#include "vm/types.h"
-#include "mm/memory.h"
+#include "mm/memory.hpp"
#if defined(ENABLE_GC_BOEHM)
/* We need to include Boehm's gc.h here for GC_register_my_thread and
#endif
#include "native/llni.h"
-#include "native/native.h"
+#include "native/native.hpp"
#include "threads/lock.hpp"
-#include "threads/threadlist.h"
+#include "threads/threadlist.hpp"
#include "threads/thread.hpp"
#include "vm/jit/builtin.hpp"
-#include "vm/class.h"
+#include "vm/class.hpp"
#include "vm/exceptions.hpp"
#include "vm/globals.hpp"
#include "vm/javaobjects.hpp"
-#include "vm/method.h"
+#include "vm/method.hpp"
#include "vm/options.h"
#include "vm/string.hpp"
#include "vm/utf8.h"
/* Get the main-thread (NOTE: The main thread is always the first
thread in the list). */
- t = threadlist_first();
+ t = ThreadList::get_main_thread();
/* The thread name. */
/* Lock the thread lists */
- threadlist_lock();
+ ThreadList::lock();
- index = threadlist_get_free_index();
+ index = ThreadList::get_free_thread_index();
/* Allocate a thread data structure. */
/* First, try to get one from the free-list. */
- t = threadlist_free_first();
+ t = ThreadList::get_free_thread();
if (t != NULL) {
- /* Remove from free list. */
-
- threadlist_free_remove(t);
-
/* Equivalent of MZERO on the else path */
threads_impl_thread_clear(t);
assert(index != 0);
t->index = index;
- t->thinlock = lock_pre_compute_thinlock(t->index);
+ t->thinlock = Lockword::pre_compute_thinlock(t->index);
t->flags = 0;
t->state = THREAD_STATE_NEW;
/* Add the thread to the thread list. */
- threadlist_add(t);
+ ThreadList::add_to_active_thread_list(t);
/* Unlock the thread lists. */
- threadlist_unlock();
+ ThreadList::unlock();
return t;
}
void thread_free(threadobject *t)
{
- /* Lock the thread lists. */
-
- threadlist_lock();
-
- /* Remove the thread from the thread-list. */
-
- threadlist_remove(t);
-
- /* Add the thread index to the free list. */
-
- threadlist_index_add(t->index);
-
/* Set the reference to the Java object to NULL. */
thread_set_object(t, NULL);
- /* Add the thread data structure to the free list. */
-
- threadlist_free_add(t);
-
- /* Unlock the thread lists. */
+ /* Release the thread. */
- threadlist_unlock();
+ ThreadList::release_thread(t);
}
#elif defined(WITH_JAVA_RUNTIME_LIBRARY_OPENJDK) || defined(WITH_JAVA_RUNTIME_LIBRARY_CLDC1_1)
/* FIXME: In OpenJDK and CLDC the name is a char[]. */
- java_chararray_t *name;
+ //java_chararray_t *name;
/* FIXME This prints to stdout. */
utf_display_printable_ascii(utf_null);
case THREAD_STATE_TIMED_WAITING:
printf(" waiting on condition");
break;
+ case THREAD_STATE_PARKED:
+ printf(" parked");
+ break;
+ case THREAD_STATE_TIMED_PARKED:
+ printf(" timed parked");
+ break;
case THREAD_STATE_TERMINATED:
printf(" terminated");
break;
}
+/**
+ * Set the current state of the given thread. This method should only
+ * be called while holding the threadlist-lock and after checking that
+ * the new state is valid. It is best to not call this method directly
+ * but call the specific setter methods below.
+ */
+static inline void thread_set_state(threadobject *t, int state)
+{
+ // Set the state of our internal threadobject.
+ t->state = state;
+
+#if defined(WITH_JAVA_RUNTIME_LIBRARY_OPENJDK)
+ // Set the state of the java.lang.Thread object.
+ java_lang_Thread thread(thread_get_object(t));
+ assert(thread.is_non_null());
+ thread.set_threadStatus(state);
+#endif
+}
+
+
/* thread_set_state_runnable ***************************************************
Set the current state of the given thread to THREAD_STATE_RUNNABLE.
{
/* Set the state inside a lock. */
- threadlist_lock();
+ ThreadList::lock();
if (t->state != THREAD_STATE_TERMINATED) {
- t->state = THREAD_STATE_RUNNABLE;
+ thread_set_state(t, THREAD_STATE_RUNNABLE);
DEBUGTHREADS("is RUNNABLE", t);
}
- threadlist_unlock();
+ ThreadList::unlock();
}
{
/* Set the state inside a lock. */
- threadlist_lock();
+ ThreadList::lock();
if (t->state != THREAD_STATE_TERMINATED) {
- t->state = THREAD_STATE_WAITING;
+ thread_set_state(t, THREAD_STATE_WAITING);
DEBUGTHREADS("is WAITING", t);
}
- threadlist_unlock();
+ ThreadList::unlock();
}
{
/* Set the state inside a lock. */
- threadlist_lock();
+ ThreadList::lock();
if (t->state != THREAD_STATE_TERMINATED) {
- t->state = THREAD_STATE_TIMED_WAITING;
+ thread_set_state(t, THREAD_STATE_TIMED_WAITING);
DEBUGTHREADS("is TIMED_WAITING", t);
}
- threadlist_unlock();
+ ThreadList::unlock();
+}
+
+
+/* thread_set_state_parked *****************************************************
+
+ Set the current state of the given thread to THREAD_STATE_PARKED.
