-#ifndef _NATIVETHREAD_H
-#define _NATIVETHREAD_H
+/* 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
+
+ This file is part of CACAO.
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2, or (at
+ your option) any later version.
+
+ This program is distributed in the hope that it will be useful, but
+ WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.
+
+ Contact: cacao@cacaojvm.org
+
+ Authors: Stefan Ring
+
+ Changes: Christian Thalinger
+
+ $Id: threads.h 4661 2006-03-21 00:04:59Z motse $
+
+*/
+
+
+#ifndef _THREADS_H
+#define _THREADS_H
+
+#include "config.h"
+
+#include <pthread.h>
#include <semaphore.h>
+#include <ucontext.h>
+
+#include "vm/types.h"
+
+#include "config.h"
+#include "vm/types.h"
-#include "jni.h"
-#include "nat/java_lang_Object.h"
-#include "nat/java_lang_Throwable.h"
-#include "nat/java_lang_Thread.h"
-#include "nat/java_lang_VMThread.h"
-#include "toolbox/memory.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"
#if defined(__DARWIN__)
#include <mach/mach.h>
#define MUTEXSIM
#endif
-struct _threadobject;
+#if defined(HAVE___THREAD)
-typedef struct monitorLockRecord monitorLockRecord;
+#define THREADSPECIFIC __thread
+#define THREADOBJECT threadobj
+#define THREADINFO (&threadobj->info)
-struct monitorLockRecord {
- struct _threadobject *ownerThread;
- java_objectheader *o;
- int lockCount;
- monitorLockRecord *nextFree;
- int queuers;
- monitorLockRecord *waiter;
- monitorLockRecord *incharge;
- bool waiting;
- sem_t queueSem;
- pthread_mutex_t resolveLock;
- pthread_cond_t resolveWait;
-};
+extern __thread threadobject *threadobj;
+#else /* defined(HAVE___THREAD) */
-struct _lockRecordPool;
+#define THREADSPECIFIC
+#define THREADOBJECT pthread_getspecific(tkey_threadinfo)
+#define THREADINFO (&((threadobject*) pthread_getspecific(tkey_threadinfo))->info)
-typedef struct {
- struct _lockRecordPool *next;
- int size;
-} lockRecordPoolHeader;
+extern pthread_key_t tkey_threadinfo;
-typedef struct _lockRecordPool {
- lockRecordPoolHeader header;
- monitorLockRecord lr[1];
-} lockRecordPool;
+#endif /* defined(HAVE___THREAD) */
-/* Monitor lock implementation */
-typedef struct {
+
+/* typedefs *******************************************************************/
+
+typedef struct ExecEnvironment ExecEnvironment;
+typedef struct nativethread nativethread;
+typedef struct threadobject threadobject;
+typedef struct monitorLockRecord monitorLockRecord;
+typedef struct lockRecordPoolHeader lockRecordPoolHeader;
+typedef struct lockRecordPool lockRecordPool;
+typedef java_lang_Thread thread;
+
+
+/* ExecEnvironment *************************************************************
+
+ Monitor lock implementation
+
+*******************************************************************************/
+
+struct ExecEnvironment {
monitorLockRecord *firstLR;
- lockRecordPool *lrpool;
- int numlr;
-} ExecEnvironment;
+ lockRecordPool *lrpool;
+ int numlr;
+};
-typedef struct {
- struct _threadobject *next, *prev;
+
+struct nativethread {
+ threadobject *next;
+ threadobject *prev;
java_objectheader *_exceptionptr;
- methodinfo *_threadrootmethod;
- void *_stackframeinfo;
- pthread_t tid;
+ void *_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;
+ mach_port_t mach_thread;
#endif
- pthread_mutex_t joinMutex;
- pthread_cond_t joinCond;
-} nativethread;
-
-typedef java_lang_Thread thread;
+ pthread_mutex_t joinMutex;
+ pthread_cond_t joinCond;
+};
/* threadobject ****************************************************************
- TODO
+ Every java.lang.VMThread object is actually an instance of this
+ structure.
