911 lines
30 KiB
Cython
911 lines
30 KiB
Cython
# Copyright (C) 2007-2015 various contributors (see AUTHORS)
|
|
#
|
|
# This file is part of Python-EFL.
|
|
#
|
|
# Python-EFL is free software; you can redistribute it and/or
|
|
# modify it under the terms of the GNU Lesser General Public
|
|
# License as published by the Free Software Foundation; either
|
|
# version 3 of the License, or (at your option) any later version.
|
|
#
|
|
# Python-EFL is distributed in the hope that it will be useful,
|
|
# but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
# Lesser General Public License for more details.
|
|
#
|
|
# You should have received a copy of the GNU Lesser General Public License
|
|
# along with this Python-EFL. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
from cpython cimport PyUnicode_AsUTF8String
|
|
|
|
cdef extern from "Python.h":
|
|
object PyUnicode_FromStringAndSize(char *s, Py_ssize_t len)
|
|
int PyObject_GetBuffer(obj, Py_buffer *view, int flags)
|
|
void PyBuffer_Release(Py_buffer *view)
|
|
|
|
|
|
cdef exe_flags2str(int value):
|
|
flags = []
|
|
if value & ECORE_EXE_PIPE_READ:
|
|
flags.append("PIPE_READ")
|
|
if value & ECORE_EXE_PIPE_WRITE:
|
|
flags.append("PIPE_WRITE")
|
|
if value & ECORE_EXE_PIPE_ERROR:
|
|
flags.append("PIPE_ERROR")
|
|
if value & ECORE_EXE_PIPE_READ_LINE_BUFFERED:
|
|
flags.append("PIPE_READ_LINE_BUFFERED")
|
|
if value & ECORE_EXE_PIPE_ERROR_LINE_BUFFERED:
|
|
flags.append("PIPE_ERROR_LINE_BUFFERED")
|
|
if value & ECORE_EXE_PIPE_AUTO:
|
|
flags.append("PIPE_AUTO")
|
|
if value & ECORE_EXE_RESPAWN:
|
|
flags.append("RESPAWN")
|
|
if value & ECORE_EXE_USE_SH:
|
|
flags.append("USE_SH")
|
|
if value & ECORE_EXE_NOT_LEADER:
|
|
flags.append("NOT_LEADER")
|
|
return ", ".join(flags)
|
|
|
|
|
|
cdef Eina_Bool _exe_event_filter_cb(void *data, int type, void *event) with gil:
|
|
cdef:
|
|
ExeEventFilter self = <ExeEventFilter>data
|
|
Ecore_Exe_Event_Add *e_add
|
|
Ecore_Exe_Event_Del *e_del
|
|
Ecore_Exe_Event_Data *e_data
|
|
Event e
|
|
list cbs
|
|
tuple cb
|
|
|
|
try:
|
|
assert self.event_type == type, "event is not what we asked? impossible"
|
|
if type == ECORE_EXE_EVENT_ADD:
|
|
e_add = <Ecore_Exe_Event_Add *>event
|
|
if e_add.exe != self.exe:
|
|
return 1
|
|
e = EventExeAdd()
|
|
elif type == ECORE_EXE_EVENT_DEL:
|
|
e_del = <Ecore_Exe_Event_Del *>event
|
|
if e_del.exe != self.exe:
|
|
return 1
|
|
e = EventExeDel()
|
|
elif type == ECORE_EXE_EVENT_DATA or type == ECORE_EXE_EVENT_ERROR:
|
|
e_data = <Ecore_Exe_Event_Data *>event
|
|
if e_data.exe != self.exe:
|
|
return 1
|
|
e = EventExeData()
|
|
else:
|
|
raise SystemError("unknown event type=%d" % type)
|
|
|
|
r = e._set_obj(event)
|
|
assert r != -1, "exe is not known?! impossible!"
