twisted.internet._signals.installHandler(fd) function documentationtwisted.internet._signals
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Install a signal handler which will write a byte to fd when SIGCHLD is received.
This is implemented by installing a SIGCHLD handler that does nothing, setting the SIGCHLD handler as not allowed to interrupt system calls, and using signal.set_wakeup_fd to do the actual writing.
| Parameters | fd | The file descriptor to which to write when SIGCHLD is received. (type: int) |
| Function | noopSignalHandler | Undocumented |