-
Notifications
You must be signed in to change notification settings - Fork 0
/
Copy pathname.cpp
235 lines (225 loc) · 13.2 KB
/
name.cpp
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
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
#include "NameNode/namenodeserver.hpp"
#include "fs.hpp"
#include "iostream"
#include "logger.hpp"
using namespace std;
const int fsndn::seg_size = 1048576; //
ndn::Name fsndn::certificateName;
ndn::ptr_lib::shared_ptr<ndn::KeyChain> fsndn::keyChain; // 智能指针
static uint8_t DEFAULT_RSA_PUBLIC_KEY_DER[] = {
0x30, 0x82, 0x01, 0x22, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86,
0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x82, 0x01, 0x0f, 0x00,
0x30, 0x82, 0x01, 0x0a, 0x02, 0x82, 0x01, 0x01, 0x00, 0xb8, 0x09, 0xa7,
0x59, 0x82, 0x84, 0xec, 0x4f, 0x06, 0xfa, 0x1c, 0xb2, 0xe1, 0x38, 0x93,
0x53, 0xbb, 0x7d, 0xd4, 0xac, 0x88, 0x1a, 0xf8, 0x25, 0x11, 0xe4, 0xfa,
0x1d, 0x61, 0x24, 0x5b, 0x82, 0xca, 0xcd, 0x72, 0xce, 0xdb, 0x66, 0xb5,
0x8d, 0x54, 0xbd, 0xfb, 0x23, 0xfd, 0xe8, 0x8e, 0xaf, 0xa7, 0xb3, 0x79,
0xbe, 0x94, 0xb5, 0xb7, 0xba, 0x17, 0xb6, 0x05, 0xae, 0xce, 0x43, 0xbe,
0x3b, 0xce, 0x6e, 0xea, 0x07, 0xdb, 0xbf, 0x0a, 0x7e, 0xeb, 0xbc, 0xc9,
0x7b, 0x62, 0x3c, 0xf5, 0xe1, 0xce, 0xe1, 0xd9, 0x8d, 0x9c, 0xfe, 0x1f,
0xc7, 0xf8, 0xfb, 0x59, 0xc0, 0x94, 0x0b, 0x2c, 0xd9, 0x7d, 0xbc, 0x96,
0xeb, 0xb8, 0x79, 0x22, 0x8a, 0x2e, 0xa0, 0x12, 0x1d, 0x42, 0x07, 0xb6,
0x5d, 0xdb, 0xe1, 0xf6, 0xb1, 0x5d, 0x7b, 0x1f, 0x54, 0x52, 0x1c, 0xa3,
0x11, 0x9b, 0xf9, 0xeb, 0xbe, 0xb3, 0x95, 0xca, 0xa5, 0x87, 0x3f, 0x31,
0x18, 0x1a, 0xc9, 0x99, 0x01, 0xec, 0xaa, 0x90, 0xfd, 0x8a, 0x36, 0x35,
0x5e, 0x12, 0x81, 0xbe, 0x84, 0x88, 0xa1, 0x0d, 0x19, 0x2a, 0x4a, 0x66,
0xc1, 0x59, 0x3c, 0x41, 0x83, 0x3d, 0x3d, 0xb8, 0xd4, 0xab, 0x34, 0x90,
0x06, 0x3e, 0x1a, 0x61, 0x74, 0xbe, 0x04, 0xf5, 0x7a, 0x69, 0x1b, 0x9d,
0x56, 0xfc, 0x83, 0xb7, 0x60, 0xc1, 0x5e, 0x9d, 0x85, 0x34, 0xfd, 0x02,
0x1a, 0xba, 0x2c, 0x09, 0x72, 0xa7, 0x4a, 0x5e, 0x18, 0xbf, 0xc0, 0x58,
0xa7, 0x49, 0x34, 0x46, 0x61, 0x59, 0x0e, 0xe2, 0x6e, 0x9e, 0xd2, 0xdb,