|
|
|
|
cbs = self.callbacks[:] # copy, so we can change self.callbacks
|
|
for cb in cbs:
|
|
try:
|
|
cb[0](self.owner, e, *cb[1], **cb[2])
|
|
except Exception:
|
|
traceback.print_exc()
|
|
|
|
except Exception:
|
|
traceback.print_exc()
|
|
|
|
return 1 # always return true, no matter what
|
|
|
|
|
|
cdef class ExeEventFilter:
|
|
def __cinit__(self, *a, **ka):
|
|
self.event_type = -1
|
|
self.callbacks = []
|
|
|
|
def __dealloc__(self):
|
|
if self.handler != NULL:
|
|
ecore_event_handler_del(self.handler)
|
|
self.handler = NULL
|
|
|
|
self.exe = NULL
|
|
self.owner = None
|
|
self.event_type = -1
|
|
self.callbacks = None
|
|
|
|
def __init__(self, Exe exe not None, int event_type):
|
|
self.exe = exe.exe
|
|
self.owner = exe
|
|
self.event_type = event_type
|
|
self.callbacks = []
|
|
|
|
def delete(self):
|
|
if self.handler != NULL:
|
|
ecore_event_handler_del(self.handler)
|
|
self.handler = NULL
|
|
self.callbacks = None
|
|
|
|
def callback_add(self, func, args, kargs):
|
|
if self.handler == NULL:
|
|
self.handler = ecore_event_handler_add(
|
|
self.event_type, _exe_event_filter_cb, <void *>self)
|
|
self.callbacks.append((func, args, kargs))
|
|
|
|
def callback_del(self, func, args, kargs):
|
|
try:
|
|
self.callbacks.remove((func, args, kargs))
|
|
except ValueError:
|
|
raise ValueError(
|
|
"callback is not registered: %s, args=%s, kargs=%s" %
|
|
(func, args, kargs))
|
|
|
|
if self.callbacks:
|
|
return
|
|
|
|
if self.handler != NULL:
|
|
ecore_event_handler_del(self.handler)
|
|
self.handler = NULL
|
|
|
|
|
|
def exe_run_priority_set(int pri):
|
|
ecore_exe_run_priority_set(pri)
|
|
|
|
|
|
def exe_run_priority_get():
|
|
return ecore_exe_run_priority_get()
|
|
|
|
|
|
cdef object _ecore_exe_event_mapping
|
|
_ecore_exe_event_mapping = {}
|
|
|
|
|
|
cdef void _ecore_exe_pre_free_cb(void *data, const Ecore_Exe *exe) with gil:
|
|
cdef Exe obj
|
|
try:
|
|
if data == NULL:
|
|
raise ValueError("data parameter is NULL")
|
|
else:
|
|
obj = <Exe>data
|
|
obj._unset_obj()
|
|
except Exception:
|
|
traceback.print_exc()
|
|
|
|
|
|
cdef class Exe(object):
|
|
"""
|
|
|
|
Spawns a child process with its stdin/out available for communication.
|
|
|
|
This function forks and runs the given command using ``/bin/sh``.
|
|
|
|
Note that the process handle is only valid until a child process
|
|
terminated event is received. After all handlers for the child
|
|
process terminated event have been called, the handle will be
|
|
freed by Ecore. In this case the Python wrapper becomes "shallow"
|
|
and all operations will fail or return bogus/dummy values,
|
|
although it should not crash.
|
|
|
|
This class behavior is configurable by means of given constructor
|
|
*flags*, that will make Ecore monitor process' stdout and stderr,
|
|
emitting events on main loop.
|
|
|
|
To write use :py:meth:`send`. To read listen to ``ECORE_EXE_EVENT_DATA``
|
|
or ``ECORE_EXE_EVENT_ERROR`` events (see below). Ecore may
|
|
buffer read and error data until a newline character if asked for
|
|
with the *flags*. All data will be included in the events
|
|
(newlines will be replaced with NULLS if line is buffered).
|
|
|
|
``ECORE_EXE_EVENT_DATA`` events will only happen if the process is
|
|
run with ``ECORE_EXE_PIPE_READ`` enabled in the *flags*. The same
|
|
with the error version. Writing will only be allowed with
|
|
``ECORE_EXE_PIPE_WRITE`` enabled in the *flags*.
|
|
|
|
.. rubric:: Instance Event Handling
|
|
|
|
To make use easier, there are methods that automatically filter
|
|
events for this instance and deletes them when the ``Exe`` is
|
|
deleted:
|
|
|
|
- on_add_event_add()
|
|
- on_add_event_del()
|
|
- on_del_event_add()
|
|
- on_del_event_del()
|
|
- on_data_event_add()
|
|
- on_data_event_del()
|
|
- on_error_event_add()
|
|
- on_error_event_del()
|
|
|
|
The callback signatures are::
|
|
|
|
func(exe, event, *args, **kargs)
|
|
|
|
In contrast with C-api conformant functions. This only receives
|
|
the events from this exact exe instance. The signature is also
|
|
very different, the first parameter is the ``Exe`` reference and
|
|
the return value does **not** removes the event listener!
|
|
|
|
Using this method is likely more efficient than the C-api since it
|
|
will not convert from C to Python lots of times, possibly useless.
|
|
|
|
However, there are C-api conformat functions as well.
|
|
|
|
.. rubric:: Event Handling (C-api conformant)
|
|
|
|
Getting data from executed processed is done by means of event
|
|
handling, which is also used to notify whenever this process
|
|
really started or died.
