src/threads/native/threads.h

   1 /* src/threads/native/threads.h - native threads header
   2
   3    Copyright (C) 1996-2005, 2006, 2007 R. Grafl, A. Krall, C. Kruegel,
   4    C. Oates, R. Obermaisser, M. Platter, M. Probst, S. Ring,
   5    E. Steiner, C. Thalinger, D. Thuernbeck, P. Tomsich, C. Ullrich,
   6    J. Wenninger, Institut f. Computersprachen - TU Wien
   7
   8    This file is part of CACAO.
   9
  10    This program is free software; you can redistribute it and/or
  11    modify it under the terms of the GNU General Public License as
  12    published by the Free Software Foundation; either version 2, or (at
  13    your option) any later version.
  14
  15    This program is distributed in the hope that it will be useful, but
  16    WITHOUT ANY WARRANTY; without even the implied warranty of
  17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18    General Public License for more details.
  19
  20    You should have received a copy of the GNU General Public License
  21    along with this program; if not, write to the Free Software
  22    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  23    02110-1301, USA.
  24
  25    $Id: threads.h 8304 2007-08-14 19:57:20Z pm $
  26
  27 */
  28
  29
  30 #ifndef _THREADS_H
  31 #define _THREADS_H
  32
  33 /* forward typedefs ***********************************************************/
  34
  35 typedef struct threadobject threadobject;
  36
  37
  38 #include "config.h"
  39
  40 #include <pthread.h>
  41 #include <ucontext.h>
  42
  43 #include "vm/types.h"
  44
  45 #include "mm/memory.h"
  46 #include "native/jni.h"
  47 #include "native/localref.h"
  48 #include "native/include/java_lang_Thread.h"
  49
  50 #include "threads/native/lock.h"
  51
  52 #include "vm/global.h"
  53
  54 #include "vm/jit/stacktrace.h"
  55
  56 #if defined(ENABLE_INTRP)
  57 #include "vm/jit/intrp/intrp.h"
  58 #endif
  59
  60 #if defined(__DARWIN__)
  61 # include <mach/mach.h>
  62
  63 typedef struct {
  64         pthread_mutex_t mutex;
  65         pthread_cond_t cond;
  66         int value;
  67 } sem_t;
  68
  69 #else
  70 # include <semaphore.h>
  71 #endif
  72
  73
  74 /* current threadobject *******************************************************/
  75
  76 #if defined(HAVE___THREAD)
  77
  78 #define THREADSPECIFIC    __thread
  79 #define THREADOBJECT      threads_current_threadobject
  80
  81 extern __thread threadobject *threads_current_threadobject;
  82
  83 #else /* defined(HAVE___THREAD) */
  84
  85 #define THREADSPECIFIC
  86 #define THREADOBJECT \
  87         ((threadobject *) pthread_getspecific(threads_current_threadobject_key))
  88
  89 extern pthread_key_t threads_current_threadobject_key;
  90
  91 #endif /* defined(HAVE___THREAD) */
  92
  93
  94 /* threadobject ****************************************************************
