Fixed subscribe/unsubscribe operations.

Change-Id: I79c2f32801bf72e12b3e2da45e2eb2939cb5f85e
Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>

2 files changed, 52 insertions, 19 deletions

diff --git a/src/can-signals.cpp b/src/can-signals.cpp
index 7af957f..8e3a1e6 100644
--- a/src/can-signals.cpp
+++ b/src/can-signals.cpp
@@ -17,27 +17,31 @@
 
 #include <string>
 #include <vector>
+#include <fnmatch.h>
 #include "can-signals.h"
 
-bool match(const std::string &first, const std::string &second)
-{
-
-}
+/* Can signal event map making access to afb_event
+ * external to openxc existing structure.
+ */
+std::map <CanSignal, struct afb_event> subscribed_signals;
+std::map <CanSignal, struct afb_event>::iterator subscribed_signals_i;
 
-CanSignal* getSignals(openxc_DynamicField *key)
+/* Find one or many signals based on its name or id
+* passed through openxc_DynamicField.
+*/
+void find_signals(openxc_DynamicField *key, std:vector <CanSignal> *signals)
 {
 	int n_signals, i;
-	std::vector <CanSignal> ret_signals;
 
-	n_signals = SIGNALS.size();
+	n_signals = getSignalCount();
 
 	switch(key->type):
 	{
 		case openxc_DynamicField_Type::openxc_DynamicField_Type_STRING:
 			for(i=0; i<=n_signals; i++)
 			{
-				if(match((std::string*)key->string_value, (std::string*)SIGNALS[i]->genericName))
-					ret_signals.insert(&SIGNALS[i]);
+				if(fnmatch(key->string_value, SIGNALS[i]->genericName) == 0)
+					signals.insert(&SIGNALS[i]);
 			}
 			break;
 		case openxc_DynamicField_Type::openxc_DynamicField_Type_NUM:
@@ -45,13 +49,22 @@ CanSignal* getSignals(openxc_DynamicField *key)
 			{
 				CanMessageDefinition *msg_def = SIGNALS[i]->message;
 				if(msg_def->id == key->numeric_value)
-					ret_signals.insert(&SIGNALS[i])
+					signals.insert(&SIGNALS[i])
 			}
 			break;
 		default:
+			ERROR(interface, "find_signals: wrong openxc_DynamicField specified. Use openxc_DynamicField_Type_NUM or openxc_DynamicField_Type_STRING type only.");
 			return NULL;
 			break;
 	}
+}
 
-	return &ret_signals;
+CanSignal* getSignals()
+{
+	return &SIGNALS;
+}
+
+int getSignalCount()
+{
+	return SIGNALS.size();
 }
\ No newline at end of file
diff --git a/src/low-can-binding.cpp b/src/low-can-binding.cpp
index b609890..af86786 100644
--- a/src/low-can-binding.cpp
+++ b/src/low-can-binding.cpp
@@ -121,22 +121,42 @@ static int connect_to_event_loop(CanBus &CanBus_handler)
 *
 *********************************************************************************/
 
-static int subscribe_unsubscribe_sig(struct afb_req request, int subscribe, struct signal *sig)
-{
-	if (!afb_event_is_valid(sig->event)) {
+static int subscribe_unsubscribe_signal(struct afb_req request, int subscribe, std::map<CanSignal, struct afb_event>::iterator *s_sig)
+ {
+	if (!afb_event_is_valid(s_sig->second)) {
 		if (!subscribe)
 			return 1;
-		sig->event = afb_daemon_make_event(afbitf->daemon, sig->name);
-		if (!afb_event_is_valid(sig->event)) {
+		sig->event = afb_daemon_make_event(afbitf->daemon, s_sig->first->genericName);
+		if (!afb_event_is_valid(s_sig->second)) {
 			return 0;
 		}
 	}
 
-	if (((subscribe ? afb_req_subscribe : afb_req_unsubscribe)(request, sig->event)) < 0) {
+	if (((subscribe ? afb_req_subscribe : afb_req_unsubscribe)(request, s_sig->second)) < 0) {
 		return 0;
 	}
 
 	return 1;
+ }
+
+static int subscribe_unsubscribe_signals(struct afb_req request, int subscribe, std:vector<CanSignal> *signals)
+{
+	std::vector<CanSignal>::iterator signal_i;
+	std::map <CanSignal, struct afb_event>::iterator s_signal_i;
+	
+	for(signal_i=signals.begin(); signal_i != signals.end(); signal_i++)
+	{
+		s_signal_i = subscribed_signals.find(signal_i);
+		if(s_signal_i != subscribed_signals.end())
+			subscribe_unsubscribe_signal(request, subscribe, s_signal_i);
+		else
+		{
+			std::map <CanSignal, struct afb_event>::iterator it = subscribed_signals.begin();
+			it = subscribed_signals.insert(it, std::pair<CanSignal, struct afb_event>(signal_i, NULL);
+			subscribe_unsubscribe_signal(request, subscribe, it);
+		}
+		return 0;
+	}
 }
 
 static int subscribe_unsubscribe_all(struct afb_req request, int subscribe)
@@ -152,12 +172,12 @@ static int subscribe_unsubscribe_all(struct afb_req request, int subscribe)
 
 static int subscribe_unsubscribe_name(struct afb_req request, int subscribe, const char *name)
 {
-	struct signal *sig;
+	 std::vector <CanSignal> *sig;
 
 	if (0 == strcmp(name, "*"))
 		return subscribe_unsubscribe_all(request, subscribe);
 
-	sig = getSignal(name);
+	find_signals(name, sig);
 	if (sig == NULL) {
 		return 0;
 	}