34 

    35 // CompileTask

    36 //

    37 // An entry in the compile queue.  It represents a pending or current

    38 // compilation.

    39 class CompileTask : public CHeapObj<mtCompiler> {

    40   friend class VMStructs;

    41 

    42  private:

    43   static CompileTask* _task_free_list;

    44 #ifdef ASSERT

    45   static int          _num_allocated_tasks;

    46 #endif

    47 

    48   Monitor*     _lock;

    49   uint         _compile_id;

    50   Method*      _method;

    51   jobject      _method_holder;

    52   int          _osr_bci;

    53   bool         _is_complete;

    54   bool         _is_success;

    55   bool         _is_blocking;

    56   int          _comp_level;

    57   int          _num_inlined_bytecodes;

    58   nmethodLocker* _code_handle;  // holder of eventual result

    59   CompileTask* _next, *_prev;

    60   bool         _is_free;

    61   // Fields used for logging why the compilation was initiated:

    62   jlong        _time_queued;  // in units of os::elapsed_counter()

    63   Method*      _hot_method;   // which method actually triggered this task

    64   jobject      _hot_method_holder;

    65   int          _hot_count;    // information about its invocation counter

    66   const char*  _comment;      // more info about the task

    67   const char*  _failure_reason;

    68 

    69  public:

    70   CompileTask() {

    71     _lock = new Monitor(Mutex::nonleaf+2, "CompileTaskLock");

    72   }

    73 

    74   void initialize(int compile_id, methodHandle method, int osr_bci, int comp_level,

    75                   methodHandle hot_method, int hot_count, const char* comment,

    76                   bool is_blocking);

    77 

    78   static CompileTask* allocate();

    79   static void         free(CompileTask* task);

    80 

    81   int          compile_id() const                { return _compile_id; }

    82   Method*      method() const                    { return _method; }

    83   Method*      hot_method() const                { return _hot_method; }

    84   int          osr_bci() const                   { return _osr_bci; }

    85   bool         is_complete() const               { return _is_complete; }

    86   bool         is_blocking() const               { return _is_blocking; }

    87   bool         is_success() const                { return _is_success; }

    88 

    89   nmethodLocker* code_handle() const             { return _code_handle; }

    90   void         set_code_handle(nmethodLocker* l) { _code_handle = l; }

    91   nmethod*     code() const;                     // _code_handle->code()

    92   void         set_code(nmethod* nm);            // _code_handle->set_code(nm)

    93 

    94   Monitor*     lock() const                      { return _lock; }

    95 

    96   void         mark_complete()                   { _is_complete = true; }

    97   void         mark_success()                    { _is_success = true; }

    98 

    99   int          comp_level()                      { return _comp_level;}

   100   void         set_comp_level(int comp_level)    { _comp_level = comp_level;}

   101 

   102   int          num_inlined_bytecodes() const     { return _num_inlined_bytecodes; }

   103   void         set_num_inlined_bytecodes(int n)  { _num_inlined_bytecodes = n; }

   104 

   105   CompileTask* next() const                      { return _next; }

   106   void         set_next(CompileTask* next)       { _next = next; }

   107   CompileTask* prev() const                      { return _prev; }

   108   void         set_prev(CompileTask* prev)       { _prev = prev; }

   109   bool         is_free() const                   { return _is_free; }

   110   void         set_is_free(bool val)             { _is_free = val; }

   111 

   112   // RedefineClasses support

   113   void         metadata_do(void f(Metadata*));

   114 

   115 private:

   116   static void  print_compilation_impl(outputStream* st, Method* method, int compile_id, int comp_level,

   117                                       bool is_osr_method = false, int osr_bci = -1, bool is_blocking = false,

   118                                       const char* msg = NULL, bool short_form = false, bool cr = true);

   119 

   120 public:

   121   void         print_compilation(outputStream* st = tty, const char* msg = NULL, bool short_form = false, bool cr = true);

   122   static void  print_compilation(outputStream* st, const nmethod* nm, const char* msg = NULL, bool short_form = false, bool cr = true) {

   123     print_compilation_impl(st, nm->method(), nm->compile_id(), nm->comp_level(),

   124                            nm->is_osr_method(), nm->is_osr_method() ? nm->osr_entry_bci() : -1, /*is_blocking*/ false,

   125                            msg, short_form, cr);

   126   }

   127 

   128   static void  print_inlining(outputStream* st, ciMethod* method, int inline_level, int bci, const char* msg = NULL);

   129   static void  print_inlining(ciMethod* method, int inline_level, int bci, const char* msg = NULL) {

   130     print_inlining(tty, method, inline_level, bci, msg);

   131   }

   132 

   133   // Redefine Classes support

   134   void mark_on_stack();

   135 

   136   static void  print_inline_indent(int inline_level, outputStream* st = tty);

   137 

   138   void         print_tty();

   139   void         print_line_on_error(outputStream* st, char* buf, int buflen);

   140 

   141   void         log_task(xmlStream* log);

   142   void         log_task_queued();

   143   void         log_task_start(CompileLog* log);

   144   void         log_task_done(CompileLog* log);

   145 

   146   void         set_failure_reason(const char* reason) {

   147     _failure_reason = reason;

   148   }

   149 };