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Commit | Line | Data |
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25e7d9b1 | 1 | /* |
50985c20 | 2 | * This file is part of the libsigrok project. |
25e7d9b1 UH |
3 | * |
4 | * Copyright (C) 2010 Uwe Hermann <uwe@hermann-uwe.de> | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
10 | * | |
11 | * This program is distributed in the hope that it will be useful, | |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
19 | */ | |
20 | ||
21 | #include <stdint.h> | |
22 | #include <stdlib.h> | |
23 | #include <string.h> | |
9e4f8cf9 | 24 | #include <errno.h> |
45c59c8b BV |
25 | #include "libsigrok.h" |
26 | #include "libsigrok-internal.h" | |
25e7d9b1 | 27 | |
3544f848 | 28 | #define LOG_PREFIX "strutil" |
a885ce3e | 29 | |
393fb9cb UH |
30 | /** |
31 | * @file | |
32 | * | |
33 | * Helper functions for handling or converting libsigrok-related strings. | |
34 | */ | |
35 | ||
7b870c38 UH |
36 | /** |
37 | * @defgroup grp_strutil String utilities | |
38 | * | |
39 | * Helper functions for handling or converting libsigrok-related strings. | |
40 | * | |
41 | * @{ | |
42 | */ | |
43 | ||
9e4f8cf9 | 44 | /** |
df823ac4 UH |
45 | * @private |
46 | * | |
9e4f8cf9 DJ |
47 | * Convert a string representation of a numeric value to a long integer. The |
48 | * conversion is strict and will fail if the complete string does not represent | |
49 | * a valid long integer. The function sets errno according to the details of the | |
50 | * failure. | |
51 | * | |
52 | * @param str The string representation to convert. | |
53 | * @param ret Pointer to long where the result of the conversion will be stored. | |
54 | * | |
55 | * @return SR_OK if conversion is successful, otherwise SR_ERR. | |
56 | * | |
57 | * @since 0.3.0 | |
58 | */ | |
8d558c7a | 59 | SR_PRIV int sr_atol(const char *str, long *ret) |
9e4f8cf9 DJ |
60 | { |
61 | long tmp; | |
62 | char *endptr = NULL; | |
63 | ||
64 | errno = 0; | |
65 | tmp = strtol(str, &endptr, 0); | |
66 | ||
67 | if (!endptr || *endptr || errno) { | |
68 | if (!errno) | |
69 | errno = EINVAL; | |
70 | return SR_ERR; | |
71 | } | |
72 | ||
73 | *ret = tmp; | |
74 | return SR_OK; | |
75 | } | |
76 | ||
77 | /** | |
df823ac4 UH |
78 | * @private |
79 | * | |
9e4f8cf9 DJ |
80 | * Convert a string representation of a numeric value to an integer. The |
81 | * conversion is strict and will fail if the complete string does not represent | |
82 | * a valid integer. The function sets errno according to the details of the | |
83 | * failure. | |
84 | * | |
85 | * @param str The string representation to convert. | |
86 | * @param ret Pointer to int where the result of the conversion will be stored. | |
87 | * | |
88 | * @return SR_OK if conversion is successful, otherwise SR_ERR. | |
89 | * | |
90 | * @since 0.3.0 | |
91 | */ | |
8d558c7a | 92 | SR_PRIV int sr_atoi(const char *str, int *ret) |
9e4f8cf9 DJ |
93 | { |
94 | long tmp; | |
95 | ||
96 | if (sr_atol(str, &tmp) != SR_OK) | |
97 | return SR_ERR; | |
98 | ||
99 | if ((int) tmp != tmp) { | |
100 | errno = ERANGE; | |
101 | return SR_ERR; | |
102 | } | |
103 | ||
104 | *ret = (int) tmp; | |
105 | return SR_OK; | |
106 | } | |
107 | ||
108 | /** | |
df823ac4 UH |
109 | * @private |
110 | * | |
9e4f8cf9 DJ |
111 | * Convert a string representation of a numeric value to a double. The |
112 | * conversion is strict and will fail if the complete string does not represent | |
