sys/dev/tprof/tprof_ioctl.h

   1 /*      $NetBSD$        */
   2
   3 /*-
   4  * Copyright (c)2008 YAMAMOTO Takashi,
   5  * All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #ifndef _DEV_TPROF_TPROF_IOCTL_H_
  30 #define _DEV_TPROF_TPROF_IOCTL_H_
  31
  32 #include <sys/ioccom.h>
  33
  34 #define TPROF_VERSION   1
  35
  36 #define TPROF_IOC_GETVERSION    _IOR('T', 1, int)
  37
  38 struct tprof_param {
  39         int dummy;
  40 };
  41 #define TPROF_IOC_START         _IOW('T', 2, struct tprof_param)
  42
  43 #define TPROF_IOC_STOP          _IO('T', 3)
  44
  45 struct tprof_stat {
  46         uint64_t ts_sample;     /* samples successfully recorded */
  47         uint64_t ts_overflow;   /* samples dropped due to overflow */
  48         uint64_t ts_buf;        /* buffers successfully queued for read(2) */
  49         uint64_t ts_emptybuf;   /* empty buffers dropped */
  50         uint64_t ts_dropbuf;    /* buffers dropped due to the global limit */
  51         uint64_t ts_dropbuf_sample; /* samples dropped with ts_dropbuf */
  52 };
  53 #define TPROF_IOC_GETSTAT       _IOR('T', 4, struct tprof_stat)
  54
  55 #endif /* _DEV_TPROF_TPROF_IOCTL_H_ */