#endif
#include <mono/utils/mono-threads.h>
-#include <mono/utils/mono-threads-posix-signals.h>
#include <mono/utils/mono-coop-semaphore.h>
#include <mono/metadata/gc-internals.h>
-#include <mono/utils/w32handle.h>
+#include <mono/utils/mono-threads-debug.h>
#include <errno.h>
#include <sys/resource.h>
-#if defined(__native_client__)
-void nacl_shutdown_gc_thread(void);
-#endif
-
-void
-mono_threads_platform_register (MonoThreadInfo *info)
-{
- gpointer thread_handle;
-
- thread_handle = mono_w32handle_new (MONO_W32HANDLE_THREAD, NULL);
- if (thread_handle == INVALID_HANDLE_VALUE)
- g_error ("%s: failed to create handle", __func__);
-
- g_assert (!info->handle);
- info->handle = thread_handle;
-}
-
-int
-mono_threads_platform_create_thread (MonoThreadStart thread_fn, gpointer thread_data, gsize stack_size, MonoNativeThreadId *out_tid)
+static void
+reset_priority (pthread_attr_t *attr)
{
- pthread_attr_t attr;
- pthread_t thread;
- int policy;
struct sched_param param;
gint res;
-
- res = pthread_attr_init (&attr);
- g_assert (!res);
-
-#ifdef HAVE_PTHREAD_ATTR_SETSTACKSIZE
- if (stack_size == 0) {
-#if HAVE_VALGRIND_MEMCHECK_H
- if (RUNNING_ON_VALGRIND)
- stack_size = 1 << 20;
- else
- stack_size = (SIZEOF_VOID_P / 4) * 1024 * 1024;
-#else
- stack_size = (SIZEOF_VOID_P / 4) * 1024 * 1024;
-#endif
- }
-
-#ifdef PTHREAD_STACK_MIN
- if (stack_size < PTHREAD_STACK_MIN)
- stack_size = PTHREAD_STACK_MIN;
-#endif
-
- res = pthread_attr_setstacksize (&attr, stack_size);
- g_assert (!res);
-#endif /* HAVE_PTHREAD_ATTR_SETSTACKSIZE */
+ gint policy;
memset (¶m, 0, sizeof (param));
- res = pthread_attr_getschedpolicy (&attr, &policy);
+ res = pthread_attr_getschedpolicy (attr, &policy);
if (res != 0)
- g_error ("%s: pthread_attr_getschedpolicy failed, error: \"%s\" (%d)", g_strerror (res), res);
+ g_error ("%s: pthread_attr_getschedpolicy failed, error: \"%s\" (%d)", __func__, g_strerror (res), res);
#ifdef _POSIX_PRIORITY_SCHEDULING
- int max, min;
+ gint max, min;
/* Necessary to get valid priority range */
param.sched_priority = 0;
break;
default:
- g_error ("%s: unknown policy %d", __func__, policy);
+ g_warning ("%s: unknown policy %d", __func__, policy);
+ return;
}
}
- res = pthread_attr_setschedparam (&attr, ¶m);
+ res = pthread_attr_setschedparam (attr, ¶m);
if (res != 0)
- g_error ("%s: pthread_attr_setschedparam failed, error: \"%s\" (%d)", g_strerror (res), res);
+ g_error ("%s: pthread_attr_setschedparam failed, error: \"%s\" (%d)", __func__, g_strerror (res), res);
+}
+
+int
+mono_threads_platform_create_thread (MonoThreadStart thread_fn, gpointer thread_data, gsize* const stack_size, MonoNativeThreadId *out_tid)
+{
+ pthread_attr_t attr;
+ pthread_t thread;
+ gint res;
+ gsize set_stack_size;
+ gsize min_stack_size;
+
+ res = pthread_attr_init (&attr);
+ g_assert (!res);
+
+ if (stack_size)
+ set_stack_size = *stack_size;
+ else
+ set_stack_size = 0;
+
+#ifdef HAVE_PTHREAD_ATTR_SETSTACKSIZE
+ if (set_stack_size == 0) {
+#if HAVE_VALGRIND_MEMCHECK_H
+ if (RUNNING_ON_VALGRIND)
+ set_stack_size = 1 << 20;
+ else
+ set_stack_size = (SIZEOF_VOID_P / 4) * 1024 * 1024;
+#else
+ set_stack_size = (SIZEOF_VOID_P / 4) * 1024 * 1024;
+#endif
+ }
+
+#ifdef PTHREAD_STACK_MIN
+ if (set_stack_size < PTHREAD_STACK_MIN)
+ set_stack_size = PTHREAD_STACK_MIN;
+#endif
+
+ res = pthread_attr_setstacksize (&attr, set_stack_size);
+ g_assert (!res);
+#endif /* HAVE_PTHREAD_ATTR_SETSTACKSIZE */
+
+ reset_priority (&attr);
+
+ if (stack_size) {
+ res = pthread_attr_getstacksize (&attr, &min_stack_size);
+ if (res != 0)
+ g_error ("%s: pthread_attr_getstacksize failed, error: \"%s\" (%d)", g_strerror (res), res);
+
+ *stack_size = min_stack_size;
+ }
/* Actually start the thread */
res = mono_gc_pthread_create (&thread, &attr, (gpointer (*)(gpointer)) thread_fn, thread_data);
return 0;
}
-gboolean
-mono_threads_platform_yield (void)
+void
+mono_threads_platform_init (void)
{
- return sched_yield () == 0;
}
-void
-mono_threads_platform_exit (int exit_code)
+gboolean