113 | * a valid double. The function sets errno according to the details of the | |
114 | * failure. | |
115 | * | |
116 | * @param str The string representation to convert. | |
117 | * @param ret Pointer to double where the result of the conversion will be stored. | |
118 | * | |
119 | * @return SR_OK if conversion is successful, otherwise SR_ERR. | |
120 | * | |
121 | * @since 0.3.0 | |
122 | */ | |
8d558c7a | 123 | SR_PRIV int sr_atod(const char *str, double *ret) |
9e4f8cf9 DJ |
124 | { |
125 | double tmp; | |
126 | char *endptr = NULL; | |
127 | ||
128 | errno = 0; | |
129 | tmp = strtof(str, &endptr); | |
130 | ||
131 | if (!endptr || *endptr || errno) { | |
132 | if (!errno) | |
133 | errno = EINVAL; | |
134 | return SR_ERR; | |
135 | } | |
136 | ||
137 | *ret = tmp; | |
138 | return SR_OK; | |
139 | } | |
140 | ||
141 | /** | |
df823ac4 UH |
142 | * @private |
143 | * | |
9e4f8cf9 DJ |
144 | * Convert a string representation of a numeric value to a float. The |
145 | * conversion is strict and will fail if the complete string does not represent | |
146 | * a valid float. The function sets errno according to the details of the | |
147 | * failure. | |
148 | * | |
149 | * @param str The string representation to convert. | |
150 | * @param ret Pointer to float where the result of the conversion will be stored. | |
151 | * | |
152 | * @return SR_OK if conversion is successful, otherwise SR_ERR. | |
153 | * | |
154 | * @since 0.3.0 | |
155 | */ | |
8d558c7a | 156 | SR_PRIV int sr_atof(const char *str, float *ret) |
9e4f8cf9 DJ |
157 | { |
158 | double tmp; | |
159 | ||
160 | if (sr_atod(str, &tmp) != SR_OK) | |
161 | return SR_ERR; | |
162 | ||
163 | if ((float) tmp != tmp) { | |
164 | errno = ERANGE; | |
165 | return SR_ERR; | |
166 | } | |
167 | ||
168 | *ret = (float) tmp; | |
169 | return SR_OK; | |
170 | } | |
171 | ||
25e7d9b1 | 172 | /** |
b07b42f3 UH |
173 | * Convert a numeric value value to its "natural" string representation |
174 | * in SI units. | |
25e7d9b1 | 175 | * |
4cc9aea1 JH |
176 | * E.g. a value of 3000000, with units set to "W", would be converted |
177 | * to "3 MW", 20000 to "20 kW", 31500 would become "31.5 kW". | |
25e7d9b1 | 178 | * |
4cc9aea1 JH |
179 | * @param x The value to convert. |
180 | * @param unit The unit to append to the string, or NULL if the string | |
181 | * has no units. | |
44dae539 | 182 | * |
133a37bf UH |
183 | * @return A g_try_malloc()ed string representation of the samplerate value, |
184 | * or NULL upon errors. The caller is responsible to g_free() the | |
185 | * memory. | |
25e7d9b1 | 186 | */ |
4cc9aea1 | 187 | SR_API char *sr_si_string_u64(uint64_t x, const char *unit) |
25e7d9b1 | 188 | { |
094e6b81 PS |
189 | uint8_t i; |
190 | uint64_t quot, divisor[] = { | |
b07b42f3 UH |
191 | SR_HZ(1), SR_KHZ(1), SR_MHZ(1), SR_GHZ(1), |
192 | SR_GHZ(1000), SR_GHZ(1000 * 1000), SR_GHZ(1000 * 1000 * 1000), | |
094e6b81 PS |
193 | }; |
194 | const char *p, prefix[] = "\0kMGTPE"; | |
69d83be9 | 195 | char fmt[16], fract[20] = "", *f; |
094e6b81 | 196 | |
a885ce3e | 197 | if (unit == NULL) |
4cc9aea1 | 198 | unit = ""; |
25e7d9b1 | 199 | |
094e6b81 PS |
200 | for (i = 0; (quot = x / divisor[i]) >= 1000; i++); |
201 | ||
202 | if (i) { | |
69d83be9 | 203 | sprintf(fmt, ".%%0%d"PRIu64, i * 3); |
094e6b81 PS |
204 | f = fract + sprintf(fract, fmt, x % divisor[i]) - 1; |
205 | ||
206 | while (f >= fract && strchr("0.", *f)) | |
207 | *f-- = 0; | |
