filter_wait – wrap waitpid to decode the exitcode and why your filter quit
Synopsis
#include <util/filter.h>
NEOERR *filter_wait(pid_t pid, int options, int *exitcode);
Arguments
pid -> the process identifier to wait for
options -> the options to pass to waitpid (see
wait(2))
Description
filter_wait wraps the waitpid call and raises an error (with description) if the call failed. Note that if the ask for the exitcode and the process exited with a code other than zero, we don’t raise an error. If you don’t ask for the exitcode, and it is non-zero, we raise an error
Return Value
exitcode -> the exitcode if the process existed normally
See Also
filter_wait(3),
filter_create_fp(3), filter_create_fd
