*
* Author:
* Dick Porter (dick@ximian.com)
+ * Paolo Molaro (lupus@ximian.com)
* Patrik Torstensson (patrik.torstensson@labs2.com)
*
* (C) 2001 Ximian, Inc.
#include <config.h>
#include <glib.h>
+#include <signal.h>
#include <mono/metadata/object.h>
#include <mono/metadata/appdomain.h>
#include <mono/metadata/profiler-private.h>
#include <mono/metadata/threads.h>
#include <mono/metadata/threads-types.h>
+#include <mono/metadata/exception.h>
+#include <mono/metadata/environment.h>
+#include <mono/metadata/monitor.h>
#include <mono/io-layer/io-layer.h>
+#include <mono/os/gc_wrapper.h>
+
#undef THREAD_DEBUG
-#undef THREAD_LOCK_DEBUG
#undef THREAD_WAIT_DEBUG
struct StartInfo
{
guint32 (*func)(void *);
- MonoObject *obj;
+ MonoThread *obj;
void *this;
MonoDomain *domain;
};
-/* Controls access to the 'threads' array */
-static CRITICAL_SECTION threads_mutex;
-
-/* Controls access to the sync field in MonoObjects, to avoid race
- * conditions when adding sync data to an object for the first time.
+typedef union {
+ gint32 ival;
+ gfloat fval;
+} IntFloatUnion;
+
+/*
+ * The "os_handle" field of the WaitHandle class.
*/
-static CRITICAL_SECTION monitor_mutex;
+static MonoClassField *wait_handle_os_handle_field = NULL;
-/* The array of existing threads that need joining before exit */
-static GPtrArray *threads=NULL;
+/* Controls access to the 'threads' hash table */
+static CRITICAL_SECTION threads_mutex;
-/* The MonoObject associated with the main thread */
-static MonoObject *main_thread;
+/* The hash of existing threads (key is thread ID) that need joining
+ * before exit
+ */
+static MonoGHashTable *threads=NULL;
/* The TLS key that holds the MonoObject assigned to each thread */
static guint32 current_object_key;
+/* function called at thread start */
+static MonoThreadStartCB mono_thread_start_cb = NULL;
+
+/* function called at thread attach */
+static MonoThreadAttachCB mono_thread_attach_cb = NULL;
+
+/* function called when a new thread has been created */
+static MonoThreadCallbacks *mono_thread_callbacks = NULL;
+
/* The TLS key that holds the LocalDataStoreSlot hash in each thread */
static guint32 slothash_key;
+static void thread_adjust_static_data (MonoThread *thread);
+
/* Spin lock for InterlockedXXX 64 bit functions */
static CRITICAL_SECTION interlocked_mutex;
+/* handle_store() and handle_remove() manage the array of threads that
+ * still need to be waited for when the main thread exits.
+ */
+static void handle_store(MonoThread *thread)
+{
+ EnterCriticalSection(&threads_mutex);
+
+#ifdef THREAD_DEBUG
+ g_message(G_GNUC_PRETTY_FUNCTION ": thread %p ID %d", thread,
+ thread->tid);
+#endif
+
+ if(threads==NULL) {
+ threads=mono_g_hash_table_new(g_direct_hash, g_direct_equal);
+ }
+
+ /* We don't need to duplicate thread->handle, because it is
+ * only closed when the thread object is finalized by the GC.
+ */
+ mono_g_hash_table_insert(threads, GUINT_TO_POINTER(thread->tid), thread);
+ LeaveCriticalSection(&threads_mutex);
+}
+
+static void handle_remove(guint32 tid)
+{
+#ifdef THREAD_DEBUG
+ g_message(G_GNUC_PRETTY_FUNCTION ": thread ID %d", tid);
+#endif
+
+ EnterCriticalSection(&threads_mutex);
+
+ mono_g_hash_table_remove (threads, GUINT_TO_POINTER(tid));
+
+ LeaveCriticalSection(&threads_mutex);
+
+ /* Don't close the handle here, wait for the object finalizer
+ * to do it. Otherwise, the following race condition applies:
+ *
+ * 1) Thread exits (and handle_remove() closes the handle)
+ *
+ * 2) Some other handle is reassigned the same slot
+ *
+ * 3) Another thread tries to join the first thread, and
+ * blocks waiting for the reassigned handle to be signalled
+ * (which might never happen). This is possible, because the
+ * thread calling Join() still has a reference to the first
+ * thread's object.
+ */
+}
+
+static void thread_cleanup (MonoThread *thread)
+{
+ mono_monitor_try_enter ((MonoObject *)thread, INFINITE);
+ thread->state |= ThreadState_Stopped;
+ mono_monitor_exit ((MonoObject *)thread);
+
+ mono_profiler_thread_end (thread->tid);
+ handle_remove (thread->tid);
+}
+
static guint32 start_wrapper(void *data)
{
struct StartInfo *start_info=(struct StartInfo *)data;
guint32 (*start_func)(void *);
void *this;
+ guint32 tid;
+ MonoThread *thread=start_info->obj;
#ifdef THREAD_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": Start wrapper");
+ g_message(G_GNUC_PRETTY_FUNCTION ": (%d) Start wrapper",
+ GetCurrentThreadId ());
#endif
-
- /* FIXME: GC problem here with recorded object
- * pointer!
- *
- * This is recorded so CurrentThread can return the
- * Thread object.
+
+ /* We can be sure start_info->obj->tid and
+ * start_info->obj->handle have been set, because the thread
+ * was created suspended, and these values were set before the
+ * thread resumed
*/
- TlsSetValue (current_object_key, start_info->obj);
- start_func = start_info->func;
+
+ tid=thread->tid;
+
mono_domain_set (start_info->domain);
+
+ start_func = start_info->func;
this = start_info->this;
- g_free (start_info);
-
- start_func (this);
-#ifdef THREAD_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": Start wrapper terminating");
+ /* This MUST be called before any managed code can be
+ * executed, as it calls the callback function that (for the
+ * jit) sets the lmf marker.
+ */
+ mono_thread_new_init (tid, &tid, start_func);
+ thread->stack_ptr = &tid;
+
+#ifdef LIBGC_DEBUG
+ g_message (G_GNUC_PRETTY_FUNCTION
+ ": (%d,%d) Setting thread stack to %p",
+ GetCurrentThreadId (), getpid (), thread->stack_ptr);
#endif
- return(0);
-}
-
-static void handle_store(HANDLE thread)
-{
#ifdef THREAD_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": thread %p", thread);
+ g_message (G_GNUC_PRETTY_FUNCTION
+ ": (%d) Setting current_object_key to %p",
+ GetCurrentThreadId (), thread);
#endif
- EnterCriticalSection(&threads_mutex);
- if(threads==NULL) {
- threads=g_ptr_array_new();
+ TlsSetValue (current_object_key, thread);
+
+ mono_profiler_thread_start (tid);
+
+ if(thread->start_notify!=NULL) {
+ /* Let the thread that called Start() know we're
+ * ready
+ */
+ ReleaseSemaphore (thread->start_notify, 1, NULL);
}
- g_ptr_array_add(threads, thread);
- LeaveCriticalSection(&threads_mutex);
-}
+
+ g_free (start_info);
+
+ thread_adjust_static_data (thread);
+
+ start_func (this);
+
+ /* If the thread calls ExitThread at all, this remaining code
+ * will not be executed, but the main thread will eventually
+ * call thread_cleanup() on this thread's behalf.
