X-Git-Url: https://sigrok.org/gitweb/?a=blobdiff_plain;f=session_driver.c;h=a7ecce6b80674e544a0516563ce164d7a6c9160c;hb=625763e2c2b69f79b950ad0b0cd8b779500f5d95;hp=0efd304de2bce9fbc72d93cdfccc4987d35263a0;hpb=003595ac375fac61ed9ef45b13119c80e7c1ade3;p=libsigrok.git

diff --git a/session_driver.c b/session_driver.c
index 0efd304d..a7ecce6b 100644
--- a/session_driver.c
+++ b/session_driver.c
@@ -1,5 +1,5 @@
 /*
- * This file is part of the sigrok project.
+ * This file is part of the libsigrok project.
  *
  * Copyright (C) 2013 Bert Vermeulen <bert@biot.com>
  *
@@ -26,14 +26,7 @@
 #include "libsigrok.h"
 #include "libsigrok-internal.h"
 
-/* Message logging helpers with driver-specific prefix string. */
-#define DRIVER_LOG_DOMAIN "virtual-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)
+#define LOG_PREFIX "virtual-session"
 
 /* size of payloads sent across the session bus */
 /** @cond PRIVATE */
@@ -49,13 +42,15 @@ struct session_vdev {
 	uint64_t samplerate;
 	int unitsize;
 	int num_probes;
+	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,
 };
 
 static int receive_data(int fd, int revents, void *cb_data)
@@ -64,23 +59,69 @@ static int receive_data(int fd, int revents, void *cb_data)
 	struct session_vdev *vdev;
 	struct sr_datafeed_packet packet;
 	struct sr_datafeed_logic logic;
+	struct zip_stat zs;
 	GSList *l;
-	void *buf;
 	int ret, got_data;
+	char capturefile[16];
+	void *buf;
 
 	(void)fd;
 	(void)revents;
 
-	sr_dbg("Feed chunk.");
-
 	got_data = FALSE;
 	for (l = dev_insts; l; l = l->next) {
 		sdi = l->data;
 		vdev = sdi->priv;
-		if (!vdev)
-			/* already done with this instance */
+		if (vdev->finished)
+			/* Already done with this instance. */
 			continue;
 
+		if (!vdev->capfile) {
+			/* No capture file opened yet, or finished with the last
+			 * chunked one. */
+			if (vdev->cur_chunk == 0) {
+				/* capturefile is always the unchunked base name. */
+				if (zip_stat(vdev->archive, vdev->capturefile, 0, &zs) != -1) {
+					/* No chunks, just a single capture file. */
+					vdev->cur_chunk = 0;
+					if (!(vdev->capfile = zip_fopen(vdev->archive,
+							vdev->capturefile, 0)))
+						return FALSE;
+						sr_dbg("Opened %s.", vdev->capturefile);
+				} else {
+					/* Try as first chunk filename. */
+					snprintf(capturefile, 15, "%s-1", vdev->capturefile);
+					if (zip_stat(vdev->archive, capturefile, 0, &zs) != -1) {
+						vdev->cur_chunk = 1;
+						if (!(vdev->capfile = zip_fopen(vdev->archive,
+								capturefile, 0)))
+							return FALSE;
+						sr_dbg("Opened %s.", capturefile);
+					} else {
+						sr_err("No capture file '%s' in " "session file '%s'.",
+								vdev->capturefile, vdev->sessionfile);
+						return FALSE;
+					}
+				}
+			} else {
+				/* Capture data is chunked, advance to the next chunk. */
+				vdev->cur_chunk++;
+				snprintf(capturefile, 15, "%s-%d", vdev->capturefile,
+						vdev->cur_chunk);
+				if (zip_stat(vdev->archive, capturefile, 0, &zs) != -1) {
+					if (!(vdev->capfile = zip_fopen(vdev->archive,
+							capturefile, 0)))
+						return FALSE;
+					sr_dbg("Opened %s.", capturefile);
+				} else {
+					/* We got all the chunks, finish up. */
+					g_free(vdev->capturefile);
+					vdev->finished = TRUE;
+					continue;
+				}
+			}
+		}
+
 		if (!(buf = g_try_malloc(CHUNKSIZE))) {
 			sr_err("%s: buf malloc failed", __func__);
 			return FALSE;
@@ -99,10 +140,19 @@ static int receive_data(int fd, int revents, void *cb_data)
 		} else {
 			/* done with this capture file */
 			zip_fclose(vdev->capfile);
-			g_free(vdev->capturefile);
-			g_free(vdev);
-			sdi->priv = NULL;
+			vdev->capfile = NULL;
+			if (vdev->cur_chunk == 0) {
+				/* It was the only file. */
+				g_free(vdev->capturefile);
+				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) {
@@ -115,16 +165,15 @@ static int receive_data(int fd, int revents, void *cb_data)
 }
 
 /* driver callbacks */
-static int hw_cleanup(void);
 
