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# OSLogStore

A set of entries from the unified logging system.

```
class OSLogStore
```

## Overview

Instances of this class represent a fixed range of entries and may be backed by a `logarchive` or your Mac’s local store.

In Swift, Use the [`getEntries(with:at:matching:)`](/documentation/OSLog/OSLogStore/getEntries(with:at:matching:)) function to retrieve a filtered array of log entries.

In Objective-C, use instances of this class to create [`OSLogEnumerator`](/documentation/OSLog/OSLogEnumerator) objects. One store can support multiple `OSLogEnumerator` instances concurrently.

## Topics

### Creating Log Stores

[`init(url:)`](/documentation/OSLog/OSLogStore/init(url:)-5v3w7)

Creates a log store based on a log archive.

[`local()`](/documentation/OSLog/OSLogStore/local())

Creates a log store representing the Mac’s local store.

### Accessing Position

[`position(date:)`](/documentation/OSLog/OSLogStore/position(date:))

Returns a position representing the time specified.

[`position(timeIntervalSinceEnd:)`](/documentation/OSLog/OSLogStore/position(timeIntervalSinceEnd:))

Returns a position representing time since the end of the time range that the entries span.

[`position(timeIntervalSinceLatestBoot:)`](/documentation/OSLog/OSLogStore/position(timeIntervalSinceLatestBoot:))

Returns a position representing time since the last boot in the series of entries.

### Accessing Entries

[`getEntries(with:at:matching:)`](/documentation/OSLog/OSLogStore/getEntries(with:at:matching:))

Returns a sequence of log entries filtered by the parameters passed in.

[`entriesEnumeratorAndReturnError:`](/documentation/OSLog/OSLogStore/entriesEnumeratorAndReturnError:)

Returns a log enumerator with default options for viewing the entries.

[`entriesEnumeratorWithOptions:position:predicate:error:`](/documentation/OSLog/OSLogStore/entriesEnumeratorWithOptions:position:predicate:error:)

Returns a log enumerator based on an underlying store.

### Initializers

[`init()`](/documentation/OSLog/OSLogStore/init())

[`init(scope:)`](/documentation/OSLog/OSLogStore/init(scope:))

### Enumerations

[`OSLogStore.Scope`](/documentation/OSLog/OSLogStore/Scope)


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