+ */
-static void handle_remove(HANDLE thread)
-{
#ifdef THREAD_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": thread %p", thread);
+ g_message(G_GNUC_PRETTY_FUNCTION ": (%d) Start wrapper terminating",
+ GetCurrentThreadId ());
#endif
+
+ thread_cleanup (thread);
+
+ return(0);
+}
- EnterCriticalSection(&threads_mutex);
- g_ptr_array_remove_fast(threads, thread);
- LeaveCriticalSection(&threads_mutex);
- CloseHandle(thread);
+void mono_thread_new_init (guint32 tid, gpointer stack_start, gpointer func)
+{
+ if (mono_thread_start_cb) {
+ mono_thread_start_cb (tid, stack_start, func);
+ }
+
+ if (mono_thread_callbacks)
+ (* mono_thread_callbacks->thread_created) (tid, stack_start, func);
}
-MonoObject *
-mono_thread_create (MonoDomain *domain, gpointer func)
+void mono_thread_create (MonoDomain *domain, gpointer func, gpointer arg)
{
- MonoClassField *field;
- MonoObject *thread;
+ MonoThread *thread;
HANDLE thread_handle;
struct StartInfo *start_info;
guint32 tid;
- thread = mono_object_new (domain, mono_defaults.thread_class);
-
- field=mono_class_get_field_from_name(mono_defaults.thread_class, "system_thread_handle");
- g_assert (field);
+ thread=(MonoThread *)mono_object_new (domain,
+ mono_defaults.thread_class);
start_info=g_new0 (struct StartInfo, 1);
start_info->func = func;
start_info->obj = thread;
start_info->domain = domain;
+ start_info->this = arg;
- thread_handle = CreateThread(NULL, 0, start_wrapper, start_info, 0, &tid);
+ /* Create suspended, so we can do some housekeeping before the thread
+ * starts
+ */
+ thread_handle = CreateThread(NULL, 0, start_wrapper, start_info,
+ CREATE_SUSPENDED, &tid);
+#ifdef THREAD_DEBUG
+ g_message(G_GNUC_PRETTY_FUNCTION ": Started thread ID %d (handle %p)",
+ tid, thread_handle);
+#endif
g_assert (thread_handle);
- *(gpointer *)(((char *)thread) + field->offset) = thread_handle;
+ thread->handle=thread_handle;
+ thread->tid=tid;
- /*
- * This thread is not added to the threads array: why?
- */
- mono_profiler_thread_start (thread_handle);
- return thread;
+ handle_store(thread);
+
+ ResumeThread (thread_handle);
+}
+
+MonoThread *
+mono_thread_attach (MonoDomain *domain)
+{
+ MonoThread *thread;
+ HANDLE thread_handle;
+ guint32 tid;
+
+ if ((thread = mono_thread_current ())) {
+ g_warning ("mono_thread_attach called for an already attached thread");
+ if (mono_thread_attach_cb) {
+ mono_thread_attach_cb (tid, &tid);
+ }
+ return thread;
+ }
+
+ thread = (MonoThread *)mono_object_new (domain,
+ mono_defaults.thread_class);
+
+ thread_handle = GetCurrentThread ();
+ g_assert (thread_handle);
+
+ tid=GetCurrentThreadId ();
+
+ thread->handle=thread_handle;
+ thread->tid=tid;
+
+#ifdef THREAD_DEBUG
+ g_message(G_GNUC_PRETTY_FUNCTION ": Attached thread ID %d (handle %p)",
+ tid, thread_handle);
+#endif
+
+ handle_store(thread);
+
+#ifdef THREAD_DEBUG
+ g_message (G_GNUC_PRETTY_FUNCTION
+ ": (%d) Setting current_object_key to %p",
+ GetCurrentThreadId (), thread);
+#endif
+
+ TlsSetValue (current_object_key, thread);
+ mono_domain_set (domain);
+
+ thread_adjust_static_data (thread);
+
+ if (mono_thread_attach_cb) {
+ mono_thread_attach_cb (tid, &tid);
+ }
+
+ return(thread);
}
-HANDLE ves_icall_System_Threading_Thread_Thread_internal(MonoObject *this,
+HANDLE ves_icall_System_Threading_Thread_Thread_internal(MonoThread *this,
MonoObject *start)
{
MonoMulticastDelegate *delegate = (MonoMulticastDelegate*)start;
guint32 (*start_func)(void *);
struct StartInfo *start_info;
+ MonoMethod *im;
HANDLE thread;
guint32 tid;
+ MONO_ARCH_SAVE_REGS;
+
#ifdef THREAD_DEBUG
g_message(G_GNUC_PRETTY_FUNCTION
": Trying to start a new thread: this (%p) start (%p)",
this, start);
#endif
- start_func = delegate->delegate.method_ptr;
-
+ im = mono_get_delegate_invoke (start->vtable->klass);
+ if (mono_thread_callbacks)
+ start_func = (* mono_thread_callbacks->thread_start_compile_func) (im);
+ else
+ start_func = mono_compile_method (im);
+
if(start_func==NULL) {
g_warning(G_GNUC_PRETTY_FUNCTION
": Can't locate start method!");
/* This is freed in start_wrapper */
start_info = g_new0 (struct StartInfo, 1);
start_info->func = start_func;
- start_info->this = delegate->delegate.target;
+ start_info->this = delegate;
start_info->obj = this;
start_info->domain = mono_domain_get ();
-
+
+ this->start_notify=CreateSemaphore (NULL, 0, 0x7fffffff, NULL);
+ if(this->start_notify==NULL) {
+ g_warning (G_GNUC_PRETTY_FUNCTION ": CreateSemaphore error 0x%x", GetLastError ());
+ return(NULL);
+ }
+
thread=CreateThread(NULL, 0, start_wrapper, start_info,
CREATE_SUSPENDED, &tid);
if(thread==NULL) {
return(NULL);
}
+ this->handle=thread;
+ this->tid=tid;
+
+ /* Don't call handle_store() here, delay it to Start.
+ * We can't join a thread (trying to will just block
+ * forever) until it actually starts running, so don't
+ * store the handle till then.
+ */
+
#ifdef THREAD_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": Started thread ID %d",
- tid);
+ g_message(G_GNUC_PRETTY_FUNCTION
+ ": Started thread ID %d (handle %p)", tid, thread);
#endif
- /* Store handle for cleanup later */
- handle_store(thread);
- mono_profiler_thread_start (thread);
-
return(thread);
}
}
-void ves_icall_System_Threading_Thread_Start_internal(MonoObject *this,
+void ves_icall_System_Threading_Thread_Thread_free_internal (MonoThread *this,
+ HANDLE thread)
+{
+ MONO_ARCH_SAVE_REGS;
+
+#ifdef THREAD_DEBUG
+ g_message (G_GNUC_PRETTY_FUNCTION ": Closing thread %p, handle %p",
+ this, thread);
+#endif
+
+ CloseHandle (thread);
+}
+
+void ves_icall_System_Threading_Thread_Start_internal(MonoThread *this,
HANDLE thread)
{
+ MONO_ARCH_SAVE_REGS;
+
#ifdef THREAD_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": Launching thread %p", this);
+ g_message(G_GNUC_PRETTY_FUNCTION ": (%d) Launching thread %p (%d)",
+ GetCurrentThreadId (), this, this->tid);
#endif
+ /* Only store the handle when the thread is about to be
+ * launched, to avoid the main thread deadlocking while trying
+ * to clean up a thread that will never be signalled.
