2010-04-07 17:43:41 +00:00
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/*
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2013-04-23 20:24:30 +00:00
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* This file is part of the libsigrok project.
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2010-04-07 17:43:41 +00:00
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*
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* Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <stdint.h>
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#include <stdlib.h>
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#include <string.h>
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2013-11-01 17:40:06 +00:00
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#include <errno.h>
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2012-07-04 22:55:07 +00:00
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#include "libsigrok.h"
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#include "libsigrok-internal.h"
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2010-04-07 17:43:41 +00:00
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2014-04-25 16:40:59 +00:00
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/** @cond PRIVATE */
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2013-12-23 03:38:35 +00:00
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#define LOG_PREFIX "strutil"
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2014-04-25 16:40:59 +00:00
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/** @endcond */
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2012-11-11 11:44:16 +00:00
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2012-10-21 22:30:12 +00:00
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/**
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* @file
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*
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* Helper functions for handling or converting libsigrok-related strings.
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*/
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2012-10-21 14:13:36 +00:00
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/**
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* @defgroup grp_strutil String utilities
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*
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* Helper functions for handling or converting libsigrok-related strings.
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*
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* @{
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*/
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2013-11-01 17:40:06 +00:00
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/**
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2013-12-27 15:18:28 +00:00
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* @private
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*
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2013-11-01 17:40:06 +00:00
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* Convert a string representation of a numeric value to a long integer. The
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* conversion is strict and will fail if the complete string does not represent
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* a valid long integer. The function sets errno according to the details of the
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* failure.
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*
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* @param str The string representation to convert.
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* @param ret Pointer to long where the result of the conversion will be stored.
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*
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* @return SR_OK if conversion is successful, otherwise SR_ERR.
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*
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* @since 0.3.0
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*/
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2013-12-03 16:16:59 +00:00
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SR_PRIV int sr_atol(const char *str, long *ret)
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2013-11-01 17:40:06 +00:00
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{
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long tmp;
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char *endptr = NULL;
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errno = 0;
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tmp = strtol(str, &endptr, 0);
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if (!endptr || *endptr || errno) {
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if (!errno)
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errno = EINVAL;
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return SR_ERR;
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}
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*ret = tmp;
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return SR_OK;
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}
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/**
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2013-12-27 15:18:28 +00:00
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* @private
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*
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2013-11-01 17:40:06 +00:00
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* Convert a string representation of a numeric value to an integer. The
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* conversion is strict and will fail if the complete string does not represent
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* a valid integer. The function sets errno according to the details of the
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* failure.
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*
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* @param str The string representation to convert.
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* @param ret Pointer to int where the result of the conversion will be stored.
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*
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* @return SR_OK if conversion is successful, otherwise SR_ERR.
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*
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* @since 0.3.0
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*/
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2013-12-03 16:16:59 +00:00
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SR_PRIV int sr_atoi(const char *str, int *ret)
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2013-11-01 17:40:06 +00:00
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{
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long tmp;
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if (sr_atol(str, &tmp) != SR_OK)
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return SR_ERR;
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if ((int) tmp != tmp) {
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errno = ERANGE;
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return SR_ERR;
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}
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*ret = (int) tmp;
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return SR_OK;
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}
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/**
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2013-12-27 15:18:28 +00:00
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* @private
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*
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2013-11-01 17:40:06 +00:00
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* Convert a string representation of a numeric value to a double. The
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* conversion is strict and will fail if the complete string does not represent
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* a valid double. The function sets errno according to the details of the
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* failure.
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*
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* @param str The string representation to convert.
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* @param ret Pointer to double where the result of the conversion will be stored.
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*
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* @return SR_OK if conversion is successful, otherwise SR_ERR.
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*
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* @since 0.3.0
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*/
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2013-12-03 16:16:59 +00:00
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SR_PRIV int sr_atod(const char *str, double *ret)
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2013-11-01 17:40:06 +00:00
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{
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double tmp;
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char *endptr = NULL;
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errno = 0;
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tmp = strtof(str, &endptr);
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if (!endptr || *endptr || errno) {
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if (!errno)
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errno = EINVAL;
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return SR_ERR;
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}
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*ret = tmp;
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return SR_OK;
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}
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/**
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2013-12-27 15:18:28 +00:00
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* @private
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*
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2013-11-01 17:40:06 +00:00
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* Convert a string representation of a numeric value to a float. The
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* conversion is strict and will fail if the complete string does not represent
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* a valid float. The function sets errno according to the details of the
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* failure.
