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_RUNTIME_THREADIDENTIFIER_HPP
26 #define SHARE_RUNTIME_THREADIDENTIFIER_HPP
27 
28 #include "memory/allStatic.hpp"
29 
30 /*
31  * Provides unique monotonic identifiers for threads.
32  *
33  * Java uses unsafe to initialize the tid field for Thread and VirtualThread on construction.
34  * JFR uses next() for a non-reusable id for non-java threads.
35  */
36 class ThreadIdentifier : AllStatic {
37  public:
38   static int64_t next();

39   static int64_t unsafe_offset();

40 };
41 
42 #endif // SHARE_RUNTIME_THREADIDENTIFIER_HPP

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_RUNTIME_THREADIDENTIFIER_HPP
26 #define SHARE_RUNTIME_THREADIDENTIFIER_HPP
27 
28 #include "memory/allStatic.hpp"
29 
30 /*
31  * Provides unique monotonic identifiers for threads.
32  *
33  * Java uses unsafe to initialize the tid field for Thread and VirtualThread on construction.
34  * JFR uses next() for a non-reusable id for non-java threads.
35  */
36 class ThreadIdentifier : AllStatic {
37  public:
38   static int64_t next();
39   static int64_t current();
40   static int64_t unsafe_offset();
41   DEBUG_ONLY(static int64_t initial();)
42 };
43 
44 #endif // SHARE_RUNTIME_THREADIDENTIFIER_HPP