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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
commitfb8e10737dfe14aaaa5fbc0295044f1f57dc9ad0 (patch)
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parent0f8937fc27f535fe33480e4db3f0ccb8b7af50ce (diff)
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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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