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; }