/* src/threads/native/threads.h - native threads header
- Copyright (C) 1996-2005, 2006 R. Grafl, A. Krall, C. Kruegel,
- C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
- E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
- J. Wenninger, Institut f. Computersprachen - TU Wien
+ Copyright (C) 1996-2005, 2006, 2007, 2008
+ CACAOVM - Verein zur Foerderung der freien virtuellen Maschine CACAO
This file is part of CACAO.
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301, USA.
- Contact: cacao@cacaojvm.org
-
- Authors: Stefan Ring
-
- Changes: Christian Thalinger
- Edwin Steiner
-
- $Id: threads.h 4909 2006-05-13 23:10:21Z edwin $
-
*/
#ifndef _THREADS_H
#define _THREADS_H
+/* forward typedefs ***********************************************************/
+
+typedef struct threadobject threadobject;
+
+
#include "config.h"
#include <pthread.h>
-#include <semaphore.h>
#include <ucontext.h>
#include "vm/types.h"
-#include "config.h"
-#include "vm/types.h"
-
#include "mm/memory.h"
#include "native/jni.h"
-#include "native/include/java_lang_Object.h" /* required by java/lang/VMThread*/
-#include "native/include/java_lang_Thread.h"
-#include "native/include/java_lang_VMThread.h"
-#include "vm/global.h"
+#include "native/localref.h"
#include "threads/native/lock.h"
-#if defined(__DARWIN__)
-#include <mach/mach.h>
+#include "vm/global.h"
-/* We need to emulate recursive mutexes. */
-#define MUTEXSIM
+#if defined(ENABLE_GC_CACAO)
+# include "vm/jit/replace.h"
#endif
+#include "vm/jit/stacktrace.h"
-/* forward typedefs ***********************************************************/
+#if defined(ENABLE_INTRP)
+#include "vm/jit/intrp/intrp.h"
+#endif
-typedef struct nativethread nativethread;
-typedef struct threadobject threadobject;
+#if defined(__DARWIN__)
+# include <mach/mach.h>
+
+typedef struct {
+ pthread_mutex_t mutex;
+ pthread_cond_t cond;
+ int value;
+} sem_t;
+
+#else
+# include <semaphore.h>
+#endif
/* current threadobject *******************************************************/
#define THREADSPECIFIC __thread
#define THREADOBJECT threads_current_threadobject
-#define THREADINFO (&threads_current_threadobject->info)
extern __thread threadobject *threads_current_threadobject;
#else /* defined(HAVE___THREAD) */
#define THREADSPECIFIC
-#define THREADOBJECT pthread_getspecific(threads_current_threadobject_key)
-#define THREADINFO (&((threadobject*) pthread_getspecific(threads_current_threadobject_key))->info)
+#define THREADOBJECT \
+ ((threadobject *) pthread_getspecific(threads_current_threadobject_key))
extern pthread_key_t threads_current_threadobject_key;
#endif /* defined(HAVE___THREAD) */
-/* nativethread ****************************************************************
+/* threadobject ****************************************************************
- XXX
+ Struct holding thread local variables.
*******************************************************************************/
-struct nativethread {
- threadobject *next;
- threadobject *prev;
- java_objectheader *_exceptionptr;
- stackframeinfo *_stackframeinfo;
- localref_table *_localref_table; /* JNI local references */
-#if defined(ENABLE_INTRP)
- void *_global_sp;
-#endif
- pthread_t tid;
-#if defined(__DARWIN__)
- mach_port_t mach_thread;
-#endif
- pthread_mutex_t joinMutex;
- pthread_cond_t joinCond;
-};
+#define THREAD_FLAG_JAVA 0x01 /* a normal Java thread */
+#define THREAD_FLAG_INTERNAL 0x02 /* CACAO internal thread */
+#define THREAD_FLAG_DAEMON 0x04 /* daemon thread */
+#define THREAD_FLAG_IN_NATIVE 0x08 /* currently executing native code */
+#define SUSPEND_REASON_JNI 1 /* suspended from JNI */
+#define SUSPEND_REASON_STOPWORLD 2 /* suspended from stop-thw-world */
-/* threadobject ****************************************************************
- Every java.lang.VMThread object is actually an instance of this
- structure.
