stephan
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bb4e4a4840
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Minor internal tweaks to the OPFS VFS. Resolve a missing result code which lead to a null deref in xFileSize().
FossilOrigin-Name: 57dd593ef0efa17dfb3a9f4eac36d5b8b879e271de817d8cd94a8c8b56d31870
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2022-12-02 18:56:37 +00:00 |
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stephan
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95bc4d67bb
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OPFS VFS: translate createSyncAccessHandle() exceptions which appear to be locking violations to SQLITE_BUSY. This seems to improve concurrency considerably even with a reduced retry count of 5 (was 6).
FossilOrigin-Name: 0d36021d107d3afca190ad61c3380536ad0cc2d493d345d48f9f9c1191741128
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2022-12-02 18:06:26 +00:00 |
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stephan
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c5141c9efa
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Simplify how the OPFS VFS async proxy copies initial state sent to it from the synchronous side of the connection. Make the lock-wait time a multiple of the wait-loop timeout interval.
FossilOrigin-Name: eddafafffa634a42ceeed70aa3fc58be130527612157a4bf4ff9e65c7f6dc26c
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2022-11-30 08:37:17 +00:00 |
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stephan
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36a0163e40
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Rename some OPFS JS files. Prevent JS bindings of sqlite3_uri_...() from performing JS-to-C-string argument conversion on their first argument, as doing so is specifically illegal.
FossilOrigin-Name: 79832808de2cbdba140ed9e0558f1502b51d131ab4315265315922cda7b748cb
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2022-11-30 07:17:29 +00:00 |
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stephan
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d0945f4638
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Doc and logging text tweaks in the OPFS async proxy and test app.
FossilOrigin-Name: 7ce8608e221924d2c7067687eb6eef0f3cab181d5b4132e55a67d8514b6ce94b
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2022-11-30 03:08:50 +00:00 |
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stephan
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ceedef888f
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Minor internal cleanups and docs in the OPFS sqlite3_vfs.
FossilOrigin-Name: 61799b05ff232c2ac349169c27bfe7f8d9277366093b0c9dd2739828993b3066
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2022-11-29 06:09:32 +00:00 |
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stephan
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04184761de
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Internal restructuring of the OPFS sqlite3_vfs in order to facilitate certain experimentation and improve error reporting/hints if it cannot be activated. Deprecate the name sqlite3.opfs.OpfsDb, preferring sqlite3.oo1.OpfsDb for consistency with JsStorageDb and any future DB subclasses.
FossilOrigin-Name: 0c5c51f4fb04a4b90c50ec9704cfea9a3fb7d7d0ee55c1b0d4476129188217a6
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2022-11-29 05:25:08 +00:00 |
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stephan
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ca9309cc56
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Document an OPFS API change in Chrome v108 which does not break our code but does change several formerly async methods to synchronous. No code changes.
FossilOrigin-Name: e9dd87e28a96eb6560943b9a2cb3cb0ff14698c96fe63865944dcfed73b67bd3
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2022-11-27 00:57:56 +00:00 |
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stephan
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df5d06d03e
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More work on the OPFS concurrency testing app.
FossilOrigin-Name: c0458caca3508d5d252f9b5198bda4f51a5c1874540f014b17e409f2daab1706
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2022-11-24 17:53:09 +00:00 |
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stephan
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e79cb67c35
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Add an experimental OPFS VFS-specific URI flag, opfs-unlock-asap, which tells the VFS to release implicit locks ASAP. This permits higher concurrency but hurts performance considerably. This may or may not be obsoleted by other concurrency-related experimentation.
FossilOrigin-Name: d23c917013485ec2793125221f3936b05c39d6eca941629fb819b6b4aa714520
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2022-11-23 19:03:22 +00:00 |
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stephan
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ad1285c5c0
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Initial infrastructure for adding a mode to the OPFS VFS which causes implicit locks to be released ASAP, which increases concurrency at the cost of performance.
FossilOrigin-Name: c5b7a9715a13b696ab3ee965aa0a310f59b65f07cecd72faa2e3504bfd8eb632
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2022-11-23 16:39:07 +00:00 |
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stephan
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b38ac0986e
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More tweaking of OPFS concurrency measures and the related test app.
FossilOrigin-Name: a8d4da1501d411085ec2fd48c4a056c8b1d97ef3c3203c5b403a854ac2864870
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2022-11-21 05:18:24 +00:00 |
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stephan
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36d5554c9a
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Resolve missing SQLITE_LOCKED result code which triggered a new (since last checkin) exception in the OPFS VFS. Improve output of the OPFS contention tester app.