+ */
+ handle_store(this);
+
+ if (mono_thread_callbacks)
+ (* mono_thread_callbacks->start_resume) (this->tid);
+
ResumeThread(thread);
+
+ if (mono_thread_callbacks)
+ (* mono_thread_callbacks->end_resume) (this->tid);
+
+ if(this->start_notify!=NULL) {
+ /* Wait for the thread to set up its TLS data etc, so
+ * theres no potential race condition if someone tries
+ * to look up the data believing the thread has
+ * started
+ */
+
+#ifdef THREAD_DEBUG
+ g_message(G_GNUC_PRETTY_FUNCTION
+ ": (%d) waiting for thread %p (%d) to start",
+ GetCurrentThreadId (), this, this->tid);
+#endif
+
+ WaitForSingleObject (this->start_notify, INFINITE);
+ CloseHandle (this->start_notify);
+ this->start_notify=NULL;
+ }
+
+#ifdef THREAD_DEBUG
+ g_message(G_GNUC_PRETTY_FUNCTION
+ ": (%d) Done launching thread %p (%d)",
+ GetCurrentThreadId (), this, this->tid);
+#endif
}
void ves_icall_System_Threading_Thread_Sleep_internal(gint32 ms)
{
+ MONO_ARCH_SAVE_REGS;
+
#ifdef THREAD_DEBUG
g_message(G_GNUC_PRETTY_FUNCTION ": Sleeping for %d ms", ms);
#endif
Sleep(ms);
}
-MonoAppDomain *ves_icall_System_Threading_Thread_CurrentThreadDomain_internal(void)
+gint32
+ves_icall_System_Threading_Thread_GetDomainID (void)
{
- /* return the current app */
- return mono_domain_get()->domain;
+ MONO_ARCH_SAVE_REGS;
+
+ return mono_domain_get()->domain_id;
}
-MonoObject *ves_icall_System_Threading_Thread_CurrentThread_internal(void)
+MonoThread *
+mono_thread_current (void)
{
- MonoObject *thread;
+ MonoThread *thread;
+ MONO_ARCH_SAVE_REGS;
+
/* Find the current thread object */
- thread=TlsGetValue(current_object_key);
- return(thread);
+ thread=TlsGetValue (current_object_key);
+
+#ifdef THREAD_DEBUG
+ g_message (G_GNUC_PRETTY_FUNCTION ": returning %p", thread);
+#endif
+
+ return (thread);
}
-gboolean ves_icall_System_Threading_Thread_Join_internal(MonoObject *this,
+gboolean ves_icall_System_Threading_Thread_Join_internal(MonoThread *this,
int ms, HANDLE thread)
{
gboolean ret;
+ MONO_ARCH_SAVE_REGS;
+
if(ms== -1) {
ms=INFINITE;
}
+#ifdef THREAD_DEBUG
+ g_message (G_GNUC_PRETTY_FUNCTION ": joining thread handle %p, %d ms",
+ thread, ms);
+#endif
ret=WaitForSingleObject(thread, ms);
if(ret==WAIT_OBJECT_0) {
- /* is the handle still valid at this point? */
- mono_profiler_thread_end (thread);
- /* Clean up the handle */
- handle_remove(thread);
+#ifdef THREAD_DEBUG
+ g_message (G_GNUC_PRETTY_FUNCTION ": join successful");
+#endif
+
return(TRUE);
}
+#ifdef THREAD_DEBUG
+ g_message (G_GNUC_PRETTY_FUNCTION ": join failed");
+#endif
+
return(FALSE);
}
void ves_icall_System_Threading_Thread_SlotHash_store(MonoObject *data)
{
+ MONO_ARCH_SAVE_REGS;
+
#ifdef THREAD_DEBUG
g_message(G_GNUC_PRETTY_FUNCTION ": Storing key %p", data);
#endif
{
MonoObject *data;
+ MONO_ARCH_SAVE_REGS;
+
data=TlsGetValue(slothash_key);
#ifdef THREAD_DEBUG
return(data);
}
-static MonoThreadsSync *mon_new(void)
-{
- MonoThreadsSync *new;
-
- /* This should be freed when the object that owns it is
- * deleted
- */
-
- new=(MonoThreadsSync *)g_new0(MonoThreadsSync, 1);
- new->monitor=CreateMutex(NULL, FALSE, NULL);
-#ifdef THREAD_LOCK_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": ThreadsSync mutex created: %p",
- new->monitor);
-#endif
-
- new->waiters_count=0;
- new->was_broadcast=FALSE;
- InitializeCriticalSection(&new->waiters_count_lock);
- new->sema=CreateSemaphore(NULL, 0, 0x7fffffff, NULL);
- new->waiters_done=CreateEvent(NULL, FALSE, FALSE, NULL);
-
- return(new);
-}
-
-gboolean ves_icall_System_Threading_Monitor_Monitor_try_enter(MonoObject *obj,
- int ms)
+/* FIXME: exitContext isnt documented */
+gboolean ves_icall_System_Threading_WaitHandle_WaitAll_internal(MonoArray *mono_handles, gint32 ms, gboolean exitContext)
{
- MonoThreadsSync *mon;
+ HANDLE *handles;
+ guint32 numhandles;
guint32 ret;
-
-#ifdef THREAD_LOCK_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION
- ": Trying to lock %p in thread %d", obj,
- GetCurrentThreadId());
-#endif
+ guint32 i;
+ MonoObject *waitHandle;
+ MonoClass *klass;
+
+ MONO_ARCH_SAVE_REGS;
- EnterCriticalSection(&monitor_mutex);
+ numhandles = mono_array_length(mono_handles);
+ handles = g_new0(HANDLE, numhandles);
- mon=obj->synchronisation;
- if(mon==NULL) {
- mon=mon_new();
- obj->synchronisation=mon;
+ if (wait_handle_os_handle_field == 0) {
+ /* Get the field os_handle which will contain the actual handle */
+ klass = mono_class_from_name(mono_defaults.corlib, "System.Threading", "WaitHandle");
+ wait_handle_os_handle_field = mono_class_get_field_from_name(klass, "os_handle");
+ }
+
+ for(i = 0; i < numhandles; i++) {
+ waitHandle = mono_array_get(mono_handles, MonoObject*, i);
+ mono_field_get_value(waitHandle, wait_handle_os_handle_field, &handles[i]);
}
- /* Don't hold the monitor lock while waiting to acquire the
- * object lock
- */
- LeaveCriticalSection(&monitor_mutex);
+ if(ms== -1) {
+ ms=INFINITE;
+ }
- /* Acquire the mutex */
-#ifdef THREAD_LOCK_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": Acquiring monitor mutex %p",
- mon->monitor);
-#endif
- ret=WaitForSingleObject(mon->monitor, ms);
- if(ret==WAIT_OBJECT_0) {
- mon->count++;
- mon->tid=GetCurrentThreadId();
+ ret=WaitForMultipleObjects(numhandles, handles, TRUE, ms);
+
+ g_free(handles);
-#ifdef THREAD_LOCK_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": %p now locked %d times", obj,
- mon->count);
+ if(ret==WAIT_FAILED) {
+#ifdef THREAD_WAIT_DEBUG
+ g_message(G_GNUC_PRETTY_FUNCTION ": (%d) Wait failed",
+ GetCurrentThreadId ());
#endif
-
- return(TRUE);
+ return(FALSE);
+ } else if(ret==WAIT_TIMEOUT) {
+#ifdef THREAD_WAIT_DEBUG
+ g_message(G_GNUC_PRETTY_FUNCTION ": (%d) Wait timed out",
