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Commit | Line | Data |
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7d658874 | 1 | /* |
50985c20 | 2 | * This file is part of the libsigrok project. |
7d658874 | 3 | * |
13d8e03c | 4 | * Copyright (C) 2013 Bert Vermeulen <bert@biot.com> |
7d658874 BV |
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 3 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, see <http://www.gnu.org/licenses/>. | |
18 | */ | |
19 | ||
20 | #include <string.h> | |
21 | #include <stdlib.h> | |
22 | #include <unistd.h> | |
23 | #include <zip.h> | |
5f9c4c8a BV |
24 | #include <sys/types.h> |
25 | #include <sys/stat.h> | |
26 | #include <errno.h> | |
7d658874 | 27 | #include <glib.h> |
3bbd9849 | 28 | #include <glib/gstdio.h> |
545f9786 | 29 | #include "config.h" /* Needed for PACKAGE_VERSION and others. */ |
45c59c8b BV |
30 | #include "libsigrok.h" |
31 | #include "libsigrok-internal.h" | |
7d658874 | 32 | |
29a27196 UH |
33 | /* Message logging helpers with subsystem-specific prefix string. */ |
34 | #define LOG_PREFIX "session-file: " | |
35 | #define sr_log(l, s, args...) sr_log(l, LOG_PREFIX s, ## args) | |
36 | #define sr_spew(s, args...) sr_spew(LOG_PREFIX s, ## args) | |
37 | #define sr_dbg(s, args...) sr_dbg(LOG_PREFIX s, ## args) | |
38 | #define sr_info(s, args...) sr_info(LOG_PREFIX s, ## args) | |
39 | #define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args) | |
40 | #define sr_err(s, args...) sr_err(LOG_PREFIX s, ## args) | |
a885ce3e | 41 | |
393fb9cb UH |
42 | /** |
43 | * @file | |
44 | * | |
45 | * Loading and saving libsigrok session files. | |
46 | */ | |
47 | ||
7b870c38 | 48 | /** |
777e2035 | 49 | * @addtogroup grp_session |
7b870c38 UH |
50 | * |
51 | * @{ | |
52 | */ | |
53 | ||
2872d21e | 54 | extern struct sr_session *session; |
c09f0b57 | 55 | extern SR_PRIV struct sr_dev_driver session_driver; |
7d658874 | 56 | |
72a08bcc | 57 | /** @private */ |
f438e0c9 | 58 | SR_PRIV int sr_sessionfile_check(const char *filename) |
7d658874 | 59 | { |
5f9c4c8a | 60 | struct stat st; |
7d658874 BV |
61 | struct zip *archive; |
62 | struct zip_file *zf; | |
63 | struct zip_stat zs; | |
f438e0c9 BV |
64 | int version, ret; |
65 | char s[11]; | |
7d658874 | 66 | |
f438e0c9 | 67 | if (!filename) |
9f45fb3a | 68 | return SR_ERR_ARG; |
9f45fb3a | 69 | |
5f9c4c8a BV |
70 | if (stat(filename, &st) == -1) { |
71 | sr_err("Couldn't stat %s: %s", filename, strerror(errno)); | |
72 | return SR_ERR; | |
73 | } | |
74 | ||
f438e0c9 BV |
75 | if (!(archive = zip_open(filename, 0, &ret))) |
76 | /* No logging: this can be used just to check if it's | |
77 | * a sigrok session file or not. */ | |
7d658874 | 78 | return SR_ERR; |
7d658874 BV |
79 | |
80 | /* check "version" */ | |
c1864d55 | 81 | version = 0; |
7d658874 | 82 | if (!(zf = zip_fopen(archive, "version", 0))) { |
f438e0c9 | 83 | sr_dbg("Not a sigrok session file: no version found."); |
7d658874 BV |
84 | return SR_ERR; |
85 | } | |
f438e0c9 | 86 | if ((ret = zip_fread(zf, s, 10)) == -1) |
7d658874 | 87 | return SR_ERR; |
7d658874 | 88 | zip_fclose(zf); |
