dea12e2529ecdcab3a382fc71e7430326b74d6a6 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/fa42341de14ebfecf984d89c4f7933e91eaf870d fa42341de14ebfecf984d89c4f7933e91eaf870d

2009-06-22T05:34:32-07:00

Test 119baf1da0fb766727a7198c3545c721ff1bbbbd Sergiu Ivanov unlimitedscolobb@gmail.com c9110f9c7d71fa9b157540a7aa2ade7f34b79968 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/dea12e2529ecdcab3a382fc71e7430326b74d6a6 dea12e2529ecdcab3a382fc71e7430326b74d6a6

2009-04-14T12:28:27-07:00

Made nsmux wait until dynamic translators finish Previously, a settrans -gR on a node on which nsmux resides would only kill the dynamic translators, without shutting down nsmux, because it didn't wait for the children to close their ports, which made a check in netfs_shutdown fail. Now nsmux waits for the dynamic translator to finish, so settrans -gR does its job as expected: shuts down everything. b6687c3868f668a25cf19ed1eb3159c5cd5af3ce Sergiu Ivanov unlimitedscolobb@gmail.com 0a5fcd403943fbbdc0a2ba35283f1135f97c48dc Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/c9110f9c7d71fa9b157540a7aa2ade7f34b79968 c9110f9c7d71fa9b157540a7aa2ade7f34b79968

2009-04-12T15:03:40-07:00

nsmux can shutdown all dynamic translators on exit Now nsmux can shutdown all of its dynamic translators on exit, thus doing sufficient cleanup. One can tell nsmux to shutdown dynamic translators using the ``--recursive'' option to settrans. Note that because fsys_goaway returns immediately as the RPC is processed, while the receiver may still remain in memory, doing something like settrans -g --recursive foo where nsmux is sitting on foo will almost always result in a ``Server busy'' error message. The reason is that libnetfs counts how many open ports to its nodes there are at shutdown and in most cases it does the check *before* the dynamic translators manage to drop their references. Therefore, the aforementioned command gracefully kills all dynamic translators. Invoked the second time, this command will shutdown nsmux, too. Immediate shutdown with killing dynamic translators can be achieved via settrans -gf --recursive foo 86723a412757f6d44ac60e8efec921fd14777987 Sergiu Ivanov unlimitedscolobb@gmail.com 68c018b02a8eff826cd30480ce73202ce9cc9e48 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/0a5fcd403943fbbdc0a2ba35283f1135f97c48dc 0a5fcd403943fbbdc0a2ba35283f1135f97c48dc

2009-04-12T12:31:26-07:00

Added dynamic translator tracking facilities nsmux cannot presently shut down gracefully (without the -f option) after having done a magic lookup, because the dynamic translators it starts hold ports (references) to its nodes and make the standard fsys_goaway handler return with EBUSY. To solve the problem, nsmux will need to keep track of dynamic translators and shut them down explicitly, not relying on standard mechanisms, which don't know that the translators might be stacked and might try stopping a translator in the middle of the dynamic stack, which will certainly result in EBUSY. (Note that this commit comes on top of an erroneous one and is meant to fix it. I could not revert the previous commit because of ``bad index'', so I hope this commit will solve the problem...) 538585395c4376368118a32d93e1c83569bf4a0d Sergiu Ivanov unlimitedscolobb@gmail.com 0ec50f8fb5ec477523571a9612cfb9f23a10de12 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/68c018b02a8eff826cd30480ce73202ce9cc9e48 68c018b02a8eff826cd30480ce73202ce9cc9e48

2009-04-12T12:13:36-07:00

Revert "Added dynamic translator tracking facilities" This reverts commit 0ec50f8fb5ec477523571a9612cfb9f23a10de12. 7300d43003a35e8228ecbffa214240149de2d90e Sergiu Ivanov unlimitedscolobb@gmail.com 6cbf37e304b352d3acfd6d719ddfa7a7fbbc3bbb Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/0ec50f8fb5ec477523571a9612cfb9f23a10de12 0ec50f8fb5ec477523571a9612cfb9f23a10de12

