Nils O. Selåsdal
23 lines
977 B
C
23 lines
977 B
C
#ifndef UCORE_SUPERVISOR_H_
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#define UCORE_SUPERVISOR_H_
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/** Supervises this process - restart if it dies.
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*
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* The program should call supervise() at a pristine state (all relevant file descriptors closed, etc).
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* supervise() will return 0 if all is ok, and the program can continue.(returning != 0 means
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* the supervisor couldn't start, and the calling process must exit)
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*
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* This will run the actual process as a child process. If that child process dies by any means,
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* supervise will create another child process, where supervise() returns 0 again.
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*
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* To kill the supervisor process and the supervised process, send SIGERM/SIGHUP/SIGINT to the
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* parent supervisor process.
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* Sending SIGUSR1 to the parent supervisor process will terminate the current child process and
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* restart it.
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*
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* The supervised child process must exit if it recieves a SIGTERM
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* @return 0 on success, non-zero on failure (e.g. fork() fails)*/
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int uc_supervise(void);
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#endif
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