+
+ NOTE: If the thread has already terminated, don't set the state.
+ This is important for threads_detach_thread.
+
+*******************************************************************************/
+
+void thread_set_state_parked(threadobject *t)
+{
+ /* Set the state inside a lock. */
+
+ ThreadList::lock();
+
+ if (t->state != THREAD_STATE_TERMINATED) {
+ thread_set_state(t, THREAD_STATE_PARKED);
+
+ DEBUGTHREADS("is PARKED", t);
+ }
+
+ ThreadList::unlock();
+}
+
+
+/* thread_set_state_timed_parked ***********************************************
+
+ Set the current state of the given thread to THREAD_STATE_TIMED_PARKED.
+
+ NOTE: If the thread has already terminated, don't set the state.
+ This is important for threads_detach_thread.
+
+*******************************************************************************/
+
+void thread_set_state_timed_parked(threadobject *t)
+{
+ /* Set the state inside a lock. */
+
+ ThreadList::lock();
+
+ if (t->state != THREAD_STATE_TERMINATED) {
+ thread_set_state(t, THREAD_STATE_TIMED_PARKED);
+
+ DEBUGTHREADS("is TIMED_PARKED", t);
+ }
+
+ ThreadList::unlock();
}
{
/* Set the state inside a lock. */
- threadlist_lock();
+ ThreadList::lock();
- t->state = THREAD_STATE_TERMINATED;
+ thread_set_state(t, THREAD_STATE_TERMINATED);
DEBUGTHREADS("is TERMINATED", t);
- threadlist_unlock();
+ ThreadList::unlock();
}
#elif defined(WITH_JAVA_RUNTIME_LIBRARY_OPENJDK)
/* XXX This is just a quick hack. */
- threadobject* t;
- bool equal;
-
- threadlist_lock();
-
- for (t = threadlist_first(); t != NULL; t = threadlist_next(t)) {
- LLNI_equals(t->object, h, equal);
-
- if (equal == true)
- break;
- }
-
- threadlist_unlock();
+ threadobject* t = ThreadList::get_thread_from_java_object(h);
#elif defined(WITH_JAVA_RUNTIME_LIBRARY_CLDC1_1)
- log_println("threads_get_thread: IMPLEMENT ME!");
+ log_println("thread_get_thread: IMPLEMENT ME!");
threadobject* t = NULL;
#else
case THREAD_STATE_BLOCKED:
case THREAD_STATE_WAITING:
case THREAD_STATE_TIMED_WAITING:
+ case THREAD_STATE_PARKED:
+ case THREAD_STATE_TIMED_PARKED:
return true;
default:
return false;
}
+/* thread_is_interrupted *******************************************************
-/* threads_dump ****************************************************************
+ Check if the given thread has been interrupted.
+
+ ARGUMENTS:
+ t ... the thread to check
- Dumps info for all threads running in the JVM. This function is
- called when SIGQUIT (<ctrl>-\) is sent to CACAO.
+ RETURN VALUE:
+ true, if the given thread had been interrupted
*******************************************************************************/
-void threads_dump(void)
+bool thread_is_interrupted(threadobject *t)
{
- threadobject *t;
-
- /* XXX we should stop the world here */
-
- /* Lock the thread lists. */
-
- threadlist_lock();
-
- printf("Full thread dump CACAO "VERSION":\n");
+ /* We need the mutex because classpath will call this function when
+ a blocking system call is interrupted. The mutex ensures that it will
+ see the correct value for the interrupted flag. */
- /* iterate over all started threads */
-
- for (t = threadlist_first(); t != NULL; t = threadlist_next(t)) {
- /* ignore threads which are in state NEW */
- if (t->state == THREAD_STATE_NEW)
- continue;
-
-#if defined(ENABLE_GC_CACAO)
- /* Suspend the thread. */
- /* XXX Is the suspend reason correct? */
-
- if (threads_suspend_thread(t, SUSPEND_REASON_JNI) == false)
- vm_abort("threads_dump: threads_suspend_thread failed");
-#endif
+ t->waitmutex->lock();
+ bool interrupted = t->interrupted;
+ t->waitmutex->unlock();
- /* Print thread info. */
-
- printf("\n");
- thread_print_info(t);
- printf("\n");
+ return interrupted;
+}
- /* Print trace of thread. */
- stacktrace_print_of_thread(t);
+/* thread_set_interrupted ******************************************************
-#if defined(ENABLE_GC_CACAO)
- /* Resume the thread. */
+ Set the interrupted flag to the given value.
- if (threads_resume_thread(t) == false)
- vm_abort("threads_dump: threads_resume_thread failed");
-#endif
- }
+ ARGUMENTS:
+ interrupted ... value to set
- /* Unlock the thread lists. */
+*******************************************************************************/
- threadlist_unlock();
+void thread_set_interrupted(threadobject *t, bool interrupted)
+{
+ t->waitmutex->lock();
+ t->interrupted = interrupted;
+ t->waitmutex->unlock();
}
+
/*
* These are local overrides for various environment variables in Emacs.
* Please do not remove this and leave it at the end of the file, where
projects / cacao.git / blobdiff