2009-04-12T11:48:11-07:00

Added dynamic translator tracking facilities nsmux cannot presently shut down gracefully (without the -f option) after having done a magic lookup, because the dynamic translators it starts hold ports (references) to its nodes and make the standard fsys_goaway handler return with EBUSY. To solve the problem, nsmux will need to keep track of dynamic translators and shut them down explicitly, not relying on standard mechanisms, which don't know that the translators might be stacked and might try stopping a translator in the middle of the dynamic stack, which will certainly result in EBUSY. # Please enter the commit message for your changes. # (Comment lines starting with '#' will not be included) # On branch master # Changes to be committed: # (use "git reset HEAD <file>..." to unstage) # # modified: debug.h # modified: lib.c # modified: lib.h # modified: lnode.c # modified: lnode.h # modified: magic.c # modified: magic.h # modified: ncache.c # modified: ncache.h # modified: node.c # modified: node.h # modified: nsmux.c # modified: nsmux.h # modified: options.c # modified: options.h # # Untracked files: # (use "git add <file>..." to include in what will be committed) # # my_S_dir_lookup.c # sav/ # update 0667edd85fc530aee914edb6b27e4a2b1dd2a378 Sergiu Ivanov unlimitedscolobb@gmail.com 1e8766f3649e8a97595fad2a8ca550028e5e3f4a Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/6cbf37e304b352d3acfd6d719ddfa7a7fbbc3bbb 6cbf37e304b352d3acfd6d719ddfa7a7fbbc3bbb

2009-04-08T23:03:51-07:00

Updated copyright years The copyright years were listed only up to 2008, so I added 2009. Also, some of the files I created from scratch used to list copyright years starting with 2001, which was wrong. This has also been corrected. 7300d43003a35e8228ecbffa214240149de2d90e Sergiu Ivanov unlimitedscolobb@gmail.com 48efa86dfe3e546190f997e70c307a231026d207 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/1e8766f3649e8a97595fad2a8ca550028e5e3f4a 1e8766f3649e8a97595fad2a8ca550028e5e3f4a

2009-03-20T12:59:05-07:00

Shadow and proxy nodes are connected in a chain nsmux will eventually need to be able to traverse dynamic translator stacks, so it will have to know which node lies under a certain node (shadow or proxy). To be able to do this, nsmux now maintains the service nodes in a dynamic translator stack in a one-directional linked list. cd6e1d5f2ad6e5c1819336e80c2fe2ab69904486 Sergiu Ivanov unlimitedscolobb@gmail.com 3cea8614816e68db569bbea21134c64273e037b5 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/48efa86dfe3e546190f997e70c307a231026d207 48efa86dfe3e546190f997e70c307a231026d207

2009-03-06T11:21:47-08:00

Added node types Now inside each netnode (and, hence, inside each node) there is a field showing the type of the node. This is required because, at least in response to requests by the filter, proxy nodes and shadow nodes will have different jobs to do and the server-side implementation of filesystem RPCs in nsmux would need to know what actions they are expected to carry out. b095f30d7ddec15469235ae9b5ef65b3ea7038b0 Sergiu Ivanov unlimitedscolobb@gmail.com 2fc7f8c49fc34cd2db65c36400200082a62138a1 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/3cea8614816e68db569bbea21134c64273e037b5 3cea8614816e68db569bbea21134c64273e037b5

2009-03-06T10:31:04-08:00

Added proxy nodes in the dynamic translator stack When setting dynamic translators, nsmux used to offer the client a port to the dynamic translator directly. Now it gives off a proxy node, which contains a port to the translator. Also, proxy nodes are now included in dynamic translator stacks. Dynamic translator stacks now consist of the following interconnected conceptual blocks: -- shadow node -- translator -- proxy node -- 8fa552187ad145b9ccd80fe984969b2944f0926a Sergiu Ivanov unlimitedscolobb@gmail.com 0a878aaf9fadb891a6067f8f084baa8ca5c30521 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/2fc7f8c49fc34cd2db65c36400200082a62138a1 2fc7f8c49fc34cd2db65c36400200082a62138a1

