From df47f83ed98e4ce356af8d34de05b549f4f9c912 Mon Sep 17 00:00:00 2001 From: Justus Winter <4winter@informatik.uni-hamburg.de> Date: Sat, 1 Feb 2014 02:15:05 +0100 Subject: kern: add a name field to struct task * kern/task.c (task_create): Initialize name with the address of the task. * kern/task.h (TASK_NAME_SIZE): New definition. (struct task): Add field name. --- kern/task.h | 9 +++++++++ 1 file changed, 9 insertions(+) (limited to 'kern/task.h') diff --git a/kern/task.h b/kern/task.h index e852033..7ae10cd 100644 --- a/kern/task.h +++ b/kern/task.h @@ -48,6 +48,13 @@ #include #include +/* + * Task name buffer size. The size is chosen so that struct task fits + * into three cache lines. The size of a cache line on a typical CPU + * is 64 bytes. + */ +#define TASK_NAME_SIZE 32 + struct task { /* Synchronization/destruction information */ decl_simple_lock_data(,lock) /* Task's lock */ @@ -113,6 +120,8 @@ struct task { natural_t cow_faults; /* copy-on-write faults counter */ natural_t messages_sent; /* messages sent counter */ natural_t messages_received; /* messages received counter */ + + char name[TASK_NAME_SIZE]; }; #define task_lock(task) simple_lock(&(task)->lock) -- cgit v1.2.3