Module: xenomai-forge
Branch: master
Commit: da5064b91f62eb2a8c2f4ff92e650d73f2b846c9
URL:
http://git.xenomai.org/?p=xenomai-forge.git;a=commit;h=da5064b91f62eb2a8c2f4ff92e650d73f2b846c9
Author: Philippe Gerum <r...@xenomai.org>
Date: Tue Jan 15 17:41:08 2013 +0100
cobalt: iron pthread_set_name_np()
---
kernel/cobalt/thread.c | 51 ++++++++++++-----------------------------------
1 files changed, 13 insertions(+), 38 deletions(-)
diff --git a/kernel/cobalt/thread.c b/kernel/cobalt/thread.c
index 278d1a1..aca33bc 100644
--- a/kernel/cobalt/thread.c
+++ b/kernel/cobalt/thread.c
@@ -595,42 +595,6 @@ static inline int pthread_set_mode_np(int clrmask, int
setmask, int *mode_r)
}
/**
- * Set a thread name.
- *
- * This service set to @a name, the name of @a thread. This name is used for
- * displaying information in /proc/xenomai/sched.
- *
- * This service is a non-portable extension of the POSIX interface.
- *
- * @param thread target thread;
- *
- * @param name name of the thread.
- *
- * @return 0 on success;
- * @return an error number if:
- * - ESRCH, @a thread is invalid.
- *
- */
-static inline int pthread_set_name_np(pthread_t thread, const char *name)
-{
- spl_t s;
-
- xnlock_get_irqsave(&nklock, s);
-
- if (!cobalt_obj_active(thread, COBALT_THREAD_MAGIC, struct
cobalt_thread)) {
- xnlock_put_irqrestore(&nklock, s);
- return -ESRCH;
- }
-
- snprintf(xnthread_name(&thread->threadbase),
- XNOBJECT_NAME_LEN, "%s", name);
-
- xnlock_put_irqrestore(&nklock, s);
-
- return 0;
-}
-
-/**
* Set the scheduling policy and parameters of the specified thread.
*
* This service set the scheduling policy of the Xenomai POSIX skin thread @a
@@ -1097,22 +1061,33 @@ int cobalt_thread_set_name_np(unsigned long tid, const
char __user *u_name)
struct cobalt_hkey hkey;
struct task_struct *p;
pthread_t k_tid;
+ spl_t s;
if (__xn_safe_strncpy_from_user(name, u_name,
sizeof(name) - 1) < 0)
return -EFAULT;
name[sizeof(name) - 1] = '\0';
-
hkey.u_tid = tid;
hkey.mm = current->mm;
+
+ xnlock_get_irqsave(&nklock, s);
k_tid = cobalt_thread_find(&hkey);
+ if (k_tid == NULL) {
+ xnlock_put_irqrestore(&nklock, s);
+ return -ESRCH;
+ }
p = xnthread_host_task(&k_tid->threadbase);
+ get_task_struct(p);
+ xnlock_put_irqrestore(&nklock, s);
strncpy(p->comm, name, sizeof(p->comm));
p->comm[sizeof(p->comm) - 1] = '\0';
+ snprintf(xnthread_name(&k_tid->threadbase),
+ XNOBJECT_NAME_LEN - 1, "%s", name);
+ put_task_struct(p);
- return pthread_set_name_np(k_tid, name);
+ return 0;
}
int cobalt_thread_probe_np(pid_t h_tid)
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