+struct threadobject {
+ java_object_t *object; /* link to java.lang.Thread object */
-*******************************************************************************/
+ ptrint thinlock; /* pre-computed thin lock value */
-struct threadobject {
- java_lang_VMThread o;
- nativethread info; /* some general pthreads stuff */
- lock_execution_env_t ee; /* contains our lock record pool */
+ s4 index; /* thread index, starting with 1 */
+ u4 flags; /* flag field */
+ u4 state; /* state field */
+
+ pthread_t tid; /* pthread id */
+
+#if defined(__DARWIN__)
+ mach_port_t mach_thread; /* Darwin thread id */
+#endif
+
+ /* for the sable tasuki lock extension */
+ bool flc_bit;
+ struct threadobject *flc_list; /* FLC list head for this thread */
+ struct threadobject *flc_next; /* next pointer for FLC list */
+ java_handle_t *flc_object;
+ pthread_mutex_t flc_lock; /* controlling access to these fields */
+ pthread_cond_t flc_cond;
/* these are used for the wait/notify implementation */
- pthread_mutex_t waitLock;
- pthread_cond_t waitCond;
+ pthread_mutex_t waitmutex;
+ pthread_cond_t waitcond;
+
+ pthread_mutex_t suspendmutex; /* lock before suspending this thread */
+ pthread_cond_t suspendcond; /* notify to resume this thread */
+
bool interrupted;
bool signaled;
- bool isSleeping;
+ bool sleeping;
- dumpinfo dumpinfo; /* dump memory info structure */
-};
+ bool suspended; /* is this thread suspended? */
+ s4 suspend_reason; /* reason for suspending */
+ u1 *pc; /* current PC (used for profiling) */
-/* variables ******************************************************************/
+ java_object_t *_exceptionptr; /* current exception */
+ stackframeinfo_t *_stackframeinfo; /* current native stackframeinfo */
+ localref_table *_localref_table; /* JNI local references */
-extern threadobject *mainthreadobj;
+#if defined(ENABLE_INTRP)
+ Cell *_global_sp; /* stack pointer for interpreter */
+#endif
+#if defined(ENABLE_GC_CACAO)
+ bool gc_critical; /* indicates a critical section */
-/* functions ******************************************************************/
+ sourcestate_t *ss;
+ executionstate_t *es;
+#endif
-void threads_sem_init(sem_t *sem, bool shared, int value);
-void threads_sem_wait(sem_t *sem);
-void threads_sem_post(sem_t *sem);
+ dumpinfo_t dumpinfo; /* dump memory info structure */
-threadobject *threads_get_current_threadobject(void);
+#if defined(ENABLE_DEBUG_FILTER)
+ u2 filterverbosecallctr[2]; /* counters for verbose call filter */
+#endif
-void threads_preinit(void);
-bool threads_init(u1 *stackbottom);
+#if !defined(NDEBUG)
+ s4 tracejavacallindent;
+ u4 tracejavacallcount;
+#endif
-void threads_init_threadobject(java_lang_VMThread *);
+ listnode_t linkage; /* threads-list */
+ listnode_t linkage_free; /* free-list */
+};
-void threads_start_thread(java_lang_Thread *t, functionptr function);
-void threads_join_all_threads(void);
+/* native-world flags *********************************************************/
-void threads_sleep(s8 millis, s4 nanos);
-void threads_yield(void);
+#if defined(ENABLE_GC_CACAO)
+# define THREAD_NATIVEWORLD_ENTER THREADOBJECT->flags |= THREAD_FLAG_IN_NATIVE
+# define THREAD_NATIVEWORLD_EXIT THREADOBJECT->flags &= ~THREAD_FLAG_IN_NATIVE
+#else
+# define THREAD_NATIVEWORLD_ENTER /*nop*/
+# define THREAD_NATIVEWORLD_EXIT /*nop*/
+#endif
