+++ /dev/null
-/*
- * This file is part of the sigrok project.
- *
- * Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#include <string.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <zip.h>
-#include <glib.h>
-#include <glib/gstdio.h>
-#include "config.h"
-#include "sigrok.h"
-#include "sigrok-internal.h"
-
-extern struct sr_session *session;
-extern SR_PRIV struct sr_dev_plugin session_driver;
-
-/**
- * Load the session from the specified filename.
- *
- * @param filename The name of the session file to load. Must not be NULL.
- *
- * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments,
- * SR_ERR_MALLOC upon memory allocation errors, or SR_ERR upon
- * other errors.
- */
-SR_API int sr_session_load(const char *filename)
-{
- GKeyFile *kf;
- GPtrArray *capturefiles;
- struct zip *archive;
- struct zip_file *zf;
- struct zip_stat zs;
- struct sr_dev *dev;
- struct sr_probe *probe;
- int ret, err, probenum, devcnt, i, j;
- uint64_t tmp_u64, total_probes, enabled_probes, p;
- char **sections, **keys, *metafile, *val, c;
- char probename[SR_MAX_PROBENAME_LEN + 1];
-
- if (!filename) {
- sr_err("session file: %s: filename was NULL", __func__);
- return SR_ERR_ARG;
- }
-
- if (!(archive = zip_open(filename, 0, &err))) {
- sr_dbg("session file: Failed to open session file: zip "
- "error %d", err);
- return SR_ERR;
- }
-
- /* check "version" */
- if (!(zf = zip_fopen(archive, "version", 0))) {
- sr_dbg("session file: Not a sigrok session file.");
- return SR_ERR;
- }
- ret = zip_fread(zf, &c, 1);
- if (ret != 1 || c != '1') {
- sr_dbg("session file: Not a valid sigrok session file.");
- return SR_ERR;
- }
- zip_fclose(zf);
-
- /* read "metadata" */
- if (zip_stat(archive, "metadata", 0, &zs) == -1) {
- sr_dbg("session file: Not a valid sigrok session file.");
- return SR_ERR;
- }
-
- if (!(metafile = g_try_malloc(zs.size))) {
- sr_err("session file: %s: metafile malloc failed", __func__);
- return SR_ERR_MALLOC;
- }
-
- zf = zip_fopen_index(archive, zs.index, 0);
- zip_fread(zf, metafile, zs.size);
- zip_fclose(zf);
-
- kf = g_key_file_new();
- if (!g_key_file_load_from_data(kf, metafile, zs.size, 0, NULL)) {
- sr_dbg("session file: Failed to parse metadata.");
- return SR_ERR;
- }
-
- sr_session_new();
-
- devcnt = 0;
- capturefiles = g_ptr_array_new_with_free_func(g_free);
- sections = g_key_file_get_groups(kf, NULL);
- for (i = 0; sections[i]; i++) {
- if (!strcmp(sections[i], "global"))
- /* nothing really interesting in here yet */
- continue;
- if (!strncmp(sections[i], "device ", 7)) {
- /* device section */
- dev = NULL;
- enabled_probes = 0;
- keys = g_key_file_get_keys(kf, sections[i], NULL, NULL);
- for (j = 0; keys[j]; j++) {
- val = g_key_file_get_string(kf, sections[i], keys[j], NULL);
- if (!strcmp(keys[j], "capturefile")) {
- dev = sr_dev_new(&session_driver, devcnt);
- if (devcnt == 0)
- /* first device, init the plugin */
- dev->plugin->init((char *)filename);
- sr_session_dev_add(dev);
- dev->plugin->dev_config_set(devcnt, SR_HWCAP_CAPTUREFILE, val);
- g_ptr_array_add(capturefiles, val);
- } else if (!strcmp(keys[j], "samplerate")) {
- sr_parse_sizestring(val, &tmp_u64);
- dev->plugin->dev_config_set(devcnt, SR_HWCAP_SAMPLERATE, &tmp_u64);
- } else if (!strcmp(keys[j], "unitsize")) {
- tmp_u64 = strtoull(val, NULL, 10);
- dev->plugin->dev_config_set(devcnt, SR_HWCAP_CAPTURE_UNITSIZE, &tmp_u64);
- } else if (!strcmp(keys[j], "total probes")) {
- total_probes = strtoull(val, NULL, 10);
- dev->plugin->dev_config_set(devcnt, SR_HWCAP_CAPTURE_NUM_PROBES, &total_probes);
- for (p = 0; p < total_probes; p++) {
- snprintf(probename, SR_MAX_PROBENAME_LEN, "%" PRIu64, p);
- sr_dev_probe_add(dev, probename);
- }
- } else if (!strncmp(keys[j], "probe", 5)) {
- if (!dev)
- continue;
- enabled_probes++;
- tmp_u64 = strtoul(keys[j]+5, NULL, 10);
- sr_dev_probe_name(dev, tmp_u64, val);
- } else if (!strncmp(keys[j], "trigger", 7)) {
- probenum = strtoul(keys[j]+7, NULL, 10);
- sr_dev_trigger_set(dev, probenum, val);
- }
- }
- g_strfreev(keys);
- for (p = enabled_probes; p < total_probes; p++) {
- probe = g_slist_nth_data(dev->probes, p);
- probe->enabled = FALSE;
- }
- }
- }
- g_strfreev(sections);
- g_key_file_free(kf);
-
- return SR_OK;
-}
-
-/**
- * Save the current session to the specified file.
