#include <config.h>
+#if defined(__OpenBSD__) || defined(__FreeBSD__)
+#include <pthread.h>
+#include <pthread_np.h>
+#endif
+
#include <mono/utils/mono-compiler.h>
#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 <errno.h>
extern int tkill (pid_t tid, int signal);
#endif
+#if defined(PLATFORM_MACOSX) && defined(HAVE_PTHREAD_GET_STACKADDR_NP)
+void *pthread_get_stackaddr_np(pthread_t);
+size_t pthread_get_stacksize_np(pthread_t);
+#endif
+
#if defined(_POSIX_VERSION) || defined(__native_client__)
#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;
+
+ info = mono_thread_info_attach (&result);
+ info->runtime_thread = TRUE;
+ info->handle = handle;
+
+ if (flags & CREATE_SUSPENDED) {
+ info->create_suspended = TRUE;
+ MONO_SEM_INIT (&info->create_suspended_sem, 0);
+ }
- mono_thread_info_attach (&result)->runtime_thread = TRUE;
+ /* start_info is not valid after this */
+ res = MONO_SEM_POST (&(start_info->registered));
+ g_assert (!res);
+ start_info = NULL;
- post_result = MONO_SEM_POST (&(start_info->registered));
- g_assert (!post_result);
+ 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) {
+ // FIXME:
+ g_assert_not_reached ();
+ }
+
+ /* 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);
+}
+
+void
+mono_threads_core_get_stack_bounds (guint8 **staddr, size_t *stsize)
+{
+#if defined(HAVE_PTHREAD_GET_STACKSIZE_NP) && defined(HAVE_PTHREAD_GET_STACKADDR_NP)
+ /* Mac OS X */
+ *staddr = (guint8*)pthread_get_stackaddr_np (pthread_self());
+ *stsize = pthread_get_stacksize_np (pthread_self());
+
+
+#ifdef TARGET_OSX
+ /*
+ * Mavericks reports stack sizes as 512kb:
+ * http://permalink.gmane.org/gmane.comp.java.openjdk.hotspot.devel/11590
+ * https://bugs.openjdk.java.net/browse/JDK-8020753
+ */
+ if (*stsize == 512 * 1024)
+ *stsize = 2048 * mono_pagesize ();
+#endif
+
+ /* staddr points to the start of the stack, not the end */
+ *staddr -= *stsize;
+
+ /* When running under emacs, sometimes staddr is not aligned to a page size */
+ *staddr = (guint8*)((gssize)*staddr & ~(mono_pagesize() - 1));
+ return;
+
+#elif (defined(HAVE_PTHREAD_GETATTR_NP) || defined(HAVE_PTHREAD_ATTR_GET_NP)) && defined(HAVE_PTHREAD_ATTR_GETSTACK)
+ /* Linux, BSD */
+
+ pthread_attr_t attr;
+ guint8 *current = (guint8*)&attr;
+
+ *staddr = NULL;
+ *stsize = (size_t)-1;
+
+ pthread_attr_init (&attr);
+
+#if defined(HAVE_PTHREAD_GETATTR_NP)
+ /* Linux */
+ pthread_getattr_np (pthread_self(), &attr);
+
+#elif defined(HAVE_PTHREAD_ATTR_GET_NP)
+ /* BSD */
+ pthread_attr_get_np (pthread_self(), &attr);
+
+#else
+#error Cannot determine which API is needed to retrieve pthread attributes.
+#endif
+
+ pthread_attr_getstack (&attr, (void**)staddr, stsize);
+ pthread_attr_destroy (&attr);
+
+ if (*staddr)
+ g_assert ((current > *staddr) && (current < *staddr + *stsize));
+
+ /* When running under emacs, sometimes staddr is not aligned to a page size */
+ *staddr = (guint8*)((gssize)*staddr & ~(mono_pagesize () - 1));
+ return;
+
+#elif defined(__OpenBSD__)
+ /* OpenBSD */
+ /* TODO : Determine if this code is actually still needed. It may already be covered by the case above. */
+
+ pthread_attr_t attr;
+ guint8 *current = (guint8*)&attr;
+
+ *staddr = NULL;
+ *stsize = (size_t)-1;
+
+ pthread_attr_init (&attr);
+
+ stack_t ss;
+ int rslt;
+
+ rslt = pthread_stackseg_np(pthread_self(), &ss);
+ g_assert (rslt == 0);
+
+ *staddr = (guint8*)((size_t)ss.ss_sp - ss.ss_size);
+ *stsize = ss.ss_size;
+
+ pthread_attr_destroy (&attr);
+
+ if (*staddr)
+ g_assert ((current > *staddr) && (current < *staddr + *stsize));
+
+ /* When running under emacs, sometimes staddr is not aligned to a page size */
+ *staddr = (guint8*)((gssize)*staddr & ~(mono_pagesize () - 1));
+ return;
+
+#elif defined(sun) || defined(__native_client__)
+ /* Solaris/Illumos, NaCl */
+ pthread_attr_t attr;
+ pthread_attr_init (&attr);
+ pthread_attr_getstacksize (&attr, &stsize);
+ pthread_attr_destroy (&attr);
+ *staddr = NULL;
+ return;
+
+#else
+ /* FIXME: It'd be better to use the 'error' preprocessor macro here so we know
+ at compile-time if the target platform isn't supported. */
+#warning "Unable to determine how to retrieve a thread's stack-bounds for this platform in 'mono_thread_get_stack_bounds()'."
+ *staddr = NULL;
+ *stsize = 0;
+ return;
+#endif
+}
+
+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;
}
#if !defined (__MACH__)
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