gpointer
ves_icall_System_Threading_StInternalMethods_RegisterHandle_internal (MonoObject *obj)
{
guint32 handle;
if (handles == NULL) {
MONO_GC_REGISTER_ROOT_FIXED (handles);
handles = mono_g_hash_table_new_type (NULL, NULL, MONO_HASH_VALUE_GC);
st_lock_init (&lock, SPIN_COUNT);
}
st_lock_enter (&lock);
handle = next_handle;
if (next_handle == (~0 - 1)) {
next_handle = 1;
} else {
next_handle += 1;
}
mono_g_hash_table_insert (handles, (gpointer)handle, (gpointer)obj);
st_lock_exit (&lock);
return (gpointer) handle;
}
void
mono_thread_pool_init ()
{
gint threads_per_cpu = 1;
gint thread_count;
gint cpu_count = mono_cpu_count ();
int result;
if (tp_inited == 2)
return;
result = InterlockedCompareExchange (&tp_inited, 1, 0);
if (result == 1) {
while (1) {
SleepEx (1, FALSE);
if (tp_inited == 2)
return;
}
}
MONO_GC_REGISTER_ROOT_FIXED (socket_io_data.sock_to_state);
InitializeCriticalSection (&socket_io_data.io_lock);
if (g_getenv ("MONO_THREADS_PER_CPU") != NULL) {
threads_per_cpu = atoi (g_getenv ("MONO_THREADS_PER_CPU"));
if (threads_per_cpu < 1)
threads_per_cpu = 1;
}
thread_count = MIN (cpu_count * threads_per_cpu, 100 * cpu_count);
threadpool_init (&async_tp, thread_count, MAX (100 * cpu_count, thread_count), async_invoke_thread);
threadpool_init (&async_io_tp, cpu_count * 2, cpu_count * 4, async_invoke_thread);
async_io_tp.is_io = TRUE;
async_call_klass = mono_class_from_name (mono_defaults.corlib, "System", "MonoAsyncCall");
g_assert (async_call_klass);
InitializeCriticalSection (&wsqs_lock);
wsqs = g_ptr_array_sized_new (MAX (100 * cpu_count, thread_count));
mono_wsq_init ();
#ifndef DISABLE_PERFCOUNTERS
async_tp.pc_nitems = init_perf_counter ("Mono Threadpool", "Work Items Added");
g_assert (async_tp.pc_nitems);
async_io_tp.pc_nitems = init_perf_counter ("Mono Threadpool", "IO Work Items Added");
g_assert (async_io_tp.pc_nitems);
async_tp.pc_nthreads = init_perf_counter ("Mono Threadpool", "# of Threads");
g_assert (async_tp.pc_nthreads);
async_io_tp.pc_nthreads = init_perf_counter ("Mono Threadpool", "# of IO Threads");
g_assert (async_io_tp.pc_nthreads);
#endif
tp_inited = 2;
#ifdef DEBUG
signal (SIGALRM, signal_handler);
alarm (2);
#endif
}
void
mono_gc_base_init (void)
{
MonoThreadInfoCallbacks cb;
const char *env;
int dummy;
if (gc_initialized)
return;
mono_counters_init ();
/*
* Handle the case when we are called from a thread different from the main thread,
* confusing libgc.
* FIXME: Move this to libgc where it belongs.
*
* we used to do this only when running on valgrind,
* but it happens also in other setups.
*/
#if defined(HAVE_PTHREAD_GETATTR_NP) && defined(HAVE_PTHREAD_ATTR_GETSTACK) && !defined(__native_client__)
{
size_t size;
void *sstart;
pthread_attr_t attr;
pthread_getattr_np (pthread_self (), &attr);
pthread_attr_getstack (&attr, &sstart, &size);
pthread_attr_destroy (&attr);
/*g_print ("stackbottom pth is: %p\n", (char*)sstart + size);*/
#ifdef __ia64__
/*
* The calculation above doesn't seem to work on ia64, also we need to set
* GC_register_stackbottom as well, but don't know how.
*/
#else
/* apparently with some linuxthreads implementations sstart can be NULL,
* fallback to the more imprecise method (bug# 78096).