- *
- * @param filename The name of the file where to save the current session.
- * Must not be NULL.
- *
- * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, or SR_ERR
- * upon other errors.
- */
-int sr_session_save(const char *filename)
-{
- GSList *l, *p, *d;
- FILE *meta;
- struct sr_dev *dev;
- struct sr_probe *probe;
- struct sr_datastore *ds;
- struct zip *zipfile;
- struct zip_source *versrc, *metasrc, *logicsrc;
- int bufcnt, devcnt, tmpfile, ret, error, probecnt;
- uint64_t samplerate;
- char version[1], rawname[16], metafile[32], *buf, *s;
-
- if (!filename) {
- sr_err("session file: %s: filename was NULL", __func__);
- return SR_ERR_ARG;
- }
-
- /* Quietly delete it first, libzip wants replace ops otherwise. */
- unlink(filename);
- if (!(zipfile = zip_open(filename, ZIP_CREATE, &error)))
- return SR_ERR;
-
- /* "version" */
- version[0] = '1';
- if (!(versrc = zip_source_buffer(zipfile, version, 1, 0)))
- return SR_ERR;
- if (zip_add(zipfile, "version", versrc) == -1) {
- sr_info("session file: error saving version into zipfile: %s",
- zip_strerror(zipfile));
- return SR_ERR;
- }
-
- /* init "metadata" */
- strcpy(metafile, "sigrok-meta-XXXXXX");
- if ((tmpfile = g_mkstemp(metafile)) == -1)
- return SR_ERR;
- close(tmpfile);
- meta = g_fopen(metafile, "wb");
- fprintf(meta, "[global]\n");
- fprintf(meta, "sigrok version = %s\n", PACKAGE_VERSION);
- /* TODO: save protocol decoders used */
-
- /* all datastores in all devices */
- devcnt = 1;
- for (l = session->devs; l; l = l->next) {
- dev = l->data;
- /* metadata */
- fprintf(meta, "[device %d]\n", devcnt);
- if (dev->plugin)
- fprintf(meta, "driver = %s\n", dev->plugin->name);
-
- ds = dev->datastore;
- if (ds) {
- /* metadata */
- fprintf(meta, "capturefile = logic-%d\n", devcnt);
- fprintf(meta, "unitsize = %d\n", ds->ds_unitsize);
- fprintf(meta, "total probes = %d\n", g_slist_length(dev->probes));
- if (sr_dev_has_hwcap(dev, SR_HWCAP_SAMPLERATE)) {
- samplerate = *((uint64_t *) dev->plugin->dev_info_get(
- dev->plugin_index, SR_DI_CUR_SAMPLERATE));
- s = sr_samplerate_string(samplerate);
- fprintf(meta, "samplerate = %s\n", s);
- g_free(s);
- }
- probecnt = 1;
- for (p = dev->probes; p; p = p->next) {
- probe = p->data;
- if (probe->enabled) {
- if (probe->name)
- fprintf(meta, "probe%d = %s\n", probecnt, probe->name);
- if (probe->trigger)
- fprintf(meta, " trigger%d = %s\n", probecnt, probe->trigger);
- probecnt++;
- }
- }
-
- /* dump datastore into logic-n */
- buf = g_try_malloc(ds->num_units * ds->ds_unitsize +
- DATASTORE_CHUNKSIZE);
- if (!buf) {
- sr_err("session file: %s: buf malloc failed",
- __func__);
- return SR_ERR_MALLOC;
- }
-
- bufcnt = 0;
- for (d = ds->chunklist; d; d = d->next) {
- memcpy(buf + bufcnt, d->data,
- DATASTORE_CHUNKSIZE);
- bufcnt += DATASTORE_CHUNKSIZE;
- }
- if (!(logicsrc = zip_source_buffer(zipfile, buf,
- ds->num_units * ds->ds_unitsize, TRUE)))
- return SR_ERR;
- snprintf(rawname, 15, "logic-%d", devcnt);
- if (zip_add(zipfile, rawname, logicsrc) == -1)
- return SR_ERR;
- }
- devcnt++;
- }
- fclose(meta);
-
- if (!(metasrc = zip_source_file(zipfile, metafile, 0, -1)))
- return SR_ERR;
- if (zip_add(zipfile, "metadata", metasrc) == -1)
- return SR_ERR;
-
- if ((ret = zip_close(zipfile)) == -1) {
- sr_info("session file: error saving zipfile: %s",
- zip_strerror(zipfile));
- return SR_ERR;
- }
-
- unlink(metafile);
-
- return SR_OK;
-}
projects / libsigrok.git / blobdiff