Michael Nitschinger af4f70ba28 More efficiently allocate header buffer. ... Motivation ---------- Currently, only the fixed 24 bytes are allocated for the header and then all the params as well as the optional extras and key are written into the header section. It is very likely that the buffer needs to expand at least two times if either the extras and/or the key take up more space. Modifications ------------- Since at the point of allocation we know the key and extras length, the buffer can be preallocated with the exact size, avoiding unnecessary resizing and even allocating too much (since it uses power of two internally). Result ------ Less buffer resizing needed when encoding a memcache operation.		2016-01-26 10:14:51 +01:00
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codec/memcache	More efficiently allocate header buffer.	2016-01-26 10:14:51 +01:00