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authorMatthew Wild <mwild1@gmail.com>2020-06-26 16:41:31 +0100
committerMatthew Wild <mwild1@gmail.com>2020-06-26 16:41:31 +0100
commit254b65a0305911d550d2c69048ba3f09b76bff31 (patch)
tree947c053d87635a2a545f964b6598fc7de777b881 /core/usermanager.lua
parentc313b10cd98e8461bc1f17c6e7f47e90e0d3c379 (diff)
downloadprosody-254b65a0305911d550d2c69048ba3f09b76bff31.tar.gz
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util.dbuffer: dynamic string buffer
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.
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