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Recursive Nix: Handle concurrent client connections

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This commit is contained in:
Eelco Dolstra 2019-11-04 14:27:28 +01:00
parent c119ab9db0
commit 69326f3637
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GPG key ID: 8170B4726D7198DE
1 changed files with 21 additions and 10 deletions
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31
src/libstore/build.cc
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@ -895,6 +895,9 @@ private:
/* The daemon main thread. */ /* The daemon main thread. */
std::thread daemonThread; std::thread daemonThread;
/* The daemon worker threads. */
std::vector<std::thread> daemonWorkerThreads;
/* Paths that were added via recursive Nix calls. */ /* Paths that were added via recursive Nix calls. */
PathSet addedPaths; PathSet addedPaths;
@ -2875,17 +2878,19 @@ void DerivationGoal::startDaemon()
debug("received daemon connection"); debug("received daemon connection");
// FIXME: process on a separate thread. auto workerThread = std::thread([this, store, remote{std::move(remote)}]() {
FdSource from(remote.get()); FdSource from(remote.get());
FdSink to(remote.get()); FdSink to(remote.get());
try { try {
daemon::processConnection(store, from, to, daemon::processConnection(store, from, to,
daemon::NotTrusted, daemon::Recursive, "nobody", 65535); daemon::NotTrusted, daemon::Recursive, "nobody", 65535);
} catch (SysError &) { debug("terminated daemon connection");
ignoreException(); } catch (SysError &) {
} ignoreException();
}
});
debug("terminated daemon connection"); daemonWorkerThreads.push_back(std::move(workerThread));
} }
debug("daemon shutting down"); debug("daemon shutting down");
@ -2901,6 +2906,12 @@ void DerivationGoal::stopDaemon()
if (daemonThread.joinable()) if (daemonThread.joinable())
daemonThread.join(); daemonThread.join();
// FIXME: should prune worker threads more quickly.
// FIXME: shutdown the client socket to speed up worker termination.
for (auto & thread : daemonWorkerThreads)
thread.join();
daemonWorkerThreads.clear();
daemonSocket = -1; daemonSocket = -1;
} }