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comparison src/share/vm/runtime/mutex.hpp @ 14309:63a4eb8bcd23

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8025856: Fix typos in the GC code Summary: Fix about 440 typos in comments in the VM code Reviewed-by: mgerdin, tschatzl, coleenp, kmo, jcoomes
author jwilhelm
date Thu, 23 Jan 2014 14:47:23 +0100
parents b9a9ed0f8eeb
children 4ca6dc0799b6
comparison
equal deleted inserted replaced
14308:870aedf4ba4f 14309:63a4eb8bcd23
88 88
89 public: 89 public:
90 // A special lock: Is a lock where you are guaranteed not to block while you are 90 // A special lock: Is a lock where you are guaranteed not to block while you are
91 // holding it, i.e., no vm operation can happen, taking other locks, etc. 91 // holding it, i.e., no vm operation can happen, taking other locks, etc.
92 // NOTE: It is critical that the rank 'special' be the lowest (earliest) 92 // NOTE: It is critical that the rank 'special' be the lowest (earliest)
93 // (except for "event"?) for the deadlock dection to work correctly. 93 // (except for "event"?) for the deadlock detection to work correctly.
94 // The rank native is only for use in Mutex's created by JVM_RawMonitorCreate, 94 // The rank native is only for use in Mutex's created by JVM_RawMonitorCreate,
95 // which being external to the VM are not subject to deadlock detection. 95 // which being external to the VM are not subject to deadlock detection.
96 // The rank safepoint is used only for synchronization in reaching a 96 // The rank safepoint is used only for synchronization in reaching a
97 // safepoint and leaving a safepoint. It is only used for the Safepoint_lock 97 // safepoint and leaving a safepoint. It is only used for the Safepoint_lock
98 // currently. While at a safepoint no mutexes of rank safepoint are held 98 // currently. While at a safepoint no mutexes of rank safepoint are held
239 // constructed from pthreads primitives might extend a mutex by adding 239 // constructed from pthreads primitives might extend a mutex by adding
240 // a condvar and some extra metadata. In fact this was the case until J2SE7. 240 // a condvar and some extra metadata. In fact this was the case until J2SE7.
241 // 241 //
242 // Currently, however, the base object is a monitor. Monitor contains all the 242 // Currently, however, the base object is a monitor. Monitor contains all the
243 // logic for wait(), notify(), etc. Mutex extends monitor and restricts the 243 // logic for wait(), notify(), etc. Mutex extends monitor and restricts the
244 // visiblity of wait(), notify(), and notify_all(). 244 // visibility of wait(), notify(), and notify_all().
245 // 245 //
246 // Another viable alternative would have been to have Monitor extend Mutex and 246 // Another viable alternative would have been to have Monitor extend Mutex and
247 // implement all the normal mutex and wait()-notify() logic in Mutex base class. 247 // implement all the normal mutex and wait()-notify() logic in Mutex base class.
248 // The wait()-notify() facility would be exposed via special protected member functions 248 // The wait()-notify() facility would be exposed via special protected member functions
249 // (e.g., _Wait() and _Notify()) in Mutex. Monitor would extend Mutex and expose wait() 249 // (e.g., _Wait() and _Notify()) in Mutex. Monitor would extend Mutex and expose wait()