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 #include "precompiled.hpp"
26 #include "gc/shared/gcId.hpp"
27 #include "runtime/safepoint.hpp"
28 #include "runtime/thread.inline.hpp"
29
30 uint GCId::_next_id = 0;
31
32 NamedThread* currentNamedthread() {
33 assert(Thread::current()->is_Named_thread(), "This thread must be NamedThread");
34 return (NamedThread*)Thread::current();
35 }
36
37 const uint GCId::create() {
38 return _next_id++;
39 }
40
41 const uint GCId::current() {
42 assert(currentNamedthread()->gc_id() != undefined(), "Using undefined GC id.");
43 return current_raw();
44 }
45
46 const uint GCId::current_raw() {
47 return currentNamedthread()->gc_id();
48 }
49
50 GCIdMark::GCIdMark() : _gc_id(GCId::create()) {
51 currentNamedthread()->set_gc_id(_gc_id);
52 }
53
54 GCIdMark::GCIdMark(uint gc_id) : _gc_id(gc_id) {
55 currentNamedthread()->set_gc_id(_gc_id);
56 }
57
58 GCIdMark::~GCIdMark() {
59 currentNamedthread()->set_gc_id(GCId::undefined());
60 }
61
62 GCIdMarkAndRestore::GCIdMarkAndRestore() : _gc_id(GCId::create()) {
63 _previous_gc_id = GCId::current_raw();
64 currentNamedthread()->set_gc_id(_gc_id);
65 }
66
67 GCIdMarkAndRestore::GCIdMarkAndRestore(uint gc_id) : _gc_id(gc_id) {
|
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 #include "precompiled.hpp"
26 #include "gc/shared/gcId.hpp"
27 #include "runtime/safepoint.hpp"
28 #include "runtime/thread.inline.hpp"
29 #include "runtime/threadLocalStorage.hpp"
30
31 uint GCId::_next_id = 0;
32
33 NamedThread* currentNamedthread() {
34 assert(Thread::current()->is_Named_thread(), "This thread must be NamedThread");
35 return (NamedThread*)Thread::current();
36 }
37
38 const uint GCId::create() {
39 return _next_id++;
40 }
41
42 const uint GCId::current() {
43 assert(currentNamedthread()->gc_id() != undefined(), "Using undefined GC id.");
44 return current_raw();
45 }
46
47 const uint GCId::current_raw() {
48 return currentNamedthread()->gc_id();
49 }
50
51 size_t GCId::print_prefix(char* buf, size_t len) {
52 Thread* thread = ThreadLocalStorage::thread();
53 if (thread != NULL && thread->is_Named_thread()) {
54 uint gc_id = current_raw();
55 if (gc_id != undefined()) {
56 int ret = jio_snprintf(buf, len, "GC(%u) ", gc_id);
57 assert(ret > 0, "Failed to print prefix. Log buffer too small?");
58 return (size_t)ret;
59 }
60 }
61 return 0;
62 }
63
64 GCIdMark::GCIdMark() : _gc_id(GCId::create()) {
65 currentNamedthread()->set_gc_id(_gc_id);
66 }
67
68 GCIdMark::GCIdMark(uint gc_id) : _gc_id(gc_id) {
69 currentNamedthread()->set_gc_id(_gc_id);
70 }
71
72 GCIdMark::~GCIdMark() {
73 currentNamedthread()->set_gc_id(GCId::undefined());
74 }
75
76 GCIdMarkAndRestore::GCIdMarkAndRestore() : _gc_id(GCId::create()) {
77 _previous_gc_id = GCId::current_raw();
78 currentNamedthread()->set_gc_id(_gc_id);
79 }
80
81 GCIdMarkAndRestore::GCIdMarkAndRestore(uint gc_id) : _gc_id(gc_id) {
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