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
|
[[!meta copyright="Copyright © 2008, 2009 Free Software Foundation, Inc."]]
[[!meta license="""[[!toggle id="license" text="GFDL 1.2+"]][[!toggleable
id="license" text="Permission is granted to copy, distribute and/or modify this
document under the terms of the GNU Free Documentation License, Version 1.2 or
any later version published by the Free Software Foundation; with no Invariant
Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license
is included in the section entitled
[[GNU Free Documentation License|/fdl]]."]]"""]]
Sergiu Ivanov
Mail: <mailto:unlimitedscolobb@gmail.com>
# Google Summer of Code: 2009 Project
**Unionmount**: The goal of this project is to make it possible to
mount a translator on a node in such a way that the contents of the
node be merged with the (virtual) filesystem published by the
translator.
For documentation, see [[hurd/translator/unionmount]].
---
## Roadmap
### DONE
* Make unionfs build.
* Change the command line parsing in unionfs to comply with the
requirements of unionmount.
* Start the mountee.
### TODO
* Include the filesystem published by the mountee in the list of
merged filesystems.
* Use a different (better?) implementation idea.
* Write documentation.
* Push the unionmount branch (*master-scolobb-unionmount*) to the
unionfs repository.
* Derive an independent repository based on the
*master-scolobb-unionmount* branch.
---
# Google Summer of Code: 2008 Project: Namespace-based translator selection
---
## Current Task
Write the filesystem proxy for namespace-based translator selection (*nsmux*).
The code is at <http://github.com/scolobb/nsmux/tree/master>.
---
###Did this week
* Modified the node cache so that it maintains shadow nodes alive.
###Plans for the next week
* Implement the shutting down of translator stacks when *nsmux* is asked to go away (in case **antrik** considers that necessary).
* Make *nsmux* provide the access to the translator stack of the real node, in case a translator (mainly, a filter) should ask for its underlying node to be opened in O_NOTRANS mode.
---
###Current Status
####DONE:
* The skeleton which mirrors the filesystem.
* Provide proxy nodes (modify the standard version of netfs_S_dir_lookup).
####TODO:
* Create the generic filtering translator.
* Create the translator '0' (providing the untranslated version of the
node).
* Create the "recursive wrappers" for one-node translators.
* Create special translators for the main proxy so that its functionality
should be complete.
* Implement sharing of dynamic translator stacks where possible.
* Make dynamic translators go away as soon as they are not required.
* Refine the skeleton in several places so that it should become faster
and more reliable.
* Kill bugs.
* Integrate nsmux upstream.
* Solve the libtrivfs stacking issue.
* Patch libnetfs (it does not support file_get_translator_cntl, for
instance).
---
###Progress
####8: Fri Sep 19:
> Modified the ncache so that it now maintains shadow nodes (and directory nodes too, it is a side effect at the moment) alive.
####7: Sat Aug 30 - Fri Sep 5:
> Added the code for shutting down dynamic translator stacks.
####6: Mon Aug 4 - Fri Aug 29:
> Implemented the proxy nodes.
####5: Thu Jul 24 - Thu Jul 24:
> Created a *libnetfs*-based one-node translator, working exactly like the *libtrivfs*-based translator I had written before; the former, however, can be included in a translator stack.
####4: Tue Jul 22 - Thu Jul 24:
> Attempted to make a *libtrivfs*-based translator to be able to be stacked upon itself (to be able to receive a translator on top of itself, more exactly); attempted to borrow some code from *libnetfs* but this didn't bring any results.
####3: Sun Jul 20 - Tue Jul 22:
> Implemented the possibility to propagate a translator on all files belonging to a directory 'dir' in the request of the type 'dir,,x/'.
####2: Thu Jul 17 - Fri Jul 18:
> Extended the lookup code in *nsmux* to allow for looking up nodes like 'file,,x' and added the possibility to escape the double-comma in the following way: ',,,'.
####1: Mon Jul 12 - Tue Jul 13:
> Implemented a simple *libtrivfs*-based translator to test the lookup code for *nsmux*.
####0: Sat Jul 12 - Sat Jul 12:
> Made small changes to the code of *filterfs* to fit the needs of *nsmux*.
---
## Completed Tasks
####2: Sat May 3 - Fri Jul 17:
> Write a translator that should filter the contents of the directory it is set on according to some property. The property can be an arbitrary command.
> The code is at <http://github.com/scolobb/filterfs/tree/master>.
####1: Mon Apr 28 - Wed Apr 30:
> Wrote a Python extension module in C for retreiving the uptime. The module is based on the code of *w*.
####0: Sun Apr 27:
> Followed the code of *dmesgd* (<http://www.bddebian.com/junk/dmesgd/>) kindly offered by **bddebian** and rewrote it from scratch as a tutorial.
|