-static int hw_init(struct sr_context *sr_ctx)
+static int init(struct sr_context *sr_ctx)
 {
 	(void)sr_ctx;
 
 	return SR_OK;
 }
 
-static int hw_cleanup(void)
+static int cleanup(void)
 {
 	GSList *l;
 
@@ -136,22 +185,32 @@ static int hw_cleanup(void)
 	return SR_OK;
 }
 
-static int hw_dev_open(struct sr_dev_inst *sdi)
+static int dev_open(struct sr_dev_inst *sdi)
 {
-	if (!(sdi->priv = g_try_malloc0(sizeof(struct session_vdev)))) {
-		sr_err("%s: sdi->priv malloc failed", __func__);
-		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)
+{
+	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_probe_group *probe_group)
 {
 	struct session_vdev *vdev;
 
+	(void)probe_group;
+
 	switch (id) {
 	case SR_CONF_SAMPLERATE:
 		if (sdi) {
@@ -161,16 +220,19 @@ static int config_get(int id, GVariant **data, const struct sr_dev_inst *sdi)
 			return SR_ERR;
 		break;
 	default:
-		return SR_ERR_ARG;
+		return SR_ERR_NA;
 	}
 
 	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_probe_group *probe_group)
 {
 	struct session_vdev *vdev;
 
+	(void)probe_group;
+
 	vdev = sdi->priv;
 
 	switch (id) {
@@ -189,21 +251,21 @@ static int config_set(int id, GVariant *data, const struct sr_dev_inst *sdi)
 	case SR_CONF_CAPTURE_UNITSIZE:
 		vdev->unitsize = g_variant_get_uint64(data);
 		break;
-	case SR_CONF_CAPTURE_NUM_PROBES:
+	case SR_CONF_NUM_LOGIC_PROBES:
 		vdev->num_probes = g_variant_get_uint64(data);
 		break;
 	default:
-		sr_err("Unknown capability: %d.", id);
-		return SR_ERR;
+		return SR_ERR_NA;
 	}
 
 	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_probe_group *probe_group)
 {
-
 	(void)sdi;
+	(void)probe_group;
 
 	switch (key) {
 	case SR_CONF_DEVICE_OPTIONS:
@@ -211,16 +273,14 @@ static int config_list(int key, GVariant **data, const struct sr_dev_inst *sdi)
 				hwcaps, ARRAY_SIZE(hwcaps), sizeof(int32_t));
 		break;
 	default:
-		return SR_ERR_ARG;
+		return SR_ERR_NA;
 	}
 
 	return SR_OK;
 }
 
-static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
-		void *cb_data)
+static int dev_acquisition_start(const struct sr_dev_inst *sdi, void *cb_data)
 {
-	struct zip_stat zs;
 	struct session_vdev *vdev;
 	int ret;
 
@@ -231,24 +291,12 @@ static int hw_dev_acquisition_start(const struct sr_dev_inst *sdi,
 
 	if (!(vdev->archive = zip_open(vdev->sessionfile, 0, &ret))) {
 		sr_err("Failed to open session file '%s': "
-		       "zip error %d\n", vdev->sessionfile, ret);
-		return SR_ERR;
-	}
-
-	if (zip_stat(vdev->archive, vdev->capturefile, 0, &zs) == -1) {
-		sr_err("Failed to check capture file '%s' in "
-		       "session file '%s'.", vdev->capturefile, vdev->sessionfile);
-		return SR_ERR;
-	}
-
-	if (!(vdev->capfile = zip_fopen(vdev->archive, vdev->capturefile, 0))) {
-		sr_err("Failed to open capture file '%s' in "
-		       "session file '%s'.", vdev->capturefile, vdev->sessionfile);
+		       "zip error %d.", vdev->sessionfile, ret);
 		return SR_ERR;
 	}
 
 	/* Send header packet to the session bus. */
-	std_session_send_df_header(cb_data, DRIVER_LOG_DOMAIN);
+	std_session_send_df_header(cb_data, LOG_PREFIX);
 
 	/* freewheeling source */
 	sr_session_source_add(-1, 0, 0, receive_data, cb_data);
@@ -261,13 +309,17 @@ SR_PRIV struct sr_dev_driver session_driver = {
 	.name = "virtual-session",
 	.longname = "Session-emulating driver",
 	.api_version = 1,
-	.init = hw_init,
-	.cleanup = hw_cleanup,
+	.init = init,
+	.cleanup = cleanup,
+	.scan = NULL,
+	.dev_list = NULL,
+	.dev_clear = NULL,
 	.config_get = config_get,
 	.config_set = config_set,
 	.config_list = config_list,
-	.dev_open = hw_dev_open,
-	.dev_close = NULL,
-	.dev_acquisition_start = hw_dev_acquisition_start,
+	.dev_open = dev_open,
+	.dev_close = dev_close,
+	.dev_acquisition_start = dev_acquisition_start,
 	.dev_acquisition_stop = NULL,
+	.priv = NULL,
 };