beremiz

Attempt (disabled) to systematically attach a cobalt shadow thread to python threads.
svghmi
2019-12-09, Edouard Tisserant
7825a76f5ffb
Parents 55ed9df633d4
Children 8cc70f7f525a
Attempt (disabled) to systematically attach a cobalt shadow thread to python threads.
When experimenting with pthread_cond, didn't see any enhancement.
1 files changed, 19 insertions(+), 1 deletions(-)
  • +19 -1
    runtime/xenomai.py
    • --- a/runtime/xenomai.py Fri Dec 06 11:45:03 2019 +0100
    +++ b/runtime/xenomai.py Mon Dec 09 09:42:07 2019 +0100
    @@ -7,6 +7,22 @@
    from __future__ import absolute_import
    from ctypes import CDLL, RTLD_GLOBAL, pointer, c_int, POINTER, c_char, create_string_buffer
    +import threading
    +
    +def installThreadCobaltHook():
    + init_old = threading.Thread.__init__
    +
    + def init(self, *args, **kwargs):
    + init_old(self, *args, **kwargs)
    + run_old = self.run
    +
    + def run_with_shadow(*args, **kw):
    + print("hello from thread"+repr(self))
    + cobalt.cobalt_thread_harden()
    + run_old(*args, **kw)
    + self.run = run_with_shadow
    + threading.Thread.__init__ = init
    +
    def TryPreloadXenomai():
    """
    @@ -22,4 +38,6 @@
    globals()[name] = CDLL("lib"+name+".so", mode=RTLD_GLOBAL)
    cobalt.xenomai_init(pointer(c_int(0)), pointer((POINTER(c_char)*2)(create_string_buffer("prog_name"), None)))
    except Exception:
    - pass
    + return
    +
    + # installThreadCobaltHook()