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();
SEE ALSO¶
- vfork(2)
- create a child process and block parent
- explain_vfork(3)
- explain vfork(2) errors
- exit(2)
- terminate the calling process
COPYRIGHT¶
libexplain version 0.52
Copyright (C) 2009 Peter Miller
