diff options
| author |   mpi <mpi@openbsd.org> | 2020-10-11 07:11:59 +0000 |
|---|---|---|
| committer | mpi <mpi@openbsd.org> | 2020-10-11 07:11:59 +0000 |
| commit | 0688167753d93f2cd2ffef9e76c8ed27cabd5b85 (patch) | |
| tree | 08b75bfff92fd7d2ecc747cbb6aed228d50713ad /sys/sys/event.h | |
| parent | Stop exporting `wt_hwqueue' now that drivers don't advertise it. (diff) | |
| download | wireguard-openbsd-0688167753d93f2cd2ffef9e76c8ed27cabd5b85.tar.xz wireguard-openbsd-0688167753d93f2cd2ffef9e76c8ed27cabd5b85.zip | |
Refactor kqueue_scan() to use a context: a "kqueue_scan_state struct".
The struct keeps track of the end point of an event queue scan by
persisting the end marker. This will be needed when kqueue_scan() is
called repeatedly to complete a scan in a piecewise fashion.
Extracted from a previous diff from visa@.
ok visa@, anton@
Diffstat (limited to 'sys/sys/event.h')
| -rw-r--r-- | sys/sys/event.h | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/sys/sys/event.h b/sys/sys/event.h index fefbfccad11..a9ecbe6cf78 100644 --- a/sys/sys/event.h +++ b/sys/sys/event.h @@ -1,4 +1,4 @@ -/* $OpenBSD: event.h,v 1.45 2020/08/23 07:05:29 mpi Exp $ */ +/* $OpenBSD: event.h,v 1.46 2020/10/11 07:11:59 mpi Exp $ */ /*- * Copyright (c) 1999,2000,2001 Jonathan Lemon <jlemon@FreeBSD.org> @@ -200,7 +200,14 @@ struct knote { #define kn_fp kn_ptr.p_fp }; +struct kqueue_scan_state { + struct kqueue *kqs_kq; /* kqueue of this scan */ + struct knote kqs_start; /* start marker */ + struct knote kqs_end; /* end marker */ +}; + struct proc; +struct timespec; extern const struct filterops sig_filtops; extern const struct filterops dead_filtops; @@ -212,6 +219,10 @@ extern void knote_fdclose(struct proc *p, int fd); extern void knote_processexit(struct proc *); extern int kqueue_register(struct kqueue *kq, struct kevent *kev, struct proc *p); +extern int kqueue_scan(struct kqueue_scan_state *, int, struct kevent *, + struct timespec *, struct kevent *, struct proc *, int *); +extern void kqueue_scan_setup(struct kqueue_scan_state *, struct kqueue *); +extern void kqueue_scan_finish(struct kqueue_scan_state *); extern int filt_seltrue(struct knote *kn, long hint); extern int seltrue_kqfilter(dev_t, struct knote *); extern void klist_insert(struct klist *, struct knote *); |