stan/jdk-24
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

8252125: add an "inflating" entry to the "table" of bit patterns in share/oops/markWord.hpp

Browse Source 
Reviewed-by: tschatzl, coleenp
This commit is contained in:
Daniel D. Daugherty 2020-08-21 16:01:46 -04:00
parent d1ab20c633
commit 5db57dc1a5
1 changed files with 4 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
src/hotspot/share/oops/markWord.hpp
View File

@ -84,12 +84,13 @@
// [header | 0 | 01] unlocked regular object header // [header | 0 | 01] unlocked regular object header
// [ptr | 10] monitor inflated lock (header is wapped out) // [ptr | 10] monitor inflated lock (header is wapped out)
// [ptr | 11] marked used to mark an object // [ptr | 11] marked used to mark an object
// [0 ............ 0| 00] inflating inflation in progress
// //
// We assume that stack/thread pointers have the lowest two bits cleared. // We assume that stack/thread pointers have the lowest two bits cleared.
// //
// - INFLATING() is a distinguished markword value that is used when // - INFLATING() is a distinguished markword value of all zeros that is
// inflating an existing stack-lock into an ObjectMonitor. See below // used when inflating an existing stack-lock into an ObjectMonitor.
// for is_being_inflated() and INFLATING(). // See below for is_being_inflated() and INFLATING().
class BasicLock; class BasicLock;
class ObjectMonitor; class ObjectMonitor;