c1864d55 BV |
89 | s[ret] = 0; |
90 | version = strtoull(s, NULL, 10); | |
91 | if (version != 1) { | |
f438e0c9 | 92 | sr_dbg("Cannot handle sigrok session file version %d.", version); |
c1864d55 BV |
93 | return SR_ERR; |
94 | } | |
7d658874 BV |
95 | |
96 | /* read "metadata" */ | |
97 | if (zip_stat(archive, "metadata", 0, &zs) == -1) { | |
a885ce3e | 98 | sr_dbg("Not a valid sigrok session file."); |
7d658874 BV |
99 | return SR_ERR; |
100 | } | |
b53738ba | 101 | |
f438e0c9 BV |
102 | return SR_OK; |
103 | } | |
104 | ||
105 | /** | |
106 | * Load the session from the specified filename. | |
107 | * | |
108 | * @param filename The name of the session file to load. Must not be NULL. | |
109 | * | |
110 | * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, | |
111 | * SR_ERR_MALLOC upon memory allocation errors, or SR_ERR upon | |
112 | * other errors. | |
113 | */ | |
114 | SR_API int sr_session_load(const char *filename) | |
115 | { | |
116 | GKeyFile *kf; | |
117 | GPtrArray *capturefiles; | |
118 | struct zip *archive; | |
119 | struct zip_file *zf; | |
120 | struct zip_stat zs; | |
121 | struct sr_dev_inst *sdi; | |
122 | struct sr_probe *probe; | |
123 | int ret, probenum, devcnt, i, j; | |
124 | uint64_t tmp_u64, total_probes, enabled_probes, p; | |
125 | char **sections, **keys, *metafile, *val; | |
126 | char probename[SR_MAX_PROBENAME_LEN + 1]; | |
127 | ||
128 | if ((ret = sr_sessionfile_check(filename)) != SR_OK) | |
129 | return ret; | |
130 | ||
131 | if (!(archive = zip_open(filename, 0, &ret))) | |
132 | return SR_ERR; | |
133 | ||
134 | if (zip_stat(archive, "metadata", 0, &zs) == -1) | |
135 | return SR_ERR; | |
136 | ||
b53738ba | 137 | if (!(metafile = g_try_malloc(zs.size))) { |
a885ce3e | 138 | sr_err("%s: metafile malloc failed", __func__); |
b53738ba UH |
139 | return SR_ERR_MALLOC; |
140 | } | |
141 | ||
7d658874 BV |
142 | zf = zip_fopen_index(archive, zs.index, 0); |
143 | zip_fread(zf, metafile, zs.size); | |
144 | zip_fclose(zf); | |
145 | ||
146 | kf = g_key_file_new(); | |
147 | if (!g_key_file_load_from_data(kf, metafile, zs.size, 0, NULL)) { | |
a885ce3e | 148 | sr_dbg("Failed to parse metadata."); |
7d658874 BV |
149 | return SR_ERR; |
150 | } | |
151 | ||
2285cf9b | 152 | sr_session_new(); |
7d658874 BV |
153 | |
154 | devcnt = 0; | |
155 | capturefiles = g_ptr_array_new_with_free_func(g_free); | |
156 | sections = g_key_file_get_groups(kf, NULL); | |
157 | for (i = 0; sections[i]; i++) { | |
158 | if (!strcmp(sections[i], "global")) | |
159 | /* nothing really interesting in here yet */ | |
160 | continue; | |
161 | if (!strncmp(sections[i], "device ", 7)) { | |
162 | /* device section */ | |
4d684427 | 163 | sdi = NULL; |
003595ac | 164 | enabled_probes = total_probes = 0; |
7d658874 BV |
165 | keys = g_key_file_get_keys(kf, sections[i], NULL, NULL); |
166 | for (j = 0; keys[j]; j++) { | |
167 | val = g_key_file_get_string(kf, sections[i], keys[j], NULL); | |
168 | if (!strcmp(keys[j], "capturefile")) { | |
4d684427 BV |
169 | sdi = sr_dev_inst_new(devcnt, SR_ST_ACTIVE, NULL, NULL, NULL); |
170 | sdi->driver = &session_driver; | |
