-/* threads/native/threads.h - native threads header
+/* src/threads/native/threads.h - native threads header
Copyright (C) 1996-2005 R. Grafl, A. Krall, C. Kruegel, C. Oates,
R. Obermaisser, M. Platter, M. Probst, S. Ring, E. Steiner,
Authors: Stefan Ring
- $Id: threads.h 1735 2004-12-07 14:33:27Z twisti $
+ Changes: Christian Thalinger
+
+ $Id: threads.h 3830 2005-12-01 23:07:33Z twisti $
*/
#ifndef _THREADS_H
#define _THREADS_H
+#include <pthread.h>
#include <semaphore.h>
+#include <ucontext.h>
+
+#include "config.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"
#if defined(__DARWIN__)
#include <mach/mach.h>
#endif
+#if defined(HAVE___THREAD)
+
+#define THREADSPECIFIC __thread
+#define THREADOBJECT ((java_lang_VMThread*) threadobj)
+#define THREADINFO (&threadobj->info)
+
+extern __thread threadobject *threadobj;
+
+#else /* defined(HAVE___THREAD) */
+
+#define THREADSPECIFIC
+#define THREADOBJECT ((java_lang_VMThread*) pthread_getspecific(tkey_threadinfo))
+#define THREADINFO (&((threadobject*) pthread_getspecific(tkey_threadinfo))->info)
+
+extern pthread_key_t tkey_threadinfo;
+
+#endif /* defined(HAVE___THREAD) */
+
+
/* typedefs *******************************************************************/
typedef struct ExecEnvironment ExecEnvironment;
threadobject *next;
threadobject *prev;
java_objectheader *_exceptionptr;
- methodinfo *_threadrootmethod;
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;
/* threadobject ****************************************************************
- DOCUMENT ME!
+ Every java.lang.VMThread object is actually an instance of this structure.
*******************************************************************************/
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;
dumpinfo dumpinfo; /* dump memory info structure */
};
+/* monitorLockRecord ***********************************************************
+
+ This is the really interesting stuff.
+ See handbook for a detailed description.
+
+*******************************************************************************/
struct monitorLockRecord {
threadobject *ownerThread;
java_objectheader *o;
- int lockCount;
+ s4 lockCount;
monitorLockRecord *nextFree;
- int queuers;
+ s4 queuers;
monitorLockRecord *waiter;
monitorLockRecord *incharge;
bool waiting;
};
-
struct lockRecordPoolHeader {
lockRecordPool *next;
int size;
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 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 *thread_getself(void);
+
+void threads_preinit(void);
+bool threads_init(u1 *stackbottom);
-void initThreadsEarly();
-void initThreads(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);
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)
-#endif
-
-
/* This must not be changed, it is used in asm_criticalsections */
typedef struct {
u1 *mcodebegin;
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();
+/* 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 */