Man page - explain_vfork_or_die(3)

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Package: libexplain-dev
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Manual

explain_vfork_or_die

NAME
SYNOPSIS
DESCRIPTION
RETURN VALUE
EXAMPLE
SEE ALSO
COPYRIGHT

NAME

explain_vfork_or_die - create a child process and report errors

SYNOPSIS

#include <libexplain/vfork.h>
pid_t explain_vfork_or_die(void);
pid_t explain_vfork_on_error(void);

DESCRIPTION

The explain_vfork_or_die function is used to call the vfork (2) system call. On failure an explanation will be printed to stderr , obtained from the explain_vfork (3) function, and then the process terminates by calling exit(EXIT_FAILURE).

The explain_vfork_on_error function is used to call the vfork (2) system call. On failure an explanation will be printed to stderr , obtained from the explain_vfork (3) function, but still returns to the caller.

RETURN VALUE

The explain_vfork_or_die function only returns on success, see vfork (2) for more information. On failure, prints an explanation and exits, it does not return.

The explain_vfork_on_error function always returns the value return by the wrapped vfork (2) system call.

EXAMPLE

The explain_vfork_or_die function is intended to be used in a fashion similar to the following example:

pid_t result = explain_vfork_or_die();