2009-02-20T08:43:57-08:00

Dynamic translator stacks are set in series of retries When a client wants nsmux to set several translators on a node using a syntax like ``file,,x,,y'', nsmux sets the first translator on a shadow node mirroring ``file'' and punts a retry to the client. The client (commonly) does the retry and thus control comes back to nsmux, which creates another shadow node and sets the second translator on this node. At the moment translator stacks do not include proxy nodes, i.e. the structure of a dynamic translator stack is: ...---dynamic translator -- shadow node -- dynamic translator ---... 0ec2e55368532c8a12cfae9650cf211c63fc7e50 Sergiu Ivanov unlimitedscolobb@gmail.com eeba2e52b08c78f2ba362174c8bfc8d222133b45 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/0a878aaf9fadb891a6067f8f084baa8ca5c30521 0a878aaf9fadb891a6067f8f084baa8ca5c30521

2009-01-30T00:27:58-08:00

Adapted node_set_translator to setting translators on shadow nodes Usually the file of which the supplied node is a mirror is looked up by node_set_translator, so that it can open using the flag combination required by the translator being started. However, when dealing with a dynamic translator being set upon another dynamic translator, node_set_translator must not do any lookups, because a valid port is already stored in the supplied node. 53e590a43e077f181103b8a677c46abf3cf5de1b Sergiu Ivanov unlimitedscolobb@gmail.com 966522f2fa9239d9c2ba08152cc7019d996c2516 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/eeba2e52b08c78f2ba362174c8bfc8d222133b45 eeba2e52b08c78f2ba362174c8bfc8d222133b45

2009-01-29T12:53:57-08:00

Made nsmux able to pass retries to the client Now, when nsmux sets another dynamic translator, it sends a retry to the client, so that it could set the (possible) next dynamic translator in the next execution of netfs_S_dir_lookup, which will occur due to the retry. However, nsmux cannot handle the retry properly yet. The reason for splitting the functionality of *only* passing the retry to client in a separate commit is that it required some tricky code manipulation and hence I feel that keeping it in a separate commit is quite reasonable. a3081b26013a887bfe0d6b10fdbb0787536e0e3f Sergiu Ivanov unlimitedscolobb@gmail.com b7d7c04378644966ae873878b5485fac1a708dc9 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/966522f2fa9239d9c2ba08152cc7019d996c2516 966522f2fa9239d9c2ba08152cc7019d996c2516

2009-01-29T07:16:06-08:00

Added the function to create proxy nodes for ports Since we want netfs_S_dir_lookup to ask the client to do a retry when it sets a new dynamic translator, nsmux has to give the client a *proxy* of the port to the root of the current dynamic translator, so that the retry gets back in nsmux. For this we need to create proxy nodes for ports, which is precisely what node_create_from_port does. ad2ccd0ed60cd3c53d7becb55f20d5cd858e332a Sergiu Ivanov unlimitedscolobb@gmail.com 7298936df2535ce119ea38afd81915e523957e00 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/b7d7c04378644966ae873878b5485fac1a708dc9 b7d7c04378644966ae873878b5485fac1a708dc9

2009-01-22T22:06:30-08:00

nsmux can now correctly start one translator nsmux can now handle the syntax ``file,,x'' correctly again. Translator *stacks* cannot be created yet. 5a0188aff0b995deaf405ef548154395359a0e0a Sergiu Ivanov unlimitedscolobb@gmail.com 26fc5b0f9071e0b6266c01e3bc46ac102b27efa6 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/7298936df2535ce119ea38afd81915e523957e00 7298936df2535ce119ea38afd81915e523957e00

2009-01-22T21:35:41-08:00

Adapted node_set_translators to shadow nodes Now this function is called node_set_translator and sets only one translator on the supplied (shadow) node. This function has not yet been debugged. 61a0821f904002afa465bd3d46e606f8ec65eb92 Sergiu Ivanov unlimitedscolobb@gmail.com 65360480a9540e3ed6cfdbc42a3a66c8b08b73dc Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/26fc5b0f9071e0b6266c01e3bc46ac102b27efa6 26fc5b0f9071e0b6266c01e3bc46ac102b27efa6

2009-01-22T12:32:08-08:00

netfs_S_dir_lookup can perform usual lookups Due to the transition to a different way of building translator stacks netfs_S_dir_lookup has been broken and nsmux could not respond normally to any lookup requests. Now netfs_S_dir_lookup is again capable of doing normal lookups. At the moment nsmux is doing nothing but mirror the real filesystem. 32045ef3701aa140d3004f73416348de9c45df7b Sergiu Ivanov unlimitedscolobb@gmail.com 439bd02eb00358b50e2d5123ae27e839d8f1a8a6 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/65360480a9540e3ed6cfdbc42a3a66c8b08b73dc 65360480a9540e3ed6cfdbc42a3a66c8b08b73dc

