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Revert "libstore: remove worker removeGoal"

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Revert submission 1946

Reason for revert: regression in building (found via bisection)

Reported by users:
> error: path '/nix/store/04ca5xwvasz6s3jg0k7njz6rzi0d225w-jq-1.7.1-dev' does not exist in the store

Reverted changes: /q/submissionid:1946

Change-Id: I6f1a4b2f7d7ef5ca430e477fc32bca62fd97036b
This commit is contained in:
raito 2024-10-01 10:47:10 +00:00
parent a16ceb9411
commit 8e05cc1e6c
2 changed files with 43 additions and 28 deletions
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66
src/libstore/build/worker.cc
View file

@ -65,26 +65,7 @@ std::pair<std::shared_ptr<G>, kj::Promise<void>> Worker::makeGoalCommon(
auto & goal_weak = it->second;
auto goal = goal_weak.goal.lock();
if (!goal) {
struct Deleter
{
std::map<ID, CachedGoal<G>> * from;
std::map<ID, CachedGoal<G>>::const_iterator iter;
void operator()(G * g)
{
from->erase(iter);
delete g;
}
};
// this dance is necessary to be memory-safe in exceptional cases.
// if *anything* here throws we must still delete the goal object.
goal = [&] {
std::unique_ptr<G, Deleter> tmp(nullptr, Deleter{&map, it});
tmp.reset(create().release());
return tmp;
}();
goal = create();
goal->notify = std::move(goal_weak.fulfiller);
goal_weak.goal = goal;
wakeUp(goal);
@ -184,6 +165,21 @@ std::pair<GoalPtr, kj::Promise<void>> Worker::makeGoal(const DerivedPath & req,
}
template<typename G>
static void removeGoal(std::shared_ptr<G> goal, auto & goalMap)
{
/* !!! inefficient */
for (auto i = goalMap.begin();
i != goalMap.end(); )
if (i->second.goal.lock() == goal) {
auto j = i; ++j;
goalMap.erase(i);
i = j;
}
else ++i;
}
void Worker::goalFinished(GoalPtr goal, Goal::Finished & f)
{
goal->trace("done");
@ -196,16 +192,9 @@ void Worker::goalFinished(GoalPtr goal, Goal::Finished & f)
hashMismatch |= f.hashMismatch;
checkMismatch |= f.checkMismatch;
removeGoal(goal);
goal->notify->fulfill();
goal->cleanup();
if (topGoals.find(goal) != topGoals.end()) {
topGoals.erase(goal);
/* If a top-level goal failed, then kill all other goals
(unless keepGoing was set). */
if (goal->exitCode == Goal::ecFailed && !settings.keepGoing)
topGoals.clear();
}
}
void Worker::handleWorkResult(GoalPtr goal, Goal::WorkResult how)
@ -220,6 +209,27 @@ void Worker::handleWorkResult(GoalPtr goal, Goal::WorkResult how)
updateStatistics();
}
void Worker::removeGoal(GoalPtr goal)
{
if (auto drvGoal = std::dynamic_pointer_cast<DerivationGoal>(goal))
nix::removeGoal(drvGoal, derivationGoals);
else if (auto subGoal = std::dynamic_pointer_cast<PathSubstitutionGoal>(goal))
nix::removeGoal(subGoal, substitutionGoals);
else if (auto subGoal = std::dynamic_pointer_cast<DrvOutputSubstitutionGoal>(goal))
nix::removeGoal(subGoal, drvOutputSubstitutionGoals);
else
assert(false);
if (topGoals.find(goal) != topGoals.end()) {
topGoals.erase(goal);
/* If a top-level goal failed, then kill all other goals
(unless keepGoing was set). */
if (goal->exitCode == Goal::ecFailed && !settings.keepGoing)
topGoals.clear();
}
}
void Worker::wakeUp(GoalPtr goal)
{
goal->trace("woken up");

5
src/libstore/build/worker.hh
View file

@ -158,6 +158,11 @@ private:
*/
void waitForInput();
/**
* Remove a dead goal.
*/
void removeGoal(GoalPtr goal);
/**
* Registers a running child process.
*/