Mercurial > hg > truffle
annotate src/share/vm/gc_implementation/g1/satbQueue.hpp @ 1972:f95d63e2154a
6989984: Use standard include model for Hospot
Summary: Replaced MakeDeps and the includeDB files with more standardized solutions.
Reviewed-by: coleenp, kvn, kamg
| author | stefank |
|---|---|
| date | Tue, 23 Nov 2010 13:22:55 -0800 |
| parents | 6e0aac35bfa9 |
| children | 7e37af9d69ef |
| rev | line source |
|---|---|
| 342 | 1 /* |
| 1972 | 2 * Copyright (c) 2001, 2010, Oracle and/or its affiliates. All rights reserved. |
| 342 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1317
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1317
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1317
diff
changeset
|
21 * questions. |
| 342 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #ifndef SHARE_VM_GC_IMPLEMENTATION_G1_SATBQUEUE_HPP |
| 26 #define SHARE_VM_GC_IMPLEMENTATION_G1_SATBQUEUE_HPP | |
| 27 | |
| 28 #include "gc_implementation/g1/ptrQueue.hpp" | |
| 29 | |
| 342 | 30 class ObjectClosure; |
| 31 class JavaThread; | |
| 32 | |
| 33 // A ptrQueue whose elements are "oops", pointers to object heads. | |
| 34 class ObjPtrQueue: public PtrQueue { | |
| 35 public: | |
| 36 ObjPtrQueue(PtrQueueSet* qset_, bool perm = false) : | |
|
1842
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1552
diff
changeset
|
37 // SATB queues are only active during marking cycles. We create |
|
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1552
diff
changeset
|
38 // them with their active field set to false. If a thread is |
|
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1552
diff
changeset
|
39 // created during a cycle and its SATB queue needs to be activated |
|
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1552
diff
changeset
|
40 // before the thread starts running, we'll need to set its active |
|
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1552
diff
changeset
|
41 // field to true. This is done in JavaThread::initialize_queues(). |
|
6e0aac35bfa9
6980838: G1: guarantee(false) failed: thread has an unexpected active value in its SATB queue
tonyp
parents:
1552
diff
changeset
|
42 PtrQueue(qset_, perm, false /* active */) { } |
| 342 | 43 // Apply the closure to all elements, and reset the index to make the |
| 44 // buffer empty. | |
| 45 void apply_closure(ObjectClosure* cl); | |
| 46 | |
| 47 // Apply the closure to all elements of "buf", down to "index" (inclusive.) | |
| 48 static void apply_closure_to_buffer(ObjectClosure* cl, | |
| 49 void** buf, size_t index, size_t sz); | |
| 50 | |
|
845
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
342
diff
changeset
|
51 void verify_oops_in_buffer() NOT_DEBUG_RETURN; |
| 342 | 52 }; |
| 53 | |
| 54 | |
| 55 | |
| 56 class SATBMarkQueueSet: public PtrQueueSet { | |
| 57 ObjectClosure* _closure; | |
| 58 ObjectClosure** _par_closures; // One per ParGCThread. | |
| 59 | |
| 60 ObjPtrQueue _shared_satb_queue; | |
| 61 | |
| 62 // Utility function to support sequential and parallel versions. If | |
| 63 // "par" is true, then "worker" is the par thread id; if "false", worker | |
| 64 // is ignored. | |
| 65 bool apply_closure_to_completed_buffer_work(bool par, int worker); | |
| 66 | |
|
1317
d4197f8d516a
6935821: G1: threads created during marking do not active their SATB queues
tonyp
parents:
1111
diff
changeset
|
67 #ifdef ASSERT |
|
d4197f8d516a
6935821: G1: threads created during marking do not active their SATB queues
tonyp
parents:
1111
diff
changeset
|
68 void dump_active_values(JavaThread* first, bool expected_active); |
|
d4197f8d516a
6935821: G1: threads created during marking do not active their SATB queues
tonyp
parents:
1111
diff
changeset
|
69 #endif // ASSERT |
| 342 | 70 |
| 71 public: | |
| 72 SATBMarkQueueSet(); | |
| 73 | |
| 74 void initialize(Monitor* cbl_mon, Mutex* fl_lock, | |
| 1111 | 75 int process_completed_threshold, |
| 76 Mutex* lock); | |
| 342 | 77 |
| 78 static void handle_zero_index_for_thread(JavaThread* t); | |
| 79 | |
|
1317
d4197f8d516a
6935821: G1: threads created during marking do not active their SATB queues
tonyp
parents:
1111
diff
changeset
|
80 // Apply "set_active(b)" to all Java threads' SATB queues. It should be |
|
d4197f8d516a
6935821: G1: threads created during marking do not active their SATB queues
tonyp
parents:
1111
diff
changeset
|
81 // called only with the world stopped. The method will assert that the |
|
d4197f8d516a
6935821: G1: threads created during marking do not active their SATB queues
tonyp
parents:
1111
diff
changeset
|
82 // SATB queues of all threads it visits, as well as the SATB queue |
|
d4197f8d516a
6935821: G1: threads created during marking do not active their SATB queues
tonyp
parents:
1111
diff
changeset
|
83 // set itself, has an active value same as expected_active. |
|
d4197f8d516a
6935821: G1: threads created during marking do not active their SATB queues
tonyp
parents:
1111
diff
changeset
|
84 void set_active_all_threads(bool b, bool expected_active); |
| 342 | 85 |
| 86 // Register "blk" as "the closure" for all queues. Only one such closure | |
| 87 // is allowed. The "apply_closure_to_completed_buffer" method will apply | |
| 88 // this closure to a completed buffer, and "iterate_closure_all_threads" | |
| 89 // applies it to partially-filled buffers (the latter should only be done | |
| 90 // with the world stopped). | |
| 91 void set_closure(ObjectClosure* closure); | |
| 92 // Set the parallel closures: pointer is an array of pointers to | |
| 93 // closures, one for each parallel GC thread. | |
| 94 void set_par_closure(int i, ObjectClosure* closure); | |
| 95 | |
| 96 // If there is a registered closure for buffers, apply it to all entries | |
| 97 // in all currently-active buffers. This should only be applied at a | |
| 98 // safepoint. (Currently must not be called in parallel; this should | |
| 99 // change in the future.) | |
| 100 void iterate_closure_all_threads(); | |
| 101 // Parallel version of the above. | |
| 102 void par_iterate_closure_all_threads(int worker); | |
| 103 | |
| 104 // If there exists some completed buffer, pop it, then apply the | |
| 105 // registered closure to all its elements, and return true. If no | |
| 106 // completed buffers exist, return false. | |
| 107 bool apply_closure_to_completed_buffer() { | |
| 108 return apply_closure_to_completed_buffer_work(false, 0); | |
| 109 } | |
| 110 // Parallel version of the above. | |
| 111 bool par_apply_closure_to_completed_buffer(int worker) { | |
| 112 return apply_closure_to_completed_buffer_work(true, worker); | |
| 113 } | |
| 114 | |
| 115 ObjPtrQueue* shared_satb_queue() { return &_shared_satb_queue; } | |
| 116 | |
| 117 // If a marking is being abandoned, reset any unprocessed log buffers. | |
| 118 void abandon_partial_marking(); | |
| 119 | |
| 120 }; | |
| 1972 | 121 |
| 122 #endif // SHARE_VM_GC_IMPLEMENTATION_G1_SATBQUEUE_HPP |