+ GetCurrentThreadId ());
+#endif
+ return(FALSE);
}
-
- return(FALSE);
+
+ return(TRUE);
}
-void ves_icall_System_Threading_Monitor_Monitor_exit(MonoObject *obj)
+/* FIXME: exitContext isnt documented */
+gint32 ves_icall_System_Threading_WaitHandle_WaitAny_internal(MonoArray *mono_handles, gint32 ms, gboolean exitContext)
{
- MonoThreadsSync *mon;
-
-#ifdef THREAD_LOCK_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": Unlocking %p in thread %d", obj,
- GetCurrentThreadId());
-#endif
+ HANDLE *handles;
+ guint32 numhandles;
+ guint32 ret;
+ guint32 i;
+ MonoObject *waitHandle;
+ MonoClass *klass;
+
+ MONO_ARCH_SAVE_REGS;
- /* No need to lock monitor_mutex here because we only adjust
- * the monitor state if this thread already owns the lock
- */
- mon=obj->synchronisation;
+ numhandles = mono_array_length(mono_handles);
+ handles = g_new0(HANDLE, numhandles);
- if(mon==NULL) {
- return;
+ if (wait_handle_os_handle_field == 0) {
+ /* Get the field os_handle which will contain the actual handle */
+ klass = mono_class_from_name(mono_defaults.corlib, "System.Threading", "WaitHandle");
+ wait_handle_os_handle_field = mono_class_get_field_from_name(klass, "os_handle");
}
-
- if(mon->tid!=GetCurrentThreadId()) {
- return;
+
+ for(i = 0; i < numhandles; i++) {
+ waitHandle = mono_array_get(mono_handles, MonoObject*, i);
+ mono_field_get_value(waitHandle, wait_handle_os_handle_field, &handles[i]);
}
- mon->count--;
-
-#ifdef THREAD_LOCK_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": %p now locked %d times", obj,
- mon->count);
-#endif
-
- if(mon->count==0) {
- mon->tid=0; /* FIXME: check that 0 isnt a valid id */
+ if(ms== -1) {
+ ms=INFINITE;
}
-
-#ifdef THREAD_LOCK_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": Releasing mutex %p", mon->monitor);
-#endif
- ReleaseMutex(mon->monitor);
-}
+ ret=WaitForMultipleObjects(numhandles, handles, FALSE, ms);
-gboolean ves_icall_System_Threading_Monitor_Monitor_test_owner(MonoObject *obj)
-{
- MonoThreadsSync *mon;
- gboolean ret=FALSE;
+ g_free(handles);
-#ifdef THREAD_LOCK_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION
- ": Testing if %p is owned by thread %d", obj,
- GetCurrentThreadId());
+#ifdef THREAD_WAIT_DEBUG
+ g_message(G_GNUC_PRETTY_FUNCTION ": (%d) returning %d",
+ GetCurrentThreadId (), ret);
#endif
- EnterCriticalSection(&monitor_mutex);
-
- mon=obj->synchronisation;
- if(mon==NULL) {
- goto finished;
+ /*
+ * These need to be here. See MSDN dos on WaitForMultipleObjects.
+ */
+ if (ret >= WAIT_OBJECT_0 && ret <= WAIT_OBJECT_0 + numhandles - 1) {
+ return ret - WAIT_OBJECT_0;
}
-
- if(mon->tid!=GetCurrentThreadId()) {
- goto finished;
+ else if (ret >= WAIT_ABANDONED_0 && ret <= WAIT_ABANDONED_0 + numhandles - 1) {
+ return ret - WAIT_ABANDONED_0;
+ }
+ else {
+ return ret;
}
-
- ret=TRUE;
-
-finished:
- LeaveCriticalSection(&monitor_mutex);
-
- return(ret);
}
-gboolean ves_icall_System_Threading_Monitor_Monitor_test_synchronised(MonoObject *obj)
+/* FIXME: exitContext isnt documented */
+gboolean ves_icall_System_Threading_WaitHandle_WaitOne_internal(MonoObject *this, HANDLE handle, gint32 ms, gboolean exitContext)
{
- MonoThreadsSync *mon;
- gboolean ret=FALSE;
+ guint32 ret;
-#ifdef THREAD_LOCK_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION
- ": Testing if %p is owned by any thread", obj);
-#endif
+ MONO_ARCH_SAVE_REGS;
- EnterCriticalSection(&monitor_mutex);
-
- mon=obj->synchronisation;
- if(mon==NULL) {
- goto finished;
- }
-
- if(mon->tid==0) {
- goto finished;
- }
+#ifdef THREAD_WAIT_DEBUG
+ g_message(G_GNUC_PRETTY_FUNCTION ": (%d) waiting for %p, %d ms",
+ GetCurrentThreadId (), handle, ms);
+#endif
- g_assert(mon->count);
+ if(ms== -1) {
+ ms=INFINITE;
+ }
- ret=TRUE;
+ ret=WaitForSingleObject(handle, ms);
+ if(ret==WAIT_FAILED) {
+#ifdef THREAD_WAIT_DEBUG
+ g_message(G_GNUC_PRETTY_FUNCTION ": (%d) Wait failed",
+ GetCurrentThreadId ());
+#endif
+ return(FALSE);
+ } else if(ret==WAIT_TIMEOUT) {
+#ifdef THREAD_WAIT_DEBUG
+ g_message(G_GNUC_PRETTY_FUNCTION ": (%d) Wait timed out",
+ GetCurrentThreadId ());
+#endif
+ return(FALSE);
+ }
-finished:
- LeaveCriticalSection(&monitor_mutex);
+ return(TRUE);
+}
+
+HANDLE ves_icall_System_Threading_Mutex_CreateMutex_internal (MonoBoolean owned,char *name) {
+ MONO_ARCH_SAVE_REGS;
+
+ return(CreateMutex(NULL,owned,name));
+}
+
+void ves_icall_System_Threading_Mutex_ReleaseMutex_internal (HANDLE handle ) {
+ MONO_ARCH_SAVE_REGS;
- return(ret);
+ ReleaseMutex(handle);
}
-
-void ves_icall_System_Threading_Monitor_Monitor_pulse(MonoObject *obj)
+HANDLE ves_icall_System_Threading_Events_CreateEvent_internal (MonoBoolean manual,
+ MonoBoolean initial,
+ char *name) {
+ MONO_ARCH_SAVE_REGS;
+
+ return (CreateEvent(NULL,manual,initial,name));
+}
+
+gboolean ves_icall_System_Threading_Events_SetEvent_internal (HANDLE handle) {
+ MONO_ARCH_SAVE_REGS;
+
+ return (SetEvent(handle));
+}
+
+gboolean ves_icall_System_Threading_Events_ResetEvent_internal (HANDLE handle) {
+ MONO_ARCH_SAVE_REGS;
+
+ return (ResetEvent(handle));
+}
+
+gint32 ves_icall_System_Threading_Interlocked_Increment_Int (gint32 *location)
{
- gboolean have_waiters;
- MonoThreadsSync *mon;
-
-#ifdef THREAD_LOCK_DEBUG
- g_message("Pulsing %p in thread %d", obj, GetCurrentThreadId());
-#endif
+ MONO_ARCH_SAVE_REGS;
- EnterCriticalSection(&monitor_mutex);
-
- mon=obj->synchronisation;
- if(mon==NULL) {
- LeaveCriticalSection(&monitor_mutex);
- return;
- }
+ return InterlockedIncrement (location);
+}
- if(mon->tid!=GetCurrentThreadId()) {
- LeaveCriticalSection(&monitor_mutex);
- return;
- }
- LeaveCriticalSection(&monitor_mutex);
-
- EnterCriticalSection(&mon->waiters_count_lock);
