本文整理汇总了C++中Generation::prepare_for_compaction方法的典型用法代码示例。如果您正苦于以下问题：C++ Generation::prepare_for_compaction方法的具体用法？C++ Generation::prepare_for_compaction怎么用？C++ Generation::prepare_for_compaction使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Generation的用法示例。
在下文中一共展示了Generation::prepare_for_compaction方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: m
void G1MarkSweep::mark_sweep_phase2() {
// Now all live objects are marked, compute the new object addresses.
// It is imperative that we traverse perm_gen LAST. If dead space is
// allowed a range of dead object may get overwritten by a dead int
// array. If perm_gen is not traversed last a klassOop may get
// overwritten. This is fine since it is dead, but if the class has dead
// instances we have to skip them, and in order to find their size we
// need the klassOop!
//
// It is not required that we traverse spaces in the same order in
// phase2, phase3 and phase4, but the ValidateMarkSweep live oops
// tracking expects us to do so. See comment under phase4.
G1CollectedHeap* g1h = G1CollectedHeap::heap();
Generation* pg = g1h->perm_gen();
EventMark m("2 compute new addresses");
TraceTime tm("phase 2", PrintGC && Verbose, true, gclog_or_tty);
GenMarkSweep::trace("2");
FindFirstRegionClosure cl;
g1h->heap_region_iterate(&cl);
HeapRegion *r = cl.result();
CompactibleSpace* sp = r;
if (r->isHumongous() && oop(r->bottom())->is_gc_marked()) {
sp = r->next_compaction_space();
}
G1PrepareCompactClosure blk(sp);
g1h->heap_region_iterate(&blk);
CompactPoint perm_cp(pg, NULL, NULL);
pg->prepare_for_compaction(&perm_cp);
}