|
|
|
|
One should listen to events in the main loop, such as:
|
|
|
|
EventExeAdd
|
|
listen with ``on_exe_add_event_add()`` to know when sub processes
|
|
were started and ready to be used.
|
|
|
|
EventExeDel
|
|
listen with ``on_exe_del_event_add()`` to know when sub processes died.
|
|
|
|
EventExeData
|
|
listen with ``on_exe_data_event_add()`` to know when sub processes
|
|
output data to their stdout.
|
|
|
|
EventExeError
|
|
listen with ``on_exe_error_event_add()`` to know when sub processes
|
|
output data to their stderr.
|
|
|
|
Events will have the following signature, as explained in
|
|
``EventHandler``::
|
|
|
|
func(event, *args, **kargs): bool
|
|
|
|
That mean once registered, your callback ``func`` will be called for all
|
|
known ``Exe`` instances (that were created from Python!). You can query
|
|
which instance created such event with ``event.exe`` property. Thus you
|
|
often need to filter if the event you got is from the instance you need!
|
|
(This is designed to match C-api).
|
|
|
|
Once your function returns evaluates to *False* (note: not returning
|
|
means returning *None*, that evaluates to *False*!), your callback
|
|
will not be called anymore and your handler is deleted.
|
|
|
|
One may delete handlers explicitly with ``EventHandler.delete()``
|
|
method.
|
|
|
|
|
|
:param exe_cmd: command to execute as subprocess.
|
|
:type exe_cmd: str
|
|
:param flags:
|
|
if given (!= 0), should be bitwise OR of
|
|
|
|
ECORE_EXE_PIPE_READ
|
|
Exe Pipe Read mask
|
|
|
|
ECORE_EXE_PIPE_WRITE
|
|
Exe Pipe Write mask
|
|
|
|
ECORE_EXE_PIPE_ERROR
|
|
Exe Pipe error mask
|
|
|
|
ECORE_EXE_PIPE_READ_LINE_BUFFERED
|
|
Reads are buffered until a newline and delivered 1 event per line.
|
|
|
|
ECORE_EXE_PIPE_ERROR_LINE_BUFFERED
|
|
Errors are buffered until a newline and delivered 1 event per line.
|
|
|
|
ECORE_EXE_PIPE_AUTO
|
|
stdout and stderr are buffered automatically
|
|
|
|
ECORE_EXE_RESPAWN
|
|
Exe is restarted if it dies
|
|
|
|
ECORE_EXE_USE_SH
|
|
Use /bin/sh to run the command.
|
|
|
|
ECORE_EXE_NOT_LEADER
|
|
Do not use setsid() to have the executed process be its own
|
|
session leader
|
|
|
|
:type flags: int
|
|
:param data: extra data to be associated and available with ``data_get()``
|
|
|
|
"""
|
|
def __cinit__(self, *a, **ka):
|
|
self.exe = NULL
|
|
self.__data = None
|
|
self.__callbacks = {}
|
|
|
|
def __init__(self, exe_cmd, int flags=0, data=None):
|
|
if not exe_cmd:
|
|
raise ValueError("exe_cmd must not be empty!")
|
|
|
|
if flags is None:
|
|
flags = 0
|
|
|
|
if isinstance(exe_cmd, unicode): exe_cmd = PyUnicode_AsUTF8String(exe_cmd)
|
|
self._set_obj(exe_cmd, flags)
|
|
self.__data = data
|
|
self.__callbacks = {}
|
|
|
|
cdef int _set_obj(self, char *exe_cmd, int flags) except 0:
|
|
cdef Ecore_Exe *exe
|
|
|
|
assert self.exe == NULL, "Exe must be clean, not wrapping any Ecore_Exe"
|
|
|
|
exe = ecore_exe_pipe_run(exe_cmd, <Ecore_Exe_Flags>flags, <void *>self)
|
|
if exe == NULL:
|
|
raise SystemError("could not run subprocess %r, flags=%#x" %
|
|
(exe_cmd, flags))
|
|
|
|
Py_INCREF(self)
|
|
self.exe = exe
|
|
ecore_exe_callback_pre_free_set(exe, _ecore_exe_pre_free_cb)
|
|
_ecore_exe_event_mapping[<uintptr_t><void *>exe] = self
|
|
return 1
|
|
|
|
cdef int _unset_obj(self) except 0:
|
|
assert self.exe != NULL, "Exe must wrap something"
|
|
for t, filter in self.__callbacks.iteritems():
|
|
filter.delete()
|
|
self.__callbacks = None
|
|
|
|
_ecore_exe_event_mapping.pop(<uintptr_t><void *>self.exe)
|
|
self.exe = NULL
|
|
Py_DECREF(self)
|
|
return 1
|
|
|
|
def __repr__(self):
|
|
if self.exe == NULL:
|
|
pid = None
|
|
cmd = None
|
|
flags = ""
|
|
data = None
|
|
else:
|
|
pid = self.pid
|
|
cmd = self.cmd
|
|
flags = exe_flags2str(self.flags)
|
|
data = None
|
|
return ("<%s(%#x, Ecore_Exe=%#x, refcount=%d, pid=%s, cmd=%r, "
|
|
"flags=[%s], data=%r)>") % \
|
|
(self.__class__.__name__, <uintptr_t><void *>self,
|
|
<uintptr_t>self.exe, PY_REFCOUNT(self),
|
|
pid, cmd, flags, data)
|
|
|
|
def delete(self):
|
|
"""Forcefully frees the given process handle.
