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
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
|
using System;
using System.IO;
namespace Org.BouncyCastle.Utilities.Zlib {
/// <summary>
/// Summary description for DeflaterOutputStream.
/// </summary>
[Obsolete("Use 'ZOutputStream' instead")]
public class ZDeflaterOutputStream : Stream {
protected ZStream z=new ZStream();
protected int flushLevel=JZlib.Z_NO_FLUSH;
private const int BUFSIZE = 4192;
protected byte[] buf=new byte[BUFSIZE];
private byte[] buf1=new byte[1];
protected Stream outp;
public ZDeflaterOutputStream(Stream outp) : this(outp, 6, false) {
}
public ZDeflaterOutputStream(Stream outp, int level) : this(outp, level, false) {
}
public ZDeflaterOutputStream(Stream outp, int level, bool nowrap) {
this.outp=outp;
z.deflateInit(level, nowrap);
}
public override bool CanRead {
get {
// TODO: Add DeflaterOutputStream.CanRead getter implementation
return false;
}
}
public override bool CanSeek {
get {
// TODO: Add DeflaterOutputStream.CanSeek getter implementation
return false;
}
}
public override bool CanWrite {
get {
// TODO: Add DeflaterOutputStream.CanWrite getter implementation
return true;
}
}
public override long Length {
get {
// TODO: Add DeflaterOutputStream.Length getter implementation
return 0;
}
}
public override long Position {
get {
// TODO: Add DeflaterOutputStream.Position getter implementation
return 0;
}
set {
// TODO: Add DeflaterOutputStream.Position setter implementation
}
}
public override void Write(byte[] b, int off, int len) {
if(len==0)
return;
int err;
z.next_in=b;
z.next_in_index=off;
z.avail_in=len;
do{
z.next_out=buf;
z.next_out_index=0;
z.avail_out=BUFSIZE;
err=z.deflate(flushLevel);
if(err!=JZlib.Z_OK)
throw new IOException("deflating: "+z.msg);
if (z.avail_out < BUFSIZE)
{
outp.Write(buf, 0, BUFSIZE-z.avail_out);
}
}
while(z.avail_in>0 || z.avail_out==0);
}
public override long Seek(long offset, SeekOrigin origin) {
// TODO: Add DeflaterOutputStream.Seek implementation
return 0;
}
public override void SetLength(long value) {
// TODO: Add DeflaterOutputStream.SetLength implementation
}
public override int Read(byte[] buffer, int offset, int count) {
// TODO: Add DeflaterOutputStream.Read implementation
return 0;
}
public override void Flush() {
outp.Flush();
}
public override void WriteByte(byte b) {
buf1[0]=(byte)b;
Write(buf1, 0, 1);
}
public void Finish() {
int err;
do{
z.next_out=buf;
z.next_out_index=0;
z.avail_out=BUFSIZE;
err=z.deflate(JZlib.Z_FINISH);
if(err!=JZlib.Z_STREAM_END && err != JZlib.Z_OK)
throw new IOException("deflating: "+z.msg);
if(BUFSIZE-z.avail_out>0){
outp.Write(buf, 0, BUFSIZE-z.avail_out);
}
}
while(z.avail_in>0 || z.avail_out==0);
Flush();
}
public void End() {
if(z==null)
return;
z.deflateEnd();
z.free();
z=null;
}
#if PORTABLE
protected override void Dispose(bool disposing)
{
if (disposing)
{
try{
try{Finish();}
catch (IOException) {}
}
finally{
End();
Platform.Dispose(outp);
outp=null;
}
}
base.Dispose(disposing);
}
#else
public override void Close() {
try{
try{Finish();}
catch (IOException) {}
}
finally{
End();
Platform.Dispose(outp);
outp=null;
}
base.Close();
}
#endif
}
}
|
