mirror of
https://github.com/JamesonHuang/OpenWrt_Luci_Lua.git
synced 2024-11-30 16:33:01 +00:00
38 lines
874 B
Lua
38 lines
874 B
Lua
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local debug = require "debug"
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local io = require "io"
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local collectgarbage, floor = collectgarbage, math.floor
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module "luci.debug"
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__file__ = debug.getinfo(1, 'S').source:sub(2)
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-- Enables the memory tracer with given flags and returns a function to disable the tracer again
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function trap_memtrace(flags, dest)
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flags = flags or "clr"
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local tracefile = io.open(dest or "/tmp/memtrace", "w")
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local peak = 0
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local function trap(what, line)
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local info = debug.getinfo(2, "Sn")
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local size = floor(collectgarbage("count"))
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if size > peak then
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peak = size
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end
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if tracefile then
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tracefile:write(
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"[", what, "] ", info.source, ":", (line or "?"), "\t",
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(info.namewhat or ""), "\t",
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(info.name or ""), "\t",
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size, " (", peak, ")\n"
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)
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end
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end
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debug.sethook(trap, flags)
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return function()
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debug.sethook()
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tracefile:close()
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end
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end
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