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 #include "precompiled.hpp"
26 #include "jfr/recorder/storage/jfrBuffer.hpp"
27 #include "runtime/atomic.hpp"
28 #include "runtime/orderAccess.inline.hpp"
29 #include "runtime/thread.inline.hpp"
30
31 static const u1* const MUTEX_CLAIM = NULL;
32
33 JfrBuffer::JfrBuffer() : _next(NULL),
34 _prev(NULL),
35 _identity(NULL),
36 _pos(NULL),
37 _top(NULL),
38 _flags(0),
39 _header_size(0),
40 _size(0) {}
41
42 bool JfrBuffer::initialize(size_t header_size, size_t size, const void* id /* NULL */) {
43 _header_size = (u2)header_size;
44 _size = (u4)(size / BytesPerWord);
45 assert(_identity == NULL, "invariant");
46 _identity = id;
47 set_pos(start());
48 set_top(start());
|
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 #include "precompiled.hpp"
26 #include "jfr/recorder/storage/jfrBuffer.hpp"
27 #include "runtime/atomic.hpp"
28 #include "runtime/orderAccess.hpp"
29 #include "runtime/thread.inline.hpp"
30
31 static const u1* const MUTEX_CLAIM = NULL;
32
33 JfrBuffer::JfrBuffer() : _next(NULL),
34 _prev(NULL),
35 _identity(NULL),
36 _pos(NULL),
37 _top(NULL),
38 _flags(0),
39 _header_size(0),
40 _size(0) {}
41
42 bool JfrBuffer::initialize(size_t header_size, size_t size, const void* id /* NULL */) {
43 _header_size = (u2)header_size;
44 _size = (u4)(size / BytesPerWord);
45 assert(_identity == NULL, "invariant");
46 _identity = id;
47 set_pos(start());
48 set_top(start());
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