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NAMEexplain_getpgid_or_die - get process group and report errors SYNOPSIS#include <libexplain/getpgid.h> pid_t explain_getpgid_or_die(pid_t pid);
DESCRIPTIONThe explain_getpgid_or_die function is used to call the getpgid(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_getpgid(3) function, and then the process terminates by calling exit(EXIT_FAILURE). The explain_getpgid_on_error function is used to call the getpgid(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_getpgid(3) function, but still returns to the caller.
RETURN VALUEThe explain_getpgid_or_die function only returns on success, see getpgid(2) for more information. On failure, prints an explanation and exits, it does not return. The explain_getpgid_on_error function always returns the value return by the wrapped getpgid(2) system call. EXAMPLEThe explain_getpgid_or_die function is intended to be used in a fashion similar to the following example: pid_t result = explain_getpgid_or_die(pid); SEE ALSO
COPYRIGHTlibexplain version 1.3
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