void
mono_threads_init (MonoThreadInfoCallbacks *callbacks, size_t info_size)
{
gboolean res;
threads_callbacks = *callbacks;
thread_info_size = info_size;
const char *sleepLimit;
#ifdef HOST_WIN32
res = mono_native_tls_alloc (&thread_info_key, NULL);
res = mono_native_tls_alloc (&thread_exited_key, NULL);
#else
res = mono_native_tls_alloc (&thread_info_key, (void *) thread_info_key_dtor);
res = mono_native_tls_alloc (&thread_exited_key, (void *) thread_exited_dtor);
#endif
g_assert (res);
#ifndef HAVE_KW_THREAD
res = mono_native_tls_alloc (&small_id_key, NULL);
#endif
g_assert (res);
unified_suspend_enabled = g_getenv ("MONO_ENABLE_UNIFIED_SUSPEND") != NULL || mono_threads_is_coop_enabled ();
if ((sleepLimit = g_getenv ("MONO_SLEEP_ABORT_LIMIT")) != NULL) {
errno = 0;
long threshold = strtol(sleepLimit, NULL, 10);
if ((errno == 0) && (threshold >= 40)) {
sleepAbortDuration = threshold;
sleepWarnDuration = threshold / 20;
} else
g_warning("MONO_SLEEP_ABORT_LIMIT must be a number >= 40");
}
mono_os_sem_init (&global_suspend_semaphore, 1);
mono_os_sem_init (&suspend_semaphore, 0);
mono_lls_init (&thread_list, NULL, HAZARD_FREE_NO_LOCK);
mono_thread_smr_init ();
mono_threads_platform_init ();
mono_threads_suspend_init ();
mono_threads_coop_init ();
mono_threads_abort_syscall_init ();
#if defined(__MACH__)
mono_mach_init (thread_info_key);
#endif
mono_threads_inited = TRUE;
g_assert (sizeof (MonoNativeThreadId) <= sizeof (uintptr_t));
}
static void*
register_thread (MonoThreadInfo *info, gpointer baseptr)
{
size_t stsize = 0;
guint8 *staddr = NULL;
int small_id = mono_thread_info_register_small_id ();
gboolean result;
mono_thread_info_set_tid (info, mono_native_thread_id_get ());
info->small_id = small_id;
info->handle = g_new0 (MonoThreadHandle, 1);
mono_refcount_init (info->handle, thread_handle_destroy);
mono_os_event_init (&info->handle->event, FALSE);
mono_os_sem_init (&info->resume_semaphore, 0);
/*set TLS early so SMR works */
mono_native_tls_set_value (thread_info_key, info);
THREADS_DEBUG ("registering info %p tid %p small id %x\n", info, mono_thread_info_get_tid (info), info->small_id);
if (threads_callbacks.thread_register) {
if (threads_callbacks.thread_register (info, baseptr) == NULL) {
// g_warning ("thread registation failed\n");
mono_native_tls_set_value (thread_info_key, NULL);
g_free (info);
return NULL;
}
}
mono_thread_info_get_stack_bounds (&staddr, &stsize);
g_assert (staddr);
g_assert (stsize);
info->stack_start_limit = staddr;
info->stack_end = staddr + stsize;
info->stackdata = g_byte_array_new ();
mono_threads_suspend_register (info);
/*
Transition it before taking any locks or publishing itself to reduce the chance
of others witnessing a detached thread.
We can reasonably expect that until this thread gets published, no other thread will
try to manipulate it.
*/
mono_threads_transition_attach (info);
mono_thread_info_suspend_lock ();
/*If this fail it means a given thread has been registered twice, which doesn't make sense. */
result = mono_thread_info_insert (info);
g_assert (result);
mono_thread_info_suspend_unlock ();
return info;
}
void
mono_threads_init (MonoThreadInfoCallbacks *callbacks, size_t info_size)
{
gboolean res;
threads_callbacks = *callbacks;
thread_info_size = info_size;
#ifdef HOST_WIN32
res = mono_native_tls_alloc (&thread_info_key, NULL);
res = mono_native_tls_alloc (&thread_exited_key, NULL);
#else
res = mono_native_tls_alloc (&thread_info_key, (void *) unregister_thread);
res = mono_native_tls_alloc (&thread_exited_key, (void *) thread_exited_dtor);
#endif
g_assert (res);
#ifndef HAVE_KW_THREAD
res = mono_native_tls_alloc (&small_id_key, NULL);
#endif
g_assert (res);
unified_suspend_enabled = g_getenv ("MONO_ENABLE_UNIFIED_SUSPEND") != NULL || mono_threads_is_coop_enabled ();
mono_coop_sem_init (&global_suspend_semaphore, 1);
mono_os_sem_init (&suspend_semaphore, 0);
mono_lls_init (&thread_list, NULL);
mono_thread_smr_init ();
mono_threads_init_platform ();
mono_threads_init_coop ();
mono_threads_init_abort_syscall ();
#if defined(__MACH__)
mono_mach_init (thread_info_key);
#endif
mono_threads_inited = TRUE;
g_assert (sizeof (MonoNativeThreadId) <= sizeof (uintptr_t));
}