gdnative_python/pythonscript/_pandemonium_io.pxi

130 lines
3.6 KiB
Cython

import sys
import builtins
import traceback
from io import TextIOBase
from threading import Lock
from pandemoniummonium._hazmat.conversion cimport (
pandemonium_string_to_pyobj,
pyobj_to_pandemonium_string,
pandemonium_variant_to_pyobj,
)
from pandemoniummonium._hazmat.gdnative_api_struct cimport (
pandemonium_string,
pandemonium_string_name,
pandemonium_bool,
pandemonium_array,
pandemonium_pool_string_array,
pandemonium_object,
pandemonium_variant,
pandemonium_variant_call_error,
pandemonium_method_rpc_mode,
pandemonium_pluginscript_script_data,
pandemonium_pluginscript_instance_data,
pandemonium_variant_call_error_error,
pandemonium_variant_type
)
cpdef inline void pandemonium_print(str pystr):
cdef pandemonium_string gdstr
pyobj_to_pandemonium_string(pystr, &gdstr)
with nogil:
gdapi10.pandemonium_print(&gdstr)
gdapi10.pandemonium_string_destroy(&gdstr)
class StdinCapture(TextIOBase):
def __init__(self):
self._enabled = False
self._old_stdin = None
def install(self):
if self._enabled:
raise RuntimeError("Already enabled !")
self._old_stdin = sys.stdin
sys.stdin = self
self._enabled = True
def remove(self):
if not self._enabled:
raise RuntimeError("Not enabled !")
sys.stdin = self._old_stdin
self._enabled = False
class StdoutStderrCapture(TextIOBase):
def __init__(self):
self._enabled = False
self._old_stdout = None
self._old_stderr = None
def install(self):
if self._enabled:
raise RuntimeError("Already enabled !")
self._old_stderr = sys.stderr
sys.stderr = self
self._old_stdout = sys.stdout
sys.stdout = self
self._enabled = True
# Don't forget to flush the original streams if any (for instance Windows
# GUI app without console have sys.__stdout__/__stderr__ set to None)
if self._old_stdout is not None:
self._old_stdout.flush()
if self._old_stdout is not None:
self._old_stdout.flush()
def remove(self):
if not self._enabled:
raise RuntimeError("Not enabled !")
# # Sanity check, we shouldn't be mixing
# if sys.stderr is not self._stderr or sys.stdout is not self._stdout:
# raise RuntimeError("sys.stderr/stdout has been patched in our back !")
sys.stderr = self._old_stderr
sys.stdout = self._old_stdout
self._enabled = False
class StdoutStderrCaptureToPandemonium(StdoutStderrCapture):
def __init__(self):
self.buffer = ""
self.callbacks = {}
self._enabled = False
self._old_stdout = None
self._old_stderr = None
self._lock = Lock()
def write(self, b):
with self._lock:
self.buffer += b
if "\n" in self.buffer:
to_print, self.buffer = self.buffer.rsplit("\n", 1)
self._write(to_print)
def flush(self):
with self._lock:
if self.buffer:
self._write(self.buffer)
self.buffer = ""
def _write(self, buff):
cdef pandemonium_string gdstr
pyobj_to_pandemonium_string(buff, &gdstr)
with nogil:
gdapi10.pandemonium_print(&gdstr)
gdapi10.pandemonium_string_destroy(&gdstr)
cdef _capture_io_streams = None
cdef install_io_streams_capture():
global _capture_io_streams
assert _capture_io_streams is None
_capture_io_streams = StdoutStderrCaptureToPandemonium()
_capture_io_streams.install()