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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 // Forward declarations of classes defined here
26
27 class WorkGang;
28 class GangWorker;
29 class YieldingFlexibleGangWorker;
30 class YieldingFlexibleGangTask;
31 class WorkData;
32 class AbstractWorkGang;
33
34 // An abstract task to be worked on by a gang.
35 // You subclass this to supply your own work() method
36 class AbstractGangTask VALUE_OBJ_CLASS_SPEC {
37 public:
38 // The abstract work method.
39 // The argument tells you which member of the gang you are.
40 virtual void work(int i) = 0;
41
42 // This method configures the task for proper termination.
43 // Some tasks do not have any requirements on termination
44 // and may inherit this method that does nothing. Some
441 static FreeIdSetPtr _sets[NSets];
442 static bool _stat_init;
443 int _index;
444
445 public:
446 FreeIdSet(int sz, Monitor* mon);
447 ~FreeIdSet();
448
449 static void set_safepoint(bool b);
450
451 // Attempt to claim the given id permanently. Returns "true" iff
452 // successful.
453 bool claim_perm_id(int i);
454
455 // Returns an unclaimed parallel id (waiting for one to be released if
456 // necessary). Returns "-1" if a GC wakes up a wait for an id.
457 int claim_par_id();
458
459 void release_par_id(int id);
460 };
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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 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 *
23 */
24
25 #ifndef SHARE_VM_UTILITIES_WORKGROUP_HPP
26 #define SHARE_VM_UTILITIES_WORKGROUP_HPP
27
28 #include "utilities/taskqueue.hpp"
29 #ifdef TARGET_OS_FAMILY_linux
30 # include "thread_linux.inline.hpp"
31 #endif
32 #ifdef TARGET_OS_FAMILY_solaris
33 # include "thread_solaris.inline.hpp"
34 #endif
35 #ifdef TARGET_OS_FAMILY_windows
36 # include "thread_windows.inline.hpp"
37 #endif
38
39 // Forward declarations of classes defined here
40
41 class WorkGang;
42 class GangWorker;
43 class YieldingFlexibleGangWorker;
44 class YieldingFlexibleGangTask;
45 class WorkData;
46 class AbstractWorkGang;
47
48 // An abstract task to be worked on by a gang.
49 // You subclass this to supply your own work() method
50 class AbstractGangTask VALUE_OBJ_CLASS_SPEC {
51 public:
52 // The abstract work method.
53 // The argument tells you which member of the gang you are.
54 virtual void work(int i) = 0;
55
56 // This method configures the task for proper termination.
57 // Some tasks do not have any requirements on termination
58 // and may inherit this method that does nothing. Some
455 static FreeIdSetPtr _sets[NSets];
456 static bool _stat_init;
457 int _index;
458
459 public:
460 FreeIdSet(int sz, Monitor* mon);
461 ~FreeIdSet();
462
463 static void set_safepoint(bool b);
464
465 // Attempt to claim the given id permanently. Returns "true" iff
466 // successful.
467 bool claim_perm_id(int i);
468
469 // Returns an unclaimed parallel id (waiting for one to be released if
470 // necessary). Returns "-1" if a GC wakes up a wait for an id.
471 int claim_par_id();
472
473 void release_par_id(int id);
474 };
475
476 #endif // SHARE_VM_UTILITIES_WORKGROUP_HPP
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