*******************************************************************************/
-typedef struct _threadobject {
+struct threadobject {
java_lang_VMThread o;
- nativethread info;
- ExecEnvironment ee;
+ nativethread info; /* some general pthreads stuff */
+ ExecEnvironment ee; /* contains our lock record pool */
+ /* these are used for the wait/notify implementation */
pthread_mutex_t waitLock;
pthread_cond_t waitCond;
bool interrupted;
bool isSleeping;
dumpinfo dumpinfo; /* dump memory info structure */
-} threadobject;
+};
+
+/* monitorLockRecord ***********************************************************
+
+ This is the really interesting stuff.
+ See handbook for a detailed description.
+
+*******************************************************************************/
+
+struct monitorLockRecord {
+ threadobject *ownerThread;
+ java_objectheader *o;
+ s4 lockCount;
+ monitorLockRecord *nextFree;
+ s4 queuers;
+ monitorLockRecord *waiter;
+ monitorLockRecord *incharge;
+ java_objectheader *waiting;
+ sem_t queueSem;
+ pthread_mutex_t resolveLock;
+ pthread_cond_t resolveWait;
+};
+
+
+struct lockRecordPoolHeader {
+ lockRecordPool *next;
+ int size;
+};
+
+struct lockRecordPool {
+ lockRecordPoolHeader header;
+ monitorLockRecord lr[1];
+};
monitorLockRecord *monitorEnter(threadobject *, java_objectheader *);
bool monitorExit(threadobject *, java_objectheader *);
bool threadHoldsLock(threadobject *t, java_objectheader *o);
-void signal_cond_for_object (java_objectheader *obj);
-void broadcast_cond_for_object (java_objectheader *obj);
-void wait_cond_for_object (java_objectheader *obj, s8 time, s4 nanos);
-void initThreadsEarly();
-void initThreads(u1 *stackbottom);
+void wait_cond_for_object(java_objectheader *o, s8 millis, s4 nanos);
+void signal_cond_for_object(java_objectheader *o);
+void broadcast_cond_for_object(java_objectheader *o);
+
+void *thread_getself(void);
+
+void threads_preinit(void);
+bool threads_init(u1 *stackbottom);
+
void initObjectLock(java_objectheader *);
+monitorLockRecord *get_dummyLR(void);
void initLocks();
void initThread(java_lang_VMThread *);
-void startThread(thread *t);
+
+/* start a thread */
+void threads_start_thread(thread *t, functionptr function);
+
void joinAllThreads();
-void sleepThread(s8 millis, s4 nanos);
+void thread_sleep(s8 millis, s4 nanos);
void yieldThread();
void setPriorityThread(thread *t, s4 priority);
bool interruptedThread();
bool isInterruptedThread(java_lang_VMThread *);
-#if !defined(HAVE___THREAD)
-extern pthread_key_t tkey_threadinfo;
-#define THREADOBJECT ((java_lang_VMThread*) pthread_getspecific(tkey_threadinfo))
-#define THREADINFO (&((threadobject*) pthread_getspecific(tkey_threadinfo))->info)
-#else
-extern __thread threadobject *threadobj;
-#define THREADOBJECT ((java_lang_VMThread*) threadobj)
-#define THREADINFO (&threadobj->info)
+#if defined(ENABLE_JVMTI)
+void setthreadobject(threadobject *thread);
#endif
-#include "builtin.h"
/* This must not be changed, it is used in asm_criticalsections */
typedef struct {
- u1 *mcodebegin, *mcodeend, *mcoderestart;
+ u1 *mcodebegin;
+ u1 *mcodeend;
+ u1 *mcoderestart;
} threadcritnode;
void thread_registercritical(threadcritnode *);
u1 *thread_checkcritical(u1*);
extern volatile int stopworldwhere;
+extern threadobject *mainthreadobj;
+
+extern pthread_mutex_t pool_lock;
+extern lockRecordPool *global_pool;
+
void cast_stopworld();
void cast_startworld();
-#endif /* _NATIVETHREAD_H */
+/* dumps all threads */
+void threads_dump(void);
+
+/* this is a machine dependent functions (src/vm/jit/$(ARCH_DIR)/md.c) */
+void thread_restartcriticalsection(ucontext_t *);
+
+#endif /* _THREADS_H */
/*
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