extern struct sr_session *session;
extern SR_PRIV struct sr_dev_driver 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)
+SR_PRIV int sr_sessionfile_check(const char *filename)
{
- GKeyFile *kf;
- GPtrArray *capturefiles;
struct zip *archive;
struct zip_file *zf;
struct zip_stat zs;
- struct sr_dev_inst *sdi;
- struct sr_probe *probe;
- int ret, probenum, devcnt, version, i, j;
- uint64_t tmp_u64, total_probes, enabled_probes, p;
- char **sections, **keys, *metafile, *val, s[11];
- char probename[SR_MAX_PROBENAME_LEN + 1];
+ int version, ret;
+ char s[11];
- if (!filename) {
- sr_err("%s: filename was NULL", __func__);
+ if (!filename)
return SR_ERR_ARG;
- }
- if (!(archive = zip_open(filename, 0, &ret))) {
- sr_dbg("Failed to open session file: zip error %d", ret);
+ if (!(archive = zip_open(filename, 0, &ret)))
+ /* No logging: this can be used just to check if it's
+ * a sigrok session file or not. */
return SR_ERR;
- }
/* check "version" */
version = 0;
if (!(zf = zip_fopen(archive, "version", 0))) {
- sr_dbg("Not a sigrok session file.");
+ sr_dbg("Not a sigrok session file: no version found.");
return SR_ERR;
}
- if ((ret = zip_fread(zf, s, 10)) == -1) {
- sr_dbg("Not a valid sigrok session file.");
+ if ((ret = zip_fread(zf, s, 10)) == -1)
return SR_ERR;
- }
zip_fclose(zf);
s[ret] = 0;
version = strtoull(s, NULL, 10);
if (version != 1) {
- sr_dbg("Not a valid sigrok session file version.");
+ sr_dbg("Cannot handle sigrok session file version %d.", version);
return SR_ERR;
}
return SR_ERR;
}
+ return SR_OK;
+}
+
+/**
+ * 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_inst *sdi;
+ struct sr_probe *probe;
+ int ret, probenum, devcnt, i, j;
+ uint64_t tmp_u64, total_probes, enabled_probes, p;
+ char **sections, **keys, *metafile, *val;
+ char probename[SR_MAX_PROBENAME_LEN + 1];
+
+ if ((ret = sr_sessionfile_check(filename)) != SR_OK)
+ return ret;
+
+ if (!(archive = zip_open(filename, 0, &ret)))
+ return SR_ERR;
+
+ if (zip_stat(archive, "metadata", 0, &zs) == -1)
+ return SR_ERR;
+
if (!(metafile = g_try_malloc(zs.size))) {
sr_err("%s: metafile malloc failed", __func__);
return SR_ERR_MALLOC;
return SR_OK;
}
+/**
+ * Append data to an existing session file.
+ *
+ * @param filename The name of the filename to append to. Must not be NULL.
+ * @param buf The data to be appended.
+ * @param unitsize The number of bytes per sample.
+ * @param units The number of samples.
+ *
+ * @return SR_OK upon success, SR_ERR_ARG upon invalid arguments, or SR_ERR
+ * upon other errors.
+ */
+SR_API int sr_session_append(const char *filename, unsigned char *buf,
+ int unitsize, int units)
+{
+ struct zip *archive;
+ struct zip_source *logicsrc;
+ zip_int64_t num_files;
+ int chunk_num, next_chunk_num, ret, i;
+ const char *entry_name;
+ char chunkname[16];
+
+ if ((ret = sr_sessionfile_check(filename)) != SR_OK)
+ return ret;
+
+ if (!(archive = zip_open(filename, 0, &ret)))
+ return SR_ERR;
+
+ next_chunk_num = 1;
+ num_files = zip_get_num_entries(archive, 0);
+ for (i = 0; i < num_files; i++) {
+ entry_name = zip_get_name(archive, i, 0);
+ if (strncmp(entry_name, "logic-1", 7))
+ continue;
+ if (strlen(entry_name) == 7) {
+ /* This file has no extra chunks, just a single "logic-1".
+ * Rename it to "logic-1-1" * and continue with chunk 2. */
+ if (zip_rename(archive, i, "logic-1-1") == -1) {
+ sr_err("Failed to rename 'logic-1' to 'logic-1-1'.");
+ return SR_ERR;
+ }
+ next_chunk_num = 2;
+ break;
+ } else if (strlen(entry_name) > 8 && entry_name[7] == '-') {
+ chunk_num = strtoull(entry_name + 8, NULL, 10);
+ if (chunk_num >= next_chunk_num)
+ next_chunk_num = chunk_num + 1;
+ }
+ }
+ snprintf(chunkname, 15, "logic-1-%d", next_chunk_num);
+ if (!(logicsrc = zip_source_buffer(archive, buf, units * unitsize, FALSE)))
+ return SR_ERR;
+ if (zip_add(archive, chunkname, logicsrc) == -1)
+ return SR_ERR;
+ if ((ret = zip_close(archive)) == -1) {
+ sr_info("error saving session file: %s", zip_strerror(archive));
+ return SR_ERR;
+ }
+
+ return SR_OK;
+}
+
/** @} */
projects / libsigrok.git / blobdiff