133a37bf | 208 | } |
25e7d9b1 | 209 | |
094e6b81 PS |
210 | p = prefix + i; |
211 | ||
212 | return g_strdup_printf("%" PRIu64 "%s %.1s%s", quot, fract, p, unit); | |
4cc9aea1 | 213 | } |
25e7d9b1 | 214 | |
4cc9aea1 JH |
215 | /** |
216 | * Convert a numeric samplerate value to its "natural" string representation. | |
217 | * | |
218 | * E.g. a value of 3000000 would be converted to "3 MHz", 20000 to "20 kHz", | |
219 | * 31500 would become "31.5 kHz". | |
220 | * | |
221 | * @param samplerate The samplerate in Hz. | |
222 | * | |
223 | * @return A g_try_malloc()ed string representation of the samplerate value, | |
224 | * or NULL upon errors. The caller is responsible to g_free() the | |
225 | * memory. | |
226 | */ | |
227 | SR_API char *sr_samplerate_string(uint64_t samplerate) | |
228 | { | |
229 | return sr_si_string_u64(samplerate, "Hz"); | |
25e7d9b1 | 230 | } |
2a3f9541 | 231 | |
2a3f9541 | 232 | /** |
dfcc0bf9 | 233 | * Convert a numeric frequency value to the "natural" string representation |
2a3f9541 BV |
234 | * of its period. |
235 | * | |
2507648e | 236 | * E.g. a value of 3000000 would be converted to "3 us", 20000 to "50 ms". |
2a3f9541 BV |
237 | * |
238 | * @param frequency The frequency in Hz. | |
44dae539 | 239 | * |
133a37bf UH |
240 | * @return A g_try_malloc()ed string representation of the frequency value, |
241 | * or NULL upon errors. The caller is responsible to g_free() the | |
242 | * memory. | |
2a3f9541 | 243 | */ |
1a081ca6 | 244 | SR_API char *sr_period_string(uint64_t frequency) |
2a3f9541 BV |
245 | { |
246 | char *o; | |
247 | int r; | |
248 | ||
133a37bf UH |
249 | /* Allocate enough for a uint64_t as string + " ms". */ |
250 | if (!(o = g_try_malloc0(30 + 1))) { | |
a885ce3e | 251 | sr_err("%s: o malloc failed", __func__); |
2a3f9541 | 252 | return NULL; |
133a37bf | 253 | } |
2a3f9541 | 254 | |
59df0c77 | 255 | if (frequency >= SR_GHZ(1)) |
2a3f9541 | 256 | r = snprintf(o, 30, "%" PRIu64 " ns", frequency / 1000000000); |
59df0c77 | 257 | else if (frequency >= SR_MHZ(1)) |
2507648e | 258 | r = snprintf(o, 30, "%" PRIu64 " us", frequency / 1000000); |
59df0c77 | 259 | else if (frequency >= SR_KHZ(1)) |
2a3f9541 BV |
260 | r = snprintf(o, 30, "%" PRIu64 " ms", frequency / 1000); |
261 | else | |
262 | r = snprintf(o, 30, "%" PRIu64 " s", frequency); | |
263 | ||
264 | if (r < 0) { | |
265 | /* Something went wrong... */ | |
133a37bf | 266 | g_free(o); |
2a3f9541 BV |
267 | return NULL; |
268 | } | |
269 | ||
270 | return o; | |
271 | } | |
40f5ddac | 272 | |
79afc8ca | 273 | /** |
e0e15067 BV |
274 | * Convert a numeric voltage value to the "natural" string representation |
275 | * of its voltage value. The voltage is specified as a rational number's | |
276 | * numerator and denominator. | |
79afc8ca BV |
277 | * |
278 | * E.g. a value of 300000 would be converted to "300mV", 2 to "2V". | |
279 | * | |
e0e15067 BV |
280 | * @param v_p The voltage numerator. |
281 | * @param v_q The voltage denominator. | |
79afc8ca BV |
282 | * |
283 | * @return A g_try_malloc()ed string representation of the voltage value, | |
284 | * or NULL upon errors. The caller is responsible to g_free() the | |
285 | * memory. | |
286 | */ | |
e0e15067 | 287 | SR_API char *sr_voltage_string(uint64_t v_p, uint64_t v_q) |
79afc8ca | 288 | { |
79afc8ca | 289 | int r; |
d5a669a9 | 290 | char *o; |
79afc8ca BV |
291 | |
292 | if (!(o = g_try_malloc0(30 + 1))) { | |