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*
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* @param str The string representation to convert.
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* @param ret Pointer to float where the result of the conversion will be stored.
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*
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* @return SR_OK if conversion is successful, otherwise SR_ERR.
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*
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* @since 0.3.0
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*/
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2013-12-03 16:16:59 +00:00
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SR_PRIV int sr_atof(const char *str, float *ret)
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2013-11-01 17:40:06 +00:00
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{
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double tmp;
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if (sr_atod(str, &tmp) != SR_OK)
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return SR_ERR;
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if ((float) tmp != tmp) {
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errno = ERANGE;
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return SR_ERR;
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}
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*ret = (float) tmp;
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return SR_OK;
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}
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2014-01-16 14:28:48 +00:00
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/**
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* @private
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*
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* Convert a string representation of a numeric value to a float. The
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* conversion is strict and will fail if the complete string does not represent
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* a valid float. The function sets errno according to the details of the
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* failure. This version ignores the locale.
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*
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* @param str The string representation to convert.
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* @param ret Pointer to float where the result of the conversion will be stored.
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*
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* @return SR_OK if conversion is successful, otherwise SR_ERR.
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*
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* @since 0.3.0
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*/
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SR_PRIV int sr_atof_ascii(const char *str, float *ret)
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{
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double tmp;
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char *endptr = NULL;
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errno = 0;
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tmp = g_ascii_strtod(str, &endptr);
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if (!endptr || *endptr || errno) {
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if (!errno)
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errno = EINVAL;
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return SR_ERR;
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}
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/* FIXME This fails unexpectedly. Some other method to safel downcast
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* needs to be found. Checking against FLT_MAX doesn't work as well. */
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/*
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if ((float) tmp != tmp) {
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errno = ERANGE;
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sr_dbg("ERANGEEEE %e != %e", (float) tmp, tmp);
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return SR_ERR;
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}
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*/
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*ret = (float) tmp;
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return SR_OK;
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}
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2010-04-07 17:43:41 +00:00
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/**
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2013-08-06 22:18:36 +00:00
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* Convert a numeric value value to its "natural" string representation
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* in SI units.
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2010-04-07 17:43:41 +00:00
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*
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2012-07-07 08:32:00 +00:00
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* E.g. a value of 3000000, with units set to "W", would be converted
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* to "3 MW", 20000 to "20 kW", 31500 would become "31.5 kW".
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2010-04-07 17:43:41 +00:00
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*
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2012-07-07 08:32:00 +00:00
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* @param x The value to convert.
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* @param unit The unit to append to the string, or NULL if the string
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* has no units.
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2012-02-17 19:44:19 +00:00
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*
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2012-02-11 19:06:46 +00:00
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* @return A g_try_malloc()ed string representation of the samplerate value,
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* or NULL upon errors. The caller is responsible to g_free() the
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* memory.
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2014-05-04 18:51:05 +00:00
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*
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* @since 0.2.0
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2010-04-07 17:43:41 +00:00
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*/
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2012-07-07 08:32:00 +00:00
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SR_API char *sr_si_string_u64(uint64_t x, const char *unit)
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2010-04-07 17:43:41 +00:00
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{
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2013-06-04 00:20:57 +00:00
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uint8_t i;
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uint64_t quot, divisor[] = {
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2013-08-06 22:18:36 +00:00
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SR_HZ(1), SR_KHZ(1), SR_MHZ(1), SR_GHZ(1),
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SR_GHZ(1000), SR_GHZ(1000 * 1000), SR_GHZ(1000 * 1000 * 1000),
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2013-06-04 00:20:57 +00:00
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};
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const char *p, prefix[] = "\0kMGTPE";
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2014-01-13 21:22:40 +00:00
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char fmt[16], fract[20] = "", *f;
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2013-06-04 00:20:57 +00:00
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2012-11-11 11:44:16 +00:00
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if (unit == NULL)
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2012-07-07 08:32:00 +00:00
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unit = "";
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2010-04-07 17:43:41 +00:00
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2013-06-04 00:20:57 +00:00
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for (i = 0; (quot = x / divisor[i]) >= 1000; i++);
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if (i) {
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2014-01-13 21:22:40 +00:00
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sprintf(fmt, ".%%0%d"PRIu64, i * 3);
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2013-06-04 00:20:57 +00:00
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f = fract + sprintf(fract, fmt, x % divisor[i]) - 1;
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while (f >= fract && strchr("0.", *f))
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*f-- = 0;
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2012-02-11 19:06:46 +00:00
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}
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2010-04-07 17:43:41 +00:00
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2013-06-04 00:20:57 +00:00
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p = prefix + i;
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return g_strdup_printf("%" PRIu64 "%s %.1s%s", quot, fract, p, unit);
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2012-07-07 08:32:00 +00:00
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}
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2010-04-07 17:43:41 +00:00
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2012-07-07 08:32:00 +00:00
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/**
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* Convert a numeric samplerate value to its "natural" string representation.