2009-01-22T11:16:49-08:00

Added the routines for parsing magic syntax Now nsmux has two special routines for parsing the special ``,,'' syntax: magic_find_sep and magic_unescape. The reason for their separate existence is that the magic ``,,'' is allowed to be escaped in the following way ``,,,'' and nsmux must be able to react correspondingly to such syntax. b34379878c363aaf6a40d9a6510c48ed0ba2ed50 Sergiu Ivanov unlimitedscolobb@gmail.com b957be8b0ed3c5b38434db606122e2904e121de4 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/439bd02eb00358b50e2d5123ae27e839d8f1a8a6 439bd02eb00358b50e2d5123ae27e839d8f1a8a6

2009-01-20T12:08:25-08:00

Magic syntax handling removed from netfs_attempt_lookup_improved Up to now it was netfs_attempt_lookup_improved who handled the magic syntax for ``,,''. Now the idea is to handle this syntax via retries and netfs_attempt_lookup_improved is in no position to manage this. In further commits the magic syntax will be handled by netfs_S_dir_lookup. Note nsmux does not actually work at the moment. 63a27d8992b4b575e182072d594bcde8819a0e1c Sergiu Ivanov unlimitedscolobb@gmail.com fd0bc23b08aa9ff76d61f753149b5e4fbf2c5a30 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/b957be8b0ed3c5b38434db606122e2904e121de4 b957be8b0ed3c5b38434db606122e2904e121de4

2009-01-18T10:00:08-08:00

Prepared struct node for stacks of shadow nodes So far dynamic translator stacks were created in the following fashion: nsmux created a shadow node on which the whole dynamic translator stack was built. This commit starts the transition to a different strategy: the new approach consists in setting *each* dynamic translator on its personal shadow node. To achieve such functionality the set of fiels of struct node was modified and the bits of code that manipulated these fields were stripped out. The code is not functional now. The coming commits will bring it back to life. 6da2b85f655d61b0a14b1c4b30c96df69a31ed87 Sergiu Ivanov unlimitedscolobb@gmail.com a54273639f6afd659c15326cb997922fcecfe89a Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/fd0bc23b08aa9ff76d61f753149b5e4fbf2c5a30 fd0bc23b08aa9ff76d61f753149b5e4fbf2c5a30

2008-12-12T11:28:52-08:00

Ports in shadow nodes are opened by the translator starting routine now. Before, netfs_S_dir_lookup used to open the ports in shadow, nodes. This could cause conflicts with the flags required by the translator starting up on the node. Now the port is opened only based on the flags requested by the translator being launched. 34f6dea23e5727d2240cf4c2b69d5992c0dd543e Sergiu Ivanov unlimitedscolobb@gmail.com 59f4d4d2b67028c01f41ea0de0f12934b4fad07b Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/a54273639f6afd659c15326cb997922fcecfe89a a54273639f6afd659c15326cb997922fcecfe89a

2008-11-21T13:54:40-08:00

Moved the code to GCS Now the code is (hopefully) compliant with GNU Coding Standards. 3f240fed8fcfd7f14cbc5b7d059f48f6eb9707cb Sergiu Ivanov unlimitedscolobb@gmail.com 2ca81a7c1717477766d7e3882e13f4b414e2fead Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/59f4d4d2b67028c01f41ea0de0f12934b4fad07b 59f4d4d2b67028c01f41ea0de0f12934b4fad07b

2008-11-07T12:33:49-08:00

node_set_translators now sets multiple translators correctly. node_set_translators used to count the translators in the list and set the first one so many times as there were translators. This bug is killed now. ea37e0cec351c6cb835bfbb6f137036af0a1f75f Sergiu Ivanov unlimitedscolobb@gmail.com ea0e131a27ca72e15be6af24d283df7406be0b7c Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/2ca81a7c1717477766d7e3882e13f4b414e2fead 2ca81a7c1717477766d7e3882e13f4b414e2fead

