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rename_thread() was broken for the current thread: updating the name is

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hardly atomic, so we need to grab the thread lock after all.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@12877 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
2005-05-29 00:29:45 +00:00
parent 56c6492868
commit 9620c1d716
1 changed files with 12 additions and 16 deletions
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src/system/kernel/thread.c
+12 -16
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@@ -1615,31 +1615,27 @@ find_thread(const char *name)
status_t status_t
rename_thread(thread_id id, const char *name) rename_thread(thread_id id, const char *name)
{ {
status_t status = B_OK; struct thread *thread = thread_get_current_thread();
struct thread *thread; status_t status = B_BAD_THREAD_ID;
cpu_status state;
if (name == NULL) if (name == NULL)
return B_BAD_VALUE; return B_BAD_VALUE;
thread = thread_get_current_thread(); state = disable_interrupts();
if (thread->id == id) { GRAB_THREAD_LOCK();
// it's ourself, so we know we aren't in the run queue, and we can manipulate
// our structure directly
strlcpy(thread->name, name, B_OS_NAME_LENGTH);
} else {
cpu_status state = disable_interrupts();
GRAB_THREAD_LOCK();
if (thread->id != id)
thread = thread_get_thread_struct_locked(id); thread = thread_get_thread_struct_locked(id);
if (thread) {
strlcpy(thread->name, name, B_OS_NAME_LENGTH);
} else
status = B_BAD_THREAD_ID;
RELEASE_THREAD_LOCK(); if (thread != NULL) {
restore_interrupts(state); strlcpy(thread->name, name, B_OS_NAME_LENGTH);
status = B_OK;
} }
RELEASE_THREAD_LOCK();
restore_interrupts(state);
return status; return status;
} }