-bool threads_wait_with_timeout_relative(threadobject *t, s8 millis, s4 nanos);
-void threads_interrupt_thread(java_lang_VMThread *);
-bool threads_check_if_interrupted_and_reset(void);
-bool threads_thread_has_been_interrupted(java_lang_VMThread *);
+/* counter for verbose call filter ********************************************/
-#if defined(ENABLE_JVMTI)
-void threads_set_current_threadobject(threadobject *thread);
+#if defined(ENABLE_DEBUG_FILTER)
+# define FILTERVERBOSECALLCTR (THREADOBJECT->filterverbosecallctr)
#endif
-void threads_java_lang_Thread_set_priority(java_lang_Thread *t, s4 priority);
+/* state for trace java call **************************************************/
-void threads_cast_stopworld(void);
-void threads_cast_startworld(void);
+#if !defined(NDEBUG)
+# define TRACEJAVACALLINDENT (THREADOBJECT->tracejavacallindent)
+# define TRACEJAVACALLCOUNT (THREADOBJECT->tracejavacallcount)
+#endif
-void threads_dump(void);
+/* inline functions ***********************************************************/
-/******************************************************************************/
-/* Recursive Mutex Implementation for Darwin */
-/******************************************************************************/
+inline static stackframeinfo_t *threads_get_current_stackframeinfo(void)
+{
+ return THREADOBJECT->_stackframeinfo;
+}
-#if defined(MUTEXSIM)
+inline static void threads_set_current_stackframeinfo(stackframeinfo_t *sfi)
+{
+ THREADOBJECT->_stackframeinfo = sfi;
+}
-/* We need this for older MacOSX (10.1.x) */
-typedef struct {
- pthread_mutex_t mutex;
- pthread_t owner;
- int count;
-} pthread_mutex_rec_t;
+/* functions ******************************************************************/
+
+void threads_sem_init(sem_t *sem, bool shared, int value);
+void threads_sem_wait(sem_t *sem);
+void threads_sem_post(sem_t *sem);
+
+threadobject *threads_get_current_threadobject(void);
+
+bool threads_init(void);
-void pthread_mutex_init_rec(pthread_mutex_rec_t *m);
-void pthread_mutex_destroy_rec(pthread_mutex_rec_t *m);
-void pthread_mutex_lock_rec(pthread_mutex_rec_t *m);
-void pthread_mutex_unlock_rec(pthread_mutex_rec_t *m);
+void threads_start_thread(threadobject *thread, functionptr function);
-#else /* !defined(MUTEXSIM) */
+void threads_set_thread_priority(pthread_t tid, int priority);
-#define pthread_mutex_lock_rec pthread_mutex_lock
-#define pthread_mutex_unlock_rec pthread_mutex_unlock
-#define pthread_mutex_rec_t pthread_mutex_t
+bool threads_attach_current_thread(JavaVMAttachArgs *vm_aargs, bool isdaemon);
+bool threads_detach_thread(threadobject *thread);
-#endif /* defined(MUTEXSIM) */
+bool threads_suspend_thread(threadobject *thread, s4 reason);
+void threads_suspend_ack(u1* pc, u1* sp);
+bool threads_resume_thread(threadobject *thread);
+
+void threads_join_all_threads(void);
+
+void threads_sleep(s8 millis, s4 nanos);
+
+void threads_wait_with_timeout_relative(threadobject *t, s8 millis, s4 nanos);
+
+void threads_thread_interrupt(threadobject *thread);
+bool threads_check_if_interrupted_and_reset(void);
+bool threads_thread_has_been_interrupted(threadobject *thread);
+
+#if !defined(DISABLE_GC)
+void threads_stopworld(void);
+void threads_startworld(void);
+#endif
#endif /* _THREADS_H */
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