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Save forceloaded blocks file periodically (#8535)
saves the forceloaded blocks periodically. checks every 10 seconds if the forceloaded blocks got changed in-game and persists them on-disk if that's the case
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@ -8,6 +8,9 @@ local blocks_forceloaded
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local blocks_temploaded = {}
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local total_forceloaded = 0
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-- true, if the forceloaded blocks got changed (flag for persistence on-disk)
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local forceload_blocks_changed = false
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local BLOCKSIZE = core.MAP_BLOCKSIZE
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local function get_blockpos(pos)
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return {
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@ -31,6 +34,9 @@ local function get_relevant_tables(transient)
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end
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function core.forceload_block(pos, transient)
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-- set changed flag
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forceload_blocks_changed = true
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local blockpos = get_blockpos(pos)
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local hash = core.hash_node_position(blockpos)
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local relevant_table, other_table = get_relevant_tables(transient)
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@ -51,6 +57,9 @@ function core.forceload_block(pos, transient)
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end
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function core.forceload_free_block(pos, transient)
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-- set changed flag
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forceload_blocks_changed = true
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local blockpos = get_blockpos(pos)
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local hash = core.hash_node_position(blockpos)
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local relevant_table, other_table = get_relevant_tables(transient)
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@ -95,6 +104,28 @@ core.after(5, function()
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end
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end)
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core.register_on_shutdown(function()
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-- persists the currently forceloaded blocks to disk
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local function persist_forceloaded_blocks()
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write_file(wpath.."/force_loaded.txt", blocks_forceloaded)
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end)
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end
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-- periodical forceload persistence
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local function periodically_persist_forceloaded_blocks()
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-- only persist if the blocks actually changed
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if forceload_blocks_changed then
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persist_forceloaded_blocks()
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-- reset changed flag
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forceload_blocks_changed = false
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end
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-- recheck after some time
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core.after(10, periodically_persist_forceloaded_blocks)
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end
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-- persist periodically
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core.after(5, periodically_persist_forceloaded_blocks)
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-- persist on shutdown
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core.register_on_shutdown(persist_forceloaded_blocks)
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