a885ce3e | 293 | sr_err("%s: o malloc failed", __func__); |
79afc8ca BV |
294 | return NULL; |
295 | } | |
296 | ||
e0e15067 BV |
297 | if (v_q == 1000) |
298 | r = snprintf(o, 30, "%" PRIu64 "mV", v_p); | |
299 | else if (v_q == 1) | |
300 | r = snprintf(o, 30, "%" PRIu64 "V", v_p); | |
79afc8ca | 301 | else |
e0e15067 | 302 | r = snprintf(o, 30, "%gV", (float)v_p / (float)v_q); |
79afc8ca BV |
303 | |
304 | if (r < 0) { | |
305 | /* Something went wrong... */ | |
306 | g_free(o); | |
307 | return NULL; | |
308 | } | |
309 | ||
310 | return o; | |
311 | } | |
312 | ||
dfcc0bf9 | 313 | /** |
bf978d35 | 314 | * Parse a trigger specification string. |
dfcc0bf9 | 315 | * |
9c5332d2 UH |
316 | * @param sdi The device instance for which the trigger specification is |
317 | * intended. Must not be NULL. Also, sdi->driver and | |
318 | * sdi->driver->info_get must not be NULL. | |
bf978d35 UH |
319 | * @param triggerstring The string containing the trigger specification for |
320 | * one or more probes of this device. Entries for multiple probes are | |
321 | * comma-separated. Triggers are specified in the form key=value, | |
322 | * where the key is a probe number (or probe name) and the value is | |
323 | * the requested trigger type. Valid trigger types currently | |
324 | * include 'r' (rising edge), 'f' (falling edge), 'c' (any pin value | |
325 | * change), '0' (low value), or '1' (high value). | |
326 | * Example: "1=r,sck=f,miso=0,7=c" | |
44dae539 | 327 | * |
bf978d35 UH |
328 | * @return Pointer to a list of trigger types (strings), or NULL upon errors. |
329 | * The pointer list (if non-NULL) has as many entries as the | |
330 | * respective device has probes (all physically available probes, | |
331 | * not just enabled ones). Entries of the list which don't have | |
332 | * a trigger value set in 'triggerstring' are NULL, the other entries | |
333 | * contain the respective trigger type which is requested for the | |
334 | * respective probe (e.g. "r", "c", and so on). | |
dfcc0bf9 | 335 | */ |
92ae7984 | 336 | SR_API char **sr_parse_triggerstring(const struct sr_dev_inst *sdi, |
1a081ca6 | 337 | const char *triggerstring) |
40f5ddac BV |
338 | { |
339 | GSList *l; | |
003595ac | 340 | GVariant *gvar; |
1afe8989 | 341 | struct sr_probe *probe; |
40f5ddac | 342 | int max_probes, probenum, i; |
b7f578be JH |
343 | char **tokens, **triggerlist, *trigger, *tc; |
344 | const char *trigger_types; | |
40f5ddac BV |
345 | gboolean error; |
346 | ||
92ae7984 | 347 | max_probes = g_slist_length(sdi->probes); |
40f5ddac | 348 | error = FALSE; |
b53738ba UH |
349 | |
350 | if (!(triggerlist = g_try_malloc0(max_probes * sizeof(char *)))) { | |
a885ce3e | 351 | sr_err("%s: triggerlist malloc failed", __func__); |
b53738ba UH |
352 | return NULL; |
353 | } | |
354 | ||
8f996b89 ML |
355 | if (sdi->driver->config_list(SR_CONF_TRIGGER_TYPE, |
356 | &gvar, sdi, NULL) != SR_OK) { | |
a885ce3e | 357 | sr_err("%s: Device doesn't support any triggers.", __func__); |
40f5ddac | 358 | return NULL; |
bf978d35 | 359 | } |
003595ac | 360 | trigger_types = g_variant_get_string(gvar, NULL); |
40f5ddac | 361 | |
31fc1fbc | 362 | tokens = g_strsplit(triggerstring, ",", max_probes); |
40f5ddac | 363 | for (i = 0; tokens[i]; i++) { |
17ff1124 BV |
364 | probenum = -1; |
365 | for (l = sdi->probes; l; l = l->next) { | |
366 | probe = (struct sr_probe *)l->data; | |
367 | if (probe->enabled | |
368 | && !strncmp(probe->name, tokens[i], | |