|
|
|
|
Note that the process that the handle represents is unaffected
|
|
by this function, this just stops monitoring the stdout/stderr
|
|
and emitting related events.
|
|
|
|
To finish the process call :py:meth:`terminate` or :py:meth:`kill`.
|
|
"""
|
|
if self.exe == NULL:
|
|
raise ValueError("%s already deleted" % self.__class__.__name__)
|
|
ecore_exe_free(self.exe)
|
|
|
|
def free(self):
|
|
"""Alias for :py:meth:`delete` to keep compatibility with C-api."""
|
|
self.delete()
|
|
|
|
def send(self, buf, long size=0):
|
|
"""Sends data to the executed process, which it receives on stdin.
|
|
|
|
This function writes to a child processes standard in, with
|
|
unlimited buffering. This call will never block. It may fail
|
|
if the system runs out of memory.
|
|
|
|
:param buffer: object that implements buffer interface, such
|
|
as strings (str).
|
|
:param size: if greater than zero, then this will limit the
|
|
size of given buffer. If None, then the exact buffer
|
|
size is used.
|
|
|
|
:raise ValueError: if size is larger than buffer size.
|
|
:return: success or failure.
|
|
:rtype: bool
|
|
"""
|
|
cdef:
|
|
Py_buffer buf_view
|
|
bint ret
|
|
|
|
if isinstance(buf, unicode):
|
|
buf = PyUnicode_AsUTF8String(buf)
|
|
|
|
PyObject_GetBuffer(buf, &buf_view, 0)
|
|
|
|
if size <= 0:
|
|
size = buf_view.len
|
|
elif size > buf_view.len:
|
|
raise ValueError(
|
|
"given size (%d) is larger than buffer size (%d)." %
|
|
(size, buf_view.len))
|
|
|
|
ret = ecore_exe_send(self.exe, <const void *>buf_view.buf, buf_view.len)
|
|
PyBuffer_Release(&buf_view)
|
|
return ret
|
|
|
|
def close_stdin(self):
|
|
"""Close executed process' stdin.
|
|
|
|
The stdin of the given child process will not be closed
|
|
immediately. Instead it will be closed when the write buffer
|
|
is empty.
|
|
"""
|
|
ecore_exe_close_stdin(self.exe)
|
|
|
|
def auto_limits_set(self, int start_bytes, int end_bytes,
|
|
int start_lines, int end_lines):
|
|
"""Sets the auto pipe limits for the given process handle
|
|
|
|
:param start_bytes: limit of bytes at start of output to buffer.
|
|
:param end_bytes: limit of bytes at end of output to buffer.
|
|
:param start_lines: limit of lines at start of output to buffer.
|
|
:param end_lines: limit of lines at end of output to buffer.
|
|
|
|
"""
|
|
ecore_exe_auto_limits_set(self.exe, start_bytes, end_bytes,
|
|
start_lines, end_lines)
|
|
|
|
# TODO:
|
|
#def event_data_get(self, int flags):
|
|
#Ecore_Exe_Event_Data *ecore_exe_event_data_get(Ecore_Exe *exe, Ecore_Exe_Flags flags)
|
|
#void ecore_exe_event_data_free(Ecore_Exe_Event_Data *data)
|
|
|
|
def cmd_get(self):
|
|
"""Retrieves the command of the executed process.
|
|
|
|
:return: the command line string if execution succeeded, None otherwise.
|
|
:rtype: str or None
|
|
|
|
"""
|
|
cdef const char *cmd = ecore_exe_cmd_get(self.exe)
|
|
if cmd != NULL:
|
|
return cmd
|
|
return None
|
|
|
|
property cmd:
|
|
def __get__(self):
|
|
return self.cmd_get()
|
|
|
|
def pid_get(self):
|
|
"""Retrieves the process ID of the executed process.