7d658874 | 171 | if (devcnt == 0) |
c09f0b57 | 172 | /* first device, init the driver */ |
44fc870c | 173 | sdi->driver->init(NULL); |
bd7bfe8c | 174 | sr_dev_open(sdi); |
4d684427 | 175 | sr_session_dev_add(sdi); |
003595ac | 176 | sdi->driver->config_set(SR_CONF_SESSIONFILE, |
8f996b89 | 177 | g_variant_new_string(filename), sdi, NULL); |
003595ac | 178 | sdi->driver->config_set(SR_CONF_CAPTUREFILE, |
8f996b89 | 179 | g_variant_new_string(val), sdi, NULL); |
7d658874 BV |
180 | g_ptr_array_add(capturefiles, val); |
181 | } else if (!strcmp(keys[j], "samplerate")) { | |
f64c1414 | 182 | sr_parse_sizestring(val, &tmp_u64); |
003595ac | 183 | sdi->driver->config_set(SR_CONF_SAMPLERATE, |
8f996b89 | 184 | g_variant_new_uint64(tmp_u64), sdi, NULL); |
7d658874 BV |
185 | } else if (!strcmp(keys[j], "unitsize")) { |
186 | tmp_u64 = strtoull(val, NULL, 10); | |
003595ac | 187 | sdi->driver->config_set(SR_CONF_CAPTURE_UNITSIZE, |
8f996b89 | 188 | g_variant_new_uint64(tmp_u64), sdi, NULL); |
7d658874 BV |
189 | } else if (!strcmp(keys[j], "total probes")) { |
190 | total_probes = strtoull(val, NULL, 10); | |
003595ac | 191 | sdi->driver->config_set(SR_CONF_CAPTURE_NUM_PROBES, |
8f996b89 | 192 | g_variant_new_uint64(total_probes), sdi, NULL); |
464d12c7 KS |
193 | for (p = 0; p < total_probes; p++) { |
194 | snprintf(probename, SR_MAX_PROBENAME_LEN, "%" PRIu64, p); | |
fb381e4d | 195 | if (!(probe = sr_probe_new(p, SR_PROBE_LOGIC, TRUE, |
4d684427 BV |
196 | probename))) |
197 | return SR_ERR; | |
198 | sdi->probes = g_slist_append(sdi->probes, probe); | |
464d12c7 | 199 | } |
7d658874 | 200 | } else if (!strncmp(keys[j], "probe", 5)) { |
4d684427 | 201 | if (!sdi) |
7d658874 BV |
202 | continue; |
203 | enabled_probes++; | |
204 | tmp_u64 = strtoul(keys[j]+5, NULL, 10); | |
fb381e4d BV |
205 | /* sr_session_save() */ |
206 | sr_dev_probe_name_set(sdi, tmp_u64 - 1, val); | |
7d658874 BV |
207 | } else if (!strncmp(keys[j], "trigger", 7)) { |
208 | probenum = strtoul(keys[j]+7, NULL, 10); | |
4d684427 | 209 | sr_dev_trigger_set(sdi, probenum, val); |
7d658874 BV |
210 | } |
211 | } | |
212 | g_strfreev(keys); | |
fb381e4d | 213 | /* Disable probes not specifically listed. */ |
003595ac BV |
214 | if (total_probes) |
215 | for (p = enabled_probes; p < total_probes; p++) | |
216 | sr_dev_probe_enable(sdi, p, FALSE); | |
7d658874 | 217 | } |
4d684427 | 218 | devcnt++; |
7d658874 BV |
219 | } |
220 | g_strfreev(sections); | |
221 | g_key_file_free(kf); | |
222 | ||
223 | return SR_OK; | |
224 | } | |
225 | ||
9f45fb3a UH |
226 | /** |
227 | * Save the current session to the specified file. | |
228 | * | |
18bc2704 | 229 | * @param filename The name of the filename to save the current session as. |
9f45fb3a | 230 | * Must not be NULL. |
056be071 | 231 | * @param sdi The device instance from which the data was captured. |
18bc2704 BV |
232 | * @param buf The data to be saved. |
233 | * @param unitsize The number of bytes per sample. | |
234 | * @param units The number of samples. | |
9f45fb3a UH |
235 | * |
236 | * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, or SR_ERR | |
