forked from lix-project/lix
90 lines
2.1 KiB
C++
90 lines
2.1 KiB
C++
#include "goal.hh"
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#include "worker.hh"
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namespace nix {
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bool CompareGoalPtrs::operator() (const GoalPtr & a, const GoalPtr & b) const {
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string s1 = a->key();
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string s2 = b->key();
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return s1 < s2;
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}
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void addToWeakGoals(WeakGoals & goals, GoalPtr p)
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{
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// FIXME: necessary?
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// FIXME: O(n)
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for (auto & i : goals)
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if (i.lock() == p) return;
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goals.push_back(p);
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}
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void Goal::addWaitee(GoalPtr waitee)
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{
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waitees.insert(waitee);
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addToWeakGoals(waitee->waiters, shared_from_this());
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}
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void Goal::waiteeDone(GoalPtr waitee, ExitCode result)
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{
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assert(waitees.find(waitee) != waitees.end());
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waitees.erase(waitee);
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trace(fmt("waitee '%s' done; %d left", waitee->name, waitees.size()));
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if (result == ecFailed || result == ecNoSubstituters || result == ecIncompleteClosure) ++nrFailed;
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if (result == ecNoSubstituters) ++nrNoSubstituters;
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if (result == ecIncompleteClosure) ++nrIncompleteClosure;
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if (waitees.empty() || (result == ecFailed && !settings.keepGoing)) {
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/* If we failed and keepGoing is not set, we remove all
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remaining waitees. */
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for (auto & goal : waitees) {
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WeakGoals waiters2;
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for (auto & j : goal->waiters)
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if (j.lock() != shared_from_this()) waiters2.push_back(j);
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goal->waiters = waiters2;
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}
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waitees.clear();
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worker.wakeUp(shared_from_this());
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}
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}
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void Goal::amDone(ExitCode result, std::optional<Error> ex)
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{
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trace("done");
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assert(exitCode == ecBusy);
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assert(result == ecSuccess || result == ecFailed || result == ecNoSubstituters || result == ecIncompleteClosure);
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exitCode = result;
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if (ex) {
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if (!waiters.empty())
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logError(ex->info());
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else
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this->ex = std::move(*ex);
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}
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for (auto & i : waiters) {
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GoalPtr goal = i.lock();
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if (goal) goal->waiteeDone(shared_from_this(), result);
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}
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waiters.clear();
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worker.removeGoal(shared_from_this());
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}
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void Goal::trace(const FormatOrString & fs)
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{
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debug("%1%: %2%", name, fs.s);
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}
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}
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