diff options
Diffstat (limited to 'nuttx/sched/os_internal.h')
| -rw-r--r-- | nuttx/sched/os_internal.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/nuttx/sched/os_internal.h b/nuttx/sched/os_internal.h index 13b8083cf..32d9fb4ac 100644 --- a/nuttx/sched/os_internal.h +++ b/nuttx/sched/os_internal.h @@ -83,10 +83,10 @@ enum os_crash_codes_e OSERR_BADREPRIORITIZESTATE /* Attempt to reprioritize in bad state or priority */ }; -/* Special task IDS */ +/* Special task IDS. Any negative PID is invalid. */ -#define NULL_TASK_PROCESS_ID 0 -#define INVALID_PROCESS_ID 0 +#define NULL_TASK_PROCESS_ID (pid_t)0 +#define INVALID_PROCESS_ID (pid_t)-1 /* Although task IDs can take the (positive, non-zero) * range of pid_t, the number of tasks that will be supported |