0xfd, 0x72, 0x2f, 0x3c, 0x47, 0xcc, 0x5f, 0x99, 0x62, 0xee, 0x0d, 0xf3,
0x1f, 0x30, 0x25, 0x20, 0x92, 0x15, 0x4b, 0x04, 0xfe, 0x15, 0x19, 0x1d,
0xdc, 0x7e, 0x5c, 0x10, 0x21, 0x52, 0x21, 0x91, 0x54, 0x60, 0x8b, 0x92,
0x41, 0x02, 0x03, 0x01, 0x00, 0x01
};
static uint8_t DEFAULT_RSA_PRIVATE_KEY_DER[] = {
0x30, 0x82, 0x04, 0xa5, 0x02, 0x01, 0x00, 0x02, 0x82, 0x01, 0x01, 0x00,
0xb8, 0x09, 0xa7, 0x59, 0x82, 0x84, 0xec, 0x4f, 0x06, 0xfa, 0x1c, 0xb2,
0xe1, 0x38, 0x93, 0x53, 0xbb, 0x7d, 0xd4, 0xac, 0x88, 0x1a, 0xf8, 0x25,
0x11, 0xe4, 0xfa, 0x1d, 0x61, 0x24, 0x5b, 0x82, 0xca, 0xcd, 0x72, 0xce,
0xdb, 0x66, 0xb5, 0x8d, 0x54, 0xbd, 0xfb, 0x23, 0xfd, 0xe8, 0x8e, 0xaf,
0xa7, 0xb3, 0x79, 0xbe, 0x94, 0xb5, 0xb7, 0xba, 0x17, 0xb6, 0x05, 0xae,
0xce, 0x43, 0xbe, 0x3b, 0xce, 0x6e, 0xea, 0x07, 0xdb, 0xbf, 0x0a, 0x7e,
0xeb, 0xbc, 0xc9, 0x7b, 0x62, 0x3c, 0xf5, 0xe1, 0xce, 0xe1, 0xd9, 0x8d,
0x9c, 0xfe, 0x1f, 0xc7, 0xf8, 0xfb, 0x59, 0xc0, 0x94, 0x0b, 0x2c, 0xd9,
0x7d, 0xbc, 0x96, 0xeb, 0xb8, 0x79, 0x22, 0x8a, 0x2e, 0xa0, 0x12, 0x1d,
0x42, 0x07, 0xb6, 0x5d, 0xdb, 0xe1, 0xf6, 0xb1, 0x5d, 0x7b, 0x1f, 0x54,
0x52, 0x1c, 0xa3, 0x11, 0x9b, 0xf9, 0xeb, 0xbe, 0xb3, 0x95, 0xca, 0xa5,
0x87, 0x3f, 0x31, 0x18, 0x1a, 0xc9, 0x99, 0x01, 0xec, 0xaa, 0x90, 0xfd,
0x8a, 0x36, 0x35, 0x5e, 0x12, 0x81, 0xbe, 0x84, 0x88, 0xa1, 0x0d, 0x19,
0x2a, 0x4a, 0x66, 0xc1, 0x59, 0x3c, 0x41, 0x83, 0x3d, 0x3d, 0xb8, 0xd4,
0xab, 0x34, 0x90, 0x06, 0x3e, 0x1a, 0x61, 0x74, 0xbe, 0x04, 0xf5, 0x7a,
0x69, 0x1b, 0x9d, 0x56, 0xfc, 0x83, 0xb7, 0x60, 0xc1, 0x5e, 0x9d, 0x85,
0x34, 0xfd, 0x02, 0x1a, 0xba, 0x2c, 0x09, 0x72, 0xa7, 0x4a, 0x5e, 0x18,
0xbf, 0xc0, 0x58, 0xa7, 0x49, 0x34, 0x46, 0x61, 0x59, 0x0e, 0xe2, 0x6e,
0x9e, 0xd2, 0xdb, 0xfd, 0x72, 0x2f, 0x3c, 0x47, 0xcc, 0x5f, 0x99, 0x62,
0xee, 0x0d, 0xf3, 0x1f, 0x30, 0x25, 0x20, 0x92, 0x15, 0x4b, 0x04, 0xfe,
0x15, 0x19, 0x1d, 0xdc, 0x7e, 0x5c, 0x10, 0x21, 0x52, 0x21, 0x91, 0x54,
0x60, 0x8b, 0x92, 0x41, 0x02, 0x03, 0x01, 0x00, 0x01, 0x02, 0x82, 0x01,
0x01, 0x00, 0x8a, 0x05, 0xfb, 0x73, 0x7f, 0x16, 0xaf, 0x9f, 0xa9, 0x4c,
