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annotate TODO @ 161:fbbdc46429b4 noffle

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[svn] Add handling of connection breakdown during a fetch to later section.
author enz
date Fri, 29 Dec 2000 15:09:25 +0000
parents 7c7a7c96d35b
children 3d243292468d
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1 -------------------------------------------------------------------------------
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2 NOFFLE Todolist
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3 -------------------------------------------------------------------------------
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4
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5 Urgent
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6 ------
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8 * Has Client_connect resource leaks if it fails?
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9
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7c7a7c96d35b [svn] Release-1-0 merge
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10 * Bug: Lock_closeDatabases must do a Cont_write() if dirty and Lock_openDatabases()
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11 should check if it is necessary to reread the group content using a timestamp.
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13 Later
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14 -----
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fbbdc46429b4 [svn] Add handling of connection breakdown during a fetch to later section.
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16 * Make Noffle handle a connection break-down during a fetch more gracefully.
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17 At present it still continues to fetch articles, generating a
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18 retrieving failed article for each article left.
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19
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a0a96e1021c3 [svn] Performance of group database
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20 * Improve performance of group database. Using GDBM is a bad choice,
a0a96e1021c3 [svn] Performance of group database
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21 better use a btree from the Berkeley db library in libc.
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22 This will be a good time for a redesign of the group.h interface
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23 with respect to process concurrency if the simple global locking strategy
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24 will be changed in the future.
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26 * Add "hostname" config option for setting the FQHN in generated message IDs.
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27
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28 * Read timeout when running as server and automatically close if client
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29 does not send data for a longer time.
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31 * Implement simple filter using popen or fifos.
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32
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33 * Make compatible to latest NNTP draft.
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34
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35 * Improve speed of online mode: Keep connection to server open for a while
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37 * Check all in
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38 http://mars.superlink.net/user/tal/writings/news-software-authors.html
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39 (Use NOV library? Use inews for validating posted articles? ... )
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40
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41 * Store requested articles by group + number. This would allow to create
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42 pseudo-groups (like <groupname>.requested) that contained only fully
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43 downloaded articles in overview mode (very nice and clever
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44 idea sent in by a user, it would make using overview mode much easier).
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45 Second advantage: Noffle would work with servers that have retrieving
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46 articles by message-id disabled.
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47
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48 * Expire should clean up empty request/outgoing directories, so they will not
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49 exists forever after a server change.
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50
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51 * Do not log program abortion due to SIGINT, if no inconsistency can occur,
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52 (e.g. when calling 'noffle -d' to a pipe and next program terminates or
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53 pressing ^C).
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54
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55 * Improve www page and documentation.
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56
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57 * Keeping the content list for several lock/unlock times could lead to
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58 inconsistent results, because content list is maybe modified by
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59 pseudo articles. Check this!
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61 * Optimize NEWGROUPS (extra list?)
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62
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63 * Add noffle query option for checking all groups, if they are still
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64 available at the remote server(s) and delete them otherwise.
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65
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66 * In online mode, retrieve full article header from remote server if client
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67 sends a HEAD command. Presently, only the header lines from the overview
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68 are returned and the article is only retrieved on an ARTICLE or BODY command.
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69 The reason for this was that some readers (like pine) retrieve the group
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70 overview by sending lots of HEAD commands and their performance would badly
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71 suffer. On the other hand, some readers (like slrn) cache the header from
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72 a HEAD command, even if a following ARTICLE command gets more header lines,
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73 so that not all header lines are available when reading news in online mode,
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74 before the next start of the reader. But some header lines (e.g. Reply-To)
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75 are important.
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76 Maybe make the behaviour configurable.
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78
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79 Some day far away
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80 -----------------
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81
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82 * Understand supersedes header (useful for reading news.answers group)
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83
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84 * Get and execute cancel messages (read control.cancel, but use xpat to get
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85 only cancels for groups in fetchlist). Seems to be expensive (20000 headers
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86 a day, takes the remote server to search through)
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87