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[Zion] Add a thread sleep call.

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For now this can only sleep in increments of the scheduler quantum
(currently 50ms). It also uses a somewhat ineffecient way of tracking
the sleeping threads - it will scale linearly with the number of
sleeping threads.
This commit is contained in:
Drew Galbraith 2023-12-07 00:19:17 -08:00
parent 66e94ac41b
commit 8adde27d9b
9 changed files with 48 additions and 5 deletions
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5
zion/object/thread.h
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@ -29,6 +29,7 @@ class Thread : public KernelObject, public glcr::IntrusiveListNode<Thread> {
RUNNING,
RUNNABLE,
BLOCKED,
SLEEPING,
CLEANUP,
FINISHED,
};
@ -69,6 +70,9 @@ class Thread : public KernelObject, public glcr::IntrusiveListNode<Thread> {
void Wait();
void SetSleepTicks(uint64_t sleep_ticks) { sleep_ticks_ = sleep_ticks; }
bool DecrementSleepTicks() { return --sleep_ticks_ == 0; }
private:
friend class glcr::MakeRefCountedFriend<Thread>;
Thread(Process& proc, uint64_t tid);
@ -79,6 +83,7 @@ class Thread : public KernelObject, public glcr::IntrusiveListNode<Thread> {
State state_ = CREATED;
bool is_kernel_ = false;
uint64_t user_stack_base_;
uint64_t sleep_ticks_;
// Startup Context for the thread.
uint64_t rip_;