0xe5, 0x3f, 0x26, 0xf8, 0x66, 0x4d, 0xd2, 0xfc, 0xd1, 0x06, 0xc0, 0x60,
0xf1, 0x9f, 0xe3, 0xa6, 0xc6, 0x0a, 0x48, 0xb3, 0x9a, 0xca, 0x21, 0xcd,
0x29, 0x80, 0x88, 0x3d, 0xa4, 0x85, 0xa5, 0x7b, 0x82, 0x21, 0x81, 0x28,
0xeb, 0xf2, 0x43, 0x24, 0xb0, 0x76, 0xc5, 0x52, 0xef, 0xc2, 0xea, 0x4b,
0x82, 0x41, 0x92, 0xc2, 0x6d, 0xa6, 0xae, 0xf0, 0xb2, 0x26, 0x48, 0xa1,
0x23, 0x7f, 0x02, 0xcf, 0xa8, 0x90, 0x17, 0xa2, 0x3e, 0x8a, 0x26, 0xbd,
0x6d, 0x8a, 0xee, 0xa6, 0x0c, 0x31, 0xce, 0xc2, 0xbb, 0x92, 0x59, 0xb5,
0x73, 0xe2, 0x7d, 0x91, 0x75, 0xe2, 0xbd, 0x8c, 0x63, 0xe2, 0x1c, 0x8b,
0xc2, 0x6a, 0x1c, 0xfe, 0x69, 0xc0, 0x44, 0xcb, 0x58, 0x57, 0xb7, 0x13,
0x42, 0xf0, 0xdb, 0x50, 0x4c, 0xe0, 0x45, 0x09, 0x8f, 0xca, 0x45, 0x8a,
0x06, 0xfe, 0x98, 0xd1, 0x22, 0xf5, 0x5a, 0x9a, 0xdf, 0x89, 0x17, 0xca,
0x20, 0xcc, 0x12, 0xa9, 0x09, 0x3d, 0xd5, 0xf7, 0xe3, 0xeb, 0x08, 0x4a,
0xc4, 0x12, 0xc0, 0xb9, 0x47, 0x6c, 0x79, 0x50, 0x66, 0xa3, 0xf8, 0xaf,
0x2c, 0xfa, 0xb4, 0x6b, 0xec, 0x03, 0xad, 0xcb, 0xda, 0x24, 0x0c, 0x52,
0x07, 0x87, 0x88, 0xc0, 0x21, 0xf3, 0x02, 0xe8, 0x24, 0x44, 0x0f, 0xcd,
0xa0, 0xad, 0x2f, 0x1b, 0x79, 0xab, 0x6b, 0x49, 0x4a, 0xe6, 0x3b, 0xd0,
0xad, 0xc3, 0x48, 0xb9, 0xf7, 0xf1, 0x34, 0x09, 0xeb, 0x7a, 0xc0, 0xd5,
0x0d, 0x39, 0xd8, 0x45, 0xce, 0x36, 0x7a, 0xd8, 0xde, 0x3c, 0xb0, 0x21,
0x96, 0x97, 0x8a, 0xff, 0x8b, 0x23, 0x60, 0x4f, 0xf0, 0x3d, 0xd7, 0x8f,
0xf3, 0x2c, 0xcb, 0x1d, 0x48, 0x3f, 0x86, 0xc4, 0xa9, 0x00, 0xf2, 0x23,
0x2d, 0x72, 0x4d, 0x66, 0xa5, 0x01, 0x02, 0x81, 0x81, 0x00, 0xdc, 0x4f,
0x99, 0x44, 0x0d, 0x7f, 0x59, 0x46, 0x1e, 0x8f, 0xe7, 0x2d, 0x8d, 0xdd,
0x54, 0xc0, 0xf7, 0xfa, 0x46, 0x0d, 0x9d, 0x35, 0x03, 0xf1, 0x7c, 0x12,
0xf3, 0x5a, 0x9d, 0x83, 0xcf, 0xdd, 0x37, 0x21, 0x7c, 0xb7, 0xee, 0xc3,
0x39, 0xd2, 0x75, 0x8f, 0xb2, 0x2d, 0x6f, 0xec, 0xc6, 0x03, 0x55, 0xd7,
0x00, 0x67, 0xd3, 0x9b, 0xa2, 0x68, 0x50, 0x6f, 0x9e, 0x28, 0xa4, 0x76,
0x39, 0x2b, 0xb2, 0x65, 0xcc, 0x72, 0x82, 0x93, 0xa0, 0xcf, 0x10, 0x05,
0x6a, 0x75, 0xca, 0x85, 0x35, 0x99, 0xb0, 0xa6, 0xc6, 0xef, 0x4c, 0x4d,
