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vsig - synchronize a co-process with the controlling FMLI application
vsig
The vsig executable sends a SIGUSR2 signal to the controlling FMLI process. This signal/alarm causes FMLI to execute the FMLI built-in command checkworld which causes all posted objects with a reread descriptor evaluating to TRUE to be reread. vsig takes no arguments.
Example 1 A sample output of vsig command.
The following is a segment of a shell program:
echo "Sending this string to an FMLI process" vsig
The vsig executable will flush the output buffer before it sends the SIGUSR2 signal to make sure the string is actually in the pipe created by the cocreate function.
See attributes(5) for descriptions of the following attributes:
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coproc(1F), kill(1), kill(2), signal(3C), attributes(5)
Because vsig synchronize with FMLI, it should be used rather than kill to send a SIGUSR2 signal to FMLI.
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Created 1996-2024 by Maxim Chirkov Добавить, Поддержать, Вебмастеру |