/** Adds the obsolete offsets as well as the totals of the given object. */
void addTrackedSummary(TrackedFileSummary other) {
/* Add the totals. */
add(other);
/*
* Add the offsets and the memory used [#15505] by the other tracker.
* The memory budget has already been updated for the offsets to be
* added, so we only need to account for a possible difference of one
* segment when we merge them.
*/
memSize += other.memSize;
if (other.obsoleteOffsets != null) {
if (obsoleteOffsets != null) {
/* Merge the other offsets into our list. */
if (obsoleteOffsets.merge(other.obsoleteOffsets)) {
/* There is one segment less as a result of the merge. */
updateMemoryBudget(-MemoryBudget.TFS_LIST_SEGMENT_OVERHEAD);
}
} else {
/* Adopt the other's offsets as our own. */
obsoleteOffsets = other.obsoleteOffsets;
}
}
}
/**
* Returns whether the given offset is present in the tracked offsets. This does not indicate
* whether the offset is obsolete in general, but only if it is known to be obsolete in this
* version of the tracked information.
*/
boolean containsObsoleteOffset(long offset) {
if (obsoleteOffsets != null) {
return obsoleteOffsets.contains(offset);
} else {
return false;
}
}
/** Returns obsolete offsets as an array of longs, or null if none. */
public long[] getObsoleteOffsets() {
if (obsoleteOffsets != null) {
return obsoleteOffsets.toArray();
} else {
return null;
}
}
/**
* Tracks the given offset as obsolete or non-obsolete.
*
* <p>Must be called under the log write latch.
*/
void trackObsolete(long offset) {
if (!trackDetail) {
return;
}
int adjustMem = 0;
if (obsoleteOffsets == null) {
obsoleteOffsets = new OffsetList();
adjustMem += MemoryBudget.TFS_LIST_INITIAL_OVERHEAD;
}
if (obsoleteOffsets.add(offset, tracker.getEnvironment().isOpen())) {
adjustMem += MemoryBudget.TFS_LIST_SEGMENT_OVERHEAD;
}
if (adjustMem != 0) {
updateMemoryBudget(adjustMem);
}
}