  95
  96    Struct holding thread local variables.
  97
  98 *******************************************************************************/
  99
 100 #define THREAD_FLAG_JAVA        0x01    /* a normal Java thread               */
 101 #define THREAD_FLAG_INTERNAL    0x02    /* CACAO internal thread              */
 102 #define THREAD_FLAG_DAEMON      0x04    /* daemon thread                      */
 103
 104
 105 struct threadobject {
 106         java_lang_Thread     *object;       /* link to java.lang.Thread object    */
 107
 108         ptrint                thinlock;     /* pre-computed thin lock value       */
 109
 110         s4                    index;        /* thread index, starting with 1      */
 111         u4                    flags;        /* flag field                         */
 112         u4                    state;        /* state field                        */
 113
 114         pthread_t             tid;          /* pthread id                         */
 115
 116 #if defined(__DARWIN__)
 117         mach_port_t           mach_thread;       /* Darwin thread id              */
 118 #endif
 119
 120         /* these are used for the wait/notify implementation                      */
 121         pthread_mutex_t       waitmutex;
 122         pthread_cond_t        waitcond;
 123
 124         bool                  interrupted;
 125         bool                  signaled;
 126         bool                  sleeping;
 127
 128         u1                   *pc;           /* current PC (used for profiling)    */
 129
 130         java_object_t        *_exceptionptr;     /* current exception             */
 131         stackframeinfo       *_stackframeinfo;   /* current native stackframeinfo */
 132         localref_table       *_localref_table;   /* JNI local references          */
 133
 134 #if defined(ENABLE_INTRP)
 135         Cell                 *_global_sp;        /* stack pointer for interpreter */
 136 #endif
 137
 138         dumpinfo_t            dumpinfo;     /* dump memory info structure         */
 139
 140 #if defined(ENABLE_DEBUG_FILTER)
 141         u2                    filterverbosecallctr[2]; /* counters for verbose call filter */
 142 #endif
 143
 144 #if !defined(NDEBUG)
 145         s4                    tracejavacallindent;
 146         u4                    tracejavacallcount;
 147 #endif
 148
 149         listnode_t            linkage;      /* threads-list                       */
 150 };
 151
 152
 153 /* exception pointer **********************************************************/
 154
 155 #define exceptionptr      (&(THREADOBJECT->_exceptionptr))
 156
 157
 158 /* stackframeinfo *************************************************************/
 159
 160 #define STACKFRAMEINFO    (THREADOBJECT->_stackframeinfo)
 161
 162 /* counter for verbose call filter ********************************************/
 163
 164 #if defined(ENABLE_DEBUG_FILTER)
 165 #       define FILTERVERBOSECALLCTR (THREADOBJECT->filterverbosecallctr)
 166 #endif
 167
 168 /* state for trace java call **************************************************/
 169
 170 #if !defined(NDEBUG)
 171 #       define TRACEJAVACALLINDENT (THREADOBJECT->tracejavacallindent)
 172 #       define TRACEJAVACALLCOUNT (THREADOBJECT->tracejavacallcount)
 173 #endif
 174
 175 /* functions ******************************************************************/
 176
 177 void threads_sem_init(sem_t *sem, bool shared, int value);
 178 void threads_sem_wait(sem_t *sem);
 179 void threads_sem_post(sem_t *sem);
 180
 181 threadobject *threads_get_current_threadobject(void);
 182
 183 bool threads_init(void);
 184
 185 void threads_start_thread(threadobject *thread, functionptr function);
 186
 187 void threads_set_thread_priority(pthread_t tid, int priority);
 188
 189 bool threads_attach_current_thread(JavaVMAttachArgs *vm_aargs, bool isdaemon);
 190 bool threads_detach_thread(threadobject *thread);
 191
 192 void threads_join_all_threads(void);
 193
 194 void threads_sleep(s8 millis, s4 nanos);
 195
 196 bool threads_wait_with_timeout_relative(threadobject *t, s8 millis, s4 nanos);
 197
 198 void threads_thread_interrupt(threadobject *thread);
 199 bool threads_check_if_interrupted_and_reset(void);
 200 bool threads_thread_has_been_interrupted(threadobject *thread);
 201
 202 void threads_cast_stopworld(void);
 203 void threads_cast_startworld(void);
 204
 205 #endif /* _THREADS_H */
 206
 207
 208 /*
 209  * These are local overrides for various environment variables in Emacs.
 210  * Please do not remove this and leave it at the end of the file, where
 211  * Emacs will automagically detect them.
 212  * ---------------------------------------------------------------------
 213  * Local variables:
 214  * mode: c
 215  * indent-tabs-mode: t
 216  * c-basic-offset: 4
 217  * tab-width: 4
 218  * End:
 219  * vim:noexpandtab:sw=4:ts=4:
 220  */