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*
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* E.g. a value of 3000000 would be converted to "3 MHz", 20000 to "20 kHz",
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* 31500 would become "31.5 kHz".
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*
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* @param samplerate The samplerate in Hz.
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*
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* @return A g_try_malloc()ed string representation of the samplerate value,
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* or NULL upon errors. The caller is responsible to g_free() the
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* memory.
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2014-05-04 18:51:05 +00:00
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*
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* @since 0.1.0
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2012-07-07 08:32:00 +00:00
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*/
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SR_API char *sr_samplerate_string(uint64_t samplerate)
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{
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return sr_si_string_u64(samplerate, "Hz");
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2010-04-07 17:43:41 +00:00
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}
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2011-01-05 23:51:29 +00:00
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/**
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2011-02-08 20:47:50 +00:00
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* Convert a numeric frequency value to the "natural" string representation
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2011-01-05 23:51:29 +00:00
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* of its period.
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*
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2011-01-13 00:26:23 +00:00
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* E.g. a value of 3000000 would be converted to "3 us", 20000 to "50 ms".
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2011-01-05 23:51:29 +00:00
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*
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* @param frequency The frequency in Hz.
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2012-02-17 19:44:19 +00:00
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*
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2012-02-11 19:06:46 +00:00
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* @return A g_try_malloc()ed string representation of the frequency value,
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* or NULL upon errors. The caller is responsible to g_free() the
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* memory.
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2014-05-04 18:51:05 +00:00
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*
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* @since 0.1.0
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2011-01-05 23:51:29 +00:00
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*/
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2012-02-01 22:40:35 +00:00
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SR_API char *sr_period_string(uint64_t frequency)
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2011-01-05 23:51:29 +00:00
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{
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char *o;
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int r;
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2012-02-11 19:06:46 +00:00
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/* Allocate enough for a uint64_t as string + " ms". */
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if (!(o = g_try_malloc0(30 + 1))) {
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2012-11-11 11:44:16 +00:00
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sr_err("%s: o malloc failed", __func__);
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2011-01-05 23:51:29 +00:00
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return NULL;
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2012-02-11 19:06:46 +00:00
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}
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2011-01-05 23:51:29 +00:00
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2011-02-22 16:57:03 +00:00
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if (frequency >= SR_GHZ(1))
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2011-01-05 23:51:29 +00:00
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r = snprintf(o, 30, "%" PRIu64 " ns", frequency / 1000000000);
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2011-02-22 16:57:03 +00:00
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else if (frequency >= SR_MHZ(1))
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2011-01-13 00:26:23 +00:00
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r = snprintf(o, 30, "%" PRIu64 " us", frequency / 1000000);
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2011-02-22 16:57:03 +00:00
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else if (frequency >= SR_KHZ(1))
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2011-01-05 23:51:29 +00:00
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r = snprintf(o, 30, "%" PRIu64 " ms", frequency / 1000);
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else
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r = snprintf(o, 30, "%" PRIu64 " s", frequency);
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if (r < 0) {
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/* Something went wrong... */
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2012-02-11 19:06:46 +00:00
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g_free(o);
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2011-01-05 23:51:29 +00:00
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return NULL;
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}
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return o;
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}
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2011-01-31 21:29:40 +00:00
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2012-05-16 23:54:57 +00:00
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/**
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2013-03-31 08:27:15 +00:00
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|
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* Convert a numeric voltage value to the "natural" string representation
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* of its voltage value. The voltage is specified as a rational number's
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|
|
|
* numerator and denominator.
