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 */
  26
  27
  28 #ifndef _THREADS_H
  29 #define _THREADS_H
  30
  31 /* forward typedefs ***********************************************************/
  32
  33 typedef struct threadobject threadobject;
  34
  35
  36 #include "config.h"
  37
  38 #include <pthread.h>
  39 #include <ucontext.h>
  40
  41 #include "vm/types.h"
  42
  43 #include "mm/memory.h"
  44 #include "native/jni.h"
  45 #include "native/localref.h"
  46 #include "native/include/java_lang_Thread.h"
  47
  48 #include "threads/native/lock.h"
  49
  50 #include "vm/global.h"
  51
  52 #include "vm/jit/stacktrace.h"
  53
  54 #if defined(ENABLE_INTRP)
  55 #include "vm/jit/intrp/intrp.h"
  56 #endif
  57
  58 #if defined(__DARWIN__)
  59 # include <mach/mach.h>
  60
  61 typedef struct {
  62         pthread_mutex_t mutex;
  63         pthread_cond_t cond;
  64         int value;
  65 } sem_t;
  66
  67 #else
  68 # include <semaphore.h>
  69 #endif
  70
  71
  72 /* current threadobject *******************************************************/
  73
  74 #if defined(HAVE___THREAD)
  75
  76 #define THREADSPECIFIC    __thread
  77 #define THREADOBJECT      threads_current_threadobject
  78
  79 extern __thread threadobject *threads_current_threadobject;
  80
  81 #else /* defined(HAVE___THREAD) */
  82
  83 #define THREADSPECIFIC
  84 #define THREADOBJECT \
  85         ((threadobject *) pthread_getspecific(threads_current_threadobject_key))
  86
  87 extern pthread_key_t threads_current_threadobject_key;
  88
  89 #endif /* defined(HAVE___THREAD) */
  90
  91
  92 /* threadobject ****************************************************************
  93
  94    Struct holding thread local variables.
  95
  96 *******************************************************************************/
  97
  98 #define THREAD_FLAG_JAVA        0x01    /* a normal Java thread               */
  99 #define THREAD_FLAG_INTERNAL    0x02    /* CACAO internal thread              */
 100 #define THREAD_FLAG_DAEMON      0x04    /* daemon thread                      */
 101
 102
 103 struct threadobject {
 104         java_lang_Thread     *object;       /* link to java.lang.Thread object    */
 105
 106         ptrint                thinlock;     /* pre-computed thin lock value       */
 107
 108         s4                    index;        /* thread index, starting with 1      */
 109         u4                    flags;        /* flag field                         */
 110         u4                    state;        /* state field                        */
 111
 112         pthread_t             tid;          /* pthread id                         */
 113
 114 #if defined(__DARWIN__)
 115         mach_port_t           mach_thread;       /* Darwin thread id              */
 116 #endif
 117
 118         /* these are used for the wait/notify implementation                      */
 119         pthread_mutex_t       waitmutex;
 120         pthread_cond_t        waitcond;
 121
 122         bool                  interrupted;
 123         bool                  signaled;
 124         bool                  sleeping;
 125
 126         u1                   *pc;           /* current PC (used for profiling)    */
 127
 128         java_object_t        *_exceptionptr;     /* current exception             */
 129         stackframeinfo       *_stackframeinfo;   /* current native stackframeinfo */
 130         localref_table       *_localref_table;   /* JNI local references          */
 131
 132 #if defined(ENABLE_INTRP)
 133         Cell                 *_global_sp;        /* stack pointer for interpreter */
 134 #endif
 135
 136         dumpinfo_t            dumpinfo;     /* dump memory info structure         */
 137
 138 #if defined(ENABLE_DEBUG_FILTER)
 139         u2                    filterverbosecallctr[2]; /* counters for verbose call filter */
 140 #endif
 141
 142 #if !defined(NDEBUG)
 143         s4                    tracejavacallindent;
 144         u4                    tracejavacallcount;
 145 #endif
 146
 147         listnode_t            linkage;      /* threads-list                       */
 148 };
 149
 150
 151 /* exception pointer **********************************************************/
 152
 153 #define exceptionptr      (&(THREADOBJECT->_exceptionptr))
 154
 155
 156 /* stackframeinfo *************************************************************/
 157
 158 #define STACKFRAMEINFO    (THREADOBJECT->_stackframeinfo)
 159
 160 /* counter for verbose call filter ********************************************/
 161
 162 #if defined(ENABLE_DEBUG_FILTER)
 163 #       define FILTERVERBOSECALLCTR (THREADOBJECT->filterverbosecallctr)
 164 #endif
 165
 166 /* state for trace java call **************************************************/
 167
 168 #if !defined(NDEBUG)
 169 #       define TRACEJAVACALLINDENT (THREADOBJECT->tracejavacallindent)
 170 #       define TRACEJAVACALLCOUNT (THREADOBJECT->tracejavacallcount)
 171 #endif
 172
 173 /* functions ******************************************************************/
 174
 175 void threads_sem_init(sem_t *sem, bool shared, int value);
 176 void threads_sem_wait(sem_t *sem);
 177 void threads_sem_post(sem_t *sem);
 178
 179 threadobject *threads_get_current_threadobject(void);
 180
 181 bool threads_init(void);
 182
 183 void threads_start_thread(threadobject *thread, functionptr function);
 184
 185 void threads_set_thread_priority(pthread_t tid, int priority);
 186
 187 bool threads_attach_current_thread(JavaVMAttachArgs *vm_aargs, bool isdaemon);
 188 bool threads_detach_thread(threadobject *thread);
 189
 190 void threads_join_all_threads(void);
 191
 192 void threads_sleep(s8 millis, s4 nanos);
 193
 194 bool threads_wait_with_timeout_relative(threadobject *t, s8 millis, s4 nanos);
 195
 196 void threads_thread_interrupt(threadobject *thread);
 197 bool threads_check_if_interrupted_and_reset(void);
 198 bool threads_thread_has_been_interrupted(threadobject *thread);
 199
 200 void threads_cast_stopworld(void);
 201 void threads_cast_startworld(void);
 202
 203 #endif /* _THREADS_H */
 204
 205
 206 /*
 207  * These are local overrides for various environment variables in Emacs.
 208  * Please do not remove this and leave it at the end of the file, where
 209  * Emacs will automagically detect them.
 210  * ---------------------------------------------------------------------
 211  * Local variables:
 212  * mode: c
 213  * indent-tabs-mode: t
 214  * c-basic-offset: 4
 215  * tab-width: 4
 216  * End:
 217  * vim:noexpandtab:sw=4:ts=4:
 218  */