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task: don't hold the mutex while disposing of pending Tasks

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In the event that someday Barrier allows users to force execution of
its pending tasks prior to the destruction of the BarrierState object,
we'll be ready to submit those Tasks for execution without waiting for
the BarrierState mutex lock.

Signed-off-by: Zygo Blaxell <bees@furryterror.org>
This commit is contained in:
Zygo Blaxell 2021-12-07 00:17:57 -05:00
parent 2f25f89067
commit 090fa39995
1 changed files with 4 additions and 2 deletions
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6
lib/task.cc
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@ -791,11 +791,13 @@ namespace crucible {
void
BarrierState::release()
{
set<Task> tasks_local;
unique_lock<mutex> lock(m_mutex);
for (auto i : m_tasks) {
swap(tasks_local, m_tasks);
lock.unlock();
for (const auto &i : tasks_local) {
i.run();
}
m_tasks.clear();
}
BarrierState::~BarrierState()