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local inn, out, log = io.stdin, io.stdout, io.stderr
local main, parseArgs, printHelp, run, runAsPipe, runWithStdinFilelist
function printHelp()
io.stdout:write(" \n"
.." Try to get some useful data out of a 'smap' dump.\n"
.." \n"
.." Options:\n"
.." \n"
.." --yolo\n"
.." WARN: Only use if you know what you do.\n"
.." \n"
.." --stdin-filelist\n"
.." Read LF separated file list form stdin.\n"
.." \n")
end
function parseArgs( app )
if #_ENV.arg == 0 then log:write("EINVAL: Try --help\n") return end
app.isHelp = false
local isYolo = false
local iA = 0
while true do iA = iA + 1
local arg = _ENV.arg[iA]
if not arg then
break
elseif arg == "--help" then
app.isHelp = true; return 0
elseif arg == "--yolo" then
isYolo = true
elseif arg == "--date" then
iA = iA + 1
app.dateStr = _ENV.arg[iA]
if not app.dateStr then log:write("EINVAL: --date needs value\n") return end
elseif arg == "--stdin-filelist" then
app.isStdinFilelist = true
else
log:write("EINVAL: ".. arg .."\n") return
end
end
return 0
end
function runAsPipe( app )
local iLine = 0
if #app.whitelist > 0 then
log:write("[INFO ] Filtering enabled\n")
end
local isHdrWritten = false
while true do
iLine = iLine + 1
local buf = inn:read("l")
if iLine == 1 then goto nextLine end
--log:write("BUF: ".. buf .."\n")
local addr, sz, perm, note = buf:match("^([%w]+) +(%d+[A-Za-z]?) ([^ ]+) +(.*)$")
if not sz and buf:find("^ +total +%d+[KMGTPE]$") then break end
if not sz then log:write("BUF: '"..tostring(buf).."'\n")error("TODO_20231103111415") end
if sz:find("K$") then sz = sz:gsub("K$", "") * 1024 end
if #app.whitelist > 0 then
if not whitelist[addr] then goto nextLine end
end
if not isHdrWritten then
isHdrWritten = true
out:write("c; Addr ; Size ; Perm ; Note ; arg.date\n")
end
out:write(string.format("r; %s ; %12d ; %s ; %-12s ; %s\n", addr, sz, perm, note, (app.dateStr or"")))
::nextLine::
end
end
function debugPrintRecursive( out, obj, prefix, isSubCall )
local typ = type(obj)
if false then
elseif typ == "string" then
out:write("\"") out:write((obj:gsub("\n", "\\n"):gsub("\r", "\\r"))) out:write("\"")
elseif typ == "number" then
out:write(obj)
elseif typ == "nil" then
out:write("nil")
elseif typ == "table" then
local subPrefix = (prefix)and(prefix.." ")or(" ")
for k, v in pairs(obj) do
out:write("\n") out:write(prefix or "")
debugPrintRecursive(out, k, prefix, true) out:write(": ")
debugPrintRecursive(out, v, subPrefix, true)
end
else
error(tostring(typ))
end
if not isSubCall then out:write("\n")end
end
function runWithStdinFilelist( app )
while true do
local srcFilePath = inn:read("l")
if not srcFilePath then break end
--log:write("[DEBUG] src file \"".. srcFilePath .."\"\n")
local srcFile = io.open(srcFilePath, "rb")
if not srcFile then error("fopen(\""..tostring(srcFilePath).."\")") end
collectData(app, srcFile, srcFilePath)
end
removeUnchanged(app)
printResult(app)
end
function collectData( app, src, timestamp )
assert(src)
assert(timestamp)
local iLine = 0
while true do
iLine = iLine + 1
local buf = src:read("l")
if iLine == 1 then goto nextLine end
local addr, sz, perm, note = buf:match("^([%w]+) +(%d+[A-Za-z]?) ([^ ]+) +(.*)$")
if not sz and buf:find("^ +total +%d+[A-Za-z]?\r?$") then break end
if not sz then log:write("[ERROR] BUF: '"..tostring(buf).."'\n")error("TODO_20231103111415") end
if sz:find("K$") then sz = sz:gsub("K$", "") * 1024 end
local addrObj = app.addrs[addr]
if not addrObj then
addrObj = { measures = {} }
app.addrs[addr] = addrObj
end
local measure = { ts = timestamp, sz = sz, }
assert(not addrObj.measures[timestamp])
addrObj.measures[timestamp] = measure
::nextLine::
end
end
function removeUnchanged( app )
local addrsWhichHaveChanged = {}
local knownSizes = {}
for addr, addrObj in pairs(app.addrs) do
for ts, measure in pairs(addrObj.measures) do
local knownSizeKey = assert(addr)
local knownSize = knownSizes[knownSizeKey]
if not knownSize then
knownSize = measure.sz;
knownSizes[knownSizeKey] = knownSize
elseif knownSize ~= measure.sz then
addrsWhichHaveChanged[addr] = true
end
end
end
local newAddrs = {}
for addr, addrObj in pairs(app.addrs) do
if addrsWhichHaveChanged[addr] then
newAddrs[addr] = addrObj
end
end
app.addrs = newAddrs
end
function printResult( app )
-- arrange data
local addrSet, tsSet, szByAddrAndTs = {}, {}, {}
for addr, addrObj in pairs(app.addrs) do
local measures = assert(addrObj.measures)
addrSet[addr] = true
for ts, measure in pairs(measures) do
assert(ts == measure.ts)
local sz = measure.sz
tsSet[ts] = true
szByAddrAndTs[addr.."\0"..ts] = sz
end
end
local addrArr, tsArr = {}, {}
for k,v in pairs(addrSet)do table.insert(addrArr, k) end
for k,v in pairs(tsSet)do table.insert(tsArr, k) end
table.sort(addrArr, function( a, b )return a < b end)
table.sort(tsArr, function( a, b )return a < b end)
--
out:write("c;file")
for _, addr in ipairs(addrArr) do out:write(";".. addr) end
out:write("\n")
for iTs, ts in ipairs(tsArr) do
out:write("r;".. filterTsForOutput(app, ts))
for iAddr, addr in ipairs(addrArr) do
local sz = szByAddrAndTs[assert(addr).."\0"..assert(ts)]
out:write(";".. sz)
end
out:write("\n")
end
end
function filterTsForOutput( app, ts )
local y, mnth, d, h, min, sec = ts:match("^houston%-prod%-pmap%-(%d%d%d%d)(%d%d)(%d%d)%-(%d%d)(%d%d)(%d%d).txt$")
return "".. os.time{ year=y, month=mnth, day=d, hour=h, min=min, sec=sec, }
end
function sortedFromMap( map, smallerPredicate )
if not smallerPredicate then smallerPredicate = function(a,b)return a.key < b.key end end
local arr = {}
for k, v in pairs(map) do table.insert(arr, {key=k, val=v}) end
table.sort(arr, smallerPredicate)
return arr
end
function run( app )
if app.isStdinFilelist then
runWithStdinFilelist(app)
else
runAsPipe(app)
end
end
function main()
local app = {
isHelp = false,
isStdinFilelist = false,
addrs = {},
whitelist = {
--["00000000DEADBEAF"] = true,
}
}
if parseArgs(app) ~= 0 then os.exit(1) end
if app.isHelp then printHelp() return end
run(app)
end
main()
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