2 * This file is part of the libsigrok project.
4 * Copyright (C) 2014 Bert Vermeulen <bert@biot.com>
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.
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.
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/>.
25 #include <glib/gstdio.h>
27 #include <libsigrok/libsigrok.h>
28 #include "libsigrok-internal.h"
30 #define LOG_PREFIX "output/srzip"
38 static int init(struct sr_output *o, GHashTable *options)
40 struct out_context *outc;
44 if (!o->filename || o->filename[0] == '\0') {
45 sr_info("srzip output module requires a file name, cannot save.");
49 outc = g_malloc0(sizeof(struct out_context));
50 outc->filename = g_strdup(o->filename);
56 static int zip_create(const struct sr_output *o)
58 struct out_context *outc;
60 struct zip_source *versrc, *metasrc;
61 struct sr_channel *ch;
68 guint logic_channels = 0;
72 if (outc->samplerate == 0 && sr_config_get(o->sdi->driver, o->sdi, NULL,
73 SR_CONF_SAMPLERATE, &gvar) == SR_OK) {
74 outc->samplerate = g_variant_get_uint64(gvar);
75 g_variant_unref(gvar);
78 /* Quietly delete it first, libzip wants replace ops otherwise. */
79 g_unlink(outc->filename);
80 zipfile = zip_open(outc->filename, ZIP_CREATE, NULL);
85 versrc = zip_source_buffer(zipfile, "2", 1, FALSE);
86 if (zip_add(zipfile, "version", versrc) < 0) {
87 sr_err("Error saving version into zipfile: %s",
88 zip_strerror(zipfile));
89 zip_source_free(versrc);
95 meta = g_key_file_new();
97 g_key_file_set_string(meta, "global", "sigrok version",
98 SR_PACKAGE_VERSION_STRING);
100 devgroup = "device 1";
101 g_key_file_set_string(meta, devgroup, "capturefile", "logic-1");
103 s = sr_samplerate_string(outc->samplerate);
104 g_key_file_set_string(meta, devgroup, "samplerate", s);
107 for (l = o->sdi->channels; l; l = l->next) {
109 if (ch->type == SR_CHANNEL_LOGIC)
113 g_key_file_set_integer(meta, devgroup, "total probes", logic_channels);
115 for (l = o->sdi->channels; l; l = l->next) {
117 if (ch->enabled && ch->type == SR_CHANNEL_LOGIC) {
118 s = g_strdup_printf("probe%d", ch->index + 1);
119 g_key_file_set_string(meta, devgroup, s, ch->name);
124 metabuf = g_key_file_to_data(meta, &metalen, NULL);
125 g_key_file_free(meta);
127 metasrc = zip_source_buffer(zipfile, metabuf, metalen, FALSE);
128 if (zip_add(zipfile, "metadata", metasrc) < 0) {
129 sr_err("Error saving metadata into zipfile: %s",
130 zip_strerror(zipfile));
131 zip_source_free(metasrc);
132 zip_discard(zipfile);
137 if (zip_close(zipfile) < 0) {
138 sr_err("Error saving zipfile: %s", zip_strerror(zipfile));
139 zip_discard(zipfile);
148 static int zip_append(const struct sr_output *o, unsigned char *buf,
149 int unitsize, int length)
151 struct out_context *outc;
153 struct zip_source *logicsrc;
154 int64_t i, num_files;
156 struct zip_source *metasrc;
160 const char *entry_name;
164 unsigned int next_chunk_num;
167 if (!(archive = zip_open(outc->filename, 0, NULL)))
170 if (zip_stat(archive, "metadata", 0, &zs) < 0) {
171 sr_err("Failed to open metadata: %s", zip_strerror(archive));
172 zip_discard(archive);
175 kf = sr_sessionfile_read_metadata(archive, &zs);
177 zip_discard(archive);
181 * If the file was only initialized but doesn't yet have any
182 * data it in, it won't have a unitsize field in metadata yet.
