diff options
Diffstat (limited to 'kern')
| -rw-r--r-- | kern/task.c | 16 | ||||
| -rw-r--r-- | kern/task.h | 3 |
2 files changed, 18 insertions, 1 deletions
diff --git a/kern/task.c b/kern/task.c index e91c192b..e9158c73 100644 --- a/kern/task.c +++ b/kern/task.c @@ -178,6 +178,7 @@ task_create_kernel( new_task->may_assign = TRUE; new_task->assign_active = FALSE; + new_task->essential = FALSE; #if MACH_PCSAMPLE new_task->pc_sample.buffer = 0; @@ -1157,6 +1158,21 @@ task_set_name( } /* + * task_set_essential + * + * Set whether TASK is an essential task, i.e. the whole system will crash + * if this task crashes. + */ +kern_return_t +task_set_essential( + task_t task, + boolean_t essential) +{ + task->essential = !!essential; + return KERN_SUCCESS; +} + +/* * task_collect_scan: * * Attempt to free resources owned by tasks. diff --git a/kern/task.h b/kern/task.h index 52eb8324..6251317c 100644 --- a/kern/task.h +++ b/kern/task.h @@ -64,7 +64,8 @@ struct task { /* Flags */ unsigned int active:1, /* Task has not been terminated */ /* boolean_t */ may_assign:1, /* can assigned pset be changed? */ - assign_active:1; /* waiting for may_assign */ + assign_active:1, /* waiting for may_assign */ + essential:1; /* Is this task essential for the system? */ /* Miscellaneous */ vm_map_t map; /* Address space description */ |