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Kernel: Make Thread::Blocker::m_thread a NonnullRefPtr<Thread>

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There's no harm in the blocker always knowing which thread it originated
from. It also simplifies some logic since we don't need to think about
it ever being null.
This commit is contained in:
Andreas Kling 2021-08-24 01:01:50 +02:00
commit a58c4bbcf5
Notes: sideshowbarker 2024-07-18 05:20:04 +09:00
2 changed files with 10 additions and 15 deletions
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20
Kernel/Thread.h
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@ -346,7 +346,10 @@ public:
BlockResult end_blocking(Badge<Thread>, bool);
protected:
Blocker() { }
Blocker()
: m_thread(*Thread::current())
{
}
void do_set_interrupted_by_death()
{
@ -371,19 +374,14 @@ public:
}
void unblock_from_blocker()
{
RefPtr<Thread> thread;
{
SpinlockLocker lock(m_lock);
if (m_is_blocking) {
m_is_blocking = false;
VERIFY(m_blocked_thread);
thread = m_blocked_thread;
}
if (!m_is_blocking)
return;
m_is_blocking = false;
}
if (thread)
thread->unblock_from_blocker(*this);
m_thread->unblock_from_blocker(*this);
}
bool add_to_blocker_set(BlockerSet&, void* = nullptr);
@ -393,7 +391,7 @@ public:
private:
BlockerSet* m_blocker_set { nullptr };
Thread* m_blocked_thread { nullptr };
NonnullRefPtr<Thread> m_thread;
u8 m_was_interrupted_by_signal { 0 };
bool m_is_blocking { false };
bool m_was_interrupted_by_death { false };