#include <mono/utils/mono-semaphore.h>
#include <mono/utils/mono-threads.h>
#include <mono/utils/mono-tls.h>
+#include <mono/utils/mono-mmap.h>
#include <mono/metadata/threads-types.h>
+#include <limits.h>
#include <errno.h>
#endif
#if defined(_POSIX_VERSION) || defined(__native_client__)
+#include <sys/resource.h>
#include <signal.h>
+#if defined(__native_client__)
+void nacl_shutdown_gc_thread(void);
+#endif
+
typedef struct {
void *(*start_routine)(void*);
void *arg;
int flags;
MonoSemType registered;
-} ThreadStartInfo;
-
+ HANDLE handle;
+} StartInfo;
static void*
inner_start_thread (void *arg)
{
- ThreadStartInfo *start_info = arg;
+ StartInfo *start_info = arg;
void *t_arg = start_info->arg;
- int post_result;
+ int res;
void *(*start_func)(void*) = start_info->start_routine;
+ guint32 flags = start_info->flags;
void *result;
+ HANDLE handle;
+ MonoThreadInfo *info;
+
+ /* Register the thread with the io-layer */
+ handle = wapi_create_thread_handle ();
+ if (!handle) {
+ res = MONO_SEM_POST (&(start_info->registered));
+ g_assert (!res);
+ return NULL;
+ }
+ start_info->handle = handle;
- mono_thread_info_attach (&result)->runtime_thread = TRUE;
+ info = mono_thread_info_attach (&result);
+ info->runtime_thread = TRUE;
+ info->handle = handle;
- post_result = MONO_SEM_POST (&(start_info->registered));
- g_assert (!post_result);
+ if (flags & CREATE_SUSPENDED) {
+ info->create_suspended = TRUE;
+ MONO_SEM_INIT (&info->create_suspended_sem, 0);
+ }
+ /* start_info is not valid after this */
+ res = MONO_SEM_POST (&(start_info->registered));
+ g_assert (!res);
+ start_info = NULL;
+
+ if (flags & CREATE_SUSPENDED) {
+ while (MONO_SEM_WAIT (&info->create_suspended_sem) != 0 &&
+ errno == EINTR);
+ MONO_SEM_DESTROY (&info->create_suspended_sem);
+ }
+
+ /* Run the actual main function of the thread */
result = start_func (t_arg);
- g_assert (!mono_domain_get ());
- mono_thread_info_dettach ();
+ /*
+ mono_thread_info_detach ();
+ */
+
+#if defined(__native_client__)
+ nacl_shutdown_gc_thread();
+#endif
+ wapi_thread_handle_set_exited (handle, GPOINTER_TO_UINT (result));
+ /* This is needed by mono_threads_core_unregister () which is called later */
+ info->handle = NULL;
+
+ g_assert (mono_threads_get_callbacks ()->thread_exit);
+ mono_threads_get_callbacks ()->thread_exit (NULL);
+ g_assert_not_reached ();
return result;
}
-int
-mono_threads_pthread_create (pthread_t *new_thread, const pthread_attr_t *attr, void *(*start_routine)(void *), void *arg)
+HANDLE
+mono_threads_core_create_thread (LPTHREAD_START_ROUTINE start_routine, gpointer arg, guint32 stack_size, guint32 creation_flags, MonoNativeThreadId *out_tid)
{
- ThreadStartInfo *start_info;
- int result;
-
- start_info = g_malloc0 (sizeof (ThreadStartInfo));
- if (!start_info)
- return ENOMEM;
- MONO_SEM_INIT (&(start_info->registered), 0);
- start_info->arg = arg;
- start_info->start_routine = start_routine;
-
- result = mono_threads_get_callbacks ()->mono_gc_pthread_create (new_thread, attr, inner_start_thread, start_info);
- if (result == 0) {
- while (MONO_SEM_WAIT (&(start_info->registered)) != 0) {
- /*if (EINTR != errno) ABORT("sem_wait failed"); */
- }
+ pthread_attr_t attr;
+ int res;
+ pthread_t thread;
+ StartInfo start_info;