- have_waiters=(mon->waiters_count>0);
- LeaveCriticalSection(&mon->waiters_count_lock);
-
- if(have_waiters==TRUE) {
- ReleaseSemaphore(mon->sema, 1, 0);
- }
+gint64 ves_icall_System_Threading_Interlocked_Increment_Long (gint64 *location)
+{
+ gint32 lowret;
+ gint32 highret;
+
+ MONO_ARCH_SAVE_REGS;
+
+ EnterCriticalSection(&interlocked_mutex);
+
+ lowret = InterlockedIncrement((gint32 *) location);
+ if (0 == lowret)
+ highret = InterlockedIncrement((gint32 *) location + 1);
+ else
+ highret = *((gint32 *) location + 1);
+
+ LeaveCriticalSection(&interlocked_mutex);
+
+ return (gint64) highret << 32 | (gint64) lowret;
}
-void ves_icall_System_Threading_Monitor_Monitor_pulse_all(MonoObject *obj)
+gint32 ves_icall_System_Threading_Interlocked_Decrement_Int (gint32 *location)
{
- gboolean have_waiters=FALSE;
- MonoThreadsSync *mon;
-
-#ifdef THREAD_LOCK_DEBUG
- g_message("Pulsing all %p", obj);
-#endif
+ MONO_ARCH_SAVE_REGS;
- EnterCriticalSection(&monitor_mutex);
-
- mon=obj->synchronisation;
- if(mon==NULL) {
- LeaveCriticalSection(&monitor_mutex);
- return;
- }
+ return InterlockedDecrement(location);
+}
- if(mon->tid!=GetCurrentThreadId()) {
- LeaveCriticalSection(&monitor_mutex);
- return;
- }
- LeaveCriticalSection(&monitor_mutex);
-
- EnterCriticalSection(&mon->waiters_count_lock);
- if(mon->waiters_count>0) {
- mon->was_broadcast=TRUE;
- have_waiters=TRUE;
- }
-
- if(have_waiters==TRUE) {
- ReleaseSemaphore(mon->sema, mon->waiters_count, 0);
-
- LeaveCriticalSection(&mon->waiters_count_lock);
-
- WaitForSingleObject(mon->waiters_done, INFINITE);
- mon->was_broadcast=FALSE;
- } else {
- LeaveCriticalSection(&mon->waiters_count_lock);
- }
+gint64 ves_icall_System_Threading_Interlocked_Decrement_Long (gint64 * location)
+{
+ gint32 lowret;
+ gint32 highret;
+
+ MONO_ARCH_SAVE_REGS;
+
+ EnterCriticalSection(&interlocked_mutex);
+
+ lowret = InterlockedDecrement((gint32 *) location);
+ if (-1 == lowret)
+ highret = InterlockedDecrement((gint32 *) location + 1);
+ else
+ highret = *((gint32 *) location + 1);
+
+ LeaveCriticalSection(&interlocked_mutex);
+
+ return (gint64) highret << 32 | (gint64) lowret;
}
-gboolean ves_icall_System_Threading_Monitor_Monitor_wait(MonoObject *obj,
- int ms)
+gint32 ves_icall_System_Threading_Interlocked_Exchange_Int (gint32 *location1, gint32 value)
{
- gboolean last_waiter;
- MonoThreadsSync *mon;
- guint32 save_count;
-
-#ifdef THREAD_LOCK_DEBUG
- g_message("Trying to wait for %p in thread %d with timeout %dms", obj,
- GetCurrentThreadId(), ms);
-#endif
+ MONO_ARCH_SAVE_REGS;
- EnterCriticalSection(&monitor_mutex);
-
- mon=obj->synchronisation;
- if(mon==NULL) {
- LeaveCriticalSection(&monitor_mutex);
- return(FALSE);
- }
+ return InterlockedExchange(location1, value);
+}
- if(mon->tid!=GetCurrentThreadId()) {
- LeaveCriticalSection(&monitor_mutex);
- return(FALSE);
- }
- LeaveCriticalSection(&monitor_mutex);
-
- EnterCriticalSection(&mon->waiters_count_lock);
- mon->waiters_count++;
- LeaveCriticalSection(&mon->waiters_count_lock);
-
-#ifdef THREAD_LOCK_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": %p locked %d times", obj,
- mon->count);
-#endif
+MonoObject * ves_icall_System_Threading_Interlocked_Exchange_Object (MonoObject **location1, MonoObject *value)
+{
+ MONO_ARCH_SAVE_REGS;
- /* We need to put the lock count back afterwards */
- save_count=mon->count;
-
- while(mon->count>1) {
-#ifdef THREAD_LOCK_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": Releasing mutex %p",
- mon->monitor);
-#endif
+ return (MonoObject *) InterlockedExchangePointer((gpointer *) location1, value);
+}
- ReleaseMutex(mon->monitor);
- mon->count--;
- }
-
- /* We're releasing this mutex */
- mon->count=0;
- mon->tid=0;
-#ifdef THREAD_LOCK_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": Signalling monitor mutex %p",
- mon->monitor);
-#endif
+gfloat ves_icall_System_Threading_Interlocked_Exchange_Single (gfloat *location1, gfloat value)
+{
+ IntFloatUnion val, ret;
- SignalObjectAndWait(mon->monitor, mon->sema, INFINITE, FALSE);
-
- EnterCriticalSection(&mon->waiters_count_lock);
- mon->waiters_count++;
- last_waiter=mon->was_broadcast && mon->waiters_count==0;
- LeaveCriticalSection(&mon->waiters_count_lock);
-
- if(last_waiter) {
-#ifdef THREAD_LOCK_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": Waiting for monitor mutex %p",
- mon->monitor);
-#endif
- SignalObjectAndWait(mon->waiters_done, mon->monitor, INFINITE, FALSE);
- } else {
-#ifdef THREAD_LOCK_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": Waiting for monitor mutex %p",
- mon->monitor);
-#endif
- WaitForSingleObject(mon->monitor, INFINITE);
- }
+ MONO_ARCH_SAVE_REGS;
- /* We've reclaimed this mutex */
- mon->count=save_count;
- mon->tid=GetCurrentThreadId();
+ val.fval = value;
+ ret.ival = InterlockedExchange((gint32 *) location1, val.ival);
- /* Lock the mutex the required number of times */
- while(save_count>1) {
-#ifdef THREAD_LOCK_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION
- ": Waiting for monitor mutex %p", mon->monitor);
-#endif
- WaitForSingleObject(mon->monitor, INFINITE);
- save_count--;
- }
-
-#ifdef THREAD_LOCK_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": %p still locked %d times", obj,
- mon->count);
-#endif
-
- return(TRUE);
+ return ret.fval;
}
-/* FIXME: exitContext isnt documented */
-gboolean ves_icall_System_Threading_WaitHandle_WaitAll_internal(MonoArray *mono_handles, gint32 ms, gboolean exitContext)
+gint32 ves_icall_System_Threading_Interlocked_CompareExchange_Int(gint32 *location1, gint32 value, gint32 comparand)
{
- HANDLE *handles;
- guint32 numhandles;
- guint32 ret;
