Enable loading of session files without the capture file defined

[libsigrok.git] / src / session_file.c

diff --git a/src/session_file.c b/src/session_file.c
index f8746f60fa0ae9ae75ab5c1a8cab7c541399b743..fd0dbd07309f98f315726c3b0930020c9c8f9e93 100644 (file)
--- a/src/session_file.c
+++ b/src/session_file.c
@@ -163,6 +163,27 @@ SR_PRIV int sr_sessionfile_check(const char *filename)
        return SR_OK;
 }
 
+SR_PRIV struct sr_dev_inst *sr_session_prepare_sdi(const char *filename, struct sr_session **session)
+{
+       struct sr_dev_inst *sdi = NULL;
+
+       sdi = g_malloc0(sizeof(struct sr_dev_inst));
+       sdi->driver = &session_driver;
+       sdi->status = SR_ST_ACTIVE;
+       if (!session_driver_initialized) {
+               /* first device, init the driver */
+               session_driver_initialized = 1;
+               sdi->driver->init(sdi->driver, NULL);
+       }
+       sr_dev_open(sdi);
+       sr_session_dev_add(*session, sdi);
+       (*session)->owned_devs = g_slist_append((*session)->owned_devs, sdi);
+       sr_config_set(sdi, NULL, SR_CONF_SESSIONFILE,
+                       g_variant_new_string(filename));
+
+       return sdi;
+}
+
 /**
  * Load the session from the specified filename.
  *
@@ -223,32 +244,28 @@ SR_API int sr_session_load(struct sr_context *ctx, const char *filename,
                        /* device section */
                        sdi = NULL;
                        keys = g_key_file_get_keys(kf, sections[i], NULL, NULL);
+
+                       /* File contains analog data if there are analog channels. */
+                       total_analog = g_key_file_get_integer(kf, sections[i],
+                                       "total analog", &error);
+                       if (total_analog > 0 && !error)
+                               sdi = sr_session_prepare_sdi(filename, session);
+                       g_clear_error(&error);
+
+                       /* File contains logic data if a capturefile is set. */
+                       val = g_key_file_get_string(kf, sections[i],
+                               "capturefile", &error);
+                       if (val && !error) {
+                               if (!sdi)
+                                       sdi = sr_session_prepare_sdi(filename, session);
+                               sr_config_set(sdi, NULL, SR_CONF_CAPTUREFILE,
+                                               g_variant_new_string(val));
+                               g_free(val);
+                       }
+                       g_clear_error(&error);
+
                        for (j = 0; keys[j]; j++) {
-                               if (!strcmp(keys[j], "capturefile")) {
-                                       val = g_key_file_get_string(kf, sections[i],
-                                                       keys[j], &error);
-                                       if (!val) {
-                                               ret = SR_ERR_DATA;
-                                               break;
-                                       }
-                                       sdi = g_malloc0(sizeof(struct sr_dev_inst));
-                                       sdi->driver = &session_driver;
-                                       sdi->status = SR_ST_ACTIVE;
-                                       if (!session_driver_initialized) {
-                                               /* first device, init the driver */
-                                               session_driver_initialized = 1;
-                                               sdi->driver->init(sdi->driver, NULL);
-                                       }
-                                       sr_dev_open(sdi);
-                                       sr_session_dev_add(*session, sdi);
-                                       (*session)->owned_devs = g_slist_append(
-                                                       (*session)->owned_devs, sdi);
-                                       sr_config_set(sdi, NULL, SR_CONF_SESSIONFILE,
-                                                       g_variant_new_string(filename));
-                                       sr_config_set(sdi, NULL, SR_CONF_CAPTUREFILE,
-                                                       g_variant_new_string(val));
-                                       g_free(val);
-                               } else if (!strcmp(keys[j], "samplerate")) {
+                               if (!strcmp(keys[j], "samplerate")) {
                                        val = g_key_file_get_string(kf, sections[i],
                                                        keys[j], &error);
                                        if (!sdi || !val || sr_parse_sizestring(val,