|
2012-05-16 23:54:57 +00:00
|
|
|
*
|
|
|
|
* E.g. a value of 300000 would be converted to "300mV", 2 to "2V".
|
|
|
|
*
|
2013-03-31 08:27:15 +00:00
|
|
|
* @param v_p The voltage numerator.
|
|
|
|
* @param v_q The voltage denominator.
|
2012-05-16 23:54:57 +00:00
|
|
|
*
|
|
|
|
* @return A g_try_malloc()ed string representation of the voltage value,
|
|
|
|
* or NULL upon errors. The caller is responsible to g_free() the
|
|
|
|
* memory.
|
2014-05-04 18:51:05 +00:00
|
|
|
*
|
|
|
|
* @since 0.2.0
|
2012-05-16 23:54:57 +00:00
|
|
|
*/
|
2013-03-31 08:27:15 +00:00
|
|
|
SR_API char *sr_voltage_string(uint64_t v_p, uint64_t v_q)
|
2012-05-16 23:54:57 +00:00
|
|
|
{
|
|
|
|
int r;
|
2013-02-04 12:36:23 +00:00
|
|
|
char *o;
|
2012-05-16 23:54:57 +00:00
|
|
|
|
|
|
|
if (!(o = g_try_malloc0(30 + 1))) {
|
2012-11-11 11:44:16 +00:00
|
|
|
sr_err("%s: o malloc failed", __func__);
|
2012-05-16 23:54:57 +00:00
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
2013-03-31 08:27:15 +00:00
|
|
|
if (v_q == 1000)
|
|
|
|
r = snprintf(o, 30, "%" PRIu64 "mV", v_p);
|
|
|
|
else if (v_q == 1)
|
|
|
|
r = snprintf(o, 30, "%" PRIu64 "V", v_p);
|
2012-05-16 23:54:57 +00:00
|
|
|
else
|
2013-03-31 08:27:15 +00:00
|
|
|
r = snprintf(o, 30, "%gV", (float)v_p / (float)v_q);
|
2012-05-16 23:54:57 +00:00
|
|
|
|
|
|
|
if (r < 0) {
|
|
|
|
/* Something went wrong... */
|
|
|
|
g_free(o);
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
return o;
|
|
|
|
}
|
|
|
|
|
2011-02-08 20:47:50 +00:00
|
|
|
/**
|
2012-04-07 15:35:14 +00:00
|
|
|
* Parse a trigger specification string.
|
2011-02-08 20:47:50 +00:00
|
|
|
*
|
2012-10-21 14:52:56 +00:00
|
|
|
* @param sdi The device instance for which the trigger specification is
|
|
|
|
* intended. Must not be NULL. Also, sdi->driver and
|
|
|
|
* sdi->driver->info_get must not be NULL.
|
2012-04-07 15:35:14 +00:00
|
|
|
* @param triggerstring The string containing the trigger specification for
|
2014-03-24 20:34:20 +00:00
|
|
|
* one or more channels of this device. Entries for multiple channels are
|
2012-04-07 15:35:14 +00:00
|
|
|
* comma-separated. Triggers are specified in the form key=value,
|
2014-03-24 20:34:20 +00:00
|
|
|
* where the key is a channel number (or channel name) and the value is
|
2012-04-07 15:35:14 +00:00
|
|
|
* the requested trigger type. Valid trigger types currently
|
|
|
|
* include 'r' (rising edge), 'f' (falling edge), 'c' (any pin value
|
|
|
|
* change), '0' (low value), or '1' (high value).
|
|
|
|
* Example: "1=r,sck=f,miso=0,7=c"
|
2012-02-17 19:44:19 +00:00
|
|
|
*
|
2012-04-07 15:35:14 +00:00
|
|
|
* @return Pointer to a list of trigger types (strings), or NULL upon errors.