- guint32 i;
-
- numhandles=mono_array_length(mono_handles);
- handles=g_new0(HANDLE, numhandles);
- for(i=0; i<numhandles; i++) {
- handles[i]=mono_array_get(mono_handles, HANDLE, i);
- }
-
- if(ms== -1) {
- ms=INFINITE;
- }
-
- ret=WaitForMultipleObjects(numhandles, handles, TRUE, ms);
+ MONO_ARCH_SAVE_REGS;
- g_free(handles);
-
- if(ret==WAIT_FAILED) {
-#ifdef THREAD_WAIT_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": Wait failed");
-#endif
- return(FALSE);
- } else if(ret==WAIT_TIMEOUT) {
-#ifdef THREAD_WAIT_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": Wait timed out");
-#endif
- return(FALSE);
- }
-
- return(TRUE);
+ return InterlockedCompareExchange(location1, value, comparand);
}
-/* FIXME: exitContext isnt documented */
-gint32 ves_icall_System_Threading_WaitHandle_WaitAny_internal(MonoArray *mono_handles, gint32 ms, gboolean exitContext)
+MonoObject * ves_icall_System_Threading_Interlocked_CompareExchange_Object (MonoObject **location1, MonoObject *value, MonoObject *comparand)
{
- HANDLE *handles;
- guint32 numhandles;
- guint32 ret;
- guint32 i;
-
- numhandles=mono_array_length(mono_handles);
- handles=g_new0(HANDLE, numhandles);
- for(i=0; i<numhandles; i++) {
- handles[i]=mono_array_get(mono_handles, HANDLE, i);
- }
-
- if(ms== -1) {
- ms=INFINITE;
- }
+ MONO_ARCH_SAVE_REGS;
- ret=WaitForMultipleObjects(numhandles, handles, FALSE, ms);
+ return (MonoObject *) InterlockedCompareExchangePointer((gpointer *) location1, value, comparand);
+}
- g_free(handles);
-
-#ifdef THREAD_WAIT_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": returning %d", ret);
-#endif
+gfloat ves_icall_System_Threading_Interlocked_CompareExchange_Single (gfloat *location1, gfloat value, gfloat comparand)
+{
+ IntFloatUnion val, ret, cmp;
+
+ MONO_ARCH_SAVE_REGS;
- return(ret);
+ val.fval = value;
+ cmp.fval = comparand;
+ ret.ival = InterlockedCompareExchange((gint32 *) location1, val.ival, cmp.ival);
+
+ return ret.fval;
}
-/* FIXME: exitContext isnt documented */
-gboolean ves_icall_System_Threading_WaitHandle_WaitOne_internal(MonoObject *this, HANDLE handle, gint32 ms, gboolean exitContext)
+int
+mono_thread_get_abort_signal (void)
{
- guint32 ret;
+#ifdef __MINGW32__
+ return -1;
+#else
+#ifndef SIGRTMIN
+ return SIGUSR1;
+#else
+ return SIGRTMIN;
+#endif
+#endif /* __MINGW32__ */
+}
+
+void
+ves_icall_System_Threading_Thread_Abort (MonoThread *thread, MonoObject *state)
+{
+ MONO_ARCH_SAVE_REGS;
+
+ thread->abort_state = state;
+ thread->abort_exc = mono_get_exception_thread_abort ();
+
+#ifdef THREAD_DEBUG
+ g_message (G_GNUC_PRETTY_FUNCTION
+ ": (%d) Abort requested for %p (%d)", GetCurrentThreadId (),
+ thread, thread->tid);
+#endif
-#ifdef THREAD_WAIT_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": waiting for %p", handle);
+#ifdef __MINGW32__
+ g_assert_not_reached ();
+#else
+ /* fixme: store the state somewhere */
+#ifdef PTHREAD_POINTER_ID
+ pthread_kill (GUINT_TO_POINTER(thread->tid), mono_thread_get_abort_signal ());
+#else
+ pthread_kill (thread->tid, mono_thread_get_abort_signal ());
#endif
+#endif /* __MINGW32__ */
+}
+
+void
+ves_icall_System_Threading_Thread_ResetAbort (void)
+{
+ MonoThread *thread = mono_thread_current ();
- if(ms== -1) {
- ms=INFINITE;
+ MONO_ARCH_SAVE_REGS;
+
+ if (!thread->abort_exc) {
+ const char *msg = "Unable to reset abort because no abort was requested";
+ mono_raise_exception (mono_get_exception_thread_state (msg));
+ } else {
+ thread->abort_exc = NULL;
+ thread->abort_state = NULL;
}
+}
+
+void mono_thread_init (MonoThreadStartCB start_cb,
+ MonoThreadAttachCB attach_cb)
+{
+ InitializeCriticalSection(&threads_mutex);
+ InitializeCriticalSection(&interlocked_mutex);
- ret=WaitForSingleObject(handle, ms);
- if(ret==WAIT_FAILED) {
-#ifdef THREAD_WAIT_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": Wait failed");
-#endif
- return(FALSE);
- } else if(ret==WAIT_TIMEOUT) {
-#ifdef THREAD_WAIT_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION ": Wait timed out");
+ current_object_key=TlsAlloc();
+#ifdef THREAD_DEBUG
+ g_message (G_GNUC_PRETTY_FUNCTION ": Allocated current_object_key %d",
+ current_object_key);
#endif
- return(FALSE);
- }
-
- return(TRUE);
-}
-HANDLE ves_icall_System_Threading_Mutex_CreateMutex_internal (MonoBoolean owned,char *name) {
- return(CreateMutex(NULL,owned,name));
-}
+ mono_thread_start_cb = start_cb;
+ mono_thread_attach_cb = attach_cb;
-void ves_icall_System_Threading_Mutex_ReleaseMutex_internal (HANDLE handle ) {
- ReleaseMutex(handle);
-}
+ slothash_key=TlsAlloc();
-HANDLE ves_icall_System_Threading_Events_CreateEvent_internal (MonoBoolean manual,
- MonoBoolean initial,
- char *name) {
- return (CreateEvent(NULL,manual,initial,name));
+ /* Get a pseudo handle to the current process. This is just a
+ * kludge so that wapi can build a process handle if needed.
+ * As a pseudo handle is returned, we don't need to clean
+ * anything up.
+ */
+ GetCurrentProcess ();
}
-gboolean ves_icall_System_Threading_Events_SetEvent_internal (HANDLE handle) {
- return (SetEvent(handle));
+void mono_install_thread_callbacks (MonoThreadCallbacks *callbacks)
+{
+ mono_thread_callbacks = callbacks;
}
-gboolean ves_icall_System_Threading_Events_ResetEvent_internal (HANDLE handle) {
- return (ResetEvent(handle));
+#ifdef THREAD_DEBUG
+static void print_tids (gpointer key, gpointer value, gpointer user)
+{
+ g_message ("Waiting for: %d", GPOINTER_TO_UINT(key));
}
+#endif
-void mono_thread_init(MonoDomain *domain)
+struct wait_data
{
- MonoClass *thread_class;
-
- /* Build a System.Threading.Thread object instance to return
- * for the main line's Thread.CurrentThread property.
