delroth/hydra
0
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

Acquire the send lock only while actually sending

Browse source 
Thus, we no longer hold the send lock while substituting missing paths
on the build machine. This is a good thing in particular for macOS
builders which have a tendency to hang forever in curl downloads.
This commit is contained in:
Eelco Dolstra 2017-09-01 16:28:49 +02:00
parent 50ab80caf2
commit 4af97c57f5
No known key found for this signature in database
GPG key ID: 8170B4726D7198DE
1 changed files with 5 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

9
src/hydra-queue-runner/build-remote.cc
View file

@ -77,7 +77,7 @@ static void openConnection(Machine::ptr machine, Path tmpDir, int stderrFD, Chil
}
static void copyClosureTo(ref<Store> destStore,
static void copyClosureTo(std::timed_mutex & sendMutex, ref<Store> destStore,
FdSource & from, FdSink & to, const PathSet & paths,
bool useSubstitutes = false)
{
@ -107,6 +107,9 @@ static void copyClosureTo(ref<Store> destStore,
printMsg(lvlDebug, format("sending %1% missing paths") % missing.size());
std::unique_lock<std::timed_mutex> sendLock(sendMutex,
std::chrono::seconds(600));
to << cmdImportPaths;
destStore->exportPaths(missing, to);
to.flush();
@ -229,15 +232,13 @@ void State::buildRemote(ref<Store> destStore,
/* Copy the input closure. */
if (/* machine->sshName != "localhost" */ true) {
auto mc1 = std::make_shared<MaintainCount>(nrStepsWaiting);
std::unique_lock<std::timed_mutex> sendLock(
machine->state->sendLock, std::chrono::seconds(600));
mc1.reset();
MaintainCount mc2(nrStepsCopyingTo);
printMsg(lvlDebug, format("sending closure of ‘%1%’ to ‘%2%’") % step->drvPath % machine->sshName);
auto now1 = std::chrono::steady_clock::now();
copyClosureTo(destStore, from, to, inputs, true);
copyClosureTo(machine->state->sendLock, destStore, from, to, inputs, true);
auto now2 = std::chrono::steady_clock::now();