apply()/free()必须成对使用 以下是实现代码 ResourcePool.java /** * 资源池管理对象 * {@link #apply()},{@link #free()}...* 通过重写{@link #isNestable()}方法决定是否允许嵌套调用 * @author guyadong * * @param 资源类型 */ public class ResourcePool...new ThreadLocal(); private final boolean nestable = isNestable(); protected ResourcePool...@param resources 资源对象集合 * @throws IllegalArgumentException 包含{@code null}元素 */ public ResourcePool...null element"); } queue.add(r); } } @SafeVarargs public ResourcePool
root cause com.mchange.v2.resourcepool.TimeoutException: A client timed out while waiting to acquire ...a resource from com.mchange.v2.resourcepool.BasicResourcePool@6df3d083 -- timeout at awaitAvailable()...com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable(BasicResourcePool.java:1317) com.mchange.v2....resourcepool.BasicResourcePool.prelimCheckoutResource(BasicResourcePool.java:557) com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource
: com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@2c34448d -- Acquisition Attempt...: Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool@51a8313b is...: com.mchange.v2.resourcepool.BasicResourcePool$ScatteredAcquireTask@bf450d2 -- Acquisition Attempt...: Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool@51a8313b is...: Having failed to acquire a resource, com.mchange.v2.resourcepool.BasicResourcePool@51a8313b is
(BasicResourcePool.java:1317) at com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource...(BasicResourcePool.java:557) at com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource...(BasicResourcePool.java:590) at com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource...(BasicResourcePool.java:590) at com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource...(BasicResourcePool.java:590) at com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource
:32) 13 at com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:...:32) 25 at com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:...: A ResourcePool could not acquire a resource from its primary factory or source. 132 at com.mchange.v2....resourcepool.BasicResourcePool.awaitAvailable(BasicResourcePool.java:1319) 133 at com.mchange.v2....resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java:477) 135 at com.mchange.v2
$AcquireTask@d373871 com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@245a897e com.mchange.v2....resourcepool.BasicResourcePool$DestroyResourceTask@33f8c1d7 com.mchange.v2.resourcepool.BasicResourcePool...(BasicResourcePool.java:1014) com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java...主要有这么几种task： com.mchange.v2.resourcepool.BasicResourcePool.AcquireTask 获取数据库连接，和底层db driver打交道，如mysql...、oracle的driver com/mchange/v2/resourcepool/BasicResourcePool.java:959 这个方法内，定义了一个内部class，这个DestroyResourceTask
解决方案是重用和共享这些创建成本高昂的对象，这称为对象池模式 对象池模式的参与者： ResourcePool (资源池类)： 用于封装逻辑的类，用来保存和管理资源列表 Resource (资源类): 用于封装特定资源的类...Client (客户端类)：使用资源的类 对象池模式的简单示例 资源池 public class ResourcePool { private List resources...= new ArrayList(); public ResourcePool() { for(int i = 0; i < 10; i++) { Resource resource...Function end"); } } Client public class Client { public static void main(String[] args) { ResourcePool...pool = new ResourcePool(); Resource res = null; try { res = pool.getResource(); res.doFunction
$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:137) at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire...(BasicResourcePool.java:1014) at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java...:32) at com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1810)
session.vim, result1.objects[0].obj,'vm') res = session.invoke_api(vim_util,"get_objects",session.vim,"ResourcePool...create_vsphere_client from com.vmware.vcenter_client import Cluster from com.vmware.vcenter_client import ResourcePool...'admin@vsphere.com', password='123456', session=session) # 获取所有资源池 filter = vsphere_client.vcenter.ResourcePool.list...vsphere_client.vcenter.Cluster.list(Cluster.FilterSpec(names={cluster_name}))[0].cluster resource_pool_id = vsphere_client.vcenter.ResourcePool.list...(ResourcePool.FilterSpec(clusters={cluster_id}))[0].resource_pool print(resource_pool_id) 列出网络 import
