X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=session_driver.c;h=fd86ced1655a39298e190b4027766501a0dc991d;hb=762aee1e918e19962a333073f1966ce26584fa11;hp=8090df9d84a427308bd3c7cc635899686c78862b;hpb=f438e0c923a114d7fd34fe0729ecd6891cb262f4;p=libsigrok.git

diff --git a/session_driver.c b/session_driver.c
index 8090df9d..fd86ced1 100644
--- a/session_driver.c
+++ b/session_driver.c
@@ -26,14 +26,7 @@
 #include "libsigrok.h"
 #include "libsigrok-internal.h"
 
-/* Message logging helpers with subsystem-specific prefix string. */
-#define LOG_PREFIX "virtual-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)
+#define LOG_PREFIX "virtual-session"
 
 /* size of payloads sent across the session bus */
 /** @cond PRIVATE */
@@ -48,17 +41,20 @@ struct session_vdev {
 	int bytes_read;
 	uint64_t samplerate;
 	int unitsize;
-	int num_probes;
+	int num_channels;
 	int cur_chunk;
+	gboolean finished;
 };
 
 static GSList *dev_insts = NULL;
 static const int hwcaps[] = {
 	SR_CONF_CAPTUREFILE,
 	SR_CONF_CAPTURE_UNITSIZE,
-	0,
+	SR_CONF_SAMPLERATE,
 };
 
+extern struct sr_session *sr_current_session;
+
 static int receive_data(int fd, int revents, void *cb_data)
 {
 	struct sr_dev_inst *sdi;
@@ -77,15 +73,11 @@ static int receive_data(int fd, int revents, void *cb_data)
 	got_data = FALSE;
 	for (l = dev_insts; l; l = l->next) {
 		sdi = l->data;
-		if (!(vdev = sdi->priv))
+		vdev = sdi->priv;
+		if (vdev->finished)
 			/* Already done with this instance. */
 			continue;
 
-		if (!(buf = g_try_malloc(CHUNKSIZE))) {
-			sr_err("%s: buf malloc failed", __func__);
-			return FALSE;
-		}
-
 		if (!vdev->capfile) {
 			/* No capture file opened yet, or finished with the last
 			 * chunked one. */
@@ -125,16 +117,23 @@ static int receive_data(int fd, int revents, void *cb_data)
 					sr_dbg("Opened %s.", capturefile);
 				} else {
 					/* We got all the chunks, finish up. */
-					g_free(vdev->capturefile);
-					g_free(vdev);
-					sdi->priv = NULL;
+					vdev->finished = TRUE;
 					continue;
 				}
 			}
 		}
 
-		ret = zip_fread(vdev->capfile, buf, CHUNKSIZE);
+		if (!(buf = g_try_malloc(CHUNKSIZE))) {
+			sr_err("%s: buf malloc failed", __func__);
+			return FALSE;
+		}
+
+		ret = zip_fread(vdev->capfile, buf,
+				CHUNKSIZE / vdev->unitsize * vdev->unitsize);
 		if (ret > 0) {
+			if (ret % vdev->unitsize != 0)
+				sr_warn("Read size %d not a multiple of the"
+					" unit size %d.", ret, vdev->unitsize);
 			got_data = TRUE;
 			packet.type = SR_DF_LOGIC;
 			packet.payload = &logic;
@@ -149,21 +148,21 @@ static int receive_data(int fd, int revents, void *cb_data)
 			vdev->capfile = NULL;
 			if (vdev->cur_chunk == 0) {
 				/* It was the only file. */
-				g_free(vdev->capturefile);
-				g_free(vdev);
-				sdi->priv = NULL;
+				vdev->finished = TRUE;
 			} else {
 				/* There might be more chunks, so don't fall through
 				 * to the SR_DF_END here. */
+				g_free(buf);
 				return TRUE;
 			}
 		}
+		g_free(buf);
 	}
 
 	if (!got_data) {
 		packet.type = SR_DF_END;
 		sr_session_send(cb_data, &packet);
-		sr_session_source_remove(-1);
+		sr_session_source_remove(sr_current_session, -1);
 	}
 
 	return TRUE;
@@ -178,7 +177,7 @@ static int init(struct sr_context *sr_ctx)
 	return SR_OK;
 }
 
-static int cleanup(void)
+static int dev_clear(void)
 {
 	GSList *l;
 
