DOHOOKS(9) BSD Kernel Manual DOHOOKS(9)NAMEdohooks - run all hooks in a list
SYNOPSIS
#include <sys/types.h>
#include <sys/systm.h>
void
dohooks(struct hook_desc_head *head, int flags);
DESCRIPTION
The dohooks() function invokes all hooks established using the
hook_establish(9) function. Hooks are called in the order of the TAILQ
that head points to, however hook_establish(9) can put the hooks either
at the head or the tail of that queue, making it possible to call the
hooks either in the order of establishment, or its reverse.
The flags can specify HOOK_REMOVE to remove already processed hooks from
the hook list and HOOK_FREE to also free them. In most cases either no
flags should be used or HOOK_REMOVE and HOOK_FREE at the same time, since
just HOOK_REMOVE will drop the only reference to allocated memory and
should only be used in situations where freeing memory would be illegal
and unnecessary.
This function is used to implement the doshutdownhooks(9) as well as the
dostartuphooks(9) macros.
SEE ALSOdoshutdownhooks(9), dostartuphooks(9), hook_establish(9)MirOS BSD #10-current July 27, 2001 1