runtime/xenomai.py
author Edouard Tisserant
Tue, 10 Jul 2018 12:54:05 +0200
branchnevow_service_rework
changeset 2220 985f234b0d09
parent 2000 9fa2f8ede5d6
child 2015 4eeefc6a13fd
permissions -rw-r--r--
Moved Wamp configuration file selection logic into runtime/wampclient.py. Added Wamp CRA secret file upload and download. Slightly reworked code for config and secret file loading and saving.
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from ctypes import CDLL, RTLD_GLOBAL, pointer, c_int, POINTER, c_char, create_string_buffer
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def TryPreloadXenomai():
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    """
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    Xenomai 3 (at least for version <= 3.0.6) do not handle properly dlclose
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    of shared objects whose dlopen did trigger xenomai_init.
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    As a workaround, this pre-loads xenomai libraries that need to be 
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    initialized and call xenomai_init once for all.
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    Xenomai auto init of libs MUST be disabled (see --auto-init-solib in xeno-config)
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    """
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    try:
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        for name in ["cobalt", "modechk", "copperplate", "alchemy"]:
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            globals()[name] = CDLL("lib"+name+".so", mode=RTLD_GLOBAL)
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        cobalt.xenomai_init(pointer(c_int(0)), pointer((POINTER(c_char)*2)(create_string_buffer("prog_name"), None)))  
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    except:
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        pass