vchi_cfg_internal.lua

local ffi = require "ffi"


-- Control optimisation attempts.

-- Don't use lots of short-term locks - use great long ones, reducing the overall locks-per-second
VCHI_COARSE_LOCKING = false

-- Avoid lock then unlock on exit from blocking queue operations (msg tx, bulk rx/tx)
-- (only relevant if VCHI_COARSE_LOCKING)
VCHI_ELIDE_BLOCK_EXIT_LOCK = false

-- Avoid lock on non-blocking peek
-- (only relevant if VCHI_COARSE_LOCKING)
VCHI_AVOID_PEEK_LOCK = false

-- Use one slot-handler thread per connection, rather than 1 thread dealing with all connections in rotation.
VCHI_MULTIPLE_HANDLER_THREADS = false

-- Put free descriptors onto the head of the free queue, rather than the tail, so that we don't thrash
-- our way through the pool of descriptors.
VCHI_PUSH_FREE_DESCRIPTORS_ONTO_HEAD = false

-- Don't issue a MSG_AVAILABLE callback for every single message. Possibly only safe if VCHI_COARSE_LOCKING.
VCHI_FEWER_MSG_AVAILABLE_CALLBACKS = false

-- Don't use message descriptors for TX messages that don't need them
VCHI_MINIMISE_TX_MSG_DESCRIPTORS = false

-- Nano-locks for multiqueue
--VCHI_MQUEUE_NANOLOCKS = false

-- Lock-free(er) dequeuing
--VCHI_RX_NANOLOCKS = false



--[[
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