diff options
Diffstat (limited to 'usr.bin/dpv/dpv_util.h')
-rw-r--r-- | usr.bin/dpv/dpv_util.h | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/usr.bin/dpv/dpv_util.h b/usr.bin/dpv/dpv_util.h new file mode 100644 index 0000000..36990be --- /dev/null +++ b/usr.bin/dpv/dpv_util.h @@ -0,0 +1,68 @@ +/*- + * Copyright (c) 2013-2014 Devin Teske <dteske@FreeBSD.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. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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. + * + * $FreeBSD$ + */ + +#ifndef _DPV_UTIL_H_ +#define _DPV_UTIL_H_ + +/* Limits */ +#define BUFSIZE_MAX (2 * 1024 * 1024) + /* Buffer size for read(2) input */ +#ifndef MAXPHYS +#define MAXPHYS (128 * 1024) + /* max raw I/O transfer size */ +#endif + +/* + * Memory strategry threshold, in pages: if physmem is larger than this, + * use a large buffer. + */ +#define PHYSPAGES_THRESHOLD (32 * 1024) + +/* + * Small (default) buffer size in bytes. It's inefficient for this to be + * smaller than MAXPHYS. + */ +#define BUFSIZE_SMALL (MAXPHYS) + +/* + * Math macros + */ +#undef MIN +#define MIN(x,y) ((x) < (y) ? (x) : (y)) +#undef MAX +#define MAX(x,y) ((x) > (y) ? (x) : (y)) + +/* + * Extra display information + */ +#define BYTE_STATUS_SOLO "%'10lli bytes read @ %'9.1f bytes/sec." +#define BYTE_STATUS_MANY (BYTE_STATUS_SOLO " [%i/%i busy/wait]") +#define LINE_STATUS_SOLO "%'10lli lines read @ %'9.1f lines/sec." +#define LINE_STATUS_MANY (LINE_STATUS_SOLO " [%i/%i busy/wait]") + +#endif /* !_DPV_UTIL_H_ */ |