1 /*- 2 * Copyright (c) 2013-2014 Devin Teske <dteske@FreeBSD.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27 #ifndef _DPV_UTIL_H_ 28 #define _DPV_UTIL_H_ 29 30 /* Limits */ 31 #define BUFSIZE_MAX (2 * 1024 * 1024) 32 /* Buffer size for read(2) input */ 33 #ifndef MAXPHYS 34 #define MAXPHYS (128 * 1024) 35 /* max raw I/O transfer size */ 36 #endif 37 38 /* 39 * Memory strategry threshold, in pages: if physmem is larger than this, 40 * use a large buffer. 41 */ 42 #define PHYSPAGES_THRESHOLD (32 * 1024) 43 44 /* 45 * Small (default) buffer size in bytes. It's inefficient for this to be 46 * smaller than MAXPHYS. 47 */ 48 #define BUFSIZE_SMALL (MAXPHYS) 49 50 /* 51 * Math macros 52 */ 53 #undef MIN 54 #define MIN(x,y) ((x) < (y) ? (x) : (y)) 55 #undef MAX 56 #define MAX(x,y) ((x) > (y) ? (x) : (y)) 57 58 /* 59 * Extra display information 60 */ 61 #define BYTE_STATUS_SOLO "%'10lli bytes read @ %'9.1f bytes/sec." 62 #define BYTE_STATUS_MANY (BYTE_STATUS_SOLO " [%i/%i busy/wait]") 63 #define LINE_STATUS_SOLO "%'10lli lines read @ %'9.1f lines/sec." 64 #define LINE_STATUS_MANY (LINE_STATUS_SOLO " [%i/%i busy/wait]") 65 66 #endif /* !_DPV_UTIL_H_ */ 67