369 | strlen(probe->name))) { | |
370 | probenum = probe->index; | |
371 | break; | |
40f5ddac | 372 | } |
40f5ddac BV |
373 | } |
374 | ||
31fc1fbc | 375 | if (probenum < 0 || probenum >= max_probes) { |
a885ce3e | 376 | sr_err("Invalid probe."); |
40f5ddac BV |
377 | error = TRUE; |
378 | break; | |
379 | } | |
380 | ||
381 | if ((trigger = strchr(tokens[i], '='))) { | |
382 | for (tc = ++trigger; *tc; tc++) { | |
383 | if (strchr(trigger_types, *tc) == NULL) { | |
a885ce3e | 384 | sr_err("Unsupported trigger " |
0aeb0ccd | 385 | "type '%c'.", *tc); |
40f5ddac BV |
386 | error = TRUE; |
387 | break; | |
388 | } | |
389 | } | |
390 | if (!error) | |
31fc1fbc | 391 | triggerlist[probenum] = g_strdup(trigger); |
40f5ddac BV |
392 | } |
393 | } | |
394 | g_strfreev(tokens); | |
003595ac | 395 | g_variant_unref(gvar); |
40f5ddac BV |
396 | |
397 | if (error) { | |
398 | for (i = 0; i < max_probes; i++) | |
66410a86 | 399 | g_free(triggerlist[i]); |
40f5ddac BV |
400 | g_free(triggerlist); |
401 | triggerlist = NULL; | |
402 | } | |
403 | ||
404 | return triggerlist; | |
405 | } | |
406 | ||
dfcc0bf9 UH |
407 | /** |
408 | * Convert a "natural" string representation of a size value to uint64_t. | |
409 | * | |
410 | * E.g. a value of "3k" or "3 K" would be converted to 3000, a value | |
411 | * of "15M" would be converted to 15000000. | |
412 | * | |
413 | * Value representations other than decimal (such as hex or octal) are not | |
414 | * supported. Only 'k' (kilo), 'm' (mega), 'g' (giga) suffixes are supported. | |
415 | * Spaces (but not other whitespace) between value and suffix are allowed. | |
416 | * | |
417 | * @param sizestring A string containing a (decimal) size value. | |
f64c1414 | 418 | * @param size Pointer to uint64_t which will contain the string's size value. |
dfcc0bf9 | 419 | * |
44dae539 | 420 | * @return SR_OK upon success, SR_ERR upon errors. |
dfcc0bf9 | 421 | */ |
1a081ca6 | 422 | SR_API int sr_parse_sizestring(const char *sizestring, uint64_t *size) |
40f5ddac | 423 | { |
f64c1414 | 424 | int multiplier, done; |
40f5ddac BV |
425 | char *s; |
426 | ||
f64c1414 | 427 | *size = strtoull(sizestring, &s, 10); |
40f5ddac | 428 | multiplier = 0; |
f64c1414 BV |
429 | done = FALSE; |
430 | while (s && *s && multiplier == 0 && !done) { | |
40f5ddac BV |
431 | switch (*s) { |
432 | case ' ': | |
433 | break; | |
434 | case 'k': | |
435 | case 'K': | |
59df0c77 | 436 | multiplier = SR_KHZ(1); |
40f5ddac BV |
437 | break; |
438 | case 'm': | |
439 | case 'M': | |
59df0c77 | 440 | multiplier = SR_MHZ(1); |
40f5ddac BV |
441 | break; |
442 | case 'g': | |
443 | case 'G': | |
59df0c77 | 444 | multiplier = SR_GHZ(1); |
40f5ddac BV |
445 | break; |
446 | default: | |
f64c1414 BV |
447 | done = TRUE; |
448 | s--; | |
40f5ddac BV |
449 | } |
450 | s++; | |
451 | } | |
452 | if (multiplier > 0) | |
f64c1414 | 453 | *size *= multiplier; |
40f5ddac | 454 | |
f64c1414 BV |
455 | if (*s && strcasecmp(s, "Hz")) |
456 | return SR_ERR; | |
457 | ||
458 | return SR_OK; | |
40f5ddac BV |
459 | } |
460 | ||
dfcc0bf9 UH |
461 | /** |
462 | * Convert a "natural" string representation of a time value to an | |
463 | * uint64_t value in milliseconds. | |
464 | * | |
465 | * E.g. a value of "3s" or "3 s" would be converted to 3000, a value | |
466 | * of "15ms" would be converted to 15. | |
467 | * | |
468 | * Value representations other than decimal (such as hex or octal) are not | |
