操作系统学习笔记(28)--初始化进程调度

struct Kernel_Thread {
ulong_t esp;			 /* offset 0 */
volatile ulong_t numTicks;		 /* offset 4 */
int priority;
DEFINE_LINK(Thread_Queue, Kernel_Thread);
void* stackPage;
struct User_Context* userContext;
struct Kernel_Thread* owner;
int refCount;

/* These fields are used to implement the Join() function */
bool alive;
struct Thread_Queue joinQueue;
int exitCode;

/* The kernel thread id; also used as process id */
int pid;

/* Link fields for list of all threads in the system. */
DEFINE_LINK(All_Thread_List, Kernel_Thread);

/* Array of MAX_TLOCAL_KEYS pointers to thread-local data. */
#define MAX_TLOCAL_KEYS 128
const void* tlocalData[MAX_TLOCAL_KEYS];