- */
- thread_class=mono_class_from_name(mono_defaults.corlib, "System.Threading", "Thread");
+ HANDLE handles[MAXIMUM_WAIT_OBJECTS];
+ MonoThread *threads[MAXIMUM_WAIT_OBJECTS];
+ guint32 num;
+};
+
+static void wait_for_tids (struct wait_data *wait)
+{
+ guint32 i, ret;
- /* I wonder what happens if someone tries to destroy this
- * object? In theory, I guess the whole program should act as
- * though exit() were called :-)
- */
#ifdef THREAD_DEBUG
g_message(G_GNUC_PRETTY_FUNCTION
- ": Starting to build main Thread object");
+ ": %d threads to wait for in this batch", wait->num);
#endif
- main_thread = mono_object_new (domain, thread_class);
+
+ ret=WaitForMultipleObjects(wait->num, wait->handles, TRUE, INFINITE);
+ if(ret==WAIT_FAILED) {
+ /* See the comment in build_wait_tids() */
#ifdef THREAD_DEBUG
- g_message(G_GNUC_PRETTY_FUNCTION
- ": Finished to building main Thread object");
+ g_message (G_GNUC_PRETTY_FUNCTION ": Wait failed");
#endif
+ return;
+ }
+
- InitializeCriticalSection(&threads_mutex);
- InitializeCriticalSection(&monitor_mutex);
- InitializeCriticalSection(&interlocked_mutex);
+ for(i=0; i<wait->num; i++) {
+ guint32 tid=wait->threads[i]->tid;
+
+ if(mono_g_hash_table_lookup (threads, GUINT_TO_POINTER(tid))!=NULL) {
+ /* This thread must have been killed, because
+ * it hasn't cleaned itself up. (It's just
+ * possible that the thread exited before the
+ * parent thread had a chance to store the
+ * handle, and now there is another pointer to
+ * the already-exited thread stored. In this
+ * case, we'll just get two
+ * mono_profiler_thread_end() calls for the
+ * same thread.)
+ */
- current_object_key=TlsAlloc();
- TlsSetValue(current_object_key, main_thread);
+#ifdef THREAD_DEBUG
+ g_message (G_GNUC_PRETTY_FUNCTION
+ ": cleaning up after thread %d", tid);
+#endif
+ thread_cleanup (wait->threads[i]);
+ }
+ }
+}
- slothash_key=TlsAlloc();
+static void build_wait_tids (gpointer key, gpointer value, gpointer user)
+{
+ struct wait_data *wait=(struct wait_data *)user;
+
+ if(wait->num<MAXIMUM_WAIT_OBJECTS) {
+ MonoThread *thread=(MonoThread *)value;
+
+ /* BUG: For now we just ignore background threads, we should abort them
+ */
+ if (thread->state & ThreadState_Background)
+ return; /* just leave, ignore */
+
+ wait->handles[wait->num]=thread->handle;
+ wait->threads[wait->num]=thread;
+ wait->num++;
+ } else {
+ /* Just ignore the rest, we can't do anything with
+ * them yet
+ */
+ }
}
-void mono_thread_cleanup(void)
+void mono_thread_manage (void)
{
- HANDLE wait[MAXIMUM_WAIT_OBJECTS];
- guint32 i, j;
+ struct wait_data *wait=g_new0 (struct wait_data, 1);
/* join each thread that's still running */
#ifdef THREAD_DEBUG
- g_message("Joining each running thread...");
+ g_message(G_GNUC_PRETTY_FUNCTION ": Joining each running thread...");
#endif
if(threads==NULL) {
#ifdef THREAD_DEBUG
- g_message("No threads");
+ g_message(G_GNUC_PRETTY_FUNCTION ": No threads");
#endif
return;
}
- /* This isnt the right way to do it.
- *
- * The first method call should be started in its own thread,
- * and then the main thread should poll an event and wait for
- * any terminated threads, until there are none left.
- */
+ do {
+ EnterCriticalSection (&threads_mutex);
#ifdef THREAD_DEBUG
- g_message("There are %d threads to join", threads->len);
- for(i=0; i<threads->len; i++) {
- g_message("Waiting for: %p", g_ptr_array_index(threads, i));
- }
+ g_message(G_GNUC_PRETTY_FUNCTION
+ ":There are %d threads to join",
+ mono_g_hash_table_size (threads));
+ mono_g_hash_table_foreach (threads, print_tids, NULL);
#endif
- for(i=0; i<threads->len; i+=MAXIMUM_WAIT_OBJECTS) {
- for(j=0; j<MAXIMUM_WAIT_OBJECTS && i+j<threads->len; j++) {
-#ifdef THREAD_DEBUG
- g_message("Waiting for threads %d in slot %d", i+j, j);
-#endif
- wait[j]=g_ptr_array_index(threads, i+j);
+ wait->num=0;
+ mono_g_hash_table_foreach (threads, build_wait_tids, wait);
+
+ LeaveCriticalSection (&threads_mutex);
+ if(wait->num>0) {
+ /* Something to wait for */
+ wait_for_tids (wait);
}
-#ifdef THREAD_DEBUG
- g_message("%d threads to wait for in this batch", j);
-#endif
-
- WaitForMultipleObjects(j, wait, TRUE, INFINITE);
- }
+ } while(wait->num>0);
+
+ g_free (wait);
- g_ptr_array_free(threads, FALSE);
+ mono_g_hash_table_destroy(threads);
threads=NULL;
}
-gint32 ves_icall_System_Threading_Interlocked_Increment_Int (gint32 *location)
+static void terminate_thread (gpointer key, gpointer value, gpointer user)
{
- return InterlockedIncrement (location);
+ MonoThread *thread=(MonoThread *)value;
+ guint32 self=GPOINTER_TO_UINT (user);
+
+ if(thread->tid!=self) {
+ /*TerminateThread (thread->handle, -1);*/
+ }
}
-gint64 ves_icall_System_Threading_Interlocked_Increment_Long (gint64 *location)
+void mono_thread_abort_all_other_threads (void)
{
- gint32 lowret;
- gint32 highret;
+ guint32 self=GetCurrentThreadId ();
- EnterCriticalSection(&interlocked_mutex);
+ EnterCriticalSection (&threads_mutex);
+#ifdef THREAD_DEBUG
+ g_message(G_GNUC_PRETTY_FUNCTION ":There are %d threads to abort",
+ mono_g_hash_table_size (threads));
+ mono_g_hash_table_foreach (threads, print_tids, NULL);
+#endif
- lowret = InterlockedIncrement((gint32 *) location);
- if (0 == lowret)
- highret = InterlockedIncrement((gint32 *) location + 1);
- else
- highret = *((gint32 *) location + 1);
+ mono_g_hash_table_foreach (threads, terminate_thread,
+ GUINT_TO_POINTER (self));
+
+ LeaveCriticalSection (&threads_mutex);
+}
- LeaveCriticalSection(&interlocked_mutex);
+static int static_data_idx = 0;
+static int static_data_offset = 0;
+#define NUM_STATIC_DATA_IDX 8
+static const int static_data_size [NUM_STATIC_DATA_IDX] = {
+ 1024, 4096, 16384, 65536, 262144, 1048576, 4194304, 16777216
+};
- return (gint64) highret << 32 | (gint64) lowret;
+static void
+thread_alloc_static_data (MonoThread *thread, guint32 offset)
+{
+ guint idx = (offset >> 24) - 1;
+ int i;
+
+ if (!thread->static_data) {
+ thread->static_data = GC_MALLOC (static_data_size [0]);
+ thread->static_data [0] = thread->static_data;
+ }
+ for (i = 1; i < idx; ++i) {
+ if (thread->static_data [i])
+ continue;
+ thread->static_data [i] = GC_MALLOC (static_data_size [i]);
+ }
+
}
-gint32 ves_icall_System_Threading_Interlocked_Decrement_Int(gint32 *location)
+/*
+ * ensure thread static fields already allocated are valid for thread
+ * This function is called when a thread is created or on thread attach.