0x99, 0x7d, 0x2c, 0x38, 0x01, 0x21, 0xb5, 0x31, 0xac, 0x80, 0x54, 0xc4,
0x18, 0x4b, 0xfd, 0xef, 0xb3, 0x30, 0x22, 0x51, 0x5a, 0xea, 0x7d, 0x9b,
0xb2, 0x9d, 0xcb, 0xba, 0x3f, 0xc0, 0x1a, 0x6b, 0xcd, 0xb0, 0xe6, 0x2f,
0x04, 0x33, 0xd7, 0x3a, 0x49, 0x71, 0x02, 0x81, 0x81, 0x00, 0xd5, 0xd9,
0xc9, 0x70, 0x1a, 0x13, 0xb3, 0x39, 0x24, 0x02, 0xee, 0xb0, 0xbb, 0x84,
0x17, 0x12, 0xc6, 0xbd, 0x65, 0x73, 0xe9, 0x34, 0x5d, 0x43, 0xff, 0xdc,
0xf8, 0x55, 0xaf, 0x2a, 0xb9, 0xe1, 0xfa, 0x71, 0x65, 0x4e, 0x50, 0x0f,
0xa4, 0x3b, 0xe5, 0x68, 0xf2, 0x49, 0x71, 0xaf, 0x15, 0x88, 0xd7, 0xaf,
0xc4, 0x9d, 0x94, 0x84, 0x6b, 0x5b, 0x10, 0xd5, 0xc0, 0xaa, 0x0c, 0x13,
0x62, 0x99, 0xc0, 0x8b, 0xfc, 0x90, 0x0f, 0x87, 0x40, 0x4d, 0x58, 0x88,
0xbd, 0xe2, 0xba, 0x3e, 0x7e, 0x2d, 0xd7, 0x69, 0xa9, 0x3c, 0x09, 0x64,
0x31, 0xb6, 0xcc, 0x4d, 0x1f, 0x23, 0xb6, 0x9e, 0x65, 0xd6, 0x81, 0xdc,
0x85, 0xcc, 0x1e, 0xf1, 0x0b, 0x84, 0x38, 0xab, 0x93, 0x5f, 0x9f, 0x92,
0x4e, 0x93, 0x46, 0x95, 0x6b, 0x3e, 0xb6, 0xc3, 0x1b, 0xd7, 0x69, 0xa1,
0x0a, 0x97, 0x37, 0x78, 0xed, 0xd1, 0x02, 0x81, 0x80, 0x33, 0x18, 0xc3,
0x13, 0x65, 0x8e, 0x03, 0xc6, 0x9f, 0x90, 0x00, 0xae, 0x30, 0x19, 0x05,
0x6f, 0x3c, 0x14, 0x6f, 0xea, 0xf8, 0x6b, 0x33, 0x5e, 0xee, 0xc7, 0xf6,
0x69, 0x2d, 0xdf, 0x44, 0x76, 0xaa, 0x32, 0xba, 0x1a, 0x6e, 0xe6, 0x18,
0xa3, 0x17, 0x61, 0x1c, 0x92, 0x2d, 0x43, 0x5d, 0x29, 0xa8, 0xdf, 0x14,
0xd8, 0xff, 0xdb, 0x38, 0xef, 0xb8, 0xb8, 0x2a, 0x96, 0x82, 0x8e, 0x68,
0xf4, 0x19, 0x8c, 0x42, 0xbe, 0xcc, 0x4a, 0x31, 0x21, 0xd5, 0x35, 0x6c,
0x5b, 0xa5, 0x7c, 0xff, 0xd1, 0x85, 0x87, 0x28, 0xdc, 0x97, 0x75, 0xe8,
0x03, 0x80, 0x1d, 0xfd, 0x25, 0x34, 0x41, 0x31, 0x21, 0x12, 0x87, 0xe8,
0x9a, 0xb7, 0x6a, 0xc0, 0xc4, 0x89, 0x31, 0x15, 0x45, 0x0d, 0x9c, 0xee,
0xf0, 0x6a, 0x2f, 0xe8, 0x59, 0x45, 0xc7, 0x7b, 0x0d, 0x6c, 0x55, 0xbb,
0x43, 0xca, 0xc7, 0x5a, 0x01, 0x02, 0x81, 0x81, 0x00, 0xab, 0xf4, 0xd5,
0xcf, 0x78, 0x88, 0x82, 0xc2, 0xdd, 0xbc, 0x25, 0xe6, 0xa2, 0xc1, 0xd2,
0x33, 0xdc, 0xef, 0x0a, 0x97, 0x2b, 0xdc, 0x59, 0x6a, 0x86, 0x61, 0x4e,
0xa6, 0xc7, 0x95, 0x99, 0xa6, 0xa6, 0x55, 0x6c, 0x5a, 0x8e, 0x72, 0x25,
