acadia/zion/scheduler/thread.h

43 lines
967 B
C++

#pragma once
#include <stdint.h>
// Forward decl due to cyclic dependency.
class Process;
class Thread {
public:
static Thread* RootThread(Process* root_proc);
explicit Thread(Process* proc, uint64_t tid, uint64_t elf_ptr);
uint64_t tid() { return id_; };
uint64_t pid();
Process& process() { return *process_; }
uint64_t* Rsp0Ptr() { return &rsp0_; }
uint64_t Rsp0Start() { return rsp0_start_; }
// Called the first time the thread starts up.
void Init();
// FIXME: Probably make this private.
Thread* next_thread_;
private:
// Special constructor for the root thread only.
Thread(Process* proc) : process_(proc), id_(0) {}
Process* process_;
uint64_t id_;
uint64_t elf_ptr_;
// Stack pointer to take on resume.
// Stack will contain the full thread context.
uint64_t rsp0_;
// Stack pointer to take when returning from userspace.
// I don't think me mind clobbering the stack here.
uint64_t rsp0_start_;
};