@Inline
private boolean acquireRecyclableBlockAddressOrder() {
if (recyclableExhausted) {
if (VM.VERIFY_ASSERTIONS && Options.verbose.getValue() >= 9) {
Log.writeln("[no recyclable available]");
}
return false;
}
int markState = 0;
boolean usable = false;
while (!usable) {
Address next = recyclableBlock.plus(BYTES_IN_BLOCK);
if (recyclableBlock.isZero() || ImmixSpace.isRecycleAllocChunkAligned(next)) {
recyclableBlock = space.acquireReusableBlocks();
if (recyclableBlock.isZero()) {
recyclableExhausted = true;
if (VM.VERIFY_ASSERTIONS && Options.verbose.getValue() >= 9) {
Log.writeln("[recyclable exhausted]");
}
line = LINES_IN_BLOCK;
return false;
}
} else {
recyclableBlock = next;
}
markState = Block.getBlockMarkState(recyclableBlock);
usable = (markState > 0 && markState <= ImmixSpace.getReusuableMarkStateThreshold(copy));
if (copy && Block.isDefragSource(recyclableBlock)) usable = false;
}
if (VM.VERIFY_ASSERTIONS) VM.assertions._assert(!Block.isUnused(recyclableBlock));
Block.setBlockAsReused(recyclableBlock);
lineUseCount += (LINES_IN_BLOCK - markState);
return true; // found something good
}
