Module pythonChildHandler
source code
This module defines 2 tightly-coupled classes; PyCmdDispatcher and
PyCmdExecutor, along with 3 other classes used as FIFO's, PfxUnixFIFO and
PfxNamedPipeFIFO, which derive from PfxFIFO.
They are used to spawn a python child process and send commands to
that process. The PyCmdDispatcher instance is the parent and dispatches
commands to the child, which has a PyCmdExecutor instance.
Commands are dispatched over the child's stdin.
The success or failure of the PyCmdExecutor's ability to execute the
command is communicated back to the PyCmdDispatcher over a FIFO-like
object, which is an PfxFIFO instance.
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PyCmdDispatcher
The PyCmdDispatcher class is used by qube python jobtypes to
execute commands through an abstracted application or shell.
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PyCmdExecutor
The PyCmdExecutor class is used by qube loadOnce python jobtypes.
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PFXRequestHandler
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PFXSimpleSocketServer
Listens for output from PFXSimpleClient on the same host, usually
running in another python interpreter inside a 3rd-party
application such as Maya.
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PFXSimpleClient
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buffer_lock = threading.Lock()
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thisDir = getThisModulePath() [1]
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childBootStrapper = os.path.join(thisDir, 'child_bootstrapper....
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pyCmdLine = '%s -u "%s" --port __PORT__' %(sys.executable, os....
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childArgs = ['/bin/tcsh', '-c', pyCmdLine]
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cd = PyCmdDispatcher(childArgs, debug= False)
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exit_code = cd.close()
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__package__ = 'qb.backend' |
childBootStrapper
- Value:
os.path.join(thisDir, 'child_bootstrapper.py')
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pyCmdLine
- Value:
'%s -u "%s" --port __PORT__' %(sys.executable, os.path.normpath(childB
ootStrapper))
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