FossilOrigin-Name: 2debbbca33bd4170a1dc4dbb5eb3e68523e51d289b06c551e5560ac4e32e433b
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2022-11-21 04:12:38 +00:00 |
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stephan
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27c4cd183d
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Add test app for experimenting with multi-worker OPFS concurrency. Tweak OPFS VFS to significantly improve the otherwise "unfortunate" concurrency situation.
FossilOrigin-Name: 96f76e7616f8157a342b9e1c42f7b1feab200d182268871a2b25f67d4ee2564c
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2022-11-21 03:50:52 +00:00 |
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stephan
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da2641597a
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Rework automatically acquired OPFS locks to be released during idle time. This eliminates the performance hit reported in [46304ba057707c].
FossilOrigin-Name: a7fe91afca473fe55c983bc81d214df4ef3699863c7423fa4b6b9cde23d6a3b4
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2022-11-10 13:14:30 +00:00 |
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stephan
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aafa022f5b
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OPFS: if an op which needs a lock is called when no lock has been obtained, automatically lock it at the start of the op and unlock it at the end of that op. This is an attempt to alleviate the cross-tab contention described in [forum post 58a377083cd24a|forum:58a377083cd24a] but it increases speedtest1 run time by approximately 4x. Perhaps auto-lock can be combined with the older idle-time-based auto-unlock to unlock such locks (but not those from xLock()) to improve this?
FossilOrigin-Name: 46304ba057707c3b072b6e7bb8c4af774f653aa5814099f0866cd87b2b73abeb
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2022-11-10 11:35:10 +00:00 |
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stephan
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4df2ab575f
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Globally replace '' with "" for empty JS strings to please C preprocessor.
FossilOrigin-Name: e92e1f42bef94a1df29f66b4111ebfde93eba3759bc5d5a9c95f714508851346
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2022-11-03 21:21:10 +00:00 |
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stephan
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f45c33701d
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Add sqlite3_wasm_vfs_create_file() to replace Emscripten's FS.createDataFile() in a (mostly) VFS-agnostic way. Add a test for worker1's export (to bytearray) support. Re-add worker1 open-from-bytearray using sqlite3_wasm_vfs_create_file() but it's untested (requires a new interactive test app or maybe reconsideration).
FossilOrigin-Name: b35e1225c91a3cadc0d25af1e4e790237256d194990faa13190e343ed03e11c5
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2022-11-02 11:53:31 +00:00 |
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stephan
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c18c8bf957
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Fix a symbol name typo which broke and exception-handling case in OPFS xOpen().
FossilOrigin-Name: 5bc83d569594e104e90b1acef1a5fd23655b2089de393a6776e799fdef2082f5
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2022-11-02 08:49:05 +00:00 |
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stephan
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49048b148e
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Significant cleanups and expansion of the sqlite3.opfs utilities. Add oo1.DB.dbVfsName(). Add VFS name to worker1:open's arguments and result.
FossilOrigin-Name: 86a341d7e061f946b39e8647ddd4743013b851b33ae9e6e755d8dbc53fba5286
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2022-11-01 07:49:49 +00:00 |
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stephan
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43b442a626
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Internal tweaks to the OPFS VFS result codes.
FossilOrigin-Name: 32e1a2d2eb8738ae1635e413829f6cf7f64c63d2a86b72940a573de89948e529
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2022-10-31 11:53:34 +00:00 |
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stephan
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9163ef1f4d
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Adjust automatic OPFS locking retries such that they will wait up to a total of 3 seconds spanning 4 attempts.
FossilOrigin-Name: bbce49d81abc491ca666474040a53057e26e99131fea9449de253f88f4415ded
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2022-10-30 10:24:53 +00:00 |
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stephan
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f861b36bf4
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Minor cleanups and doc improvements in the OPFS sqlite3_vfs proxy.
FossilOrigin-Name: 48645f7bcacf81c4149f26d20ee1752fbe93a02f96b85bd7e28bfa49322137e5
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2022-10-25 08:06:17 +00:00 |
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stephan
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cd0df83c15
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Apply considerable acrobatics to get the JS/WASM deliverables building to and loadable from a directory other than the one which contains the app-level code. Requires an only-slightly-leaky abstraction of passing a URL argument when loading sqlite3.js but provides much greater flexibility in where the JS/WASM files are located.
FossilOrigin-Name: 6d468dab9eb84d4548f68014959f02fe4f66455472ff24fe729382bb2972e3d1
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2022-10-19 04:44:58 +00:00 |
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