Lunatik
Lua API · System

taskModule

Linux task interface.

Class task

task:comm () Returns the name (comm) of the task, at most 15 characters.
task:cpu () Returns the CPU the task last ran on.
task:pid () Returns the process ID (PID) of the task.
task:prio () Returns the dynamic priority of the task.
task:tgid () Returns the thread group ID (TGID) of the task.

task

current () Gets an object representing the current kernel task.

Class task in detail

A Linux task.
task:comm ()
Returns the name (comm) of the task, at most 15 characters. It is the executable’s basename unless the task renamed itself, as a kernel thread or a PR_SET_NAME caller does.

Returns

    string command name of the task
task:cpu ()
Returns the CPU the task last ran on.

Returns

    integer CPU index
task:pid ()
Returns the process ID (PID) of the task. For threads, this is the thread ID (TID) unique to each thread.

Returns

    integer pid of the task
task:prio ()
Returns the dynamic priority of the task. Ranges from -1 (highest) to 139 (lowest): deadline tasks are -1, real-time tasks are 0-99 and normal tasks are 100-139.

Returns

    integer priority of the task
task:tgid ()
Returns the thread group ID (TGID) of the task. For the main thread, TGID equals PID. For other threads in the group, TGID is the PID of the main thread.

Returns

    integer tgid of the task

task in detail

current ()
Gets an object representing the current kernel task. In a softirq or hardirq callback that is the task the interrupt found running.

Returns

    task task object for the current task.

Usage

local task = require("task")
local t = task.current()
print(t:pid(), t:comm())