X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=backend.c;h=62a7651753986114e49e9711b2f236c1ddb49046;hb=6f3e5335adc5ba4488c5f7dcb791f929c20f2049;hp=389df253f2abe008911fbe9a8346eb92a483c6b6;hpb=afe2f28e65f3c3d9b510f101d6cd76c59794cd17;p=libsigrok.git

diff --git a/backend.c b/backend.c
index 389df253..62a76517 100644
--- a/backend.c
+++ b/backend.c
@@ -19,6 +19,7 @@
  */
 
 #include <glib.h>
+#include "config.h" /* Needed for HAVE_LIBUSB_1_0 and others. */
 #include "libsigrok.h"
 #include "libsigrok-internal.h"
 
@@ -113,6 +114,96 @@
  * @{
  */
 
+/**
+ * Sanity-check all libsigrok drivers.
+ *
+ * @return SR_OK if all drivers are OK, SR_ERR if one or more have issues.
+ */
+static int sanity_check_all_drivers(void)
+{
+	int i, errors, ret = SR_OK;
+	struct sr_dev_driver **drivers;
+	const char *d;
+
+	sr_spew("Sanity-checking all drivers.");
+
+	drivers = sr_driver_list();
+	for (i = 0; drivers[i]; i++) {
+		errors = 0;
+
+		d = (drivers[i]->name) ? drivers[i]->name : "NULL";
+
+		if (!drivers[i]->name) {
+			sr_err("No name in driver %d ('%s').", i, d);
+			errors++;
+		}
+		if (!drivers[i]->longname) {
+			sr_err("No longname in driver %d ('%s').", i, d);
+			errors++;
+		}
+		if (drivers[i]->api_version < 1) {
+			sr_err("API version in driver %d ('%s') < 1.", i, d);
+			errors++;
+		}
+		if (!drivers[i]->init) {
+			sr_err("No init in driver %d ('%s').", i, d);
+			errors++;
+		}
+		if (!drivers[i]->cleanup) {
+			sr_err("No cleanup in driver %d ('%s').", i, d);
+			errors++;
+		}
+		if (!drivers[i]->scan) {
+			sr_err("No scan in driver %d ('%s').", i, d);
+			errors++;
+		}
+		if (!drivers[i]->dev_list) {
+			sr_err("No dev_list in driver %d ('%s').", i, d);
+			errors++;
+		}
+		if (!drivers[i]->dev_clear) {
+			sr_err("No dev_clear in driver %d ('%s').", i, d);
+			errors++;
+		}
+		/* Note: config_get() is optional. */
+		if (!drivers[i]->config_set) {
+			sr_err("No config_set in driver %d ('%s').", i, d);
+			errors++;
+		}
+		if (!drivers[i]->config_list) {
+			sr_err("No config_list in driver %d ('%s').", i, d);
+			errors++;
+		}
+		if (!drivers[i]->dev_open) {
+			sr_err("No dev_open in driver %d ('%s').", i, d);
+			errors++;
+		}
+		if (!drivers[i]->dev_close) {
+			sr_err("No dev_close in driver %d ('%s').", i, d);
+			errors++;
+		}
+		if (!drivers[i]->dev_acquisition_start) {
+			sr_err("No dev_acquisition_start in driver %d ('%s').",
+			       i, d);
+			errors++;
+		}
+		if (!drivers[i]->dev_acquisition_stop) {
+			sr_err("No dev_acquisition_stop in driver %d ('%s').",
+			       i, d);
+			errors++;
+		}
+
+		/* Note: 'priv' is allowed to be NULL. */
+
+		if (errors == 0)
+			continue;
+
+		ret = SR_ERR;
+	}
+
+	return ret;
+}
+
 /**
  * Initialize libsigrok.
  *
@@ -137,6 +228,11 @@ SR_API int sr_init(struct sr_context **ctx)
 		return SR_ERR;
 	}
 
+	if (sanity_check_all_drivers() < 0) {
+		sr_err("Internal driver error(s), aborting.");
+		return ret;
+	}
+
 	/* + 1 to handle when struct sr_context has no members. */
 	context = g_try_malloc0(sizeof(struct sr_context) + 1);
 
@@ -149,14 +245,18 @@ SR_API int sr_init(struct sr_context **ctx)
 	ret = libusb_init(&context->libusb_ctx);
 	if (LIBUSB_SUCCESS != ret) {
 		sr_err("libusb_init() returned %s.\n", libusb_error_name(ret));
+		ret = SR_ERR;
 		goto done;
 	}
 #endif
 
 	*ctx = context;
+	context = NULL;
 	ret = SR_OK;
 
 done:
+	if (context)
+		g_free(context);
 	return ret;
 }