explain_setsid_or_die(3) Library Functions Manual explain_setsid_or_die(3) NAME explain_setsid_or_die - sets process group ID and report errors SYNOPSIS #include <libexplain/setsid.h> pid_t explain_setsid_or_die(void); pid_t explain_setsid_on_error(void); DESCRIPTION The explain_setsid_or_die function is used to call the setsid(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_setsid(3) function, and then the process terminates by calling exit(EXIT_FAILURE). The explain_setsid_on_error function is used to call the setsid(2) system call. On failure an explanation will be printed to stderr, obtained from the explain_setsid(3) function, but still returns to the caller. RETURN VALUE The explain_setsid_or_die function only returns on success, see setsid(2) for more information. On failure, prints an explanation and exits, it does not return. The explain_setsid_on_error function always returns the value return by the wrapped setsid(2) system call. EXAMPLE The explain_setsid_or_die function is intended to be used in a fashion sim- ilar to the following example: explain_setsid_or_die(); SEE ALSO setsid(2) creates a session and sets the process group ID explain_setsid(3) explain setsid(2) errors exit(2) terminate the calling process COPYRIGHT libexplain version 1.3 Copyright (C) 2011 Peter Miller explain_setsid_or_die(3)
NAME | SYNOPSIS | DESCRIPTION | RETURN VALUE | EXAMPLE | SEE ALSO | COPYRIGHT
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