|
|
|
|
:rtype: int
|
|
|
|
"""
|
|
return ecore_exe_pid_get(self.exe)
|
|
|
|
property pid:
|
|
def __get__(self):
|
|
return self.pid_get()
|
|
|
|
def tag_set(self, char *tag):
|
|
"""Sets the string tag for the given process.
|
|
|
|
|
|
This is a string that is attached to this handle and may serve
|
|
as further information.
|
|
|
|
.. note:: not much useful in Python, but kept for compatibility
|
|
with C-api.
|
|
|
|
"""
|
|
cdef char *s
|
|
if tag is None:
|
|
s = NULL
|
|
else:
|
|
s = tag
|
|
ecore_exe_tag_set(self.exe, s)
|
|
|
|
def tag_get(self):
|
|
"""Retrieves the tag attached to the given process.
|
|
|
|
This is a string that is attached to this handle and may serve
|
|
as further information.
|
|
|
|
.. note:: not much useful in Python, but kept for compatibility
|
|
with C-api.
|
|
|
|
:rtype: str or None
|
|
|
|
"""
|
|
cdef const char *tag = ecore_exe_tag_get(self.exe)
|
|
if tag != NULL:
|
|
return tag
|
|
return None
|
|
|
|
property tag:
|
|
def __set__(self, char *tag):
|
|
self.tag_set(tag)
|
|
|
|
def __get__(self):
|
|
return self.tag_get()
|
|
|
|
def data_get(self):
|
|
return self.__data
|
|
|
|
property data:
|
|
def __get__(self):
|
|
return self.data_get()
|
|
|
|
def flags_get(self):
|
|
"""Retrieves the flags attached to the given process handle.
|
|
|
|
- ECORE_EXE_PIPE_READ: Exe Pipe Read mask
|
|
- ECORE_EXE_PIPE_WRITE: Exe Pipe Write mask
|
|
- ECORE_EXE_PIPE_ERROR: Exe Pipe error mask
|
|
- ECORE_EXE_PIPE_READ_LINE_BUFFERED: Reads are buffered until
|
|
a newline and delivered 1 event per line.
|
|
- ECORE_EXE_PIPE_ERROR_LINE_BUFFERED: Errors are buffered
|
|
until a newline and delivered 1 event per line
|
|
- ECORE_EXE_PIPE_AUTO: stdout and stderr are buffered automatically
|
|
- ECORE_EXE_RESPAWN: Exe is restarted if it dies
|
|
- ECORE_EXE_USE_SH: Use /bin/sh to run the command.
|
|
- ECORE_EXE_NOT_LEADER Do not use setsid() to have the
|
|
executed process be its own session leader
|
|
|
|
:return: set of masks, ORed.
|
|
|
|
"""
|
|
return ecore_exe_flags_get(self.exe)
|
|
|
|
property flags:
|
|
def __get__(self):
|
|
return self.flags_get()
|
|
|
|
def signal(self, int num):
|
|
"""Send SIGUSR1 or SIGUSR2 to executed process.
|
|
|
|
:parm num: user signal number, either 1 or 2.
|
|
|
|
:see: POSIX kill(2) and kill(1) man pages.
|
|
:raise ValueError: if num is not 1 or 2.
|
|
|
|
"""
|
|
if num != 1 or num != 2:
|
|
raise ValueError("num must be either 1 or 2. Got %d." % num)
|
|
ecore_exe_signal(self.exe, num)
|
|
|
|
def pause(self):
|
|
"""Send pause signal (SIGSTOP) to executed process.
|
|
|
|
In order to resume application execution, use :py:meth:`continue_`
|
|
"""
|
|
ecore_exe_pause(self.exe)
|
|
|
|
def stop(self):
|
|
"""Alias for ``pause``"""
|
|
self.pause()
|
|
|
|
def continue_(self):
|
|
"""Send continue signal (SIGCONT) to executed process.
|
|
|
|
This resumes application previously paused with :py:meth:`pause`
|
|
|
|
"""
|
|
ecore_exe_continue(self.exe)
|
|
|
|
def resume(self):
|
|
"""Alias for ``continue_()``"""
|
|
self.continue_()
|
|
|
|
def interrupt(self):
|
|
"""Send interrupt signal (SIGINT) to executed process.
|
|
|
|
.. note:: Python usually installs SIGINT handler to generate
|
|
*KeyboardInterrupt*, however Ecore will *override*
|
|
this handler with its own that generates
|
|
*ECORE_EVENT_SIGNAL_EXIT* in its main loop for the
|
|
application to handle. Pay attention to this detail if
|
|
your *child* process is also using Ecore.
