blob: 17ce8fbd8aaddccaba68896e0a83cec53d17deb0 (
plain)
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
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
/* Copyright (C) 2003 MySQL AB
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
#ifndef SIMBLOCKASYNCFILESYSTEM_H
#define SIMBLOCKASYNCFILESYSTEM_H
#include <pc.hpp>
#include <SimulatedBlock.hpp>
#include "Pool.hpp"
#include "AsyncFile.hpp"
#include "OpenFiles.hpp"
// Because one NDB Signal request can result in multiple requests to
// AsyncFile one class must be made responsible to keep track
// of all out standing request and when all are finished the result
// must be reported to the sending block.
class Ndbfs : public SimulatedBlock
{
public:
Ndbfs(const class Configuration & conf);
virtual ~Ndbfs();
protected:
BLOCK_DEFINES(Ndbfs);
// The signal processing functions
void execREAD_CONFIG_REQ(Signal* signal);
void execDUMP_STATE_ORD(Signal* signal);
void execFSOPENREQ(Signal* signal);
void execFSCLOSEREQ(Signal* signal);
void execFSWRITEREQ(Signal* signal);
void execFSREADREQ(Signal* signal);
void execFSSYNCREQ(Signal* signal);
void execFSAPPENDREQ(Signal* signal);
void execFSREMOVEREQ(Signal* signal);
void execSTTOR(Signal* signal);
void execCONTINUEB(Signal* signal);
bool scanningInProgress;
Uint16 newId();
private:
int forward(AsyncFile *file, Request* Request);
void report(Request* request, Signal* signal);
bool scanIPC(Signal* signal);
// Declared but not defined
Ndbfs(Ndbfs & );
void operator = (Ndbfs &);
// Used for uniqe number generation
Uint16 theLastId;
BlockReference cownref;
// Communication from files
MemoryChannel<Request> theFromThreads;
Pool<Request>* theRequestPool;
AsyncFile* createAsyncFile();
AsyncFile* getIdleFile();
Vector<AsyncFile*> theFiles; // List all created AsyncFiles
Vector<AsyncFile*> theIdleFiles; // List of idle AsyncFiles
OpenFiles theOpenFiles; // List of open AsyncFiles
const char * theFileSystemPath;
const char * theBackupFilePath;
// Statistics variables
Uint32 m_maxOpenedFiles;
// Limit for max number of AsyncFiles created
Uint32 m_maxFiles;
void readWriteRequest( int action, Signal * signal );
static int translateErrno(int aErrno);
};
class VoidFs : public SimulatedBlock
{
public:
VoidFs(const class Configuration & conf);
virtual ~VoidFs();
protected:
BLOCK_DEFINES(VoidFs);
// The signal processing functions
void execREAD_CONFIG_REQ(Signal* signal);
void execDUMP_STATE_ORD(Signal* signal);
void execFSOPENREQ(Signal* signal);
void execFSCLOSEREQ(Signal* signal);
void execFSWRITEREQ(Signal* signal);
void execFSREADREQ(Signal* signal);
void execFSSYNCREQ(Signal* signal);
void execFSAPPENDREQ(Signal* signal);
void execFSREMOVEREQ(Signal* signal);
void execSTTOR(Signal* signal);
private:
// Declared but not defined
VoidFs(VoidFs & );
void operator = (VoidFs &);
// Used for uniqe number generation
Uint32 c_maxFileNo;
};
#endif
|
