SIMPLE SOLUTIONS

EXPLAIN_WAIT4_OR_DIE - reference manual online

Wait for process to change state and report errors.

Chapter
explain_wait4_or_die(3)              Library Functions Manual             explain_wait4_or_die(3)

NAME explain_wait4_or_die - wait for process to change state and report errors
SYNOPSIS #include <libexplain/wait4.h> void explain_wait4_or_die(int pid, int *status, int options, struct rusage *rusage);
DESCRIPTION The explain_wait4_or_die function is used to call the wait4(2) system call. On failure an explanation will be printed to stderr, obtained from explain_wait4(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_wait4_or_die(pid, status, options, rusage); pid The pid, exactly as to be passed to the wait4(2) system call. status The status, exactly as to be passed to the wait4(2) system call. options The options, exactly as to be passed to the wait4(2) system call. rusage The rusage, exactly as to be passed to the wait4(2) system call. Returns: This function only returns on success, see wait4(2) for more information. On failure, prints an explanation and exits.
SEE ALSO wait4(2) wait for process to change state explain_wait4(3) explain wait4(2) errors exit(2) terminate the calling process
explain_wait4_or_die(3)
This manual Reference Other manuals
explain_wait4_or_die(3) referred by explain(3) | explain_wait4(3)
refer to _exit(2) | explain_wait4(3) | wait4(2)