diff options
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/proc.h | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/kernel/proc.h b/kernel/proc.h index 373b605..1524c74 100644 --- a/kernel/proc.h +++ b/kernel/proc.h @@ -87,16 +87,20 @@ enum procstate { UNUSED, SLEEPING, RUNNABLE, RUNNING, ZOMBIE }; // Per-process state struct proc { struct spinlock lock; + + // p->lock must be held when using these: + enum procstate state; // Process state + struct proc *parent; // Parent process + void *chan; // If non-zero, sleeping on chan + int killed; // If non-zero, have been killed + int pid; // Process ID + + // these are private to the process, so p->lock need not be held. char *kstack; // Bottom of kernel stack for this process uint64 sz; // Size of process memory (bytes) pagetable_t pagetable; // Page table - enum procstate state; // Process state - int pid; // Process ID - struct proc *parent; // Parent process struct trapframe *tf; // data page for trampoline.S struct context context; // swtch() here to run process - void *chan; // If non-zero, sleeping on chan - int killed; // If non-zero, have been killed struct file *ofile[NOFILE]; // Open files struct inode *cwd; // Current directory char name[16]; // Process name (debugging) |