+mono_threads_platform_in_critical_region (MonoNativeThreadId tid)
{
-#if defined(__native_client__)
- nacl_shutdown_gc_thread();
-#endif
-
- mono_thread_info_detach ();
+ return FALSE;
+}
- pthread_exit (NULL);
+gboolean
+mono_threads_platform_yield (void)
+{
+ return sched_yield () == 0;
}
void
-mono_threads_platform_unregister (MonoThreadInfo *info)
+mono_threads_platform_exit (gsize exit_code)
{
- g_assert (info->handle);
-
- /* The thread is no longer active, so unref it */
- mono_w32handle_unref (info->handle);
- info->handle = NULL;
+ pthread_exit ((gpointer) exit_code);
}
int
return (int)lim.rlim_max;
}
-gpointer
-mono_threads_platform_duplicate_handle (MonoThreadInfo *info)
-{
- g_assert (info->handle);
- mono_w32handle_ref (info->handle);
- return info->handle;
-}
-
-HANDLE
-mono_threads_platform_open_thread_handle (HANDLE handle, MonoNativeThreadId tid)
-{
- mono_w32handle_ref (handle);
-
- return handle;
-}
-
-void
-mono_threads_platform_close_thread_handle (HANDLE handle)
-{
- mono_w32handle_unref (handle);
-}
-
int
mono_threads_pthread_kill (MonoThreadInfo *info, int signum)
{
return !pthread_join (tid, &res);
}
-void
-mono_threads_platform_set_exited (gpointer handle)
-{
- int thr_ret;
-
- g_assert (handle);
- if (mono_w32handle_issignalled (handle))
- g_error ("%s: handle %p thread %p has already exited, it's handle is signalled", __func__, handle, mono_native_thread_id_get ());
- if (mono_w32handle_get_type (handle) == MONO_W32HANDLE_UNUSED)
- g_error ("%s: handle %p thread %p has already exited, it's handle type is 'unused'", __func__, handle, mono_native_thread_id_get ());
-
- thr_ret = mono_w32handle_lock_handle (handle);
- g_assert (thr_ret == 0);
-
- mono_w32handle_set_signal_state (handle, TRUE, TRUE);
-
- thr_ret = mono_w32handle_unlock_handle (handle);
- g_assert (thr_ret == 0);
-}
-
-static const gchar* thread_typename (void)
-{
- return "Thread";
-}
-
-static gsize thread_typesize (void)
-{
- return 0;
-}
-
-static MonoW32HandleOps thread_ops = {
- NULL, /* close */
- NULL, /* signal */
- NULL, /* own */
- NULL, /* is_owned */
- NULL, /* special_wait */
- NULL, /* prewait */
- NULL, /* details */
- thread_typename, /* typename */
- thread_typesize, /* typesize */
-};
-
-void
-mono_threads_platform_init (void)
-{
- mono_w32handle_register_ops (MONO_W32HANDLE_THREAD, &thread_ops);
-
- mono_w32handle_register_capabilities (MONO_W32HANDLE_THREAD, MONO_W32HANDLE_CAP_WAIT);
-}
-
#endif /* defined(_POSIX_VERSION) || defined(__native_client__) */
#if defined(USE_POSIX_BACKEND)
gboolean
mono_threads_suspend_begin_async_suspend (MonoThreadInfo *info, gboolean interrupt_kernel)
{
- int sig = interrupt_kernel ? mono_threads_posix_get_abort_signal () : mono_threads_posix_get_suspend_signal ();
+ int sig = interrupt_kernel ? mono_threads_suspend_get_abort_signal () : mono_threads_suspend_get_suspend_signal ();
if (!mono_threads_pthread_kill (info, sig)) {
mono_threads_add_to_pending_operation_set (info);
gboolean
mono_threads_suspend_begin_async_resume (MonoThreadInfo *info)
{
- mono_threads_add_to_pending_operation_set (info);
- return mono_threads_pthread_kill (info, mono_threads_posix_get_restart_signal ()) == 0;
+ int sig = mono_threads_suspend_get_restart_signal ();
+
+ if (!mono_threads_pthread_kill (info, sig)) {
+ mono_threads_add_to_pending_operation_set (info);
+ return TRUE;
+ }
+ return FALSE;
+}
+
+void
+mono_threads_suspend_abort_syscall (MonoThreadInfo *info)
+{
+ /* We signal a thread to break it from the current syscall.
+ * This signal should not be interpreted as a suspend request. */
+ info->syscall_break_signal = TRUE;
+ if (mono_threads_pthread_kill (info, mono_threads_suspend_get_abort_signal ()) == 0) {
+ mono_threads_add_to_pending_operation_set (info);
+ }
+}
+
+gboolean
+mono_threads_suspend_needs_abort_syscall (void)
+{
+ return TRUE;
}
void
void
mono_threads_suspend_init (void)
{
- mono_threads_posix_init_signals (MONO_THREADS_POSIX_INIT_SIGNALS_SUSPEND_RESTART);
}
#endif /* defined(USE_POSIX_BACKEND) */
projects / mono.git / blobdiff