filter_wait(3) util/filter.h filter_wait(3)NAME
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
ClearSilver 12 July 2007 filter_wait(3)
Check Out this Related Man Page
explain_waitpid_or_die(3) Library Functions Manual explain_waitpid_or_die(3)NAME
explain_waitpid_or_die - wait for process to change state and report errors
SYNOPSIS
#include <libexplain/waitpid.h>
int pid = explain_waitpid_or_die(int pid, int *status, int options);
DESCRIPTION
The explain_waitpid_or_die function is used to call the waitpid(2) system call. On failure an explanation will be printed to stderr,
obtained from explain_waitpid(3), and then the process terminates by calling exit(EXIT_FAILURE).
This function is intended to be used in a fashion similar to the following example:
explain_waitpid_or_die(pid, status, options);
pid The pid, exactly as to be passed to the waitpid(2) system call.
status The status, exactly as to be passed to the waitpid(2) system call.
options The options, exactly as to be passed to the waitpid(2) system call.
Returns:
This function only returns on success. On failure, prints an explanation and exits.
SEE ALSO waitpid(2)
wait for process to change state
explain_waitpid(3)
explain waitpid(2) errors
exit(2) terminate the calling process
COPYRIGHT
libexplain version 0.52
Copyright (C) 2008 Peter Miller
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