+
+ res = pthread_attr_init (&attr);
+ g_assert (!res);
+
+ 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
}
- MONO_SEM_DESTROY (&(start_info->registered));
- g_free (start_info);
- return result;
+
+#ifdef PTHREAD_STACK_MIN
+ if (stack_size < PTHREAD_STACK_MIN)
+ stack_size = PTHREAD_STACK_MIN;
+#endif
+
+#ifdef HAVE_PTHREAD_ATTR_SETSTACKSIZE
+ res = pthread_attr_setstacksize (&attr, stack_size);
+ g_assert (!res);
+#endif
+
+ memset (&start_info, 0, sizeof (StartInfo));
+ start_info.start_routine = (gpointer)start_routine;
+ start_info.arg = arg;
+ start_info.flags = creation_flags;
+ MONO_SEM_INIT (&(start_info.registered), 0);
+
+ /* Actually start the thread */
+ res = mono_threads_get_callbacks ()->mono_gc_pthread_create (&thread, &attr, inner_start_thread, &start_info);
+ if (res) {
+ MONO_SEM_DESTROY (&(start_info.registered));
+ return NULL;
+ }
+
+ /* Wait until the thread register itself in various places */
+ while (MONO_SEM_WAIT (&(start_info.registered)) != 0) {
+ /*if (EINTR != errno) ABORT("sem_wait failed"); */
+ }
+ MONO_SEM_DESTROY (&(start_info.registered));
+
+ if (out_tid)
+ *out_tid = thread;
+
+ return start_info.handle;
+}
+
+/*
+ * mono_threads_core_resume_created:
+ *
+ * Resume a newly created thread created using CREATE_SUSPENDED.
+ */
+void
+mono_threads_core_resume_created (MonoThreadInfo *info, MonoNativeThreadId tid)
+{
+ MONO_SEM_POST (&info->create_suspended_sem);
+}
+
+gboolean
+mono_threads_core_yield (void)
+{
+ return sched_yield () == 0;
+}
+
+void
+mono_threads_core_exit (int exit_code)
+{
+ MonoThreadInfo *current = mono_thread_info_current ();
+
+#if defined(__native_client__)
+ nacl_shutdown_gc_thread();
+#endif
+
+ wapi_thread_handle_set_exited (current->handle, exit_code);
+
+ g_assert (mono_threads_get_callbacks ()->thread_exit);
+ mono_threads_get_callbacks ()->thread_exit (NULL);
+}
+
+void
+mono_threads_core_unregister (MonoThreadInfo *info)
+{
+ if (info->handle) {
+ wapi_thread_handle_set_exited (info->handle, 0);
+ info->handle = NULL;
+ }
+}
+
+HANDLE
+mono_threads_core_open_handle (void)
+{
+ MonoThreadInfo *info;
+
+ info = mono_thread_info_current ();
+ g_assert (info);
+
+ if (!info->handle)
+ info->handle = wapi_create_thread_handle ();
+ else
+ wapi_ref_thread_handle (info->handle);
+ return info->handle;
+}
+
+int
+mono_threads_get_max_stack_size (void)
+{
+ struct rlimit lim;
+
+ /* If getrlimit fails, we don't enforce any limits. */
+ if (getrlimit (RLIMIT_STACK, &lim))
+ return INT_MAX;
+ /* rlim_t is an unsigned long long on 64bits OSX but we want an int response. */
+ if (lim.rlim_max > (rlim_t)INT_MAX)
+ return INT_MAX;
+ return (int)lim.rlim_max;
+}
+
+HANDLE
+mono_threads_core_open_thread_handle (HANDLE handle, MonoNativeThreadId tid)
+{
+ wapi_ref_thread_handle (handle);
+
+ return handle;
}
#if !defined (__MACH__)
return pthread_create (tid, NULL, func, arg) == 0;
}
+void
+mono_threads_core_set_name (MonoNativeThreadId tid, const char *name)
+{
+#ifdef HAVE_PTHREAD_SETNAME_NP
+ if (!name) {
+ pthread_setname_np (tid, "");
+ } else {
+ char n [16];
+
+ strncpy (n, name, 16);
+ n [15] = '\0';
+ pthread_setname_np (tid, n);
+ }
+#endif
+}
+
#endif /*!defined (__MACH__)*/
#endif
projects / mono.git / blobdiff