X-Git-Url: http://sigrok.org/gitweb/?a=blobdiff_plain;f=backend.c;h=ca1460f8e29e1ac0a7878c2753e4184097020206;hb=f6b59690146fc45050cef965a6be1590b47852b9;hp=62a7651753986114e49e9711b2f236c1ddb49046;hpb=6fab7b8f5365c7be69be4a755910945b6113dd8f;p=libsigrok.git

diff --git a/backend.c b/backend.c
index 62a76517..ca1460f8 100644
--- a/backend.c
+++ b/backend.c
@@ -1,5 +1,5 @@
 /*
- * 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>
  * Copyright (C) 2012 Peter Stuge <peter@stuge.se>
@@ -204,6 +204,108 @@ static int sanity_check_all_drivers(void)
 	return ret;
 }
 
+/**
+ * Sanity-check all libsigrok input modules.
+ *
+ * @return SR_OK if all modules are OK, SR_ERR if one or more have issues.
+ */
+static int sanity_check_all_input_modules(void)
+{
+	int i, errors, ret = SR_OK;
+	struct sr_input_format **inputs;
+	const char *d;
+
+	sr_spew("Sanity-checking all input modules.");
+
+	inputs = sr_input_list();
+	for (i = 0; inputs[i]; i++) {
+		errors = 0;
+
+		d = (inputs[i]->id) ? inputs[i]->id : "NULL";
+
+		if (!inputs[i]->id) {
+			sr_err("No ID in module %d ('%s').", i, d);
+			errors++;
+		}
+		if (!inputs[i]->description) {
+			sr_err("No description in module %d ('%s').", i, d);
+			errors++;
+		}
+		if (!inputs[i]->format_match) {
+			sr_err("No format_match in module %d ('%s').", i, d);
+			errors++;
+		}
+		if (!inputs[i]->init) {
+			sr_err("No init in module %d ('%s').", i, d);
+			errors++;
+		}
+		if (!inputs[i]->loadfile) {
+			sr_err("No loadfile in module %d ('%s').", i, d);
+			errors++;
+		}
+
+		if (errors == 0)
+			continue;
+
+		ret = SR_ERR;
+	}
+
+	return ret;
+}
+
+/**
+ * Sanity-check all libsigrok output modules.
+ *
+ * @return SR_OK if all modules are OK, SR_ERR if one or more have issues.
+ */
+static int sanity_check_all_output_modules(void)
+{
+	int i, errors, ret = SR_OK;
+	struct sr_output_format **outputs;
+	const char *d;
+
+	sr_spew("Sanity-checking all output modules.");
+
+	outputs = sr_output_list();
+	for (i = 0; outputs[i]; i++) {
+		errors = 0;
+
+		d = (outputs[i]->id) ? outputs[i]->id : "NULL";
+
+		if (!outputs[i]->id) {
+			sr_err("No ID in module %d ('%s').", i, d);
+			errors++;
+		}
+		if (!outputs[i]->description) {
+			sr_err("No description in module %d ('%s').", i, d);
+			errors++;
+		}
+		if (outputs[i]->df_type < 10000 || outputs[i]->df_type > 10007) {
+			sr_err("Invalid df_type %d in module %d ('%s').",
+			       outputs[i]->df_type, i, d);
+			errors++;
+		}
+
+		/* All modules must provide a data or recv API callback. */
+		if (!outputs[i]->data && !outputs[i]->receive) {
+			sr_err("No data/receive in module %d ('%s').", i, d);
+			errors++;
+		}
+
+		/*
+		 * Currently most API calls are optional (their function
+		 * pointers can thus be NULL) in theory: init, event, cleanup.
+		 */
+
+		if (errors == 0)
+			continue;
+
+		ret = SR_ERR;
+	}
+
+	return ret;
+}
+
 /**
  * Initialize libsigrok.
  *
@@ -217,6 +319,8 @@ static int sanity_check_all_drivers(void)
  *         the 'ctx' pointer is undefined and should not be used. Upon success,
  *         the context will be free'd by sr_exit() as part of the libsigrok
  *         shutdown.
+ *
+ * @since 0.1.0 (but the API changed in 0.2.0)
  */
 SR_API int sr_init(struct sr_context **ctx)
 {
@@ -233,6 +337,16 @@ SR_API int sr_init(struct sr_context **ctx)
 		return ret;
 	}
 
+	if (sanity_check_all_input_modules() < 0) {
+		sr_err("Internal input module error(s), aborting.");
+		return ret;
+	}
+
+	if (sanity_check_all_output_modules() < 0) {
+		sr_err("Internal output module error(s), aborting.");
+		return ret;
+	}
+
 	/* + 1 to handle when struct sr_context has no members. */
 	context = g_try_malloc0(sizeof(struct sr_context) + 1);
 
@@ -266,6 +380,8 @@ done:
  * @param ctx Pointer to a libsigrok context struct. Must not be NULL.
  *
  * @return SR_OK upon success, a (negative) error code otherwise.
+ *
+ * @since 0.1.0 (but the API changed in 0.2.0)
  */
 SR_API int sr_exit(struct sr_context *ctx)
 {