/*
- * This file is part of the sigrok project.
+ * This file is part of the libsigrok project.
*
* Copyright (C) 2010-2012 Bert Vermeulen <bert@biot.com>
*
#include "libsigrok.h"
#include "libsigrok-internal.h"
-/* Message logging helpers with driver-specific prefix string. */
-#define DRIVER_LOG_DOMAIN "session: "
-#define sr_log(l, s, args...) sr_log(l, DRIVER_LOG_DOMAIN s, ## args)
-#define sr_spew(s, args...) sr_spew(DRIVER_LOG_DOMAIN s, ## args)
-#define sr_dbg(s, args...) sr_dbg(DRIVER_LOG_DOMAIN s, ## args)
-#define sr_info(s, args...) sr_info(DRIVER_LOG_DOMAIN s, ## args)
-#define sr_warn(s, args...) sr_warn(DRIVER_LOG_DOMAIN s, ## args)
-#define sr_err(s, args...) sr_err(DRIVER_LOG_DOMAIN s, ## args)
+/* Message logging helpers with subsystem-specific prefix string. */
+#define LOG_PREFIX "session: "
+#define sr_log(l, s, args...) sr_log(l, LOG_PREFIX s, ## args)
+#define sr_spew(s, args...) sr_spew(LOG_PREFIX s, ## args)
+#define sr_dbg(s, args...) sr_dbg(LOG_PREFIX s, ## args)
+#define sr_info(s, args...) sr_info(LOG_PREFIX s, ## args)
+#define sr_warn(s, args...) sr_warn(LOG_PREFIX s, ## args)
+#define sr_err(s, args...) sr_err(LOG_PREFIX s, ## args)
/**
* @file
gintptr poll_object;
};
+struct datafeed_callback {
+ sr_datafeed_callback_t cb;
+ void *cb_data;
+};
+
/* There can only be one session at a time. */
/* 'session' is not static, it's used elsewhere (via 'extern'). */
struct sr_session *session;
return SR_OK;
}
-/**
- * Close a device instance.
- *
- * @param sdi The device instance to close. Must not be NULL. Also,
- * sdi->driver, sdi->driver->priv, and sdi->priv must not be NULL.
- */
-static void sr_dev_close(struct sr_dev_inst *sdi)
-{
- int ret;
-
- if (!sdi) {
- sr_err("Invalid device instance, can't close device.");
- return;
- }
-
- /* In the drivers sdi->priv is a 'struct dev_context *devc'. */
- if (!sdi->priv) {
- /*
- * Should be sr_err() in theory, but the 'demo' driver has
- * NULL for sdi->priv, so we use sr_dbg() until that's fixed.
- */
- sr_dbg("Invalid device context, can't close device.");
- return;
- }
-
- if (!sdi->driver) {
- sr_err("Invalid driver, can't close device.");
- return;
- }
-
- if (!sdi->driver->priv) {
- sr_err("Driver not initialized, can't close device.");
- return;
- }
-
- sr_spew("Closing '%s' device instance %d.", sdi->driver->name,
- sdi->index);
-
- if ((ret = sdi->driver->dev_close(sdi)) < 0)
- sr_err("Failed to close device instance: %d.", ret);
-}
-
/**
* Remove all the devices from the current session.
*
return SR_ERR_BUG;
}
- g_slist_free_full(session->devs, (GDestroyNotify)sr_dev_close);
+ g_slist_free(session->devs);
session->devs = NULL;
return SR_OK;
*/
SR_API int sr_session_dev_add(const struct sr_dev_inst *sdi)
{
- int ret;
if (!sdi) {
sr_err("%s: sdi was NULL", __func__);
return SR_ERR_BUG;
}
- if ((ret = sdi->driver->dev_open((struct sr_dev_inst *)sdi)) != SR_OK) {
- sr_err("%s: dev_open failed (%d)", __func__, ret);
- return ret;
- }
-
session->devs = g_slist_append(session->devs, (gpointer)sdi);
return SR_OK;
return SR_ERR_BUG;
}
- g_slist_free(session->datafeed_callbacks);
+ g_slist_free_full(session->datafeed_callbacks, g_free);
session->datafeed_callbacks = NULL;
return SR_OK;
*
* @param cb Function to call when a chunk of data is received.
* Must not be NULL.
+ * @param cb_data Opaque pointer passed in by the caller.
*
* @return SR_OK upon success, SR_ERR_BUG if no session exists.
*/
-SR_API int sr_session_datafeed_callback_add(sr_datafeed_callback_t cb)
+SR_API int sr_session_datafeed_callback_add(sr_datafeed_callback_t cb, void *cb_data)
{
+ struct datafeed_callback *cb_struct;
+
if (!session) {
sr_err("%s: session was NULL", __func__);
return SR_ERR_BUG;
return SR_ERR_ARG;
}
+ if (!(cb_struct = g_try_malloc0(sizeof(struct datafeed_callback))))
+ return SR_ERR_MALLOC;
+
+ cb_struct->cb = cb;
+ cb_struct->cb_data = cb_data;
+
session->datafeed_callbacks =
- g_slist_append(session->datafeed_callbacks, cb);
+ g_slist_append(session->datafeed_callbacks, cb_struct);
return SR_OK;
}
* just once per main event loop.
*/
g_mutex_lock(&session->stop_mutex);
- if (session->abort_session)
+ if (session->abort_session) {
sr_session_stop_sync();
+ /* But once is enough. */
+ session->abort_session = FALSE;
+ }
g_mutex_unlock(&session->stop_mutex);
}
}
}
}
- /*
- * Some sources may not be necessarily associated with a device.
- * Those sources may still be present even after stopping all devices.
- * We need to make sure all sources are removed, or we risk running the
- * session in an infinite loop.
- */
- while (session->num_sources)
- sr_session_source_remove(session->sources[0].poll_object);
-
return SR_OK;
}
const struct sr_datafeed_packet *packet)
{
GSList *l;
- sr_datafeed_callback_t cb;
+ struct datafeed_callback *cb_struct;
if (!sdi) {
sr_err("%s: sdi was NULL", __func__);
for (l = session->datafeed_callbacks; l; l = l->next) {
if (sr_log_loglevel_get() >= SR_LOG_DBG)
datafeed_dump(packet);
- cb = l->data;
- cb(sdi, packet);
+ cb_struct = l->data;
+ cb_struct->cb(sdi, packet, cb_struct->cb_data);
}
return SR_OK;
projects / libsigrok.git / blobdiff