,
tracer,
Path.Combine(enlistment.GitPackRoot, PrefetchCommitsAndTreesLock),
enlistment.EnlistmentRoot,
overwriteExistingLock: true))
{
WaitUntilLockIsAcquired(tracer, prefetchLock);
long maxGoodTimeStamp;
gitObjects.DeleteStaleTempPrefetchPackAndIdxs();
if (!TryGetMaxGoodPrefetchTimestamp(tracer, enlistment, fileSystem, gitObjects, out maxGoodTimeStamp, out error))
{
return(false);
}
if (!gitObjects.TryDownloadPrefetchPacks(maxGoodTimeStamp, out packIndexes))
{
error = "Failed to download prefetch packs";
return(false);
}
}
if (packIndexes == null || packIndexes.Count == 0)
{
return(true);
}
// We make a best-effort request to run MIDX and commit-graph writes
using (NamedPipeClient pipeClient = new NamedPipeClient(enlistment.NamedPipeName))
{
if (!pipeClient.Connect())
{
tracer.RelatedWarning(
metadata: null,
message: "Failed to connect to GVFS. Skipping post-fetch job request.",
keywords: Keywords.Telemetry);
return(true);
}
NamedPipeMessages.RunPostFetchJob.Request request = new NamedPipeMessages.RunPostFetchJob.Request(packIndexes);
if (pipeClient.TrySendRequest(request.CreateMessage()))
{
NamedPipeMessages.Message response;
if (pipeClient.TryReadResponse(out response))
{
tracer.RelatedInfo("Requested post-fetch job with resonse '{0}'", response.Header);
return(true);
}
else
{
tracer.RelatedWarning(
metadata: null,
message: "Requested post-fetch job failed to respond",
keywords: Keywords.Telemetry);
}
}
else
{
tracer.RelatedWarning(
metadata: null,
message: "Message to named pipe failed to send, skipping post-fetch job request.",
keywords: Keywords.Telemetry);
}
}
return(false);
}
