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
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
// Copyright 2017 Yahoo Holdings. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include "domain.h"
#include <vespa/vespalib/util/document_runnable.h>
#include <vespa/vespalib/util/threadstackexecutor.h>
#include <vespa/document/util/queue.h>
#include <vespa/fnet/frt/invokable.h>
#include <mutex>
class FRT_Supervisor;
class FNET_Transport;
namespace search::common { class FileHeaderContext; }
namespace search::transactionlog {
class TransLogServerExplorer;
class TransLogServer : public document::Runnable, private FRT_Invokable, public Writer
{
public:
friend class TransLogServerExplorer;
typedef std::unique_ptr<TransLogServer> UP;
typedef std::shared_ptr<TransLogServer> SP;
TransLogServer(const vespalib::string &name, int listenPort, const vespalib::string &baseDir,
const common::FileHeaderContext &fileHeaderContext, const DomainConfig & cfg, size_t maxThreads);
TransLogServer(const vespalib::string &name, int listenPort, const vespalib::string &baseDir,
const common::FileHeaderContext &fileHeaderContext, const DomainConfig & cfg);
TransLogServer(const vespalib::string &name, int listenPort, const vespalib::string &baseDir,
const common::FileHeaderContext &fileHeaderContext);
~TransLogServer() override;
DomainStats getDomainStats() const;
void commit(const vespalib::string & domainName, const Packet & packet, DoneCallback done) override;
TransLogServer & setDomainConfig(const DomainConfig & cfg);
class Session
{
bool _down;
public:
typedef std::shared_ptr<Session> SP;
Session() : _down(false) { }
bool getDown() const { return _down; }
void setDown() { _down = true; }
};
private:
bool onStop() override;
void run() override;
void exportRPC(FRT_Supervisor & supervisor);
void relayToThreadRPC(FRT_RPCRequest *req);
void createDomain(FRT_RPCRequest *req);
void deleteDomain(FRT_RPCRequest *req);
void openDomain(FRT_RPCRequest *req);
void listDomains(FRT_RPCRequest *req);
void domainStatus(FRT_RPCRequest *req);
void domainCommit(FRT_RPCRequest *req);
void domainSessionRun(FRT_RPCRequest *req);
void domainPrune(FRT_RPCRequest *req);
void domainVisit(FRT_RPCRequest *req);
void domainSessionClose(FRT_RPCRequest *req);
void domainSync(FRT_RPCRequest *req);
void initSession(FRT_RPCRequest *req);
void finiSession(FRT_RPCRequest *req);
void downSession(FRT_RPCRequest *req);
std::vector<vespalib::string> getDomainNames();
Domain::SP findDomain(vespalib::stringref name);
vespalib::string dir() const { return _baseDir + "/" + _name; }
vespalib::string domainList() const { return dir() + "/" + _name + ".domains"; }
static const Session::SP & getSession(FRT_RPCRequest *req);
using DomainList = std::map<vespalib::string, Domain::SP >;
vespalib::string _name;
vespalib::string _baseDir;
DomainConfig _domainConfig;
vespalib::ThreadStackExecutor _commitExecutor;
vespalib::ThreadStackExecutor _sessionExecutor;
std::unique_ptr<FastOS_ThreadPool> _threadPool;
std::unique_ptr<FNET_Transport> _transport;
std::unique_ptr<FRT_Supervisor> _supervisor;
DomainList _domains;
mutable std::mutex _lock; // Protects _domains
std::mutex _fileLock; // Protects the creating and deleting domains including file system operations.
document::Queue<FRT_RPCRequest *> _reqQ;
const common::FileHeaderContext &_fileHeaderContext;
using Guard = std::lock_guard<std::mutex>;
};
}
|