|
|
|
|
* The pointer list (if non-NULL) has as many entries as the
|
2014-03-24 20:34:20 +00:00
|
|
|
* respective device has channels (all physically available channels,
|
2012-04-07 15:35:14 +00:00
|
|
|
* not just enabled ones). Entries of the list which don't have
|
|
|
|
* a trigger value set in 'triggerstring' are NULL, the other entries
|
|
|
|
* contain the respective trigger type which is requested for the
|
2014-03-24 20:34:20 +00:00
|
|
|
* respective channel (e.g. "r", "c", and so on).
|
2014-05-04 18:51:05 +00:00
|
|
|
*
|
|
|
|
* @since 0.2.0
|
2011-02-08 20:47:50 +00:00
|
|
|
*/
|
2012-07-22 12:28:40 +00:00
|
|
|
SR_API char **sr_parse_triggerstring(const struct sr_dev_inst *sdi,
|
2012-02-01 22:40:35 +00:00
|
|
|
const char *triggerstring)
|
2011-01-31 21:29:40 +00:00
|
|
|
{
|
|
|
|
GSList *l;
|
2013-03-25 19:21:10 +00:00
|
|
|
GVariant *gvar;
|
2014-03-24 20:34:20 +00:00
|
|
|
struct sr_channel *ch;
|
|
|
|
int max_channels, channelnum, i;
|
2012-05-07 12:35:56 +00:00
|
|
|
char **tokens, **triggerlist, *trigger, *tc;
|
|
|
|
const char *trigger_types;
|
2011-01-31 21:29:40 +00:00
|
|
|
gboolean error;
|
|
|
|
|
2014-03-24 20:34:20 +00:00
|
|
|
max_channels = g_slist_length(sdi->channels);
|
2011-01-31 21:29:40 +00:00
|
|
|
error = FALSE;
|
2011-04-16 12:17:51 +00:00
|
|
|
|
2014-03-24 20:34:20 +00:00
|
|
|
if (!(triggerlist = g_try_malloc0(max_channels * sizeof(char *)))) {
|
2012-11-11 11:44:16 +00:00
|
|
|
sr_err("%s: triggerlist malloc failed", __func__);
|
2011-04-16 12:17:51 +00:00
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
2013-04-20 00:00:49 +00:00
|
|
|
if (sdi->driver->config_list(SR_CONF_TRIGGER_TYPE,
|
|
|
|
&gvar, sdi, NULL) != SR_OK) {
|
2012-11-11 11:44:16 +00:00
|
|
|
sr_err("%s: Device doesn't support any triggers.", __func__);
|
2011-01-31 21:29:40 +00:00
|
|
|
return NULL;
|
2012-04-07 15:35:14 +00:00
|
|
|
}
|
2013-03-25 19:21:10 +00:00
|
|
|
trigger_types = g_variant_get_string(gvar, NULL);
|
2011-01-31 21:29:40 +00:00
|
|
|
|
2014-03-24 20:34:20 +00:00
|
|
|
tokens = g_strsplit(triggerstring, ",", max_channels);
|
2011-01-31 21:29:40 +00:00
|
|
|
for (i = 0; tokens[i]; i++) {
|
2014-03-24 20:34:20 +00:00
|
|
|
channelnum = -1;
|
|
|
|
for (l = sdi->channels; l; l = l->next) {
|
|
|
|
ch = (struct sr_channel *)l->data;
|
|
|
|
if (ch->enabled
|
|
|
|
&& !strncmp(ch->name, tokens[i],
|
|
|
|
strlen(ch->name))) {
|
|
|
|
channelnum = ch->index;
|
2012-10-08 21:56:06 +00:00
|
|
|
break;
|
2011-01-31 21:29:40 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2014-03-24 20:34:20 +00:00
|
|
|
if (channelnum < 0 || channelnum >= max_channels) {
|
|
|
|
sr_err("Invalid channel.");
|
2011-01-31 21:29:40 +00:00
|
|
|
error = TRUE;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
if ((trigger = strchr(tokens[i], '='))) {
|
|
|
|
for (tc = ++trigger; *tc; tc++) {
|
|
|
|
if (strchr(trigger_types, *tc) == NULL) {
|
2012-11-11 11:44:16 +00:00
|
|
|
sr_err("Unsupported trigger "
|
2012-04-07 15:40:52 +00:00
|
|
|
"type '%c'.", *tc);
|
2011-01-31 21:29:40 +00:00
|
|
|
error = TRUE;
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
if (!error)
|
2014-03-24 20:34:20 +00:00
|
|
|
triggerlist[channelnum] = g_strdup(trigger);
|
2011-01-31 21:29:40 +00:00
|
|
|
}
|
|
|
|
}
|
|
|
|
g_strfreev(tokens);
|
2013-03-25 19:21:10 +00:00
|
|
|
g_variant_unref(gvar);
|
2011-01-31 21:29:40 +00:00
|
|
|
|
|
|
|
if (error) {
|
2014-03-24 20:34:20 +00:00
|
|
|
for (i = 0; i < max_channels; i++)
|
2012-01-18 23:32:02 +00:00
|
|
|
g_free(triggerlist[i]);
|
2011-01-31 21:29:40 +00:00
|
|
|
g_free(triggerlist);
|
|
|
|
triggerlist = NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
return triggerlist;
|
|
|
|
}
|
|
|
|
|
2011-02-08 20:47:50 +00:00
|
|
|
/**
|
|
|
|
* Convert a "natural" string representation of a size value to uint64_t.
