1 /* 2 * tostr.h - DTrace To-String include file. 3 * 4 * $Id: tostr.h,v 1.1.1.1 2015/09/30 22:01:09 christos Exp $ 5 * 6 * COPYRIGHT: Copyright (c) 2007 Brendan Gregg. 7 * 8 * CDDL HEADER START 9 * 10 * The contents of this file are subject to the terms of the 11 * Common Development and Distribution License, Version 1.0 only 12 * (the "License"). You may not use this file except in compliance 13 * with the License. 14 * 15 * You can obtain a copy of the license at Docs/cddl1.txt 16 * or http://www.opensolaris.org/os/licensing. 17 * See the License for the specific language governing permissions 18 * and limitations under the License. 19 * 20 * CDDL HEADER END 21 * 22 * 16-Sep-2007 Brendan Gregg Created this. 23 */ 24 25 /* 26 * NUM_TO_STR(n) - takes a number and returns a string with a prefix, 27 * intended to fit withen 6 chars. 28 * 29 * Input Output 30 * 0 0 31 * 1 1 32 * 10 10 33 * 999 999 34 * 1000 1.0K 35 * 1100 1.1K 36 * 10000 10.0K 37 * 999999 999.0K 38 * 1000000 1.0M 39 * 10000000 10.0M 40 * 999999999 999.9M 41 */ 42 #define NUM_TO_STR(n) \ 43 n >= 1000000 ? \ 44 strjoin(strjoin(strjoin(lltostr(n / 1000000), "."), \ 45 lltostr((n % 1000000) / 100000)), "M") : n >= 1000 ? \ 46 strjoin(strjoin(strjoin(lltostr(n / 1000), "."), \ 47 lltostr((n % 1000) / 100)), "K") : lltostr(n) 48 49 /* 50 * BYTES_TO_STR(n) - takes a byte count and returns a string with a prefix, 51 * intended to fit withen 6 chars. 52 * 53 * Input Output 54 * 0 0 55 * 1 1 56 * 10 10 57 * 999 0.9K 58 * 1000 0.9K 59 * 1024 1.0K 60 * 10240 10.0K 61 * 1000000 976.5K 62 * 1048576 1.0M 63 * 1000000000 953.6M 64 */ 65 #define BYTES_TO_STR(n) \ 66 n >= 1024000 ? \ 67 strjoin(strjoin(strjoin(lltostr(n / 1048576), "."), \ 68 lltostr((n % 1048576) / 104858)), "M") : n >= 1000 ? \ 69 strjoin(strjoin(strjoin(lltostr(n / 1024), "."), \ 70 lltostr((n % 1024) / 103)), "K") : lltostr(n) 71 72 /* 73 * US_TO_STR(n) - takes microseconds and returns a string with a prefix, 74 * intended to fit withen 6 chars. 75 * 76 * Input Output 77 * 0 0 78 * 1 1u 79 * 10 10u 80 * 999 999u 81 * 1000 1.0m 82 * 1100 1.1m 83 * 10000 10.0m 84 * 999999 999.0m 85 */ 86 #define US_TO_STR(n) \ 87 n == 0 ? "0" : n >= 1000 ? \ 88 strjoin(lltostr(n / 1000), "m") : strjoin(lltostr(n), "u") 89 90