本文整理汇总了Java中java.nio.channels.spi.SelectorProvider.openSelector方法的典型用法代码示例。如果您正苦于以下问题：Java SelectorProvider.openSelector方法的具体用法？Java SelectorProvider.openSelector怎么用？Java SelectorProvider.openSelector使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类java.nio.channels.spi.SelectorProvider的用法示例。
在下文中一共展示了SelectorProvider.openSelector方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: openSelector
import java.nio.channels.spi.SelectorProvider; //导入方法依赖的package包/类
private Selector openSelector() {
Selector result = null;
// 在linux平台，尽量启用epoll实现
if (isLinuxPlatform()) {
try {
final Class<?> providerClazz = Class.forName("sun.nio.ch.EPollSelectorProvider");
if (providerClazz != null) {
final Method method = providerClazz.getMethod("provider");
if (method != null) {
final SelectorProvider selectorProvider = (SelectorProvider) method.invoke(null);
if (selectorProvider != null) {
result = selectorProvider.openSelector();
}
}
}
} catch (final Exception ignored) {
}
}
if (result == null) {
try {
result = SelectorProvider.provider().openSelector();
} catch (IOException e) {
throw new NioException("open selector error:" + e.getMessage(), e);
}
}
return result;
}
示例2: get
import java.nio.channels.spi.SelectorProvider; //导入方法依赖的package包/类
/**
* Takes one selector from end of LRU list of free selectors.
* If there are no selectors awailable, it creates a new selector.
* Also invokes trimIdleSelectors().
*
* @param channel
* @return
* @throws IOException
*/
private synchronized SelectorInfo get(SelectableChannel channel)
throws IOException {
SelectorInfo selInfo = null;
SelectorProvider provider = channel.provider();
// pick the list : rarely there is more than one provider in use.
ProviderInfo pList = providerList;
while (pList != null && pList.provider != provider) {
pList = pList.next;
}
if (pList == null) {
//LOG.info("Creating new ProviderInfo : " + provider.toString());
pList = new ProviderInfo();
pList.provider = provider;
pList.queue = new LinkedList<SelectorInfo>();
pList.next = providerList;
providerList = pList;
}
LinkedList<SelectorInfo> queue = pList.queue;
if (queue.isEmpty()) {
Selector selector = provider.openSelector();
selInfo = new SelectorInfo();
selInfo.selector = selector;
selInfo.queue = queue;
} else {
selInfo = queue.removeLast();
}
trimIdleSelectors(Time.now());
return selInfo;
}
示例3: get
import java.nio.channels.spi.SelectorProvider; //导入方法依赖的package包/类
/**
* Takes one selector from end of LRU list of free selectors.
* If there are no selectors awailable, it creates a new selector.
* Also invokes trimIdleSelectors().
*
* @param channel
* @return
* @throws IOException
*/
private synchronized SelectorInfo get(SelectableChannel channel)
throws IOException {
SelectorInfo selInfo = null;
SelectorProvider provider = channel.provider();
// pick the list : rarely there is more than one provider in use.
ProviderInfo pList = providerList;
while (pList != null && pList.provider != provider) {
pList = pList.next;
}
if (pList == null) {
//LOG.info("Creating new ProviderInfo : " + provider.toString());
pList = new ProviderInfo();
pList.provider = provider;
pList.queue = new LinkedList<SelectorInfo>();
pList.next = providerList;
providerList = pList;
}
LinkedList<SelectorInfo> queue = pList.queue;
if (queue.isEmpty()) {
Selector selector = provider.openSelector();
selInfo = new SelectorInfo();
selInfo.selector = selector;
selInfo.queue = queue;
} else {
selInfo = queue.removeLast();
}
trimIdleSelectors(System.currentTimeMillis());
return selInfo;
}