Module: xenomai-head
Branch: master
Commit: 42b26f530ed074dd6fe17e0bedf4171788d00b58
URL:
http://git.xenomai.org/?p=xenomai-head.git;a=commit;h=42b26f530ed074dd6fe17e0bedf4171788d00b58
Author: Philippe Gerum <r...@xenomai.org>
Date: Thu Jul 23 19:33:02 2009 +0200
nucleus: introduce unique id tags for threads
A unique non-zero numeric tag is assigned each time a TCB is
initialized, at the notable exception of the per-CPU root thread TCBs,
which all share a zero tag value.
---
include/nucleus/thread.h | 3 +++
ksrc/nucleus/thread.c | 7 +++++++
2 files changed, 10 insertions(+), 0 deletions(-)
diff --git a/include/nucleus/thread.h b/include/nucleus/thread.h
index fbd7fec..0372557 100644
--- a/include/nucleus/thread.h
+++ b/include/nucleus/thread.h
@@ -169,6 +169,7 @@ struct xnsched;
struct xnsched_class;
struct xnsched_tpslot;
union xnsched_policy_param;
+struct xnbufd;
struct xnthread_operations {
int (*get_denormalized_prio)(struct xnthread *, int coreprio);
@@ -215,6 +216,8 @@ typedef struct xnthread {
struct xnsched_sporadic_data *pss; /* Sporadic scheduling data. */
#endif
+ unsigned idtag; /* Unique ID tag */
+
xnarch_cpumask_t affinity; /* Processor affinity. */
int bprio; /* Base priority (before PIP boost) */
diff --git a/ksrc/nucleus/thread.c b/ksrc/nucleus/thread.c
index c8c05cc..68db965 100644
--- a/ksrc/nucleus/thread.c
+++ b/ksrc/nucleus/thread.c
@@ -24,6 +24,8 @@
#include <nucleus/module.h>
#include <asm/xenomai/bits/thread.h>
+static unsigned idtags;
+
static void xnthread_timeout_handler(xntimer_t *timer)
{
xnthread_t *thread = container_of(timer, xnthread_t, rtimer);
@@ -71,6 +73,11 @@ int xnthread_init(struct xnthread *thread,
stacksize &= ~(sizeof(long) - 1);
}
+ if (flags & XNROOT)
+ thread->idtag = 0;
+ else
+ thread->idtag = ++idtags ?: 1;
+
#if CONFIG_XENO_OPT_SYS_STACKPOOLSZ == 0
#ifndef __XENO_SIM__
if (stacksize > 0) {
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