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/>.
26 #include <glib/gstdio.h>
28 #include <libsigrok/libsigrok.h>
29 #include "libsigrok-internal.h"
31 #define LOG_PREFIX "output/srzip"
39 static int init(struct sr_output *o, GHashTable *options)
41 struct out_context *outc;
45 if (strlen(o->filename) == 0) {
46 sr_info("srzip output module requires a file name, cannot save.");
50 outc = g_malloc0(sizeof(struct out_context));
51 outc->filename = g_strdup(o->filename);
57 static int zip_create(const struct sr_output *o)
59 struct out_context *outc;
60 struct sr_channel *ch;
63 struct zip_source *versrc, *metasrc;
67 char version[1], metafile[32], *s;
70 if (outc->samplerate == 0) {
71 if (sr_config_get(o->sdi->driver, o->sdi, NULL, SR_CONF_SAMPLERATE,
73 outc->samplerate = g_variant_get_uint64(gvar);
74 g_variant_unref(gvar);
78 /* Quietly delete it first, libzip wants replace ops otherwise. */
79 unlink(outc->filename);
80 if (!(zipfile = zip_open(outc->filename, ZIP_CREATE, &ret)))
85 if (!(versrc = zip_source_buffer(zipfile, version, 1, 0)))
87 if (zip_add(zipfile, "version", versrc) == -1) {
88 sr_info("Error saving version into zipfile: %s.",
89 zip_strerror(zipfile));
94 strcpy(metafile, "sigrok-meta-XXXXXX");
95 if ((tmpfile = g_mkstemp(metafile)) == -1)
98 meta = g_fopen(metafile, "wb");
99 fprintf(meta, "[global]\n");
100 fprintf(meta, "sigrok version = %s\n", SR_PACKAGE_VERSION_STRING);
101 fprintf(meta, "[device 1]\ncapturefile = logic-1\n");
102 fprintf(meta, "total probes = %d\n", g_slist_length(o->sdi->channels));
103 s = sr_samplerate_string(outc->samplerate);
104 fprintf(meta, "samplerate = %s\n", s);
107 for (l = o->sdi->channels; l; l = l->next) {
109 if (ch->type != SR_CHANNEL_LOGIC)
113 fprintf(meta, "probe%d = %s\n", ch->index + 1, ch->name);
117 if (!(metasrc = zip_source_file(zipfile, metafile, 0, -1))) {
121 if (zip_add(zipfile, "metadata", metasrc) == -1) {
126 if ((ret = zip_close(zipfile)) == -1) {
127 sr_info("Error saving zipfile: %s.", zip_strerror(zipfile));
137 static int zip_append(const struct sr_output *o, unsigned char *buf,
138 int unitsize, int length)
140 struct out_context *outc;
142 struct zip_source *logicsrc;
143 zip_int64_t num_files;
146 struct zip_source *metasrc;
150 int chunk_num, next_chunk_num, tmpfile, ret, i;
151 const char *entry_name;
152 char *metafile, tmpname[32], chunkname[16];
155 if (!(archive = zip_open(outc->filename, 0, &ret)))
158 if (zip_stat(archive, "metadata", 0, &zs) == -1)
161 metafile = g_malloc(zs.size);
162 zf = zip_fopen_index(archive, zs.index, 0);
163 zip_fread(zf, metafile, zs.size);
167 * If the file was only initialized but doesn't yet have any
168 * data it in, it won't have a unitsize field in metadata yet.
171 kf = g_key_file_new();
172 if (!g_key_file_load_from_data(kf, metafile, zs.size, 0, &error)) {
173 sr_err("Failed to parse metadata: %s.", error->message);
178 if (!g_key_file_has_key(kf, "device 1", "unitsize", &error)) {
179 if (error && error->code != G_KEY_FILE_ERROR_KEY_NOT_FOUND) {
180 sr_err("Failed to check unitsize key: %s", error ? error->message : "?");
183 /* Add unitsize field. */
184 g_key_file_set_integer(kf, "device 1", "unitsize", unitsize);
185 metafile = g_key_file_to_data(kf, &len, &error);
186 strcpy(tmpname, "sigrok-meta-XXXXXX");
187 if ((tmpfile = g_mkstemp(tmpname)) == -1)
189 if (write(tmpfile, metafile, len) < 0) {
190 sr_dbg("Failed to create new metadata: %s", g_strerror(errno));
196 if (!(metasrc = zip_source_file(archive, tmpname, 0, -1))) {
197 sr_err("Failed to create zip source for metadata.");
202 if (zip_replace(archive, zs.index, metasrc) == -1) {
203 sr_err("Failed to replace metadata file.");
213 num_files = zip_get_num_entries(archive, 0);
214 for (i = 0; i < num_files; i++) {
215 entry_name = zip_get_name(archive, i, 0);
216 if (strncmp(entry_name, "logic-1", 7))
218 if (strlen(entry_name) == 7) {
219 /* This file has no extra chunks, just a single "logic-1".
220 * Rename it to "logic-1-1" * and continue with chunk 2. */
221 if (zip_rename(archive, i, "logic-1-1") == -1) {
222 sr_err("Failed to rename 'logic-1' to 'logic-1-1'.");
228 } else if (strlen(entry_name) > 8 && entry_name[7] == '-') {
229 chunk_num = strtoull(entry_name + 8, NULL, 10);
230 if (chunk_num >= next_chunk_num)
231 next_chunk_num = chunk_num + 1;
234 snprintf(chunkname, 15, "logic-1-%d", next_chunk_num);
235 if (!(logicsrc = zip_source_buffer(archive, buf, length, FALSE))) {
239 if (zip_add(archive, chunkname, logicsrc) == -1) {
243 if ((ret = zip_close(archive)) == -1) {
244 sr_info("error saving session file: %s", zip_strerror(archive));
253 static int receive(const struct sr_output *o, const struct sr_datafeed_packet *packet,
256 struct out_context *outc;
257 const struct sr_datafeed_meta *meta;
258 const struct sr_datafeed_logic *logic;
259 const struct sr_config *src;
265 if (!o || !o->sdi || !(outc = o->priv))
268 switch (packet->type) {
270 meta = packet->payload;
271 for (l = meta->config; l; l = l->next) {
273 if (src->key != SR_CONF_SAMPLERATE)
275 outc->samplerate = g_variant_get_uint64(src->data);
279 if (!outc->zip_created) {
280 if ((ret = zip_create(o)) != SR_OK)
282 outc->zip_created = TRUE;
284 logic = packet->payload;
285 ret = zip_append(o, logic->data, logic->unitsize, logic->length);
294 static int cleanup(struct sr_output *o)
296 struct out_context *outc;
299 g_free(outc->filename);
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 SR_PRIV struct sr_output_module output_srzip = {
321 .desc = "srzip session file",
322 .exts = (const char*[]){"sr", NULL},
323 .flags = SR_OUTPUT_INTERNAL_IO_HANDLING,
324 .options = get_options,