|
|
|
|
*
|
|
|
|
* E.g. a value of "3k" or "3 K" would be converted to 3000, a value
|
|
|
|
* of "15M" would be converted to 15000000.
|
|
|
|
*
|
|
|
|
* Value representations other than decimal (such as hex or octal) are not
|
|
|
|
* supported. Only 'k' (kilo), 'm' (mega), 'g' (giga) suffixes are supported.
|
|
|
|
* Spaces (but not other whitespace) between value and suffix are allowed.
|
|
|
|
*
|
|
|
|
* @param sizestring A string containing a (decimal) size value.
|
2011-11-27 18:31:25 +00:00
|
|
|
* @param size Pointer to uint64_t which will contain the string's size value.
|
2011-02-08 20:47:50 +00:00
|
|
|
*
|
2012-02-17 19:44:19 +00:00
|
|
|
* @return SR_OK upon success, SR_ERR upon errors.
|
2014-05-04 18:51:05 +00:00
|
|
|
*
|
|
|
|
* @since 0.1.0
|
2011-02-08 20:47:50 +00:00
|
|
|
*/
|
2012-02-01 22:40:35 +00:00
|
|
|
SR_API int sr_parse_sizestring(const char *sizestring, uint64_t *size)
|
2011-01-31 21:29:40 +00:00
|
|
|
{
|
2011-11-27 18:31:25 +00:00
|
|
|
int multiplier, done;
|
2014-01-16 01:53:40 +00:00
|
|
|
double frac_part;
|
2011-01-31 21:29:40 +00:00
|
|
|
char *s;
|
|
|
|
|
2011-11-27 18:31:25 +00:00
|
|
|
*size = strtoull(sizestring, &s, 10);
|
2011-01-31 21:29:40 +00:00
|
|
|
multiplier = 0;
|
2014-01-16 01:53:40 +00:00
|
|
|
frac_part = 0;
|
2011-11-27 18:31:25 +00:00
|
|
|
done = FALSE;
|
|
|
|
while (s && *s && multiplier == 0 && !done) {
|
2011-01-31 21:29:40 +00:00
|
|
|
switch (*s) {
|
|
|
|
case ' ':
|
|
|
|
break;
|
2014-01-16 01:53:40 +00:00
|
|
|
case '.':
|
|
|
|
frac_part = g_ascii_strtod(s, &s);
|
|
|
|
break;
|
2011-01-31 21:29:40 +00:00
|
|
|
case 'k':
|
|
|
|
case 'K':
|
2011-02-22 16:57:03 +00:00
|
|
|
multiplier = SR_KHZ(1);
|
2011-01-31 21:29:40 +00:00
|
|
|
break;
|
|
|
|
case 'm':
|
|
|
|
case 'M':
|
2011-02-22 16:57:03 +00:00
|
|
|
multiplier = SR_MHZ(1);
|
2011-01-31 21:29:40 +00:00
|
|
|
break;
|
|
|
|
case 'g':
|
|
|
|
case 'G':
|
2011-02-22 16:57:03 +00:00
|
|
|
multiplier = SR_GHZ(1);
|
2011-01-31 21:29:40 +00:00
|
|
|
break;
|
|
|
|
default:
|
2011-11-27 18:31:25 +00:00
|
|
|
done = TRUE;
|
|
|
|
s--;
|
2011-01-31 21:29:40 +00:00
|
|
|
}
|
|
|
|
s++;
|
|
|
|
}
|
2014-01-16 01:53:40 +00:00
|
|
|
if (multiplier > 0) {
|
2011-11-27 18:31:25 +00:00
|
|
|
*size *= multiplier;
|
2014-01-16 01:53:40 +00:00
|
|
|
*size += frac_part * multiplier;
|
|
|
|
} else
|
|
|
|
*size += frac_part;
|
2011-01-31 21:29:40 +00:00
|
|
|
|
2011-11-27 18:31:25 +00:00
|
|
|
if (*s && strcasecmp(s, "Hz"))
|
|
|
|
return SR_ERR;
|
|
|
|
|
|
|
|
return SR_OK;
|
2011-01-31 21:29:40 +00:00
|
|
|
}
|
|
|
|
|
2011-02-08 20:47:50 +00:00
|
|
|
/**
|
|
|
|
* Convert a "natural" string representation of a time value to an
|
|
|
|
* uint64_t value in milliseconds.