0x63, 0xac, 0x52, 0xb9, 0x10, 0x69, 0x83, 0x99, 0xd3, 0x51, 0x6c, 0x1a,
0xb3, 0x83, 0x6a, 0xff, 0x50, 0x58, 0xb7, 0x28, 0x97, 0x13, 0xe2, 0xba,
0x94, 0x5b, 0x89, 0xb4, 0xea, 0xba, 0x31, 0xcd, 0x78, 0xe4, 0x4a, 0x00,
0x36, 0x42, 0x00, 0x62, 0x41, 0xc6, 0x47, 0x46, 0x37, 0xea, 0x6d, 0x50,
0xb4, 0x66, 0x8f, 0x55, 0x0c, 0xc8, 0x99, 0x91, 0xd5, 0xec, 0xd2, 0x40,
0x1c, 0x24, 0x7d, 0x3a, 0xff, 0x74, 0xfa, 0x32, 0x24, 0xe0, 0x11, 0x2b,
0x71, 0xad, 0x7e, 0x14, 0xa0, 0x77, 0x21, 0x68, 0x4f, 0xcc, 0xb6, 0x1b,
0xe8, 0x00, 0x49, 0x13, 0x21, 0x02, 0x81, 0x81, 0x00, 0xb6, 0x18, 0x73,
0x59, 0x2c, 0x4f, 0x92, 0xac, 0xa2, 0x2e, 0x5f, 0xb6, 0xbe, 0x78, 0x5d,
0x47, 0x71, 0x04, 0x92, 0xf0, 0xd7, 0xe8, 0xc5, 0x7a, 0x84, 0x6b, 0xb8,
0xb4, 0x30, 0x1f, 0xd8, 0x0d, 0x58, 0xd0, 0x64, 0x80, 0xa7, 0x21, 0x1a,
0x48, 0x00, 0x37, 0xd6, 0x19, 0x71, 0xbb, 0x91, 0x20, 0x9d, 0xe2, 0xc3,
0xec, 0xdb, 0x36, 0x1c, 0xca, 0x48, 0x7d, 0x03, 0x32, 0x74, 0x1e, 0x65,
0x73, 0x02, 0x90, 0x73, 0xd8, 0x3f, 0xb5, 0x52, 0x35, 0x79, 0x1c, 0xee,
0x93, 0xa3, 0x32, 0x8b, 0xed, 0x89, 0x98, 0xf1, 0x0c, 0xd8, 0x12, 0xf2,
0x89, 0x7f, 0x32, 0x23, 0xec, 0x67, 0x66, 0x52, 0x83, 0x89, 0x99, 0x5e,
0x42, 0x2b, 0x42, 0x4b, 0x84, 0x50, 0x1b, 0x3e, 0x47, 0x6d, 0x74, 0xfb,
0xd1, 0xa6, 0x10, 0x20, 0x6c, 0x6e, 0xbe, 0x44, 0x3f, 0xb9, 0xfe, 0xbc,
0x8d, 0xda, 0xcb, 0xea, 0x8f
};
void
init_daemon(std::string dir);
int
main(int argc, char *argv[])
{
cout<< "You can use -d make namenode run as daemnon"<< endl;
Log<Output2FILE>::reportingLevel() = LOG_DEBUG;
FILE *log_fd;
if (argc >= 2 && strcmp(argv[1], "-d") == 0) {
FILE_LOG(LOG_DEBUG) << "Running as daemon" << endl;
FILE_LOG(LOG_DEBUG) << "log is save to name.log" << endl;
init_daemon("/tmp");
log_fd = fopen("/home/anson/Documents/Code/fs-ndn/build/name.log", "w");
if (log_fd == NULL) {
Output2FILE::stream() = stdout;
} else {
Output2FILE::stream() = log_fd;
}
}
// 配置签名
ndn::ptr_lib::shared_ptr<ndn::MemoryIdentityStorage> identityStorage(
new ndn::MemoryIdentityStorage());