|
|
"""
|
|
ecore_exe_interrupt(self.exe)
|
|
|
|
def quit(self):
|
|
"""Send quit signal (SIGQUIT) to executed process."""
|
|
ecore_exe_quit(self.exe)
|
|
|
|
def terminate(self):
|
|
"""Send terminate signal (SIGTERM) to executed process."""
|
|
ecore_exe_terminate(self.exe)
|
|
|
|
def kill(self):
|
|
"""Send kill signal (SIGKILL) to executed process.
|
|
|
|
This signal is fatal and will exit the application as it
|
|
cannot be blocked.
|
|
|
|
"""
|
|
ecore_exe_kill(self.exe)
|
|
|
|
def hup(self):
|
|
"""Send hup signal (SIGHUP) to executed process."""
|
|
ecore_exe_hup(self.exe)
|
|
|
|
def on_add_event_add(self, func, *args, **kargs):
|
|
"""Adds event listener to know when this Exe was actually started.
|
|
|
|
The given function will be called with the following signature
|
|
every time this Exe receives an ``ECORE_EXE_EVENT_ADD`` signal::
|
|
|
|
func(exe, event, *args, **kargs)
|
|
|
|
In contrast with on_exe_add_event_add(), this only receives
|
|
the events from this exact exe instance. The signature is also
|
|
very different, the first parameter is the ``Exe`` reference
|
|
and the return value does **not** removes the event listener!
|
|
|
|
:see: on_add_event_del()
|
|
:see: on_exe_add_event_add()
|
|
|
|
"""
|
|
filter = self.__callbacks.get(ECORE_EXE_EVENT_ADD)
|
|
if filter is None:
|
|
filter = ExeEventFilter(self, ECORE_EXE_EVENT_ADD)
|
|
self.__callbacks[ECORE_EXE_EVENT_ADD] = filter
|
|
filter.callback_add(func, args, kargs)
|
|
|
|
def on_add_event_del(self, func, *args, **kargs):
|
|
"""Removes the event listener registered with ``on_add_event_add()``.
|
|
|
|
Parameters must be exactly the same.
|
|
|
|
:raise ValueError: if parameters don't match an already
|
|
registered callback.
|
|
"""
|
|
filter = self.__callbacks.get(ECORE_EXE_EVENT_ADD)
|
|
if filter is None:
|
|
raise ValueError("callback not registered %s, args=%s, kargs=%s" %
|
|
(func, args, kargs))
|
|
filter.callback_del(func, args, kargs)
|
|
|
|
def on_del_event_add(self, func, *args, **kargs):
|
|
"""Adds event listener to know when this Exe was actually started.
|
|
|
|
The given function will be called with the following signature
|
|
every time this Exe receives an ``ECORE_EXE_EVENT_DEL`` signal::
|
|
|
|
func(exe, event, *args, **kargs)
|
|
|
|
In contrast with ``on_exe_del_event_add()``, this only receives
|
|
the events from this exact exe instance. The signature is also
|
|
very different, the first parameter is the ``Exe`` reference
|
|
and the return value does **not** removes the event listener!
|
|
|
|
:see: on_del_event_del()
|
|
:see: on_exe_del_event_add()
|
|
"""
|
|
filter = self.__callbacks.get(ECORE_EXE_EVENT_DEL)
|
|
if filter is None:
|
|
filter = ExeEventFilter(self, ECORE_EXE_EVENT_DEL)
|
|
self.__callbacks[ECORE_EXE_EVENT_DEL] = filter
|
|
filter.callback_add(func, args, kargs)
|
|
|
|
def on_del_event_del(self, func, *args, **kargs):
|
|
"""Removes the event listener registered with :py:func`on_del_event_add`.
|
|
|
|
Parameters must be exactly the same.
|
|
|
|
:raise ValueError: if parameters don't match an already
|
|
registered callback.
|
|
"""
|
|
filter = self.__callbacks.get(ECORE_EXE_EVENT_DEL)
|
|
if filter is None:
|
|
raise ValueError("callback not registered %s, args=%s, kargs=%s" %
|
|
(func, args, kargs))
|
|
filter.callback_del(func, args, kargs)
|
|
|
|
def on_data_event_add(self, func, *args, **kargs):
|
|
"""Adds event listener to know when this Exe was actually started.
|
|
|
|
The given function will be called with the following signature
|
|
every time this Exe receives an ``ECORE_EXE_EVENT_DATA`` signal::
|
|
|
|
func(exe, event, *args, **kargs)
|
|
|
|
In contrast with ``on_exe_data_event_add()``, this only receives
|
|
the events from this exact exe instance. The signature is also
|
|
very different, the first parameter is the ``Exe`` reference
|
|
and the return value does **not** removes the event listener!