|
|
|
|
*
|
|
|
|
* E.g. a value of "3s" or "3 s" would be converted to 3000, a value
|
|
|
|
* of "15ms" would be converted to 15.
|
|
|
|
*
|
|
|
|
* Value representations other than decimal (such as hex or octal) are not
|
|
|
|
* supported. Only lower-case "s" and "ms" time suffixes are supported.
|
|
|
|
* Spaces (but not other whitespace) between value and suffix are allowed.
|
|
|
|
*
|
|
|
|
* @param timestring A string containing a (decimal) time value.
|
|
|
|
* @return The string's time value as uint64_t, in milliseconds.
|
|
|
|
*
|
2012-10-21 21:24:42 +00:00
|
|
|
* @todo Add support for "m" (minutes) and others.
|
|
|
|
* @todo Add support for picoseconds?
|
|
|
|
* @todo Allow both lower-case and upper-case? If no, document it.
|
2014-05-04 18:51:05 +00:00
|
|
|
*
|
|
|
|
* @since 0.1.0
|
2011-02-08 20:47:50 +00:00
|
|
|
*/
|
2012-02-01 22:40:35 +00:00
|
|
|
SR_API uint64_t sr_parse_timestring(const char *timestring)
|
2011-01-31 21:29:40 +00:00
|
|
|
{
|
|
|
|
uint64_t time_msec;
|
|
|
|
char *s;
|
|
|
|
|
2012-10-21 21:24:42 +00:00
|
|
|
/* TODO: Error handling, logging. */
|
|
|
|
|
2011-01-31 21:29:40 +00:00
|
|
|
time_msec = strtoull(timestring, &s, 10);
|
|
|
|
if (time_msec == 0 && s == timestring)
|
|
|
|
return 0;
|
|
|
|
|
|
|
|
if (s && *s) {
|
|
|
|
while (*s == ' ')
|
|
|
|
s++;
|
|
|
|
if (!strcmp(s, "s"))
|
|
|
|
time_msec *= 1000;
|
|
|
|
else if (!strcmp(s, "ms"))
|
|
|
|
; /* redundant */
|
|
|
|
else
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
return time_msec;
|
|
|
|
}
|
2011-11-19 00:41:41 +00:00
|
|
|
|
2014-05-04 18:51:05 +00:00
|
|
|
/** @since 0.1.0 */
|
2012-02-01 22:40:35 +00:00
|
|
|
SR_API gboolean sr_parse_boolstring(const char *boolstr)
|
2011-11-19 00:41:41 +00:00
|
|
|
{
|
|
|
|
if (!boolstr)
|
|
|
|
return FALSE;
|
|
|
|
|
2012-04-23 13:31:41 +00:00
|
|
|
if (!g_ascii_strncasecmp(boolstr, "true", 4) ||
|
|
|
|
!g_ascii_strncasecmp(boolstr, "yes", 3) ||
|
|
|
|
!g_ascii_strncasecmp(boolstr, "on", 2) ||
|
|
|
|
!g_ascii_strncasecmp(boolstr, "1", 1))
|
2011-11-19 00:41:41 +00:00
|
|
|
return TRUE;
|
|
|
|
|
|
|
|
return FALSE;
|
|
|
|
}
|
2012-05-15 18:46:14 +00:00
|
|
|
|
2014-05-04 18:51:05 +00:00
