How to use on_fork method in autotest

Best Python code snippet using autotest_python Github


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...112 handle_child_crash()113 def _child_main(self, childfp):114 reset_logging_framework() # Must be first!115 fixup_prngs()116 mitogen.core.Latch._on_fork()117 mitogen.core.Side._on_fork()118 if self.on_fork:119 self.on_fork()120 mitogen.core.set_block(childfp.fileno())121 # Expected by the ExternalContext.main().122 os.dup2(childfp.fileno(), 1)123 os.dup2(childfp.fileno(), 100)124 # Overwritten by ExternalContext.main(); we must replace the125 # parent-inherited descriptors that were closed by Side._on_fork() to126 # avoid ExternalContext.main() accidentally allocating new files over127 # the standard handles.128 os.dup2(childfp.fileno(), 0)129 # Avoid corrupting the stream on fork crash by dupping /dev/null over130 # stderr. Instead, handle_child_crash() uses /dev/tty to log errors.131 devnull ='/dev/null', os.O_WRONLY)132 if devnull != 2:133 os.dup2(devnull, 2)134 os.close(devnull)135 # If we're unlucky, childfp.fileno() may coincidentally be one of our136 # desired FDs. In that case closing it breaks ExternalContext.main().137 if childfp.fileno() not in (0, 1, 100):138 childfp.close()139 config = self.get_econtext_config()...

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