static void
unregister_thread (void *arg)
{
MonoThreadInfo *info = (MonoThreadInfo *) arg;
int small_id = info->small_id;
g_assert (info);
THREADS_DEBUG ("unregistering info %p\n", info);
mono_native_tls_set_value (thread_exited_key, GUINT_TO_POINTER (1));
mono_threads_core_unregister (info);
/*
* TLS destruction order is not reliable so small_id might be cleaned up
* before us.
*/
#ifndef HAVE_KW_THREAD
mono_native_tls_set_value (small_id_key, GUINT_TO_POINTER (info->small_id + 1));
#endif
/*
First perform the callback that requires no locks.
This callback has the potential of taking other locks, so we do it before.
After it completes, the thread remains functional.
*/
if (threads_callbacks.thread_detach)
threads_callbacks.thread_detach (info);
/*
Since the thread info lock is taken from within blocking sections, we can't check from there, so it must be done here.
This ensures that we won't lose any suspend requests as a suspend initiator must hold the lock.
Once we're holding the suspend lock, no threads can suspend us and once we unregister, no thread can find us.
*/
MONO_PREPARE_BLOCKING
mono_thread_info_suspend_lock ();
MONO_FINISH_BLOCKING
/*
Now perform the callback that must be done under locks.
This will render the thread useless and non-suspendable, so it must
be done while holding the suspend lock to give no other thread chance
to suspend it.
*/
if (threads_callbacks.thread_unregister)
threads_callbacks.thread_unregister (info);
mono_threads_unregister_current_thread (info);
mono_threads_transition_detach (info);
mono_thread_info_suspend_unlock ();
/*now it's safe to free the thread info.*/
mono_thread_hazardous_free_or_queue (info, free_thread_info, TRUE, FALSE);
mono_thread_small_id_free (small_id);
}
static void
unregister_thread (void *arg)
{
MonoThreadInfo *info = (MonoThreadInfo *) arg;
int small_id = info->small_id;
g_assert (info);
THREADS_DEBUG ("unregistering info %p\n", info);
mono_native_tls_set_value (thread_exited_key, GUINT_TO_POINTER (1));
mono_threads_core_unregister (info);
/*
* TLS destruction order is not reliable so small_id might be cleaned up
* before us.
*/
#ifndef HAVE_KW_THREAD
mono_native_tls_set_value (small_id_key, GUINT_TO_POINTER (info->small_id + 1));
#endif
/*
First perform the callback that requires no locks.
This callback has the potential of taking other locks, so we do it before.
After it completes, the thread remains functional.
*/
if (threads_callbacks.thread_detach)
threads_callbacks.thread_detach (info);
mono_thread_info_suspend_lock ();
/*
Now perform the callback that must be done under locks.
This will render the thread useless and non-suspendable, so it must
be done while holding the suspend lock to give no other thread chance
to suspend it.
*/
if (threads_callbacks.thread_unregister)
threads_callbacks.thread_unregister (info);
mono_threads_unregister_current_thread (info);
mono_threads_transition_detach (info);
mono_thread_info_suspend_unlock ();
g_byte_array_free (info->stackdata, /*free_segment=*/TRUE);
/*now it's safe to free the thread info.*/
mono_thread_hazardous_free_or_queue (info, free_thread_info, TRUE, FALSE);
mono_thread_small_id_free (small_id);
}
static void
unregister_thread (void *arg)
{
gpointer gc_unsafe_stackdata;
MonoThreadInfo *info;
int small_id;
info = (MonoThreadInfo *) arg;
g_assert (info);
g_assert (mono_thread_info_is_current (info));
g_assert (mono_thread_info_is_live (info));
small_id = info->small_id;
/* We only enter the GC unsafe region, as when exiting this function, the thread
* will be detached, and the current MonoThreadInfo* will be destroyed. */
mono_threads_enter_gc_unsafe_region_unbalanced_with_info (info, &gc_unsafe_stackdata);
THREADS_DEBUG ("unregistering info %p\n", info);
mono_native_tls_set_value (thread_exited_key, GUINT_TO_POINTER (1));
mono_threads_platform_unregister (info);
/*
* TLS destruction order is not reliable so small_id might be cleaned up
* before us.
*/
#ifndef HAVE_KW_THREAD
mono_native_tls_set_value (small_id_key, GUINT_TO_POINTER (info->small_id + 1));
#endif
/*
First perform the callback that requires no locks.
This callback has the potential of taking other locks, so we do it before.
After it completes, the thread remains functional.
*/
if (threads_callbacks.thread_detach)
threads_callbacks.thread_detach (info);
mono_thread_info_suspend_lock_with_info (info);
/*
Now perform the callback that must be done under locks.
This will render the thread useless and non-suspendable, so it must
be done while holding the suspend lock to give no other thread chance
to suspend it.
*/
if (threads_callbacks.thread_unregister)
threads_callbacks.thread_unregister (info);
mono_threads_unregister_current_thread (info);
mono_threads_transition_detach (info);
mono_thread_info_suspend_unlock ();
g_byte_array_free (info->stackdata, /*free_segment=*/TRUE);
/*now it's safe to free the thread info.*/
mono_thread_hazardous_try_free (info, free_thread_info);
/* Pump the HP queue */
mono_thread_hazardous_try_free_some ();
mono_thread_small_id_free (small_id);
}