|
|
|
/** @since 0.2.0 */
|
2013-03-30 13:41:01 +00:00
|
|
|
SR_API int sr_parse_period(const char *periodstr, uint64_t *p, uint64_t *q)
|
2012-05-15 18:46:14 +00:00
|
|
|
{
|
|
|
|
char *s;
|
|
|
|
|
2013-03-30 13:41:01 +00:00
|
|
|
*p = strtoull(periodstr, &s, 10);
|
|
|
|
if (*p == 0 && s == periodstr)
|
2012-05-15 18:46:14 +00:00
|
|
|
/* No digits found. */
|
|
|
|
return SR_ERR_ARG;
|
|
|
|
|
|
|
|
if (s && *s) {
|
|
|
|
while (*s == ' ')
|
|
|
|
s++;
|
2012-11-20 19:02:14 +00:00
|
|
|
if (!strcmp(s, "fs"))
|
2013-03-30 13:41:01 +00:00
|
|
|
*q = 1000000000000000ULL;
|
2012-11-20 19:02:14 +00:00
|
|
|
else if (!strcmp(s, "ps"))
|
2013-03-30 13:41:01 +00:00
|
|
|
*q = 1000000000000ULL;
|
2012-11-20 19:02:14 +00:00
|
|
|
else if (!strcmp(s, "ns"))
|
2013-03-30 13:41:01 +00:00
|
|
|
*q = 1000000000ULL;
|
2012-05-15 18:46:14 +00:00
|
|
|
else if (!strcmp(s, "us"))
|
2013-03-30 13:41:01 +00:00
|
|
|
*q = 1000000;
|
2012-05-15 18:46:14 +00:00
|
|
|
else if (!strcmp(s, "ms"))
|
2013-03-30 13:41:01 +00:00
|
|
|
*q = 1000;
|
2012-05-15 18:46:14 +00:00
|
|
|
else if (!strcmp(s, "s"))
|
2013-03-30 13:41:01 +00:00
|
|
|
*q = 1;
|
2012-05-15 18:46:14 +00:00
|
|
|
else
|
|
|
|
/* Must have a time suffix. */
|
|
|
|
return SR_ERR_ARG;
|
|
|
|
}
|
|
|
|
|
|
|
|
return SR_OK;
|
|
|
|
}
|
|
|
|
|
2014-05-04 18:51:05 +00:00
|
|
|
/** @since 0.2.0 */
|
2013-03-30 13:41:01 +00:00
|
|
|
SR_API int sr_parse_voltage(const char *voltstr, uint64_t *p, uint64_t *q)
|
2012-05-16 23:54:57 +00:00
|
|
|
{
|
|
|
|
char *s;
|
|
|
|
|
2013-03-30 13:41:01 +00:00
|
|
|
*p = strtoull(voltstr, &s, 10);
|
|
|
|
if (*p == 0 && s == voltstr)
|
2012-05-16 23:54:57 +00:00
|
|
|
/* No digits found. */
|
|
|
|
return SR_ERR_ARG;
|
|
|
|
|
|
|
|
if (s && *s) {
|
|
|
|
while (*s == ' ')
|
|
|
|
s++;
|
|
|
|
if (!strcasecmp(s, "mv"))
|
2013-03-30 13:41:01 +00:00
|
|
|
*q = 1000L;
|
2012-05-16 23:54:57 +00:00
|
|
|
else if (!strcasecmp(s, "v"))
|
2013-03-30 13:41:01 +00:00
|
|
|
*q = 1;
|
2012-05-16 23:54:57 +00:00
|
|
|
else
|
|
|
|
/* Must have a base suffix. */
|
|
|
|
return SR_ERR_ARG;
|
|
|
|
}
|
|
|
|
|
|
|
|
return SR_OK;
|
|
|
|
}
|
|
|
|
|
2012-10-21 14:13:36 +00:00
|
|
|
/** @} */
|