diff options
Diffstat (limited to 'kernel/proc.h')
| -rw-r--r-- | kernel/proc.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/kernel/proc.h b/kernel/proc.h index d021857..a195b02 100644 --- a/kernel/proc.h +++ b/kernel/proc.h @@ -91,6 +91,7 @@ struct proc { int killed; // If non-zero, have been killed int xstate; // Exit status to be returned to parent's wait int pid; // Process ID + int trace_mask; // SYS_trace mask (1 << SYS_xxx) // wait_lock must be held when using this: struct proc *parent; // Parent process @@ -100,8 +101,14 @@ struct proc { uint64 sz; // Size of process memory (bytes) pagetable_t pagetable; // User page table struct trapframe *trapframe; // data page for trampoline.S + struct usyscall *usyscall; // data page for usyscall struct context context; // swtch() here to run process struct file *ofile[NOFILE]; // Open files struct inode *cwd; // Current directory char name[16]; // Process name (debugging) + int alarm_interval; // sigalarm syscall interval + uint64 alarm_handler; // sigalarm syscall handler + int alarm_tickspassed; // record how many ticks passed since last sigalarm handler call + int alarm_caninvoke; // prevent re-entrant calls to handler + struct trapframe *atpfm; // trapframe to resume after handling, must hold p->lock }; |