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scheduler + thread_start rework

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Christoph Urlacher
2022-07-22 02:33:45 +02:00
parent 9ad0d81d07
commit 7e86f961fe
3 changed files with 116 additions and 67 deletions
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12
c_os/kernel/threads/Scheduler.h
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@ -38,20 +38,21 @@ private:
// Scheduler wird evt. von einer Unterbrechung vom Zeitgeber gerufen,
// bevor er initialisiert wurde
unsigned int idle_tid = 0;
unsigned int idle_tid = 0U;
// NOTE: I would have to release the lock when switching threads but I don't know exactly how to do this
// in the assembly function
// SpinLock lock; // Use spinlock instead of cpu.disable_int() because it still allows preemption
// // for threads that don't use the scheduler
// Make it easy to switch locking mechanism
// Make it easy to switch locking mechanism in the future
static void lock();
static void unlock();
void dispatch(Thread* prev); // Switches from prev to current active
void start(bse::Vector<bse::unique_ptr<Thread>>::Iterator next); // Switches from prev to current active
void switch_to(Thread* prev_raw, bse::Vector<bse::unique_ptr<Thread>>::Iterator next); // Switches from prev to current active
// ruft nur der Idle-Thread (erster Thread der vom Scheduler gestartet wird)
// Kann nur vom Idle-Thread aufgerufen werden (erster Thread der vom Scheduler gestartet wird)
void enable_preemption(unsigned int tid) { idle_tid = tid; }
friend class IdleThread;
@ -97,7 +98,8 @@ public:
void exit();
// Thread mit 'Gewalt' terminieren
void kill(unsigned int tid);
void kill(unsigned int tid, bse::unique_ptr<Thread>* ptr);
void kill(unsigned int tid) { kill(tid, nullptr); }
// CPU freiwillig abgeben und Auswahl des naechsten Threads
void yield();