If that bit is *clear*, then the word before the current chunk size contains the previous chunk size, and can be used to find the front of the previous chunk. 这里简单的讲, P为0表示前面的chunk已经不再使用. 而产生"double free
local types = require("tableshape").typesYou can use the types table to check the types of simple values, not just tables. Calling the type checker like a function will test a value to see if it matches the shape or type. It returns true on a match, or nil and the error message ...
Lua脚本如下: 1--Dump RTP h.264 payload to raw h.264 file (*.264)2--According to RFC3984 to dissector H264 payload of RTP to NALU, and write it3--to from<sourceIp_sourcePort>to<dstIp_dstPort>.264 file. By now, we support single NALU,4--STAP-A and FU-A format RTP payload ...
(ngx.ERR,"request failed:",err)returnend--At this point, the entire request / response is complete and the connection--will be closed or back on the connection pool.--The `res` table contains the expeected `status`, `headers` and `body` fields.localstatus=res.statuslocallength=res....
And this is the default value of this directive. Back to TOC demo_echo syntax: demo_echo str; default: -; context: server example: demo_echo "hello world"; This directive is used for ngx_tcp_demo_module, which define a echo protocol. The request stream is 4 bytes head contains ...
Called to set default settings (if any) associated with the script. You would typically callDefault Value Functionsfor the on the settings in order to set its default values. Parameters: settings– Settings associated with the script. script_update(settings) ...
Equivalent to log_by_lua_block, except that the file specified by <path-to-lua-script-file> contains the Lua code or LuaJIT bytecode to be executed.Nginx variables can be used in the <path-to-lua-script-file> string to provide flexibility. This however carries some risks and is not ...
if v >= 128 then local sh = 7; v = v - 128 repeat local r = p[0] v = v + bit.lshift(bit.band(r, 127), sh) sh = sh + 7 p = p + 1 until r < 128 end return v end -- The dumped bytecode contains several prototypes: one for "evil" ...
()—we might end up with an arbitrary number of values pushed onto the top of Lua’s stack. In our case, we expect a single table as a return value on top of the stack, and we want to assign that table value to the Lua global variablemymodule. Thelua_setglobal()function is ...
for key, value in pairs(_G) do print("Global " .. type(value) .. ": " .. key .. " = " .. tostring(value)) end Apart from the mentioned libraries, which appear with the type "table", and the classical global functions available in Lua (print, assert, etc) some interesting gl...