blob: 5c5de0a4da4fb11b8fa787cd0570a4d764df0e81 (
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
|
// $Id$
//===================================================================
//
// = FILENAME
// File_i.h
//
// = DESCRIPTION
// Defines the implementation classes for the File IDL
// module
//
// = AUTHOR
// Irfan Pyarali
//
//====================================================================
#include "FileS.h"
class FileImpl
{
// = TITLE
// FileImpl class provides the namespace for the File IDL module .
public:
class Descriptor : public POA_File::Descriptor
{
// = TITLE
// Descriptor implements the Descriptor interface in the File
// Module A single Descriptor servant can serve multiple object
// references
public:
Descriptor (PortableServer::POA_ptr poa);
// Constructor
~Descriptor (void);
// Destructor
PortableServer::POA_ptr _default_POA (void);
// Returns the default POA of this object
virtual CORBA::Long write (const File::Descriptor::DataBuffer &buffer);
// write buffer to File corresponding to this Descriptor
virtual File::Descriptor::DataBuffer *read (CORBA::Long num_bytes);
virtual CORBA::ULong lseek (CORBA::ULong offset,
CORBA::Long whence);
// seek to the offset in file from whence
virtual void destroy (void);
// closes the file corresponding to the requested ObjectID
private:
ACE_HANDLE fd (void);
// Extracts the ACE_HANDLE from the objectID
PortableServer::POA_var poa_;
};
class System : public POA_File::System
{
// = TITLE
// File System implementation class.
public:
System (CORBA::ORB_ptr orb,
PortableServer::POA_ptr poa);
// Constructor, Creates a single File Descriptor Servant and
// registers it with the POA as the Default Servant
~System (void);
//Destructor
PortableServer::POA_ptr _default_POA (void);
//Returns the default POA of this object
File::Descriptor_ptr open (const char *file_name,
CORBA::Long flags);
// Opens a file ,creates a Descriptor reference with the
// ACE_HANDLE and returns that reference
void shutdown (void);
private:
CORBA::ORB_var orb_;
PortableServer::POA_var poa_;
Descriptor fd_servant_;
// The single File Descriptor servant which serves requests for
// any Descriptor object under poa_.
};
};
|
