blob: 0bfd874b90f0fa6ed995002a26c321abdf586417 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
|
// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
class FNET_Transport;
namespace storage::spi { struct BucketExecutor; }
namespace vespalib {
class ISequencedTaskExecutor;
class ThreadExecutor;
class InvokeService;
class Clock;
}
namespace proton {
/**
* Interface containing the thread executors that are shared across all document dbs.
*/
class ISharedThreadingService {
public:
virtual ~ISharedThreadingService() = default;
/**
* Returns the executor used for warmup (e.g. index warmup).
*/
virtual vespalib::ThreadExecutor& warmup() = 0;
/**
* Returns the shared executor used for various assisting tasks in a document db.
*
* Example usages include:
* - Disk index fusion.
* - Updating nearest neighbor index (in DenseTensorAttribute).
* - Loading nearest neighbor index (in DenseTensorAttribute).
* - Writing of data in the document store.
*/
virtual vespalib::ThreadExecutor& shared() = 0;
/**
* Returns the sequenced executor used to write index and attribute fields in a document db.
*/
virtual vespalib::ISequencedTaskExecutor& field_writer() = 0;
/**
* Returns an InvokeService intended for regular wakeup calls.
*/
virtual vespalib::InvokeService & invokeService() = 0;
/**
* Returns a shared transport object that can be utilized by multiple services.
*/
virtual FNET_Transport & transport() = 0;
/**
* Returns the executor for running a BucketTask in the persistence layer above the SPI.
*/
virtual storage::spi::BucketExecutor& bucket_executor() = 0;
/**
* Return a very cheap clock.
*/
virtual const vespalib::Clock & clock() const = 0;
};
}
|