|
|
|
|
:see: on_data_event_del()
|
|
:see: on_exe_data_event_add()
|
|
"""
|
|
filter = self.__callbacks.get(ECORE_EXE_EVENT_DATA)
|
|
if filter is None:
|
|
filter = ExeEventFilter(self, ECORE_EXE_EVENT_DATA)
|
|
self.__callbacks[ECORE_EXE_EVENT_DATA] = filter
|
|
filter.callback_add(func, args, kargs)
|
|
|
|
def on_data_event_del(self, func, *args, **kargs):
|
|
"""Removes the event listener registered with :py:func:`on_data_event_add()`.
|
|
|
|
Parameters must be exactly the same.
|
|
|
|
:raise ValueError: if parameters don't match an already
|
|
registered callback.
|
|
"""
|
|
filter = self.__callbacks.get(ECORE_EXE_EVENT_DATA)
|
|
if filter is None:
|
|
raise ValueError("callback not registered %s, args=%s, kargs=%s" %
|
|
(func, args, kargs))
|
|
filter.callback_del(func, args, kargs)
|
|
|
|
def on_error_event_add(self, func, *args, **kargs):
|
|
"""Adds event listener to know when this Exe was actually started.
|
|
|
|
The given function will be called with the following signature
|
|
every time this Exe receives an ``ECORE_EXE_EVENT_ERROR`` signal::
|
|
|
|
func(exe, event, *args, **kargs)
|
|
|
|
In contrast with ``on_exe_error_event_add()``, this only receives
|
|
the events from this exact exe instance. The signature is also
|
|
very different, the first parameter is the ``Exe`` reference
|
|
and the return value does **not** remove the event listener!
|
|
|
|
:see: on_error_event_del()
|
|
:see: on_exe_error_event_add()
|
|
"""
|
|
filter = self.__callbacks.get(ECORE_EXE_EVENT_ERROR)
|
|
if filter is None:
|
|
filter = ExeEventFilter(self, ECORE_EXE_EVENT_ERROR)
|
|
self.__callbacks[ECORE_EXE_EVENT_ERROR] = filter
|
|
filter.callback_add(func, args, kargs)
|
|
|
|
def on_error_event_del(self, func, *args, **kargs):
|
|
"""Removes the event listener registered with :py:func:`on_error_event_add()`.
|
|
|
|
Parameters must be exactly the same.
|
|
|
|
:raise ValueError: if parameters don't match an already
|
|
registered callback.
|
|
"""
|
|
filter = self.__callbacks.get(ECORE_EXE_EVENT_ERROR)
|
|
if filter is None:
|
|
raise ValueError("callback not registered %s, args=%s, kargs=%s" %
|
|
(func, args, kargs))
|
|
filter.callback_del(func, args, kargs)
|
|
|
|
|
|
def exe_run(exe_cmd, data=None):
|
|
"""`efl.ecore.Exe` factory, for C-api compatibility."""
|
|
return Exe(exe_cmd, data=data)
|
|
|
|
|
|
def exe_pipe_run(exe_cmd, int flags=0, data=None):
|
|
"""`efl.ecore.Exe` factory, for C-api compatibility."""
|
|
return Exe(exe_cmd, flags, data)
|
|
|
|
|
|
cdef class EventExeAdd(Event):
|
|
"""Represents Ecore_Exe_Event_Add event from C-api.
|
|
|
|
This event notifies the process created with :py:class:`Exe` was started.
|
|
|
|
See property ``exe`` for ``Exe`` instance.
|
|
"""
|
|
cdef int _set_obj(self, void *o) except 0:
|
|
cdef Ecore_Exe_Event_Add *obj
|
|
obj = <Ecore_Exe_Event_Add*>o
|
|
self.exe = _ecore_exe_event_mapping.get(<uintptr_t>obj.exe)
|
|
if self.exe is None:
|
|
return -1
|
|
return 1
|
|
|
|
def __repr__(self):
|
|
return "<%s(exe=%r)>" % (self.__class__.__name__, self.exe)
|
|
|
|
|
|
cdef class EventExeDel(Event):
|
|
"""Represents Ecore_Exe_Event_Del from C-api.
|
|
|
|
This event notifies the process created with ``Exe`` is now dead.
|
|
|
|
See property ``exe`` for ``Exe`` instance.