237 | * upon other errors. | |
238 | */ | |
18bc2704 BV |
239 | SR_API int sr_session_save(const char *filename, const struct sr_dev_inst *sdi, |
240 | unsigned char *buf, int unitsize, int units) | |
7d658874 | 241 | { |
18bc2704 | 242 | GSList *l; |
003595ac | 243 | GVariant *gvar; |
7d658874 | 244 | FILE *meta; |
1afe8989 | 245 | struct sr_probe *probe; |
7d658874 BV |
246 | struct zip *zipfile; |
247 | struct zip_source *versrc, *metasrc, *logicsrc; | |
18bc2704 | 248 | int tmpfile, ret, probecnt; |
003595ac | 249 | uint64_t samplerate; |
18bc2704 | 250 | char version[1], rawname[16], metafile[32], *s; |
7d658874 | 251 | |
9f45fb3a | 252 | if (!filename) { |
a885ce3e | 253 | sr_err("%s: filename was NULL", __func__); |
9f45fb3a UH |
254 | return SR_ERR_ARG; |
255 | } | |
256 | ||
7d658874 | 257 | /* Quietly delete it first, libzip wants replace ops otherwise. */ |
4a1b18f8 | 258 | unlink(filename); |
ebc34738 | 259 | if (!(zipfile = zip_open(filename, ZIP_CREATE, &ret))) |
7d658874 | 260 | return SR_ERR; |
7d658874 BV |
261 | |
262 | /* "version" */ | |
263 | version[0] = '1'; | |
264 | if (!(versrc = zip_source_buffer(zipfile, version, 1, 0))) | |
265 | return SR_ERR; | |
266 | if (zip_add(zipfile, "version", versrc) == -1) { | |
a885ce3e | 267 | sr_info("error saving version into zipfile: %s", |
b08024a8 | 268 | zip_strerror(zipfile)); |
7d658874 BV |
269 | return SR_ERR; |
270 | } | |
271 | ||
272 | /* init "metadata" */ | |
273 | strcpy(metafile, "sigrok-meta-XXXXXX"); | |
274 | if ((tmpfile = g_mkstemp(metafile)) == -1) | |
275 | return SR_ERR; | |
276 | close(tmpfile); | |
868d8cef | 277 | meta = g_fopen(metafile, "wb"); |
7d658874 BV |
278 | fprintf(meta, "[global]\n"); |
279 | fprintf(meta, "sigrok version = %s\n", PACKAGE_VERSION); | |
7d658874 | 280 | |
056be071 BV |
281 | /* metadata */ |
282 | fprintf(meta, "[device 1]\n"); | |
283 | if (sdi->driver) | |
284 | fprintf(meta, "driver = %s\n", sdi->driver->name); | |
7d658874 | 285 | |
056be071 BV |
286 | /* metadata */ |
287 | fprintf(meta, "capturefile = logic-1\n"); | |
18bc2704 | 288 | fprintf(meta, "unitsize = %d\n", unitsize); |
056be071 | 289 | fprintf(meta, "total probes = %d\n", g_slist_length(sdi->probes)); |
4d15e5c9 | 290 | if (sr_dev_has_option(sdi, SR_CONF_SAMPLERATE)) { |
8f996b89 ML |
291 | if (sr_config_get(sdi->driver, sdi, NULL, |
292 | SR_CONF_SAMPLERATE, &gvar) == SR_OK) { | |
003595ac BV |
293 | samplerate = g_variant_get_uint64(gvar); |
294 | s = sr_samplerate_string(samplerate); | |
056be071 BV |
295 | fprintf(meta, "samplerate = %s\n", s); |
296 | g_free(s); | |
003595ac | 297 | g_variant_unref(gvar); |
056be071 BV |
298 | } |
299 | } | |
300 | probecnt = 1; | |
301 | for (l = sdi->probes; l; l = l->next) { | |
302 | probe = l->data; | |
303 | if (probe->enabled) { | |
304 | if (probe->name) | |
305 | fprintf(meta, "probe%d = %s\n", probecnt, probe->name); | |
306 | if (probe->trigger) | |
307 | fprintf(meta, " trigger%d = %s\n", probecnt, probe->trigger); | |
308 | probecnt++; | |
309 | } | |
310 | } | |
7d658874 | 311 | |
056be071 | 312 | if (!(logicsrc = zip_source_buffer(zipfile, buf, |
