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Pull fut.get() out of the lock

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This is https://gerrit.lix.systems/c/lix/+/1462 by @jade_

see: https://git.lix.systems/lix-project/lix/issues/366
see: https://gerrit.lix.systems/c/lix/+/1462
(cherry picked from commit 46f6505865)
This commit is contained in:
Jeremy Kolb 2024-09-04 10:14:51 -04:00 • committed by Mergify
parent e0c8b0fc4f
commit 1a21eb43af
1 changed files with 14 additions and 3 deletions
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17
src/libstore/store-api.cc
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@ -822,14 +822,25 @@ StorePathSet Store::queryValidPaths(const StorePathSet & paths, SubstituteFlag m
auto doQuery = [&](const StorePath & path) {
checkInterrupt();
queryPathInfo(path, {[path, &state_, &wakeup](std::future<ref<const ValidPathInfo>> fut) {
auto state(state_.lock());
bool exists = false;
std::exception_ptr newExc{};
try {
auto info = fut.get();
state->valid.insert(path);
exists = true;
} catch (InvalidPath &) {
} catch (...) {
state->exc = std::current_exception();
newExc = std::current_exception();
}
auto state(state_.lock());
if (exists)
state->valid.insert(path);
if (newExc != nullptr)
state->exc = newExc;
assert(state->left);
if (!--state->left)
wakeup.notify_one();