netty-incubator-buffer-api/buffer-api/src/main/java/io/netty/buffer/api/pool/PooledBufferAllocatorMetric...

93 lines
2.6 KiB
Java

/*
* Copyright 2021 The Netty Project
*
* The Netty Project licenses this file to you under the Apache License,
* version 2.0 (the "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at:
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*/
package io.netty.buffer.api.pool;
import io.netty.util.internal.StringUtil;
import java.util.List;
/**
* Exposed metric for {@link PooledBufferAllocator}.
*/
final class PooledBufferAllocatorMetric implements BufferAllocatorMetric {
private final PooledBufferAllocator allocator;
PooledBufferAllocatorMetric(PooledBufferAllocator allocator) {
this.allocator = allocator;
}
/**
* Return the number of arenas.
*/
public int numArenas() {
return allocator.numArenas();
}
/**
* Return a {@link List} of all {@link PoolArenaMetric}s that are provided by this pool.
*/
public List<PoolArenaMetric> arenaMetrics() {
return allocator.arenaMetrics();
}
/**
* Return the number of thread local caches used by this {@link PooledBufferAllocator}.
*/
public int numThreadLocalCaches() {
return allocator.numThreadLocalCaches();
}
/**
* Return the size of the small cache.
*/
public int smallCacheSize() {
return allocator.smallCacheSize();
}
/**
* Return the size of the normal cache.
*/
public int normalCacheSize() {
return allocator.normalCacheSize();
}
/**
* Return the chunk size for an arena.
*/
public int chunkSize() {
return allocator.chunkSize();
}
@Override
public long usedMemory() {
return allocator.usedMemory();
}
@Override
public String toString() {
StringBuilder sb = new StringBuilder(256);
sb.append(StringUtil.simpleClassName(this))
.append("(usedMemory: ").append(usedMemory())
.append("; numArenas: ").append(numArenas())
.append("; smallCacheSize: ").append(smallCacheSize())
.append("; normalCacheSize: ").append(normalCacheSize())
.append("; numThreadLocalCaches: ").append(numThreadLocalCaches())
.append("; chunkSize: ").append(chunkSize()).append(')');
return sb.toString();
}
}