hotspot/src/share/vm/runtime/sweeper.hpp
changeset 5533 e8d9ff82ec62
parent 4750 71fd601907dc
child 5547 f4b087cbb361
equal deleted inserted replaced
5532:34c4ef11dbed 5533:e8d9ff82ec62
    33   static int       _seen;         // Nof. nmethod we have currently processed in current pass of CodeCache
    33   static int       _seen;         // Nof. nmethod we have currently processed in current pass of CodeCache
    34   static int       _invocations;  // No. of invocations left until we are completed with this pass
    34   static int       _invocations;  // No. of invocations left until we are completed with this pass
    35 
    35 
    36   static bool      _rescan;          // Indicates that we should do a full rescan of the
    36   static bool      _rescan;          // Indicates that we should do a full rescan of the
    37                                      // of the code cache looking for work to do.
    37                                      // of the code cache looking for work to do.
       
    38   static bool      _do_sweep;        // Flag to skip the conc sweep if no stack scan happened
       
    39   static jint      _sweep_started;   // Flag to control conc sweeper
    38   static int       _locked_seen;     // Number of locked nmethods encountered during the scan
    40   static int       _locked_seen;     // Number of locked nmethods encountered during the scan
    39   static int       _not_entrant_seen_on_stack; // Number of not entrant nmethod were are still on stack
    41   static int       _not_entrant_seen_on_stack; // Number of not entrant nmethod were are still on stack
    40 
    42 
    41   static bool      _was_full;        // remember if we did emergency unloading
    43   static bool      _was_full;        // remember if we did emergency unloading
    42   static jint      _advise_to_sweep; // flag to indicate code cache getting full
    44   static jint      _advise_to_sweep; // flag to indicate code cache getting full
    46 
    48 
    47   static void process_nmethod(nmethod *nm);
    49   static void process_nmethod(nmethod *nm);
    48  public:
    50  public:
    49   static long traversal_count() { return _traversals; }
    51   static long traversal_count() { return _traversals; }
    50 
    52 
    51   static void sweep();  // Invoked at the end of each safepoint
    53   static void scan_stacks();      // Invoked at the end of each safepoint
       
    54   static void sweep_code_cache(); // Concurrent part of sweep job
       
    55   static void possibly_sweep();   // Compiler threads call this to sweep
    52 
    56 
    53   static void notify(nmethod* nm) {
    57   static void notify(nmethod* nm) {
    54     // Perform a full scan of the code cache from the beginning.  No
    58     // Perform a full scan of the code cache from the beginning.  No
    55     // need to synchronize the setting of this flag since it only
    59     // need to synchronize the setting of this flag since it only
    56     // changes to false at safepoint so we can never overwrite it with false.
    60     // changes to false at safepoint so we can never overwrite it with false.