|
|
"""
|
|
cdef int _set_obj(self, void *o) except 0:
|
|
cdef Ecore_Exe_Event_Del *obj
|
|
obj = <Ecore_Exe_Event_Del*>o
|
|
self.exe = _ecore_exe_event_mapping.get(<uintptr_t>obj.exe)
|
|
if self.exe is None:
|
|
return -1
|
|
self.pid = obj.pid
|
|
self.exit_code = obj.exit_code
|
|
self.exit_signal = obj.exit_signal
|
|
self.exited = bool(obj.exited)
|
|
self.signalled = bool(obj.signalled)
|
|
return 1
|
|
|
|
def __repr__(self):
|
|
return ("<%s(pid=%s, exit_code=%s, exit_signal=%s, exited=%s, "
|
|
"signalled=%s, exe=%r)>") % \
|
|
(self.__class__.__name__, self.pid, self.exit_code,
|
|
self.exit_signal, self.exited, self.signalled, self.exe)
|
|
|
|
|
|
cdef class EventExeData(Event):
|
|
"""Represents Ecore_Exe_Event_Data from C-api.
|
|
|
|
This event is issued by :py:class:`Exe` instances created with flags that
|
|
allow reading from either stdout or stderr.
|
|
|
|
See properties:
|
|
|
|
- **exe** instance of :py:class:`Exe` that created this event.
|
|
- **data** the raw string buffer with binary data from child process.
|
|
- **size** the size of **data** (same as ``len(data)``)
|
|
- **lines** list of strings with all text lines
|
|
"""
|
|
cdef int _set_obj(self, void *o) except 0:
|
|
cdef Ecore_Exe_Event_Data *obj
|
|
cdef int i
|
|
obj = <Ecore_Exe_Event_Data*>o
|
|
self.exe = _ecore_exe_event_mapping.get(<uintptr_t>obj.exe)
|
|
if self.exe is None:
|
|
return -1
|
|
self.data = PyUnicode_FromStringAndSize(<char*>obj.data, obj.size)
|
|
self.size = obj.size
|
|
self.lines = []
|
|
|
|
line_append = self.lines.append
|
|
if obj.lines:
|
|
i = 0
|
|
while obj.lines[i].line != NULL:
|
|
line_append(PyUnicode_FromStringAndSize(
|
|
obj.lines[i].line, obj.lines[i].size))
|
|
i += 1
|
|
|
|
return 1
|
|
|
|
def __repr__(self):
|
|
if self.lines is None:
|
|
count = None
|
|
else:
|
|
count = len(self.lines)
|
|
return "<%s(size=%d, lines=#%d, exe=%r)>" % \
|
|
(self.__class__.__name__, self.size, count, self.exe)
|
|
|
|
|
|
cdef class EventHandlerExe(EventHandler):
|
|
"""Specialized event handler that creates specialized event instances.
|
|
|
|
This class is responsible by filtering out the events created from
|
|
C without associated Python wrappers.
|
|
"""
|
|
cdef Eina_Bool _exec(self, void *event) except 2:
|
|
cdef Event e
|
|
e = self.event_cls()
|
|
if e._set_obj(event) == -1: # no exe
|
|
return True
|
|
return bool(self.func(e, *self.args, **self.kargs))
|
|
|
|
|
|
def on_exe_add_event_add(func, *args, **kargs):
|
|
"""Create an ecore event handler for ECORE_EXE_EVENT_ADD
|
|
|
|
:see: EventHandler
|
|
:see: EventHandlerExe
|
|
"""
|
|
return EventHandlerExe(ECORE_EXE_EVENT_ADD, func, *args, **kargs)
|
|
|
|
|
|
def on_exe_del_event_add(func, *args, **kargs):
|
|
"""Create an ecore event handler for ECORE_EXE_EVENT_DEL
|
|
|
|
:see: EventHandler
|
|
:see: EventHandlerExe
|
|
"""
|
|
return EventHandlerExe(ECORE_EXE_EVENT_DEL, func, *args, **kargs)
|
|
|
|
|
|
def on_exe_data_event_add(func, *args, **kargs):
|
|
"""Create an ecore event handler for ECORE_EXE_EVENT_DATA
|
|
|
|
:see: EventHandler
|
|
:see: EventHandlerExe
|
|
"""
|
|
return EventHandlerExe(ECORE_EXE_EVENT_DATA, func, *args, **kargs)
|
|
|
|
|
|
def on_exe_error_event_add(func, *args, **kargs):
|
|
"""Create an ecore event handler for ECORE_EXE_EVENT_ERROR
|
|
|
|
:see: :py:class:`EventHandler`
|
|
:see: :py:class:`EventHandlerExe`
|
|
"""
|
|
return EventHandlerExe(ECORE_EXE_EVENT_ERROR, func, *args, **kargs)
|