profile.lua

local c = require "profile.c"

local M = {
}

-- luacheck: ignore coroutine on_coroutine_destory
local old_co_create = coroutine.create
local old_co_wrap = coroutine.wrap

function coroutine.create(f)
    return old_co_create(function (...)
            c.mark()
            return f(...)
        end)
end

function coroutine.wrap(f)
    return old_co_wrap(function (...)
            c.mark()
            return f(...)
        end)
end

local exists = 0
function M.start()
    if exists == 0 then
        c.start()
    end
    exists = exists + 1
end

function M.stop()
    local record_time, nodes = c.dump()
    exists = exists - 1
    if exists <= 0  then
        exists = 0
        c.stop()
    end
    return {time = record_time, nodes = nodes}
end


return M