logging optimizations

This commit is contained in:
Mikayla Fischler 2022-05-06 10:48:46 -04:00
parent b7e5ced2e8
commit d0b2820160

View File

@ -1,11 +1,11 @@
local util = require("scada-common.util")
--
-- File System Logger
--
local log = {}
-- we use extra short abbreviations since computer craft screens are very small
local MODE = {
APPEND = 0,
NEW = 1
@ -13,54 +13,63 @@ local MODE = {
log.MODE = MODE
----------------------------
-- PRIVATE DATA/FUNCTIONS --
----------------------------
local LOG_DEBUG = true
local log_path = "/log.txt"
local mode = MODE.APPEND
local file_handle = nil
local _log_sys = {
path = "/log.txt",
mode = MODE.APPEND,
file = nil
}
local _log = function (msg)
local stamped = os.date("[%c] ") .. msg
local time_stamp = os.date("[%c] ")
local stamped = time_stamp .. msg
-- attempt to write log
local status, result = pcall(function ()
file_handle.writeLine(stamped)
file_handle.flush()
_log_sys.file.writeLine(stamped)
_log_sys.file.flush()
end)
-- if we don't have much space, we need to create a new log file
local delete_log = fs.getFreeSpace(log_path) < 100
-- if we don't have space, we need to create a new log file
if not status then
if result == "Out of space" then
delete_log = true
-- will delete log file
elseif result ~= nil then
print("unknown error writing to logfile: " .. result)
util.println("unknown error writing to logfile: " .. result)
end
end
if delete_log then
if (result == "Out of space") or (fs.getFreeSpace(_log_sys.path) < 100) then
-- delete the old log file and open a new one
file_handle.close()
fs.delete(log_path)
init(log_path, mode)
_log_sys.file.close()
fs.delete(_log_sys.path)
init(_log_sys.path, _log_sys.mode)
-- leave a message
local notif = os.date("[%c] ") .. "recycled log file"
file_handle.writeLine(notif)
file_handle.writeLine(stamped)
file_handle.flush()
_log_sys.file.writeLine(time_stamp .. "recycled log file")
_log_sys.file.writeLine(stamped)
_log_sys.file.flush()
end
end
log.init = function (path, write_mode)
log_path = path
mode = write_mode
----------------------
-- PUBLIC FUNCTIONS --
----------------------
if mode == MODE.APPEND then
file_handle = fs.open(path, "a")
log.init = function (path, write_mode)
_log_sys.path = path
_log_sys.mode = write_mode
if _log_sys.mode == MODE.APPEND then
_log_sys.file = fs.open(path, "a")
else
file_handle = fs.open(path, "w+")
_log_sys.file = fs.open(path, "w+")
end
end
@ -69,14 +78,14 @@ log.debug = function (msg, trace)
local dbg_info = ""
if trace then
local info = debug.getinfo(2)
local name = ""
if debug.getinfo(2).name ~= nil then
name = ":" .. debug.getinfo(2).name .. "():"
if info.name ~= nil then
name = ":" .. info.name .. "():"
end
dbg_info = debug.getinfo(2).short_src .. ":" .. name ..
debug.getinfo(2).currentline .. " > "
dbg_info = info.short_src .. ":" .. name .. info.currentline .. " > "
end
_log("[DBG] " .. dbg_info .. msg)
@ -95,14 +104,14 @@ log.error = function (msg, trace)
local dbg_info = ""
if trace then
local info = debug.getinfo(2)
local name = ""
if debug.getinfo(2).name ~= nil then
name = ":" .. debug.getinfo(2).name .. "():"
if info.name ~= nil then
name = ":" .. info.name .. "():"
end
dbg_info = debug.getinfo(2).short_src .. ":" .. name ..
debug.getinfo(2).currentline .. " > "
dbg_info = info.short_src .. ":" .. name .. info.currentline .. " > "
end
_log("[ERR] " .. dbg_info .. msg)