*/
if (sstart) {
GC_stackbottom = (char*)sstart + size;
} else {
int dummy;
gsize stack_bottom = (gsize)&dummy;
stack_bottom += 4095;
stack_bottom &= ~4095;
GC_stackbottom = (char*)stack_bottom;
}
#endif
}
#elif defined(HAVE_PTHREAD_GET_STACKSIZE_NP) && defined(HAVE_PTHREAD_GET_STACKADDR_NP)
GC_stackbottom = (char*)pthread_get_stackaddr_np (pthread_self ());
#elif defined(__OpenBSD__)
# include <pthread_np.h>
{
stack_t ss;
int rslt;
rslt = pthread_stackseg_np(pthread_self(), &ss);
g_assert (rslt == 0);
GC_stackbottom = (char*)ss.ss_sp;
}
#elif defined(__native_client__)
/* Do nothing, GC_stackbottom is set correctly in libgc */
#else
{
int dummy;
gsize stack_bottom = (gsize)&dummy;
stack_bottom += 4095;
stack_bottom &= ~4095;
/*g_print ("stackbottom is: %p\n", (char*)stack_bottom);*/
GC_stackbottom = (char*)stack_bottom;
}
#endif
#if !defined(PLATFORM_ANDROID)
/* If GC_no_dls is set to true, GC_find_limit is not called. This causes a seg fault on Android. */
GC_no_dls = TRUE;
#endif
{
if ((env = g_getenv ("MONO_GC_DEBUG"))) {
char **opts = g_strsplit (env, ",", -1);
for (char **ptr = opts; ptr && *ptr; ptr ++) {
char *opt = *ptr;
if (!strcmp (opt, "do-not-finalize")) {
mono_do_not_finalize = 1;
} else if (!strcmp (opt, "log-finalizers")) {
log_finalizers = 1;
}
}
}
}
GC_init ();
GC_oom_fn = mono_gc_out_of_memory;
GC_set_warn_proc (mono_gc_warning);
GC_finalize_on_demand = 1;
GC_finalizer_notifier = mono_gc_finalize_notify;
GC_init_gcj_malloc (5, NULL);
if ((env = g_getenv ("MONO_GC_PARAMS"))) {
char **ptr, **opts = g_strsplit (env, ",", -1);
for (ptr = opts; *ptr; ++ptr) {
char *opt = *ptr;
if (g_str_has_prefix (opt, "max-heap-size=")) {
size_t max_heap;
opt = strchr (opt, '=') + 1;
if (*opt && mono_gc_parse_environment_string_extract_number (opt, &max_heap)) {
if (max_heap < MIN_BOEHM_MAX_HEAP_SIZE) {
fprintf (stderr, "max-heap-size must be at least %dMb.\n", MIN_BOEHM_MAX_HEAP_SIZE_IN_MB);
exit (1);
}
GC_set_max_heap_size (max_heap);
} else {
fprintf (stderr, "max-heap-size must be an integer.\n");
exit (1);
}
continue;
} else if (g_str_has_prefix (opt, "toggleref-test")) {
register_test_toggleref_callback ();
continue;
} else {
/* Could be a parameter for sgen */
/*
fprintf (stderr, "MONO_GC_PARAMS must be a comma-delimited list of one or more of the following:\n");
fprintf (stderr, " max-heap-size=N (where N is an integer, possibly with a k, m or a g suffix)\n");
exit (1);
*/
}
}
g_strfreev (opts);
}
memset (&cb, 0, sizeof (cb));
cb.thread_register = boehm_thread_register;
cb.thread_unregister = boehm_thread_unregister;
cb.mono_method_is_critical = (gpointer)mono_runtime_is_critical_method;
mono_threads_init (&cb, sizeof (MonoThreadInfo));
mono_mutex_init (&mono_gc_lock);
mono_mutex_init_recursive (&handle_section);
mono_thread_info_attach (&dummy);
mono_gc_enable_events ();
MONO_GC_REGISTER_ROOT_FIXED (gc_handles [HANDLE_NORMAL].entries, MONO_ROOT_SOURCE_GC_HANDLE, "gc handles table");
MONO_GC_REGISTER_ROOT_FIXED (gc_handles [HANDLE_PINNED].entries, MONO_ROOT_SOURCE_GC_HANDLE, "gc handles table");
gc_initialized = TRUE;
}
