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
130
131
132
133
134
135
136
137
|
/*=========================================================================
Program: The OpenIGTLink Library
Language: C++
Web page: http://openigtlink.org/
Copyright (c) Insight Software Consortium. All rights reserved.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#include "igtlStringMessage.h"
#include "igtl_header.h"
#include "igtl_string.h"
#include <cstring>
// Disable warning C4996 (strncpy() may be unsafe) in Windows.
#define _CRT_SECURE_NO_WARNINGS
namespace igtl {
StringMessage::StringMessage()
{
this->m_SendMessageType = "STRING";
this->m_Encoding = IGTL_STRING_MESSAGE_DEFAULT_ENCODING;
this->m_String.clear();
}
StringMessage::~StringMessage()
{
}
int StringMessage::SetString(const char* string)
{
if (strlen(string) > 0xFFFF) /* If the length is beyond the range of unsigned short */
{
return 0;
}
this->m_String = string;
return (int) this->m_String.length();
}
int StringMessage::SetString(const std::string & string)
{
if (string.length() > 0xFFFF) /* If the length is beyond the range of unsigned short */
{
return 0;
}
this->m_String = string;
return (int) this->m_String.length();
}
int StringMessage::SetEncoding(igtlUint16 enc)
{
// TODO: the argument should be validated before it is substituted
this->m_Encoding = enc;
return 1;
}
const char* StringMessage::GetString()
{
return this->m_String.c_str();
}
igtlUint16 StringMessage::GetEncoding()
{
return this->m_Encoding;
}
int StringMessage::CalculateContentBufferSize()
{
// Body pack size is the sum of ENCODING, LENGTH and STRING fields
return sizeof(igtlUint16)*2 + this->m_String.length();
}
int StringMessage::PackContent()
{
// Allocate buffer
AllocateBuffer();
igtl_string_header * string_header;
char * string;
// Set pointers
#if OpenIGTLink_HEADER_VERSION >= 2
string_header = (igtl_string_header*) this->m_Content;
string = (char *) this->m_Content + sizeof(igtlUint16)*2;
#elif OpenIGTLink_PROTOCOL_VERSION <=2
string_header = (igtl_string_header*) this->m_Body;
string = (char *) this->m_Body + sizeof(igtlUint16)*2;
#endif
// Copy data
string_header->encoding = static_cast<igtlUint16>(this->m_Encoding);
string_header->length = static_cast<igtlUint16>(this->m_String.length());
strncpy(string, this->m_String.c_str(), string_header->length);
// Convert byte order from host to network
igtl_string_convert_byte_order(string_header);
return 1;
}
int StringMessage::UnpackContent()
{
igtl_string_header * string_header;
char * string;
#if OpenIGTLink_HEADER_VERSION >= 2
string_header = (igtl_string_header*) (this->m_Content);
string = (char *) this->m_Content + sizeof(igtlUint16)*2;
#elif OpenIGTLink_PROTOCOL_VERSION <=2
string_header = (igtl_string_header*) this->m_Body;
string = (char *) this->m_Body + sizeof(igtlUint16)*2;
#endif
// Convert byte order from network to host
igtl_string_convert_byte_order(string_header);
// Copy data
this->m_Encoding = string_header->encoding;
this->m_String.clear();
this->m_String.append(string, string_header->length);
return 1;
}
} // namespace igtl
|