186 if (!g_key_file_has_key(kf, "device 1", "unitsize", &error)) {
187 if (error && error->code != G_KEY_FILE_ERROR_KEY_NOT_FOUND) {
188 sr_err("Failed to check unitsize key: %s", error->message);
191 zip_discard(archive);
194 g_clear_error(&error);
196 /* Add unitsize field. */
197 g_key_file_set_integer(kf, "device 1", "unitsize", unitsize);
198 metabuf = g_key_file_to_data(kf, &metalen, NULL);
199 metasrc = zip_source_buffer(archive, metabuf, metalen, FALSE);
201 if (zip_replace(archive, zs.index, metasrc) < 0) {
202 sr_err("Failed to replace metadata: %s",
203 zip_strerror(archive));
205 zip_source_free(metasrc);
206 zip_discard(archive);
214 num_files = zip_get_num_entries(archive, 0);
215 for (i = 0; i < num_files; i++) {
216 entry_name = zip_get_name(archive, i, 0);
217 if (!entry_name || strncmp(entry_name, "logic-1", 7) != 0)
219 if (entry_name[7] == '\0') {
220 /* This file has no extra chunks, just a single "logic-1".
221 * Rename it to "logic-1-1" * and continue with chunk 2. */
222 if (zip_rename(archive, i, "logic-1-1") < 0) {
223 sr_err("Failed to rename 'logic-1' to 'logic-1-1': %s",
224 zip_strerror(archive));
225 zip_discard(archive);
231 } else if (entry_name[7] == '-') {
232 chunk_num = g_ascii_strtoull(entry_name + 8, NULL, 10);
233 if (chunk_num < G_MAXINT && chunk_num >= next_chunk_num)
234 next_chunk_num = chunk_num + 1;
238 if (length % unitsize != 0) {
239 sr_warn("Chunk size %d not a multiple of the"
240 " unit size %d.", length, unitsize);
242 logicsrc = zip_source_buffer(archive, buf, length, FALSE);
243 chunkname = g_strdup_printf("logic-1-%u", next_chunk_num);
244 i = zip_add(archive, chunkname, logicsrc);
247 sr_err("Failed to add chunk 'logic-1-%u': %s",
248 next_chunk_num, zip_strerror(archive));
249 zip_source_free(logicsrc);
250 zip_discard(archive);
254 if (zip_close(archive) < 0) {
255 sr_err("Error saving session file: %s", zip_strerror(archive));
256 zip_discard(archive);
265 static int receive(const struct sr_output *o, const struct sr_datafeed_packet *packet,
268 struct out_context *outc;
269 const struct sr_datafeed_meta *meta;
270 const struct sr_datafeed_logic *logic;
271 const struct sr_config *src;
277 if (!o || !o->sdi || !(outc = o->priv))
280 switch (packet->type) {
282 meta = packet->payload;
283 for (l = meta->config; l; l = l->next) {
285 if (src->key != SR_CONF_SAMPLERATE)
287 outc->samplerate = g_variant_get_uint64(src->data);
291 if (!outc->zip_created) {
292 if ((ret = zip_create(o)) != SR_OK)
294 outc->zip_created = TRUE;
296 logic = packet->payload;
297 ret = zip_append(o, logic->data, logic->unitsize, logic->length);
306 static struct sr_option options[] = {
310 static const struct sr_option *get_options(void)
313 options[0].def = g_variant_ref_sink(g_variant_new_string(""));
318 static int cleanup(struct sr_output *o)
320 struct out_context *outc;
323 g_variant_unref(options[0].def);
324 g_free(outc->filename);
331 SR_PRIV struct sr_output_module output_srzip = {
334 .desc = "srzip session file",
335 .exts = (const char*[]){"sr", NULL},
336 .flags = SR_OUTPUT_INTERNAL_IO_HANDLING,
337 .options = get_options,