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
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Communicator client code, released
* March 31, 1998.
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998-1999
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "nsIInputStream.idl"
#include "nsrootidl.idl"
/**
* This interface allows consumption of primitive data types from a "binary
* stream" containing untagged, big-endian binary data, i.e. as produced by an
* implementation of nsIBinaryOutputStream. This might be used, for example,
* to implement network protocols or to read from architecture-neutral disk
* files, i.e. ones that can be read and written by both big-endian and
* little-endian platforms.
*
* @See nsIBinaryOutputStream
*/
[scriptable, uuid(7b456cb0-8772-11d3-90cf-0040056a906e)]
interface nsIBinaryInputStream : nsIInputStream {
void setInputStream(in nsIInputStream aInputStream);
PRBool readBoolean();
PRUint8 read8();
PRUint16 read16();
PRUint32 read32();
PRUint64 read64();
float readFloat();
double readDouble();
/**
* Read a NUL-terminated 8-bit char* string from a binary stream.
*/
ACString readCString();
/**
* Read a NUL-terminated 16-bit PRUnichar* string from a binary stream.
*/
AString readString();
/**
* Read an opaque byte array from a binary stream.
*/
void readBytes(in PRUint32 aLength,
[size_is(aLength), retval] out string aString);
/**
* Read an opaque byte array from a binary stream, storing the results
* as an array of PRUint8s.
*/
void readByteArray(in PRUint32 aLength,
[array, size_is(aLength), retval] out PRUint8 aBytes);
};
%{C++
inline nsresult
NS_ReadOptionalCString(nsIBinaryInputStream* aStream, nsACString& aResult)
{
PRBool nonnull;
nsresult rv = aStream->ReadBoolean(&nonnull);
if (NS_SUCCEEDED(rv)) {
if (nonnull)
rv = aStream->ReadCString(aResult);
else
aResult.Truncate();
}
return rv;
}
inline nsresult
NS_ReadOptionalString(nsIBinaryInputStream* aStream, nsAString& aResult)
{
PRBool nonnull;
nsresult rv = aStream->ReadBoolean(&nonnull);
if (NS_SUCCEEDED(rv)) {
if (nonnull)
rv = aStream->ReadString(aResult);
else
aResult.Truncate();
}
return rv;
}
%}
|