+ */
+static void
+thread_adjust_static_data (MonoThread *thread)
{
- return InterlockedDecrement(location);
+ guint32 offset;
+
+ EnterCriticalSection (&threads_mutex);
+ if (static_data_offset || static_data_idx > 0) {
+ /* get the current allocated size */
+ offset = static_data_offset | ((static_data_idx + 1) << 24);
+ thread_alloc_static_data (thread, offset);
+ }
+ LeaveCriticalSection (&threads_mutex);
}
-gint64 ves_icall_System_Threading_Interlocked_Decrement_Long(gint64 * location)
+static void
+alloc_thread_static_data_helper (gpointer key, gpointer value, gpointer user)
{
- gint32 lowret;
- gint32 highret;
+ MonoThread *thread = value;
+ guint32 offset = GPOINTER_TO_UINT (user);
+
+ thread_alloc_static_data (thread, offset);
+}
- EnterCriticalSection(&interlocked_mutex);
+/*
+ * The offset for a thread static variable is composed of two parts:
+ * an index in the array of chunks of memory for the thread (thread->static_data)
+ * and an offset in that chunk of mem. This allows allocating less memory in the
+ * common case.
+ */
+guint32
+mono_threads_alloc_static_data (guint32 size, guint32 align)
+{
+ guint32 offset;
+
+ EnterCriticalSection (&threads_mutex);
- lowret = InterlockedDecrement((gint32 *) location);
- if (-1 == lowret)
- highret = InterlockedDecrement((gint32 *) location + 1);
- else
- highret = *((gint32 *) location + 1);
+ if (!static_data_idx && !static_data_offset) {
+ /*
+ * we use the first chunk of the first allocation also as
+ * an array for the rest of the data
+ */
+ static_data_offset = sizeof (gpointer) * NUM_STATIC_DATA_IDX;
+ }
+ static_data_offset += align - 1;
+ static_data_offset &= ~(align - 1);
+ if (static_data_offset + size >= static_data_size [static_data_idx]) {
+ static_data_idx ++;
+ g_assert (size <= static_data_size [static_data_idx]);
+ /*
+ * massive unloading and reloading of domains with thread-static
+ * data may eventually exceed the allocated storage...
+ * Need to check what the MS runtime does in that case.
+ * Note that for each appdomain, we need to allocate a separate
+ * thread data slot for security reasons. We could keep track
+ * of the slots per-domain and when the domain is unloaded
+ * out the slots on a sort of free list.
+ */
+ g_assert (static_data_idx < NUM_STATIC_DATA_IDX);
+ static_data_offset = 0;
+ }
+ offset = static_data_offset | ((static_data_idx + 1) << 24);
+ static_data_offset += size;
+
+ mono_g_hash_table_foreach (threads, alloc_thread_static_data_helper, GUINT_TO_POINTER (offset));
- LeaveCriticalSection(&interlocked_mutex);
+ LeaveCriticalSection (&threads_mutex);
+ return offset;
+}
- return (gint64) highret << 32 | (gint64) lowret;
+gpointer
+mono_threads_get_static_data (guint32 offset)
+{
+ MonoThread *thread = mono_thread_current ();
+ int idx = offset >> 24;
+
+ return ((char*) thread->static_data [idx - 1]) + (offset & 0xffffff);
}
-gint32 ves_icall_System_Threading_Interlocked_Exchange_Int(gint32 *location1, gint32 value)
+#ifdef WITH_INCLUDED_LIBGC
+
+static void gc_stop_world (gpointer key, gpointer value, gpointer user)
{
- return InterlockedExchange(location1, value);
+ MonoThread *thread=(MonoThread *)value;
+ guint32 self=GPOINTER_TO_UINT (user);
+
+#ifdef LIBGC_DEBUG
+ g_message (G_GNUC_PRETTY_FUNCTION ": %d - %d", self, thread->tid);
+#endif
+
+ if(thread->tid==self)
+ return;
+
+ SuspendThread (thread->handle);
}
-MonoObject * ves_icall_System_Threading_Interlocked_Exchange_Object(MonoObject **location1, MonoObject *value)
+void mono_gc_stop_world (void)
{
- return (MonoObject *) InterlockedExchangePointer((gpointer *) location1, value);
+ guint32 self=GetCurrentThreadId ();
+
+#ifdef LIBGC_DEBUG
+ g_message (G_GNUC_PRETTY_FUNCTION ": %d - %p", self, threads);
+#endif
+
+ EnterCriticalSection (&threads_mutex);
+
+ if (threads != NULL)
+ mono_g_hash_table_foreach (threads, gc_stop_world, GUINT_TO_POINTER (self));
+
+ LeaveCriticalSection (&threads_mutex);
}
-gfloat ves_icall_System_Threading_Interlocked_Exchange_Single(gfloat *location1, gfloat value)
+static void gc_start_world (gpointer key, gpointer value, gpointer user)
{
- return (gfloat) InterlockedExchange((gint32 *) location1, (gint32) value);
+ MonoThread *thread=(MonoThread *)value;
+ guint32 self=GPOINTER_TO_UINT (user);
+
+#ifdef LIBGC_DEBUG
+ g_message (G_GNUC_PRETTY_FUNCTION ": %d - %d", self, thread->tid);
+#endif
+
+ if(thread->tid==self)
+ return;
+
+ ResumeThread (thread->handle);
}
-gint32 ves_icall_System_Threading_Interlocked_CompareExchange_Int(gint32 *location1, gint32 value, gint32 comparand)
+void mono_gc_start_world (void)
{
- return InterlockedCompareExchange(location1, value, comparand);
+ guint32 self=GetCurrentThreadId ();
+
+#ifdef LIBGC_DEBUG
+ g_message (G_GNUC_PRETTY_FUNCTION ": %d - %p", self, threads);
+#endif
+
+ EnterCriticalSection (&threads_mutex);
+
+ if (threads != NULL)
+ mono_g_hash_table_foreach (threads, gc_start_world, GUINT_TO_POINTER (self));
+
+ LeaveCriticalSection (&threads_mutex);
}
-MonoObject * ves_icall_System_Threading_Interlocked_CompareExchange_Object(MonoObject **location1, MonoObject *value, MonoObject *comparand)
+static void gc_push_all_stacks (gpointer key, gpointer value, gpointer user)
{
- return (MonoObject *) InterlockedCompareExchangePointer((gpointer *) location1, value, comparand);
+ MonoThread *thread=(MonoThread *)value;
+ guint32 *selfp=(guint32 *)user, self = *selfp;
+
+#ifdef LIBGC_DEBUG
+ g_message (G_GNUC_PRETTY_FUNCTION ": %d - %d - %p", self, thread->tid, thread->stack_ptr);
+#endif
+
+ if(thread->tid==self) {
+#ifdef LIBGC_DEBUG
+ g_message (G_GNUC_PRETTY_FUNCTION ": %p - %p", selfp, thread->stack_ptr);
+#endif
+ GC_push_all_stack (selfp, thread->stack_ptr);
+ return;
+ }
+
+#ifdef PLATFORM_WIN32
+ GC_win32_push_thread_stack (thread->handle, thread->stack_ptr);
+#else
+ mono_wapi_push_thread_stack (thread->handle, thread->stack_ptr);
+#endif
}
-gfloat ves_icall_System_Threading_Interlocked_CompareExchange_Single(gfloat *location1, gfloat value, gfloat comparand)
+void mono_gc_push_all_stacks (void)
{
- return (gfloat) InterlockedCompareExchange((gint32 *) location1, (gint32) value, (gint32) comparand);
+ guint32 self=GetCurrentThreadId ();
+
+#ifdef LIBGC_DEBUG
+ g_message (G_GNUC_PRETTY_FUNCTION ": %d - %p", self, threads);
+#endif
+
+ EnterCriticalSection (&threads_mutex);
+
+ if (threads != NULL)
+ mono_g_hash_table_foreach (threads, gc_push_all_stacks, &self);
+
+ LeaveCriticalSection (&threads_mutex);
}
+
+#endif /* WITH_INCLUDED_LIBGC */
projects / mono.git / blobdiff