Storage (perfmark-impl 0.27.0 API)

java.lang.Object
- io.perfmark.impl.Storage

```
public final class Storage
extends java.lang.Object
```
Storage is responsible for storing and returning recorded marks. This is a low level class and not intended for use by users. Instead, the TraceEventWriter and TraceEventViewer classes provide easier to use APIs for accessing PerfMark data.
This code is NOT API stable, and may be removed in the future, or changed without notice.

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static long`	`getInitNanoTime()`
`static java.util.List<MarkList>`	`read()`	Returns a list of `MarkList`s across all reachable threads.
`static MarkList`	`readForTest()`	May Return `null`.
`static void`	`registerMarkHolder(MarkHolder markHolder)`	Note: it is the responsibility of the caller to keep a strong reference to the markHolder.
`static void`	`resetForAll()`	Removes the global Read index on all storage, but leaves local storage in place.
`static void`	`resetForThread()`	Removes all data for the calling Thread.
`static void`	`unregisterMarkHolder(MarkHolder markHolder)`	This method is meant to aid in cleanup.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - getInitNanoTime
```
public static long getInitNanoTime()
```
  - read
```
public static java.util.List<MarkList> read()
```
    Returns a list of MarkLists across all reachable threads. MarkLists with no Marks may be removed.
    
    Returns:
    
    all reachable MarkLists.
  - resetForThread
```
public static void resetForThread()
```
    Removes all data for the calling Thread. Other threads may Still have stored data.
  - resetForAll
```
public static void resetForAll()
```
    Removes the global Read index on all storage, but leaves local storage in place. Because writer threads may still be writing to the same buffer (which they have a strong ref to), this function only removed data that is truly unwritable anymore. In addition, it captures a timestamp to which marks to include when reading. Thus, the data isn't fully removed. To fully remove all data, each tracing thread must call resetForThread().
  - registerMarkHolder
```
public static void registerMarkHolder(MarkHolder markHolder)
```
    Note: it is the responsibility of the caller to keep a strong reference to the markHolder.
  - unregisterMarkHolder
```
public static void unregisterMarkHolder(MarkHolder markHolder)
```
    This method is meant to aid in cleanup. It is not efficient so don't use it in production.
  - readForTest
```
public static MarkList readForTest()
```
    May Return null.