469 | * supported. Only lower-case "s" and "ms" time suffixes are supported. | |
470 | * Spaces (but not other whitespace) between value and suffix are allowed. | |
471 | * | |
472 | * @param timestring A string containing a (decimal) time value. | |
473 | * @return The string's time value as uint64_t, in milliseconds. | |
474 | * | |
6b2d8d3e UH |
475 | * @todo Add support for "m" (minutes) and others. |
476 | * @todo Add support for picoseconds? | |
477 | * @todo Allow both lower-case and upper-case? If no, document it. | |
dfcc0bf9 | 478 | */ |
1a081ca6 | 479 | SR_API uint64_t sr_parse_timestring(const char *timestring) |
40f5ddac BV |
480 | { |
481 | uint64_t time_msec; | |
482 | char *s; | |
483 | ||
6b2d8d3e UH |
484 | /* TODO: Error handling, logging. */ |
485 | ||
40f5ddac BV |
486 | time_msec = strtoull(timestring, &s, 10); |
487 | if (time_msec == 0 && s == timestring) | |
488 | return 0; | |
489 | ||
490 | if (s && *s) { | |
491 | while (*s == ' ') | |
492 | s++; | |
493 | if (!strcmp(s, "s")) | |
494 | time_msec *= 1000; | |
495 | else if (!strcmp(s, "ms")) | |
496 | ; /* redundant */ | |
497 | else | |
498 | return 0; | |
499 | } | |
500 | ||
501 | return time_msec; | |
502 | } | |
4d436e71 | 503 | |
1a081ca6 | 504 | SR_API gboolean sr_parse_boolstring(const char *boolstr) |
4d436e71 GM |
505 | { |
506 | if (!boolstr) | |
507 | return FALSE; | |
508 | ||
993526f8 BV |
509 | if (!g_ascii_strncasecmp(boolstr, "true", 4) || |
510 | !g_ascii_strncasecmp(boolstr, "yes", 3) || | |
511 | !g_ascii_strncasecmp(boolstr, "on", 2) || | |
512 | !g_ascii_strncasecmp(boolstr, "1", 1)) | |
4d436e71 GM |
513 | return TRUE; |
514 | ||
515 | return FALSE; | |
516 | } | |
76f4c610 | 517 | |
76e107d6 | 518 | SR_API int sr_parse_period(const char *periodstr, uint64_t *p, uint64_t *q) |
76f4c610 BV |
519 | { |
520 | char *s; | |
521 | ||
76e107d6 BV |
522 | *p = strtoull(periodstr, &s, 10); |
523 | if (*p == 0 && s == periodstr) | |
76f4c610 BV |
524 | /* No digits found. */ |
525 | return SR_ERR_ARG; | |
526 | ||
527 | if (s && *s) { | |
528 | while (*s == ' ') | |
529 | s++; | |
8c012adb | 530 | if (!strcmp(s, "fs")) |
76e107d6 | 531 | *q = 1000000000000000ULL; |
8c012adb | 532 | else if (!strcmp(s, "ps")) |
76e107d6 | 533 | *q = 1000000000000ULL; |
8c012adb | 534 | else if (!strcmp(s, "ns")) |
76e107d6 | 535 | *q = 1000000000ULL; |
76f4c610 | 536 | else if (!strcmp(s, "us")) |
76e107d6 | 537 | *q = 1000000; |
76f4c610 | 538 | else if (!strcmp(s, "ms")) |
76e107d6 | 539 | *q = 1000; |
76f4c610 | 540 | else if (!strcmp(s, "s")) |
76e107d6 | 541 | *q = 1; |
76f4c610 BV |
542 | else |
543 | /* Must have a time suffix. */ | |
544 | return SR_ERR_ARG; | |
545 | } | |
546 | ||
547 | return SR_OK; | |
548 | } | |
549 | ||
550 | ||
76e107d6 | 551 | SR_API int sr_parse_voltage(const char *voltstr, uint64_t *p, uint64_t *q) |
79afc8ca BV |
552 | { |
553 | char *s; | |
554 | ||
76e107d6 BV |
555 | *p = strtoull(voltstr, &s, 10); |
556 | if (*p == 0 && s == voltstr) | |
79afc8ca BV |
557 | /* No digits found. */ |
558 | return SR_ERR_ARG; | |
559 | ||
560 | if (s && *s) { | |
561 | while (*s == ' ') | |
562 | s++; | |
563 | if (!strcasecmp(s, "mv")) | |
76e107d6 | 564 | *q = 1000L; |
79afc8ca | 565 | else if (!strcasecmp(s, "v")) |
76e107d6 | 566 | *q = 1; |
79afc8ca BV |
567 | else |
568 | /* Must have a base suffix. */ | |
569 | return SR_ERR_ARG; | |
570 | } | |
571 | ||
572 | return SR_OK; | |
573 | } | |
574 | ||
7b870c38 | 575 | /** @} */ |