2008-10-10T13:10:31-07:00

Made netfs_S_file_get_translator_cntl use the untranslated version of the real node Now netfs_S_file_get_translator_cntl calls the file_get_translator_cntl routine on the untranslated version of the real node, which makes it possible for the filter to trace the real translator stack. 2f26ecda533ede04c46a087dc0c83e0254b227ff Sergiu Ivanov unlimitedscolobb@gmail.com 7ef410a8a63a7e8ff206fe2baeea88a82fac48a3 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/ea0e131a27ca72e15be6af24d283df7406be0b7c ea0e131a27ca72e15be6af24d283df7406be0b7c

2008-10-10T11:40:15-07:00

Added the code of always looking up the untranslated real node netfs_attempt_lookup_improved will now lookup the requested file both with the requested flags and in an untranslated fashion. This will allow netfs_S_file_get_translator_cntl to correctly redirect requests to the real filesystem node. 7b64bd6ed0f995d22fad2020f2b761e4dc72d3f5 Sergiu Ivanov unlimitedscolobb@gmail.com e266d6a45c1cd1269872528dbe148f88a01ac081 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/7ef410a8a63a7e8ff206fe2baeea88a82fac48a3 7ef410a8a63a7e8ff206fe2baeea88a82fac48a3

2008-10-10T11:16:30-07:00

Added the port to the untranslated version of the real node to the netnode When 'file,,x' is requested, nsmux cannot tell whether 'x' is a filter or not and whether it will require the untranslated version of the file or not. However, when netfs_S_file_get_translator_cntl would like to show the translator stack on the *real* node, it will need the untranslated version of the node, which must be available by that time. The new field in netnode solves this issue. 85cf9bc66be0433e434014bc998d7e5540b83ffe Sergiu Ivanov unlimitedscolobb@gmail.com d60dd9120b1a50c92b0aefdc3a76618d74b5e0f1 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/e266d6a45c1cd1269872528dbe148f88a01ac081 e266d6a45c1cd1269872528dbe148f88a01ac081

2008-10-10T11:14:25-07:00

Removed the paragraph about propagating translators into directories from README Earlier the README said that nsmux will propagate translators into a directory if it will be set on a directory. However, this functionality will be later implemented as a separate translator, therefore nsmux shall not care for this task in the future. 4ef73887e2fc11b673640506f0035692176b2b39 Sergiu Ivanov unlimitedscolobb@gmail.com b973a117cae3021b87d408af573bb1dbe153c132 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/d60dd9120b1a50c92b0aefdc3a76618d74b5e0f1 d60dd9120b1a50c92b0aefdc3a76618d74b5e0f1

2008-10-10T11:11:03-07:00

Added the code for recognizing non-root nodes to netfs_S_file_get_translator_cntl Now netfs_file_get_translator_cntl will recognize whether it is called for the root node or not. In case the node it is called on is not the root, it will call file_get_translator_cntl on the real node, so that filters could trace translator stacks on real nodes. bcc6b8acd73e7e1d6e1e7142ce22e3268e1eb3f8 Sergiu Ivanov unlimitedscolobb@gmail.com 41e54572aac563537d961b3f284c100411c59532 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/b973a117cae3021b87d408af573bb1dbe153c132 b973a117cae3021b87d408af573bb1dbe153c132

2008-10-03T01:03:44-07:00

Copied the implementation of netfs_S_file_get_translator_cntl from libdiskfs. By default, libnetfs does not implement this callback, which, BTW, makes impossible to trace the translator stack consisting of libnetfs translators. nsmux not only needs an implementation of this routine, but also requires customizations in order for filters to trace translator stacks on real nodes. 832b7ba1e8dd7c29a40d45560c85f3492186a517 Sergiu Ivanov unlimitedscolobb@gmail.com 0d2f7d724254ad78d61b4a2004879b90bf2587d4 Sergiu Ivanov unlimitedscolobb@gmail.com http://github.com/scolobb/nsmux/commit/41e54572aac563537d961b3f284c100411c59532 41e54572aac563537d961b3f284c100411c59532

2008-10-03T01:01:10-07:00

Revert "Cloned the native implementation of netfs_S_fsys_getroot." This reverts commit 7200dac108c4a8981b7f7f5f90757409c3e6d5bf. 23a256044ceedc93deb4576231473e8b26fc26a8 Sergiu Ivanov unlimitedscolobb@gmail.com