libjava/include/boehm-gc.h

   1 // -*- c++ -*-
   2 // boehm-gc.h - Defines for Boehm collector.
   3
   4 /* Copyright (C) 1998, 1999, 2002, 2004, 2006, 2007  Free Software Foundation
   5
   6    This file is part of libgcj.
   7
   8 This software is copyrighted work licensed under the terms of the
   9 Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
  10 details.  */
  11
  12 #ifndef __JV_BOEHM_GC__
  13 #define __JV_BOEHM_GC__
  14
  15 #define JV_MARKOBJ_DECL void *::_Jv_MarkObj (void *, void *, void *, void *)
  16 #define JV_MARKARRAY_DECL void *::_Jv_MarkArray (void *, void *, void *, void *)
  17
  18 extern "C"
  19 {
  20   void *_Jv_MarkObj (void *, void *, void *, void *);
  21   void *_Jv_MarkArray (void *, void *, void *, void *);
  22   void _Jv_RegisterLibForGc (const void *);
  23 }
  24
  25 // Enough stuff to inline _Jv_AllocObj.  Ugly.
  26 #include <gcj/javaprims.h>
  27 #include <java/lang/Class.h>
  28 #include <string.h>
  29
  30 #include <gc_ext_config.h> // for THREAD_LOCAL_ALLOC
  31
  32 extern "C" void * GC_gcj_malloc(size_t, void *);
  33 extern "C" void * GC_malloc_atomic(size_t);
  34 #ifdef THREAD_LOCAL_ALLOC
  35 extern "C" void * GC_local_gcj_malloc(size_t, void *);
  36 extern "C" void * GC_local_malloc_atomic(size_t);
  37 #endif
  38
  39 #ifndef LIBGCJ_GC_DEBUG
  40
  41 inline void *
  42 _Jv_AllocObj (jsize size, jclass klass)
  43 {
  44   // This should call GC_GCJ_MALLOC, but that would involve
  45   // including gc.h.
  46 #ifdef THREAD_LOCAL_ALLOC
  47   return GC_local_gcj_malloc (size, klass->vtable);
  48 #else
  49   return GC_gcj_malloc (size, klass->vtable);
  50 #endif
  51 }
  52
  53 inline void *
  54 _Jv_AllocPtrFreeObj (jsize size, jclass klass)
  55 {
  56 #ifdef JV_HASH_SYNCHRONIZATION
  57 # ifdef THREAD_LOCAL_ALLOC
  58     void * obj = GC_local_malloc_atomic(size);
  59 # else
  60     void * obj = GC_malloc_atomic(size);
  61 # endif
  62   *((_Jv_VTable **) obj) = klass->vtable;
  63 #else
  64 # ifdef THREAD_LOCAL_ALLOC
  65     void * obj = GC_local_gcj_malloc(size, klass->vtable);
  66 # else
  67     void * obj = GC_gcj_malloc(size, klass->vtable);
  68 # endif
  69 #endif
  70   return obj;
  71 }
  72
  73 #else /* LIBGCJ_GC_DEBUG */
  74
  75 void *
  76 _Jv_AllocObj (jsize size, jclass klass);
  77
  78 void *
  79 _Jv_AllocPtrFreeObj (jsize size, jclass klass);
  80
  81 #endif /* LIBGCJ_GC_DEBUG */
  82
  83 void _Jv_GCAttachThread ();
  84
  85 void _Jv_GCDetachThread ();
  86
  87 // _Jv_AllocBytes (jsize size) should go here, too.  But clients don't
  88 // usually include this header.
  89
  90 // Suspend the given thread. This includes suspending the calling thread.
  91 extern "C" void _Jv_SuspendThread (_Jv_Thread_t *);
  92
  93 // Resume a suspended thread.
  94 extern "C" void _Jv_ResumeThread (_Jv_Thread_t *);
  95
  96 // Is the given thread suspended?
  97 extern "C" int _Jv_IsThreadSuspended (_Jv_Thread_t *);
  98 #endif /* __JV_BOEHM_GC__ */