@@ -192,20 +191,34 @@ static int cleanup(void)
 
 static int dev_open(struct sr_dev_inst *sdi)
 {
-	if (!(sdi->priv = g_try_malloc0(sizeof(struct session_vdev)))) {
-		sr_err("Device context malloc failed.");
-		return SR_ERR_MALLOC;
-	}
+	struct session_vdev *vdev;
 
+	vdev = g_try_malloc0(sizeof(struct session_vdev));
+	sdi->priv = vdev;
 	dev_insts = g_slist_append(dev_insts, sdi);
 
 	return SR_OK;
 }
 
-static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi)
+static int dev_close(struct sr_dev_inst *sdi)
+{
+	const struct session_vdev *const vdev = sdi->priv;
+	g_free(vdev->sessionfile);
+	g_free(vdev->capturefile);
+
+	g_free(sdi->priv);
+	sdi->priv = NULL;
+
+	return SR_OK;
+}
+
+static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi,
+		const struct sr_channel_group *cg)
 {
 	struct session_vdev *vdev;
 
+	(void)cg;
+
 	switch (id) {
 	case SR_CONF_SAMPLERATE:
 		if (sdi) {
@@ -221,10 +234,13 @@ static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi)
 	return SR_OK;
 }
 
-static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi)
+static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi,
+		const struct sr_channel_group *cg)
 {
 	struct session_vdev *vdev;
 
+	(void)cg;
+
 	vdev = sdi->priv;
 
 	switch (id) {
@@ -233,18 +249,20 @@ static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi)
 		sr_info("Setting samplerate to %" PRIu64 ".", vdev->samplerate);
 		break;
 	case SR_CONF_SESSIONFILE:
+		g_free(vdev->sessionfile);
 		vdev->sessionfile = g_strdup(g_variant_get_string(data, NULL));
 		sr_info("Setting sessionfile to '%s'.", vdev->sessionfile);
 		break;
 	case SR_CONF_CAPTUREFILE:
+		g_free(vdev->capturefile);
 		vdev->capturefile = g_strdup(g_variant_get_string(data, NULL));
 		sr_info("Setting capturefile to '%s'.", vdev->capturefile);
 		break;
 	case SR_CONF_CAPTURE_UNITSIZE:
 		vdev->unitsize = g_variant_get_uint64(data);
 		break;
-	case SR_CONF_CAPTURE_NUM_PROBES:
-		vdev->num_probes = g_variant_get_uint64(data);
+	case SR_CONF_NUM_LOGIC_CHANNELS:
+		vdev->num_channels = g_variant_get_uint64(data);
 		break;
 	default:
 		return SR_ERR_NA;
@@ -253,10 +271,11 @@ static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi)
 	return SR_OK;
 }
 
-static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
+static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi,
+		const struct sr_channel_group *cg)
 {
-
 	(void)sdi;
+	(void)cg;
 
 	switch (key) {
 	case SR_CONF_DEVICE_OPTIONS:
@@ -277,12 +296,16 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
 
 	vdev = sdi->priv;
 
+	vdev->bytes_read = 0;
+	vdev->cur_chunk = 0;
+	vdev->finished = FALSE;
+
 	sr_info("Opening archive %s file %s", vdev->sessionfile,
 		vdev->capturefile);
 
 	if (!(vdev->archive = zip_open(vdev->sessionfile, 0, &ret))) {
 		sr_err("Failed to open session file '%s': "
-		       "zip error %d\n", vdev->sessionfile, ret);
+		       "zip error %d.", vdev->sessionfile, ret);
 		return SR_ERR;
 	}
 
@@ -290,7 +313,7 @@ static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
 	std_session_send_df_header(cb_data, LOG_PREFIX);
 
 	/* freewheeling source */
-	sr_session_source_add(-1, 0, 0, receive_data, cb_data);
+	sr_session_source_add(sr_current_session, -1, 0, 0, receive_data, cb_data);
 
 	return SR_OK;
 }
@@ -301,15 +324,15 @@ SR_PRIV struct sr_dev_driver session_driver = {
 	.longname = "Session-emulating driver",
 	.api_version = 1,
 	.init = init,
-	.cleanup = cleanup,
+	.cleanup = dev_clear,
 	.scan = NULL,
 	.dev_list = NULL,
-	.dev_clear = NULL,
+	.dev_clear = dev_clear,
 	.config_get = config_get,
 	.config_set = config_set,
 	.config_list = config_list,
 	.dev_open = dev_open,
-	.dev_close = NULL,
+	.dev_close = dev_close,
 	.dev_acquisition_start = dev_acquisition_start,
 	.dev_acquisition_stop = NULL,
 	.priv = NULL,