X-Git-Url: https://git.archive.openwrt.org/?p=project%2Fluci.git;a=blobdiff_plain;f=libs%2Fcore%2Fluasrc%2Futil.lua;h=a248026f10357d54f04ab4ff0969787ba90dc2df;hp=79f01a6269286ae642bf7735e5fcc0e54ad4777e;hb=ddd1ba088ed3b93b3485e34d05c427d43306c744;hpb=b0abe4aa08517b4bab745d3638c538c16f2fa806 diff --git a/libs/core/luasrc/util.lua b/libs/core/luasrc/util.lua index 79f01a626..a248026f1 100644 --- a/libs/core/luasrc/util.lua +++ b/libs/core/luasrc/util.lua @@ -37,6 +37,7 @@ local rawget, rawset, unpack = rawget, rawset, unpack local tostring, type, assert = tostring, type, assert local ipairs, pairs, loadstring = ipairs, pairs, loadstring local require, pcall, xpcall = require, pcall, xpcall +local collectgarbage, get_memory_limit = collectgarbage, get_memory_limit --- LuCI utility functions. module "luci.util" @@ -48,8 +49,10 @@ getmetatable("").__mod = function(a, b) if not b then return a elseif type(b) == "table" then + for k, _ in pairs(b) do if type(b[k]) == "userdata" then b[k] = tostring(b[k]) end end return a:format(unpack(b)) else + if type(b) == "userdata" then b = tostring(b) end return a:format(b) end end @@ -113,34 +116,31 @@ end -- Scope manipulation routines -- ---- Create a new or get an already existing thread local store associated with --- the current active coroutine. A thread local store is private a table object --- whose values can't be accessed from outside of the running coroutine. --- @return Table value representing the corresponding thread local store -function threadlocal() - local tbl = {} - - local function get(self, key) - local c = coroutine.running() - local thread = coxpt[c] or c or 0 - if not rawget(self, thread) then - return nil - end - return rawget(self, thread)[key] - end +local tl_meta = { + __mode = "k", - local function set(self, key, value) - local c = coroutine.running() - local thread = coxpt[c] or c or 0 - if not rawget(self, thread) then - rawset(self, thread, {}) + __index = function(self, key) + local t = rawget(self, coxpt[coroutine.running()] + or coroutine.running() or 0) + return t and t[key] + end, + + __newindex = function(self, key, value) + local c = coxpt[coroutine.running()] or coroutine.running() or 0 + if not rawget(self, c) then + rawset(self, c, { [key] = value }) + else + rawget(self, c)[key] = value end - rawget(self, thread)[key] = value end +} - setmetatable(tbl, {__index = get, __newindex = set, __mode = "k"}) - - return tbl +--- Create a new or get an already existing thread local store associated with +-- the current active coroutine. A thread local store is private a table object +-- whose values can't be accessed from outside of the running coroutine. +-- @return Table value representing the corresponding thread local store +function threadlocal(tbl) + return setmetatable(tbl or {}, tl_meta) end @@ -200,7 +200,7 @@ local function _pcdata_repl(c) ( i >= 0x0E and i <= 0x1F ) or ( i == 0x7F ) then return "" - + elseif ( i == 0x26 ) or ( i == 0x27 ) or ( i == 0x22 ) or ( i == 0x3C ) or ( i == 0x3E ) then @@ -218,7 +218,7 @@ end -- @param value String containing the HTML text -- @return String with HTML tags stripped of function striptags(s) - return pcdata(s:gsub("]*>", " "):gsub("%s+", " ")) + return pcdata(tostring(s):gsub("]*>", " "):gsub("%s+", " ")) end --- Splits given string on a defined separator sequence and return a table @@ -282,6 +282,22 @@ function cmatch(str, pat) return count end +--- Return a matching iterator for the given value. The iterator will return +-- one token per invocation, the tokens are separated by whitespace. If the +-- input value is a table, it is transformed into a string first. A nil value +-- will result in a valid interator which aborts with the first invocation. +-- @param val The value to scan (table, string or nil) +-- @return Iterator which returns one token per call +function imatch(v) + if v == nil then + v = "" + elseif type(v) == "table" then + v = table.concat(v, " ") + end + + return v:gmatch("%S+") +end + --- Parse certain units from the given string and return the canonical integer -- value or 0 if the unit is unknown. Upper- or lower case is irrelevant. -- Recognized units are: @@ -525,7 +541,7 @@ function get_bytecode(val) code = string.dump( loadstring( "return " .. serialize_data(val) ) ) end - return code and strip_bytecode(code) + return code -- and strip_bytecode(code) end --- Strips unnescessary lua bytecode from given string. Information like line @@ -554,10 +570,10 @@ function strip_bytecode(code) end end - local strip_function - strip_function = function(code) + local function strip_function(code) local count, offset = subint(code, 1, size) - local stripped, dirty = string.rep("\0", size), offset + count + local stripped = { string.rep("\0", size) } + local dirty = offset + count offset = offset + count + int * 2 + 4 offset = offset + int + subint(code, offset, int) * ins count, offset = subint(code, offset, int) @@ -575,10 +591,11 @@ function strip_bytecode(code) end end count, offset = subint(code, offset, int) - stripped = stripped .. code:sub(dirty, offset - 1) + stripped[#stripped+1] = code:sub(dirty, offset - 1) for n = 1, count do local proto, off = strip_function(code:sub(offset, -1)) - stripped, offset = stripped .. proto, offset + off - 1 + stripped[#stripped+1] = proto + offset = offset + off - 1 end offset = offset + subint(code, offset, int) * int + int count, offset = subint(code, offset, int) @@ -589,8 +606,8 @@ function strip_bytecode(code) for n = 1, count do offset = offset + subint(code, offset, size) + size end - stripped = stripped .. string.rep("\0", int * 3) - return stripped, offset + stripped[#stripped+1] = string.rep("\0", int * 3) + return table.concat(stripped), offset end return code:sub(1,12) .. strip_function(code:sub(13,-1)) @@ -703,7 +720,7 @@ end --- Returns the absolute path to LuCI base directory. -- @return String containing the directory path function libpath() - return require "luci.fs".dirname(ldebug.__file__) + return require "nixio.fs".dirname(ldebug.__file__) end @@ -770,18 +787,19 @@ function copcall(f, ...) end -- Handle return value of protected call -function handleReturnValue(err, co, status, ...) +function handleReturnValue(err, co, status, arg1, arg2, arg3, arg4, arg5) if not status then - return false, err(debug.traceback(co, (...)), ...) + return false, err(debug.traceback(co, arg1), arg1, arg2, arg3, arg4, arg5) end - if coroutine.status(co) == 'suspended' then - return performResume(err, co, coroutine.yield(...)) - else - return true, ... + + if coroutine.status(co) ~= 'suspended' then + return true, arg1, arg2, arg3, arg4, arg5 end + + return performResume(err, co, coroutine.yield(arg1, arg2, arg3, arg4, arg5)) end -- Resume execution of protected function call -function performResume(err, co, ...) - return handleReturnValue(err, co, coroutine.resume(co, ...)) +function performResume(err, co, arg1, arg2, arg3, arg4, arg5) + return handleReturnValue(err, co, coroutine.resume(co, arg1, arg2, arg3, arg4, arg5)) end