http://hg.omfa.de/prosody-hg/ en-us prosody-hg: util/dbuffer.lua history util/dbuffer.lua revision history util: Prefix module imports with prosody namespace http://hg.omfa.de/prosody-hg/log/d10957394a3c/util/dbuffer.lua Kim Alvefur <zash@zash.se> Fri, 17 Mar 2023 16:23:16 +0100 util.dbuffer: Add efficient shortcuts for discard() in certain cases http://hg.omfa.de/prosody-hg/log/d26eefe98d09/util/dbuffer.lua
If the buffer is already empty, nothing to do. If we're throwing away the
whole buffer, we can just empty it and avoid read_chunk() (which in turn
may collapse()). These shortcuts are much more efficient.]]> Matthew Wild <mwild1@gmail.com> Tue, 11 Oct 2022 11:37:55 +0100 util.dbuffer: Remove redundant code (read_chunk() cannot fail at this point) http://hg.omfa.de/prosody-hg/log/79b89f382290/util/dbuffer.lua Matthew Wild <mwild1@gmail.com> Tue, 11 Oct 2022 11:34:47 +0100 util.dbuffer: Fix bugs, remove multi-char support (more complex than first thought) http://hg.omfa.de/prosody-hg/log/19cddf92fcc2/util/dbuffer.lua
Character sequences could be split across chunk boundaries. Would require a bunch
of code to make that work reliably.

Only apply front_consumed on first chunk, and adjust buffer_pos accordingly.]]> Matthew Wild <mwild1@gmail.com> Tue, 29 Jun 2021 14:25:57 +0100 util.dbuffer: Add read_until() method http://hg.omfa.de/prosody-hg/log/11e0a0a08da3/util/dbuffer.lua Matthew Wild <mwild1@gmail.com> Tue, 29 Jun 2021 13:48:14 +0100 util.dbuffer: Add __name to metatable http://hg.omfa.de/prosody-hg/log/f243836c449a/util/dbuffer.lua Matthew Wild <mwild1@gmail.com> Fri, 30 Oct 2020 13:53:39 +0000 Merge 0.11->trunk http://hg.omfa.de/prosody-hg/log/88ce53df44a9/util/dbuffer.lua Matthew Wild <mwild1@gmail.com> Wed, 28 Oct 2020 14:32:33 +0000 util.dbuffer: Optimize :sub() and :byte() http://hg.omfa.de/prosody-hg/log/0ff148362a3d/util/dbuffer.lua Matthew Wild <mwild1@gmail.com> Wed, 28 Oct 2020 14:21:09 +0000 Merge 0.11->trunk http://hg.omfa.de/prosody-hg/log/3a72cb126d6c/util/dbuffer.lua Kim Alvefur <zash@zash.se> Mon, 12 Oct 2020 21:29:20 +0200 util.dbuffer: Expose length as :len() method, like strings http://hg.omfa.de/prosody-hg/log/a8ef69f7fc35/util/dbuffer.lua
Ref #1598]]> Kim Alvefur <zash@zash.se> Mon, 12 Oct 2020 20:20:02 +0200 Merge 0.11->trunk http://hg.omfa.de/prosody-hg/log/6a608ecb3471/util/dbuffer.lua Matthew Wild <mwild1@gmail.com> Tue, 29 Sep 2020 15:30:48 +0100 util.dbuffer: Fix :sub() not working with partially-consumed chunks (thanks Zash for test case) http://hg.omfa.de/prosody-hg/log/6632acc96cf6/util/dbuffer.lua
This also appears to fix some bugs with chunk-encoded streams in net.http.parser.]]> Matthew Wild <mwild1@gmail.com> Mon, 24 Aug 2020 16:18:13 +0100 util.dbuffer: Fix :sub() not working with partially-consumed chunks (thanks Zash for test case) http://hg.omfa.de/prosody-hg/log/8c6bace13229/util/dbuffer.lua
This also appears to fix some bugs with chunk-encoded streams in net.http.parser.]]> Matthew Wild <mwild1@gmail.com> Mon, 24 Aug 2020 16:18:13 +0100 util.dbuffer: Fix traceback when :collapse() is called on empty buffer http://hg.omfa.de/prosody-hg/log/d7a403060946/util/dbuffer.lua Matthew Wild <mwild1@gmail.com> Thu, 20 Aug 2020 15:22:19 +0100 util.dbuffer: If no bytes parameter passed to read, return remainder of frontmost chunk http://hg.omfa.de/prosody-hg/log/eaee72c7afbd/util/dbuffer.lua Matthew Wild <mwild1@gmail.com> Mon, 29 Jun 2020 12:51:28 +0100 util.dbuffer: dynamic string buffer http://hg.omfa.de/prosody-hg/log/39991e40d1dc/util/dbuffer.lua
Similar to util.ringbuffer (and shares almost identical API). Differences:

- size limit is optional and dynamic
- does not allocate a fixed buffer of max_size bytes
- focus on simply storing references to existing string objects where possible,
avoiding unnecessary allocations
- references are still stored in a ring buffer to enable use as a fast FIFO

Optional second parameter to new() provides the number of ring buffer segments. On
Lua 5.2 on my laptop, a segment is ~19 bytes. If the ring buffer fills up, the next
write will compact all strings into a single item.]]> Matthew Wild <mwild1@gmail.com> Fri, 26 Jun 2020 16:41:31 +0100