整理代码

Zframework/profile.lua

@@ -15,21 +15,17 @@ local _ncalls = {}
 -- list of internal profiler functions
 local _internal = {}
 
-local getInfo=debug.getinfo
+local getInfo = debug.getinfo
 function profile.hooker(event, line, info)
 	info = info or getInfo(2, 'fnS')
 	local f = info.func
 	-- ignore the profiler itself
-	if _internal[f] or info.what ~= "Lua" then
-		return
-	end
+	if _internal[f] or info.what ~= "Lua" then return end
 	-- get the function name if available
-	if info.name then
-		_labeled[f] = info.name
-	end
+	if info.name then _labeled[f] = info.name end
 	-- find the line definition
 	if not _defined[f] then
-		_defined[f] = info.short_src..":"..info.linedefined
+		_defined[f] = info.short_src .. ":" .. info.linedefined
 		_ncalls[f] = 0
 		_telapsed[f] = 0
 	end
@@ -49,13 +45,6 @@ function profile.hooker(event, line, info)
 	end
 end
 
---- Sets a clock function to be used by the profiler.
--- @param f Clock function that returns a number
-function profile.setclock(f)
-	assert(type(f) == "function", "clock must be a function")
-	clock = f
-end
-
 --- Starts collecting data.
 function profile.start()
 	if rawget(_G, 'jit') then
@@ -68,15 +57,15 @@ end
 --- Stops collecting data.
 function profile.stop()
 	debug.sethook()
-	for f in next,_tcalled do
+	for f in next, _tcalled do
 		local dt = clock() - _tcalled[f]
 		_telapsed[f] = _telapsed[f] + dt
 		_tcalled[f] = nil
 	end
 	-- merge closures
 	local lookup = {}
-	for f, d in next,_defined do
-		local id = (_labeled[f] or '?')..d
+	for f, d in next, _defined do
+		local id = (_labeled[f] or '?') .. d
 		local f2 = lookup[id]
 		if f2 then
 			_ncalls[f2] = _ncalls[f2] + (_ncalls[f] or 0)
@@ -92,31 +81,22 @@ end
 
 --- Resets all collected data.
 function profile.reset()
-	for f in next,_ncalls do
-		_ncalls[f] = 0
-	end
-	for f in next,_telapsed do
-		_telapsed[f] = 0
-	end
-	for f in next,_tcalled do
-		_tcalled[f] = nil
-	end
+	for f in next, _ncalls do _ncalls[f] = 0 end
+	for f in next, _telapsed do _telapsed[f] = 0 end
+	for f in next, _tcalled do _tcalled[f] = nil end
 	collectgarbage('collect')
 end
 
 function profile.comp(a, b)
 	local dt = _telapsed[b] - _telapsed[a]
-	if dt == 0 then
-		return _ncalls[b] < _ncalls[a]
-	end
-	return dt < 0
+	return dt == 0 and _ncalls[b] < _ncalls[a] or dt < 0
 end
 
 --- Iterates all functions that have been called since the profile was started.
 -- @param n Number of results (optional)
 function profile.query(limit)
 	local t = {}
-	for f, n in next,_ncalls do
+	for f, n in next, _ncalls do
 		if n > 0 then
 			t[#t + 1] = f
 		end
@@ -132,12 +112,12 @@ function profile.query(limit)
 		if _tcalled[f] then
 			dt = clock() - _tcalled[f]
 		end
-		t[i] = { i, _labeled[f] or '?', _ncalls[f], _telapsed[f] + dt, _defined[f] }
+		t[i] = {i, _labeled[f] or '?', _ncalls[f], _telapsed[f] + dt, _defined[f]}
 	end
 	return t
 end
 
-local cols = { 3, 29, 11, 24, 32 }
+local cols = {3, 29, 11, 24, 32}
 function profile.report(n)
 	local out = {}
 	local report = profile.query(n)
@@ -148,7 +128,7 @@ function profile.report(n)
 			s = tostring(s)
 			local l1 = s:len()
 			if l1 < l2 then
-				s = s..(' '):rep(l2-l1)
+				s = s .. (' '):rep(l2 - l1)
 			elseif l1 > l2 then
 				s = s:sub(l1 - l2 + 1, l1)
 			end
@@ -159,14 +139,14 @@ function profile.report(n)
 
 	local row = " +-----+-------------------------------+-------------+--------------------------+----------------------------------+ \n"
 	local col = " | #   | Function                      | Calls       | Time                     | Code                             | \n"
-	local sz = row..col..row
+	local sz = row .. col .. row
 	if #out > 0 then
-		sz = sz..' | '..table.concat(out, ' | \n | ')..' | \n'
+		sz = sz .. ' | ' .. table.concat(out, ' | \n | ') .. ' | \n'
 	end
-	return '\n'..sz..row
+	return '\n' .. sz .. row
 end
 
-local switch=false
+local switch = false
 function profile.switch()
 	if switch then
 		profile.stop()
@@ -177,14 +157,12 @@ function profile.switch()
 		PROFILE.start()
 		LOG.print("profile start!")
 	end
-	switch=not switch
+	switch = not switch
 end
 
 -- store all internal profiler functions
-for _, v in next,profile do
-	if type(v) == "function" then
-		_internal[v] = true
-	end
+for _, v in next, profile do
+	if type(v) == "function" then _internal[v] = true end
 end
 
-return profile
+return profile