RAII的编程实践 基于RAII实现资源池的自动回收机制： ResourcePool为资源池类，可以创建指定数量的资源，并提供获取和释放资源的接口。...iostream> #include #include constexpr int kErrorId = -1; template class ResourcePool...{ public: ResourcePool(int size) { for (int i = 0; i < size; ++i) { pool_.emplace_back...std::deque pool_; }; template class ResourceWrapper { public: ResourceWrapper(ResourcePool...} const T& GetRawResource() const noexcept{ return resource_; } private: ResourcePool
{ m_AssetPool = objectPoolManager.CreateMultiSpawnObjectPool("Asset Pool"); m_ResourcePool...此时有有两种情况， 1.执行加载asset任务时，主bundle已加载，从ResourcePool中获取 GameFramework.Resource.ResourceManager.ResourceLoader.LoadResourceAgent.Start...ResourceObject resourceObject = m_ResourceLoader.m_ResourcePool.Spawn(resourceName); if (resourceObject...= null) { GameFrameworkLog.Info("ResourcePool获取到了{0}，说明asset:{1}的bundle已经加好了，返回bundle", resourceName...何时获取-1 GameFramework.Resource.ResourceManager.ResourceLoader.AssetObject.Release m_ResourceLoader.m_ResourcePool.Unspawn
destination_host = pchelper.get_obj(content, [vim.HostSystem], host_ip) source_pool = destination_host.parent.resourcePool...vim.ClusterComputeResource], cluster_name) if not cluster: clusters = pchelper.get_all_obj(content, [vim.ResourcePool...list(clusters)[0] if resource_pool: resource_pool = pchelper.search_for_obj(content, [vim.ResourcePool...], resource_pool) else: resource_pool = cluster.resourcePool vmconf = vim.vm.ConfigSpec...podsel storagespec.type = 'create' storagespec.folder = destfolder storagespec.resourcePool
IObjectPool m_AssetPool; //缓存的asset对象池 private IObjectPool m_ResourcePool...GameFramework.Resource.ResourceManager.ResourceLoader.LoadResourceAgent.Start Start执行，任务状态 可以从m_AssetPool中实例出asset，任务做完了Done m_ResourcePool...//从resource对象池中取出，说明任务可以接着执行 ResourceObject resourceObject = m_ResourceLoader.m_ResourcePool.Spawn...GameFramework.Resource.ResourceManager.ResourceLoader.LoadResourceAgent.OnLoadResourceAgentHelperReadFileComplete 创建出ResourceObject，注册到ResourceLoader.m_ResourcePool...//从resource对象池中取出，说明任务可以接着执行 ResourceObject resourceObject = m_ResourceLoader.m_ResourcePool.Spawn
vim.ClusterComputeResource], cluster_name) if resource_pool: resource_pool = get_obj(content, [vim.ResourcePool...], resource_pool) else: resource_pool = cluster.resourcePool relospec = vim.vm.RelocateSpec
rchm8519/article/details/40147745 项目使用C3P0数据库连接池，最近发现一个Exception： 10:22:25.962 [Timer-0] DEBUG c.m.v.resourcepool.BasicResourcePool...$1PooledConnectionResourcePoolManager.destroyResource(C3P0PooledConnectionPool.java:470) [c3p0-0.9.1.2.jar:0.9.1.2] at com.mchange.v2.resourcepool.BasicResourcePool...3c508c99 10:22:25.963 [com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2] DEBUG c.m.v.resourcepool.BasicResourcePool...$1PooledConnectionResourcePoolManager.destroyRe source(C3P0PooledConnectionPool.java:470) at com.mchange.v2.resourcepool.BasicResourcePool
java.lang.Object.wait0(Native Method) java.base/java.lang.Object.wait(Object.java:366) com.mchange.v2.resourcepool.BasicResourcePool.awaitAvailable...(BasicResourcePool.java:1503) com.mchange.v2.resourcepool.BasicResourcePool.prelimCheckoutResource...(BasicResourcePool.java:644) com.mchange.v2.resourcepool.BasicResourcePool.checkoutResource(BasicResourcePool.java
vim.ClusterComputeResource], cluster_name) if resource_pool: resource_pool = get_obj(content, [vim.ResourcePool...], resource_pool) else: resource_pool = cluster.resourcePool vmconf = vim.vm.ConfigSpec...podsel storagespec.type = 'create' storagespec.folder = destfolder storagespec.resourcePool
when --healthz-port is set to 0 (#66138, @wsong) ● fix smb mount issue (#65751, @andyzhangx) ● Fix for resourcepool-path
fact.setBreakOnAcquisitionFailure( break_after_acq_failure ); 创建资源池 rp = fact.createPool( manager ); resourcePool...checkoutPooledConnection public PooledConnection checkoutPooledConnection() throws SQLException { // rp: final ResourcePool...配置项在连接毁灭时如何生效 查找PunchCard的checkoutStackTraceException的usage，发现在毁灭连接的方法中会使用该字段： com.mchange.v2.resourcepool.BasicResourcePool
最常用于解决这类问题的模式是对象池模式 最广为人知的例子可能是ThreadPool 我建议你用int GetResource(ResourceType type, int durationInSeconds)方法实现一个ResourcePool
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