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Code Releases Activity

Make entries and deleted counters per-tier

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This commit is contained in:
leventov
2015-12-07 11:43:37 +03:00
parent 2f58bfb399
commit ce45903af7
15 changed files with 125 additions and 85 deletions
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src/main/java/net/openhft/chronicle/hash/impl/TierCountersArea.java
+28
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@@ -29,11 +29,15 @@ public enum TierCountersArea {
;
private static Memory memory = OS.memory();
private static final long UNSIGNED_INT_MASK = 0xFFFFFFFFL;
public static final long NEXT_TIER_INDEX_OFFSET = 0L;
public static final long PREV_TIER_INDEX_OFFSET = NEXT_TIER_INDEX_OFFSET + 8L;
public static final long LOWEST_POSSIBLY_FREE_CHUNK_TIERED_OFFSET = PREV_TIER_INDEX_OFFSET + 8L;
public static final long SEGMENT_INDEX_OFFSET = LOWEST_POSSIBLY_FREE_CHUNK_TIERED_OFFSET + 8L;
public static final long TIER_OFFSET = SEGMENT_INDEX_OFFSET + 4L;
public static final long ENTRIES_OFFSET = TIER_OFFSET + 4L;
public static final long DELETED_OFFSET = ENTRIES_OFFSET + 4L;
public static long nextTierIndex(long address) {
return memory.readLong(address + NEXT_TIER_INDEX_OFFSET);
@@ -75,4 +79,28 @@ public enum TierCountersArea {
public static void tier(long address, int tier) {
memory.writeInt(address + TIER_OFFSET, tier);
}
public static long entries(long address) {
return memory.readInt(address + ENTRIES_OFFSET) & UNSIGNED_INT_MASK;
}
public static void entries(long address, long entries) {
if (entries >= (1L << 32)) {
throw new IllegalStateException("tier entries overflow: up to " + UNSIGNED_INT_MASK +
" supported, " + entries + " given");
}
memory.writeInt(address + ENTRIES_OFFSET, (int) entries);
}
public static long deleted(long address) {
return memory.readInt(address + DELETED_OFFSET) & UNSIGNED_INT_MASK;
}
public static void deleted(long address, long deleted) {
if (deleted >= (1L << 32)) {
throw new IllegalStateException("tier deleted entries count overflow: up to " +
UNSIGNED_INT_MASK + " supported, " + deleted + " given");
}
memory.writeInt(address + DELETED_OFFSET, (int) deleted);
}
}