PyExt module

C extension interface.

PyExt.FFI

ffi

cffi interface.

PyExt.FFILIB

object

cffi library.

class PyExt.EvPoll

Bases: object

Evpoll interface.

ffi

ffi

cffi interface.

ffilib

object

cffi library.

pollpairs

object

cffi polling pair buffer.

close()

Handle close.

modify(evfd, events)

Modify event flag.

Parameters:

• evfd (int) – File descriptor.
• events (int) – Event flag.

Returns:

None

poll(timeout, maxevts=65536)

Poll events.

Parameters:

• timeout (int) – Timeout.
• maxevts (int) – Maximum number of events which are polled.

Returns:

[ – Event pairs (fd, events).

Return type:

int, int

register(evfd, events)

Register event.

Parameters:

• evfd (int) – File descriptor.
• events (int) – Event flag.

Returns:

None

unregister(evfd)

Unregister event.

Parameters:evfd (int) – File descriptor. Returns:None

PyExt.create_task(exe_path, argv, envp, fd_mapping, work_path, root_path, uid, gid, timelimit, memlimit, restrict_level)

Create a task.

Parameters:

• exe_path (string) – Executable file path.
• argv ([string]) – List of arguments.
• envp ([string]) – List of environment variables.
• fd_mapping (dict) – File descriptor mapping.
• work_path (string) – Working directory.
• root_path (string) – Root directory.
• uid (int) – UID of sandbox.
• gid (int) – GID of sandbox.
• timelimit (int) – Timelimit of sandbox.
• memlimit (int) – Memlimit of sandbox.
• restrict_level (int) – Restriction level of sandbox.

Returns:

Task ID, or None if failed to create the task.

Return type:

int

PyExt.emit_task()

Emit tasks.

PyExt.init()

Initialize the module.

PyExt.start_task(task_id, callback, started_callback=None)

Start a task.

The task may be pended if the running queue is full.

Parameters:

• task_id (int) – Task ID.
• callback (function) – Done callback.
• started_callback (function, optinal) – Started callback.

Returns:

None