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6711316: Open source the Garbage-First garbage collector

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First mercurial integration of the code for the Garbage-First garbage collector.

Reviewed-by: apetrusenko, iveresov, jmasa, sgoldman, tonyp, ysr
This commit is contained in:
Y. Srinivas Ramakrishna 2008-06-05 15:57:56 -07:00
parent 39463bb3fc
commit 18f3386a98
215 changed files with 36088 additions and 1249 deletions
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39
hotspot/src/share/vm/runtime/thread.hpp
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@ -783,6 +783,18 @@ class JavaThread: public Thread {
} _jmp_ring[ jump_ring_buffer_size ];
#endif /* PRODUCT */
#ifndef SERIALGC
// Support for G1 barriers
ObjPtrQueue _satb_mark_queue; // Thread-local log for SATB barrier.
// Set of all such queues.
static SATBMarkQueueSet _satb_mark_queue_set;
DirtyCardQueue _dirty_card_queue; // Thread-local log for dirty cards.
// Set of all such queues.
static DirtyCardQueueSet _dirty_card_queue_set;
#endif // !SERIALGC
friend class VMThread;
friend class ThreadWaitTransition;
friend class VM_Exit;
@ -1168,6 +1180,11 @@ class JavaThread: public Thread {
static ByteSize do_not_unlock_if_synchronized_offset() { return byte_offset_of(JavaThread, _do_not_unlock_if_synchronized); }
#ifndef SERIALGC
static ByteSize satb_mark_queue_offset() { return byte_offset_of(JavaThread, _satb_mark_queue); }
static ByteSize dirty_card_queue_offset() { return byte_offset_of(JavaThread, _dirty_card_queue); }
#endif // !SERIALGC
// Returns the jni environment for this thread
JNIEnv* jni_environment() { return &_jni_environment; }
@ -1414,6 +1431,20 @@ public:
_stack_size_at_create = value;
}
#ifndef SERIALGC
// SATB marking queue support
ObjPtrQueue& satb_mark_queue() { return _satb_mark_queue; }
static SATBMarkQueueSet& satb_mark_queue_set() {
return _satb_mark_queue_set;
}
// Dirty card queue support
DirtyCardQueue& dirty_card_queue() { return _dirty_card_queue; }
static DirtyCardQueueSet& dirty_card_queue_set() {
return _dirty_card_queue_set;
}
#endif // !SERIALGC
// Machine dependent stuff
#include "incls/_thread_pd.hpp.incl"
@ -1445,6 +1476,14 @@ public:
// clearing/querying jni attach status
bool is_attaching() const { return _is_attaching; }
void set_attached() { _is_attaching = false; OrderAccess::fence(); }
private:
// This field is used to determine if a thread has claimed
// a par_id: it is -1 if the thread has not claimed a par_id;
// otherwise its value is the par_id that has been claimed.
int _claimed_par_id;
public:
int get_claimed_par_id() { return _claimed_par_id; }
void set_claimed_par_id(int id) { _claimed_par_id = id;}
};
// Inline implementation of JavaThread::current