ndn::ptr_lib::shared_ptr<ndn::MemoryPrivateKeyStorage> privateKeyStorage(
new ndn::MemoryPrivateKeyStorage());
fsndn::keyChain.reset(
new ndn::KeyChain(ndn::ptr_lib::make_shared<ndn::IdentityManager>(
identityStorage, privateKeyStorage),
ndn::ptr_lib::shared_ptr<ndn::NoVerifyPolicyManager>(
new ndn::NoVerifyPolicyManager())));
ndn::Name keyName("/testname/DSK-123");
fsndn::certificateName = keyName.getSubName(0, keyName.size() - 1)
.append("KEY")
.append(keyName.get(keyName.size() - 1))
.append("ID-CERT")
.append("0");
identityStorage->addKey(keyName,
ndn::KEY_TYPE_RSA,
ndn::Blob(DEFAULT_RSA_PUBLIC_KEY_DER,
sizeof(DEFAULT_RSA_PUBLIC_KEY_DER)));
privateKeyStorage->setKeyPairForKeyName(
keyName,
ndn::KEY_TYPE_RSA,
DEFAULT_RSA_PUBLIC_KEY_DER,
sizeof(DEFAULT_RSA_PUBLIC_KEY_DER),
DEFAULT_RSA_PRIVATE_KEY_DER,
sizeof(DEFAULT_RSA_PRIVATE_KEY_DER));
FILE_LOG(LOG_DEBUG) << "Start NameNode" << endl;
NameNodeSerImpl service;
string server_address("hadoop-master:50005");
ServerBuilder builder;
// Listen on the given address without any authentication mechanism.
builder.AddListeningPort(server_address, grpc::InsecureServerCredentials());
// Register "service" as the instance through which we'll communicate with
// clients. In this case it corresponds to an *synchronous* service.
builder.RegisterService(&service);
// Finally assemble the server.
std::unique_ptr<Server> server(builder.BuildAndStart());
FILE_LOG(LOG_DEBUG) << "Server listening on " << server_address
<< std::endl;
// Wait for the server to shutdown. Note that some other thread must be
// responsible for shutting down the server for this call to ever return.
server->Wait();
return 0;
}
void
init_daemon(std::string dir)
{
int pid;
int i;
if ((pid = fork()))
exit(0); //是父进程,结束父进程
else if (pid < 0)
exit(1); // fork失败,退出
//是第一子进程,后台继续执行
setsid(); //第一子进程成为新的会话组长和进程组长
//并与控制终端分离
if ((pid = fork()))
exit(0); //是第一子进程,结束第一子进程
else if (pid < 0)
exit(1); // fork失败,退出
//是第二子进程,继续
//第二子进程不再是会话组长
for (i = 0; i < NOFILE; ++i) //关闭打开的文件描述符
close(i);
chdir(dir.c_str()); //改变工作目录到/tmp
umask(0); //重设文件创建掩模
return;
}