diff options
Diffstat (limited to 'sys/sys/evcount.h')
| -rw-r--r-- | sys/sys/evcount.h | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/sys/sys/evcount.h b/sys/sys/evcount.h new file mode 100644 index 0000000..9124e94 --- /dev/null +++ b/sys/sys/evcount.h @@ -0,0 +1,50 @@ +/* $OpenBSD: evcount.h,v 1.3 2010/09/20 06:33:46 matthew Exp $ */ +/* + * Copyright (c) 2004 Artur Grabowski <art@openbsd.org> + * Copyright (c) 2004 Aaron Campbell <aaron@openbsd.org> + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, + * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY + * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL + * THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, + * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, + * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; + * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, + * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR + * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF + * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#ifndef __SYS_EVCOUNT_H__ +#define __SYS_EVCOUNT_H__ + +#ifdef _KERNEL + +#include <sys/queue.h> + +struct evcount { + u_int64_t ec_count; /* main counter */ + int ec_id; /* counter ID */ + const char *ec_name; /* counter name */ + void *ec_data; /* user data */ + + TAILQ_ENTRY(evcount) next; +}; + +void evcount_attach(struct evcount *, const char *, void *); +void evcount_detach(struct evcount *); +int evcount_sysctl(int *, u_int, void *, size_t *, void *, size_t); + +#endif /* _KERNEL */ + +#endif |