18bc2704 | 313 | units * unitsize, FALSE))) |
056be071 BV |
314 | return SR_ERR; |
315 | snprintf(rawname, 15, "logic-1"); | |
316 | if (zip_add(zipfile, rawname, logicsrc) == -1) | |
317 | return SR_ERR; | |
7d658874 BV |
318 | fclose(meta); |
319 | ||
320 | if (!(metasrc = zip_source_file(zipfile, metafile, 0, -1))) | |
321 | return SR_ERR; | |
322 | if (zip_add(zipfile, "metadata", metasrc) == -1) | |
323 | return SR_ERR; | |
324 | ||
325 | if ((ret = zip_close(zipfile)) == -1) { | |
a885ce3e | 326 | sr_info("error saving zipfile: %s", zip_strerror(zipfile)); |
7d658874 BV |
327 | return SR_ERR; |
328 | } | |
329 | ||
330 | unlink(metafile); | |
331 | ||
332 | return SR_OK; | |
333 | } | |
7b870c38 | 334 | |
f438e0c9 BV |
335 | /** |
336 | * Append data to an existing session file. | |
337 | * | |
338 | * @param filename The name of the filename to append to. Must not be NULL. | |
339 | * @param buf The data to be appended. | |
340 | * @param unitsize The number of bytes per sample. | |
341 | * @param units The number of samples. | |
342 | * | |
343 | * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, or SR_ERR | |
344 | * upon other errors. | |
345 | */ | |
346 | SR_API int sr_session_append(const char *filename, unsigned char *buf, | |
347 | int unitsize, int units) | |
348 | { | |
349 | struct zip *archive; | |
350 | struct zip_source *logicsrc; | |
351 | zip_int64_t num_files; | |
352 | int chunk_num, next_chunk_num, ret, i; | |
353 | const char *entry_name; | |
354 | char chunkname[16]; | |
355 | ||
356 | if ((ret = sr_sessionfile_check(filename)) != SR_OK) | |
357 | return ret; | |
358 | ||
359 | if (!(archive = zip_open(filename, 0, &ret))) | |
360 | return SR_ERR; | |
361 | ||
362 | next_chunk_num = 1; | |
363 | num_files = zip_get_num_entries(archive, 0); | |
364 | for (i = 0; i < num_files; i++) { | |
365 | entry_name = zip_get_name(archive, i, 0); | |
366 | if (strncmp(entry_name, "logic-1", 7)) | |
367 | continue; | |
368 | if (strlen(entry_name) == 7) { | |
369 | /* This file has no extra chunks, just a single "logic-1". | |
370 | * Rename it to "logic-1-1" * and continue with chunk 2. */ | |
371 | if (zip_rename(archive, i, "logic-1-1") == -1) { | |
372 | sr_err("Failed to rename 'logic-1' to 'logic-1-1'."); | |
373 | return SR_ERR; | |
374 | } | |
375 | next_chunk_num = 2; | |
376 | break; | |
377 | } else if (strlen(entry_name) > 8 && entry_name[7] == '-') { | |
378 | chunk_num = strtoull(entry_name + 8, NULL, 10); | |
379 | if (chunk_num >= next_chunk_num) | |
380 | next_chunk_num = chunk_num + 1; | |
381 | } | |
382 | } | |
383 | snprintf(chunkname, 15, "logic-1-%d", next_chunk_num); | |
384 | if (!(logicsrc = zip_source_buffer(archive, buf, units * unitsize, FALSE))) | |
385 | return SR_ERR; | |
386 | if (zip_add(archive, chunkname, logicsrc) == -1) | |
387 | return SR_ERR; | |
388 | if ((ret = zip_close(archive)) == -1) { | |
389 | sr_info("error saving session file: %s", zip_strerror(archive)); | |
390 | return SR_ERR; | |
391 | } | |
392 | ||
393 | return SR_OK; | |
394 | } | |
395 | ||
7b870c38 | 396 | /** @} */ |