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Merge pull request #5106 from andir/libstore-waiter-set

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libstore: use set instead of list for waiter list
This commit is contained in:
Eelco Dolstra 2021-08-09 14:46:49 +02:00 committed by GitHub
parent 6c50dc1faf a9cb1ca32c
commit 873df3ab03
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GPG key ID: 4AEE18F83AFDEB23
2 changed files with 5 additions and 10 deletions
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13
src/libstore/build/goal.cc
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@ -13,11 +13,9 @@ bool CompareGoalPtrs::operator() (const GoalPtr & a, const GoalPtr & b) const {
void addToWeakGoals(WeakGoals & goals, GoalPtr p)
{
// FIXME: necessary?
// FIXME: O(n)
for (auto & i : goals)
if (i.lock() == p) return;
goals.push_back(p);
if (goals.find(p) != goals.end())
return;
goals.insert(p);
}
@ -46,10 +44,7 @@ void Goal::waiteeDone(GoalPtr waitee, ExitCode result)
/* If we failed and keepGoing is not set, we remove all
remaining waitees. */
for (auto & goal : waitees) {
WeakGoals waiters2;
for (auto & j : goal->waiters)
if (j.lock() != shared_from_this()) waiters2.push_back(j);
goal->waiters = waiters2;
goal->waiters.extract(shared_from_this());
}
waitees.clear();

2
src/libstore/build/goal.hh
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@ -19,7 +19,7 @@ struct CompareGoalPtrs {
/* Set of goals. */
typedef set<GoalPtr, CompareGoalPtrs> Goals;
typedef list<WeakGoalPtr> WeakGoals;
typedef set<WeakGoalPtr, std::owner_less<WeakGoalPtr>> WeakGoals;
/* A map of paths to goals (and the other way around). */
typedef std::map<StorePath, WeakGoalPtr> WeakGoalMap;