/* src/threads/native/threads.h - native threads header
- Copyright (C) 1996-2005, 2006, 2007 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.
- $Id: threads.h 7338 2007-02-13 00:17:22Z twisti $
-
*/
/* forward typedefs ***********************************************************/
-typedef struct threadobject threadobject;
-typedef union threads_table_entry_t threads_table_entry_t;
-typedef struct threads_table_t threads_table_t;
+typedef struct threadobject threadobject;
#include "config.h"
#include "mm/memory.h"
#include "native/jni.h"
-#include "native/include/java_lang_Thread.h"
+#include "native/localref.h"
#include "threads/native/lock.h"
#include "vm/global.h"
+#if defined(ENABLE_GC_CACAO)
+# include "vm/jit/replace.h"
+#endif
+
#include "vm/jit/stacktrace.h"
#if defined(ENABLE_INTRP)
#endif /* defined(HAVE___THREAD) */
-/* threads_table_entry_t *******************************************************
-
- An entry in the global threads table.
-
-*******************************************************************************/
-
-union threads_table_entry_t {
- threadobject *thread; /* an existing thread */
- ptrint nextfree; /* next free index */
-};
-
-
-/* threads_table_t *************************************************************
-
- Struct for the global threads table.
-
-*******************************************************************************/
-
-struct threads_table_t {
- threads_table_entry_t *table; /* the table, threads[0] is the head */
- /* of the free list. Real entries */
- /* start at threads[1]. */
- s4 size; /* current size of the table */
-};
-
-
/* threadobject ****************************************************************
- Every java.lang.Thread object is actually an instance of this
- structure.
+ Struct holding thread local variables.
*******************************************************************************/
#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 */
-struct threadobject {
- java_lang_Thread o; /* the java.lang.Thread object */
-
- lock_execution_env_t ee; /* data for the lock implementation */
- threadobject *next; /* next thread in list, or self */
- threadobject *prev; /* prev thread in list, or self */
+struct threadobject {
+ java_object_t *object; /* link to java.lang.Thread object */
ptrint thinlock; /* pre-computed thin lock value */
s4 index; /* thread index, starting with 1 */
u4 flags; /* flag field */
+ u4 state; /* state field */
pthread_t tid; /* pthread id */
mach_port_t mach_thread; /* Darwin thread id */
#endif
- pthread_mutex_t joinmutex;
- pthread_cond_t joincond;
+ /* 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 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 sleeping;
+ bool suspended; /* is this thread suspended? */
+ s4 suspend_reason; /* reason for suspending */
+
u1 *pc; /* current PC (used for profiling) */
- java_objectheader *_exceptionptr; /* current exception */
- stackframeinfo *_stackframeinfo; /* current native stackframeinfo */
+ java_object_t *_exceptionptr; /* current exception */
+ stackframeinfo_t *_stackframeinfo; /* current native stackframeinfo */
localref_table *_localref_table; /* JNI local references */
#if defined(ENABLE_INTRP)
Cell *_global_sp; /* stack pointer for interpreter */
#endif
+#if defined(ENABLE_GC_CACAO)
+ bool gc_critical; /* indicates a critical section */
+
+ sourcestate_t *ss;
+ executionstate_t *es;
+#endif
+
dumpinfo_t dumpinfo; /* dump memory info structure */
+
+#if defined(ENABLE_DEBUG_FILTER)
+ u2 filterverbosecallctr[2]; /* counters for verbose call filter */
+#endif
+
+#if !defined(NDEBUG)
+ s4 tracejavacallindent;
+ u4 tracejavacallcount;
+#endif
+
+ listnode_t linkage; /* threads-list */
+ listnode_t linkage_free; /* free-list */
};
-/* exception pointer **********************************************************/
+/* native-world flags *********************************************************/
+
+#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
+
-#define exceptionptr (&(THREADOBJECT->_exceptionptr))
+/* counter for verbose call filter ********************************************/
+
+#if defined(ENABLE_DEBUG_FILTER)
+# define FILTERVERBOSECALLCTR (THREADOBJECT->filterverbosecallctr)
+#endif
+/* state for trace java call **************************************************/
-/* stackframeinfo *************************************************************/
+#if !defined(NDEBUG)
+# define TRACEJAVACALLINDENT (THREADOBJECT->tracejavacallindent)
+# define TRACEJAVACALLCOUNT (THREADOBJECT->tracejavacallcount)
+#endif
-#define STACKFRAMEINFO (&(THREADOBJECT->_stackframeinfo))
+/* inline functions ***********************************************************/
-/* variables ******************************************************************/
+inline static stackframeinfo_t *threads_get_current_stackframeinfo(void)
+{
+ return THREADOBJECT->_stackframeinfo;
+}
-extern threadobject *mainthreadobj;
+inline static void threads_set_current_stackframeinfo(stackframeinfo_t *sfi)
+{
+ THREADOBJECT->_stackframeinfo = sfi;
+}
/* functions ******************************************************************/
threadobject *threads_get_current_threadobject(void);
-void threads_preinit(void);
-bool threads_init(void);
-
void threads_start_thread(threadobject *thread, functionptr function);
void threads_set_thread_priority(pthread_t tid, int priority);
bool threads_attach_current_thread(JavaVMAttachArgs *vm_aargs, bool isdaemon);
bool threads_detach_thread(threadobject *thread);
+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_yield(void);
-bool threads_wait_with_timeout_relative(threadobject *t, 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);
-void threads_cast_stopworld(void);
-void threads_cast_startworld(void);
-
-void threads_dump(void);
+#if !defined(DISABLE_GC)
+void threads_stopworld(void);
+void threads_startworld(void);
+#endif
#endif /* _THREADS_H */
projects / cacao.git / blobdiff