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Thread: Normalize all for_each constructs to use IterationDecision

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This way a caller can abort the for_each early if they want.
This commit is contained in:
Robin Burchell 2019-07-19 12:16:00 +02:00 • committed by Andreas Kling
parent a5d80f7e3b
commit e74dce65e6
3 changed files with 39 additions and 24 deletions
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50
Kernel/Thread.h
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@ -262,15 +262,15 @@ public:
void set_thread_list(InlineLinkedList<Thread>*);
template<typename Callback>
static void for_each_in_state(State, Callback);
static IterationDecision for_each_in_state(State, Callback);
template<typename Callback>
static void for_each_living(Callback);
static IterationDecision for_each_living(Callback);
template<typename Callback>
static void for_each_runnable(Callback);
static IterationDecision for_each_runnable(Callback);
template<typename Callback>
static void for_each_nonrunnable(Callback);
static IterationDecision for_each_nonrunnable(Callback);
template<typename Callback>
static void for_each(Callback);
static IterationDecision for_each(Callback);
static bool is_runnable_state(Thread::State state)
{
@ -313,63 +313,77 @@ private:
HashTable<Thread*>& thread_table();
template<typename Callback>
inline void Thread::for_each_in_state(State state, Callback callback)
inline IterationDecision Thread::for_each_in_state(State state, Callback callback)
{
ASSERT_INTERRUPTS_DISABLED();
for (auto* thread = thread_list_for_state(state)->head(); thread;) {
auto* next_thread = thread->next();
if (thread->state() == state)
callback(*thread);
if (thread->state() == state) {
if (callback(*thread) == IterationDecision::Break)
return IterationDecision::Break;
}
thread = next_thread;
}
return IterationDecision::Continue;
}
template<typename Callback>
inline void Thread::for_each_living(Callback callback)
inline IterationDecision Thread::for_each_living(Callback callback)
{
ASSERT_INTERRUPTS_DISABLED();
for (auto* thread = g_runnable_threads->head(); thread;) {
auto* next_thread = thread->next();
if (thread->state() != Thread::State::Dead && thread->state() != Thread::State::Dying)
callback(*thread);
if (callback(*thread) == IterationDecision::Break)
return IterationDecision::Break;
thread = next_thread;
}
for (auto* thread = g_nonrunnable_threads->head(); thread;) {
auto* next_thread = thread->next();
if (thread->state() != Thread::State::Dead && thread->state() != Thread::State::Dying)
callback(*thread);
if (callback(*thread) == IterationDecision::Break)
return IterationDecision::Break;
thread = next_thread;
}
return IterationDecision::Continue;
}
template<typename Callback>
inline void Thread::for_each(Callback callback)
inline IterationDecision Thread::for_each(Callback callback)
{
ASSERT_INTERRUPTS_DISABLED();
for_each_runnable(callback);
for_each_nonrunnable(callback);
auto ret = for_each_runnable(callback);
if (ret == IterationDecision::Break)
return ret;
return for_each_nonrunnable(callback);
}
template<typename Callback>
inline void Thread::for_each_runnable(Callback callback)
inline IterationDecision Thread::for_each_runnable(Callback callback)
{
ASSERT_INTERRUPTS_DISABLED();
for (auto* thread = g_runnable_threads->head(); thread;) {
auto* next_thread = thread->next();
if (callback(*thread) == IterationDecision::Break)
return;
return IterationDecision::Break;
thread = next_thread;
}
return IterationDecision::Continue;
}
template<typename Callback>
inline void Thread::for_each_nonrunnable(Callback callback)
inline IterationDecision Thread::for_each_nonrunnable(Callback callback)
{
ASSERT_INTERRUPTS_DISABLED();
for (auto* thread = g_nonrunnable_threads->head(); thread;) {
auto* next_thread = thread->next();
if (callback(*thread) == IterationDecision::Break)
return;
return IterationDecision::Break;
thread = next_thread;
}
return IterationDecision::Continue;
}