/* * tostr.h - DTrace To-String include file. * * $Id: tostr.h,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $ * * COPYRIGHT: Copyright (c) 2007 Brendan Gregg. * * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at Docs/cddl1.txt * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * CDDL HEADER END * * 16-Sep-2007 Brendan Gregg Created this. */ /* * NUM_TO_STR(n) - takes a number and returns a string with a prefix, * intended to fit withen 6 chars. * * Input Output * 0 0 * 1 1 * 10 10 * 999 999 * 1000 1.0K * 1100 1.1K * 10000 10.0K * 999999 999.0K * 1000000 1.0M * 10000000 10.0M * 999999999 999.9M */ #define NUM_TO_STR(n) \ n >= 1000000 ? \ strjoin(strjoin(strjoin(lltostr(n / 1000000), "."), \ lltostr((n % 1000000) / 100000)), "M") : n >= 1000 ? \ strjoin(strjoin(strjoin(lltostr(n / 1000), "."), \ lltostr((n % 1000) / 100)), "K") : lltostr(n) /* * BYTES_TO_STR(n) - takes a byte count and returns a string with a prefix, * intended to fit withen 6 chars. * * Input Output * 0 0 * 1 1 * 10 10 * 999 0.9K * 1000 0.9K * 1024 1.0K * 10240 10.0K * 1000000 976.5K * 1048576 1.0M * 1000000000 953.6M */ #define BYTES_TO_STR(n) \ n >= 1024000 ? \ strjoin(strjoin(strjoin(lltostr(n / 1048576), "."), \ lltostr((n % 1048576) / 104858)), "M") : n >= 1000 ? \ strjoin(strjoin(strjoin(lltostr(n / 1024), "."), \ lltostr((n % 1024) / 103)), "K") : lltostr(n) /* * US_TO_STR(n) - takes microseconds and returns a string with a prefix, * intended to fit withen 6 chars. * * Input Output * 0 0 * 1 1u * 10 10u * 999 999u * 1000 1.0m * 1100 1.1m * 10000 10.0m * 999999 999.0m */ #define US_TO_STR(n) \ n == 0 ? "0" : n >= 1000 ? \ strjoin(lltostr(n / 1000), "m") : strjoin(lltostr(n), "u")