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Move Processes and Threads to be stored in SharedPtr

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Reference counting lets us pass these around a bit more easily.

SharedPtr was lightly tested using uint64_t in the main zion funcion.

Also add a sleep functionality instead of panicking. Functionally the
same right now since we don't preempt.
This commit is contained in:
Drew Galbraith 2023-05-29 15:50:38 -07:00
parent 9f3ffbf5b4
commit 80d2bf1aaa
6 changed files with 96 additions and 23 deletions
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9
zion/scheduler/thread.h
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@ -2,6 +2,8 @@
#include <stdint.h>
#include "lib/shared_ptr.h"
// Forward decl due to cyclic dependency.
class Process;
@ -15,9 +17,10 @@ class Thread {
BLOCKED,
FINISHED,
};
static Thread* RootThread(Process* root_proc);
static SharedPtr<Thread> RootThread(Process* root_proc);
explicit Thread(Process* proc, uint64_t tid, uint64_t elf_ptr);
explicit Thread(const SharedPtr<Process>& proc, uint64_t tid,
uint64_t elf_ptr);
uint64_t tid() { return id_; };
uint64_t pid();
@ -38,7 +41,7 @@ class Thread {
private:
// Special constructor for the root thread only.
Thread(Process* proc) : process_(proc), id_(0) {}
Process* process_;
SharedPtr<Process> process_;
uint64_t id_;
State state_ = RUNNABLE;