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authorRomain Forlot <romain.forlot@iot.bzh>2017-03-30 17:19:59 +0200
committerRomain Forlot <romain.forlot@iot.bzh>2017-04-11 12:41:42 +0200
commit46d396e04947a76756739576a29c8369f8cd0c50 (patch)
tree6f27b769b2880c291d7b2704c414e35c22c1b85d /src
parent34d84de6e8b825ced7d476672035c0b94856862e (diff)
Handle cancel active diag requet when there are no more subscribers
When push events if there is no more subscribers to that event then call a function that will cleanup that request from diagnostic manager queue. Change-Id: I8153701074453444a5bba6f1374401bdf230f7e6 Signed-off-by: Romain Forlot <romain.forlot@iot.bzh>
Diffstat (limited to 'src')
-rw-r--r--src/can/can-bus.cpp3
-rw-r--r--src/configuration.cpp18
-rw-r--r--src/configuration.hpp3
-rw-r--r--src/low-can-binding.cpp42
-rw-r--r--src/low-can-binding.hpp5
5 files changed, 48 insertions, 23 deletions
diff --git a/src/can/can-bus.cpp b/src/can/can-bus.cpp
index ee70744..33f58fd 100644
--- a/src/can/can-bus.cpp
+++ b/src/can/can-bus.cpp
@@ -185,7 +185,8 @@ void can_bus_t::can_event_push()
{
jo = json_object_new_object();
jsonify_simple(s_message, jo);
- afb_event_push(s[std::string(s_message.name)], jo);
+ if(afb_event_push(s[std::string(s_message.name)], jo) == 0)
+ on_no_clients(std::string(s_message.name));
}
}
}
diff --git a/src/configuration.cpp b/src/configuration.cpp
index 184d468..32cb00c 100644
--- a/src/configuration.cpp
+++ b/src/configuration.cpp
@@ -18,6 +18,7 @@
#include "configuration.hpp"
#include "utils/signals.hpp"
+#include "utils/openxc-utils.hpp"
/// @brief Return singleton instance of configuration object.
configuration_t& configuration_t::instance()
@@ -109,6 +110,23 @@ void configuration_t::find_diagnostic_messages(const openxc_DynamicField &key, s
DEBUG(binder_interface, "find_diagnostic_messages: Found %d signal(s)", (int)found_signals.size());
}
+diagnostic_message_t* configuration_t::get_diagnostic_message(std::string message_name) const
+{
+ std::vector<diagnostic_message_t*> found;
+ configuration_t::instance().find_diagnostic_messages(build_DynamicField(message_name), found);
+ return found.front();
+}
+
+DiagnosticRequest* configuration_t::get_request_from_diagnostic_message(diagnostic_message_t* diag_msg) const
+{
+ return new DiagnosticRequest(diag_msg->build_diagnostic_request());
+}
+
+DiagnosticRequest* configuration_t::get_request_from_diagnostic_message(std::string message_name) const
+{
+ return new DiagnosticRequest(get_diagnostic_message(message_name)->build_diagnostic_request());
+}
+
/// @brief return signals name found searching through CAN signals list.
///
/// @param[in] key - can contain numeric or string value in order to search against
diff --git a/src/configuration.hpp b/src/configuration.hpp
index 57eeef3..017b148 100644
--- a/src/configuration.hpp
+++ b/src/configuration.hpp
@@ -88,6 +88,9 @@ class configuration_t
void set_active_message_set(uint8_t id);
void find_diagnostic_messages(const openxc_DynamicField &key, std::vector<diagnostic_message_t*>& found_signals);
+ diagnostic_message_t* get_diagnostic_message(std::string message_name) const;
+ DiagnosticRequest* get_request_from_diagnostic_message(diagnostic_message_t* diag_msg) const;
+ DiagnosticRequest* get_request_from_diagnostic_message(std::string message_name) const;
void find_can_signals(const openxc_DynamicField &key, std::vector<can_signal_t*>& found_signals);
diff --git a/src/low-can-binding.cpp b/src/low-can-binding.cpp
index cee88a8..8fc143c 100644
--- a/src/low-can-binding.cpp
+++ b/src/low-can-binding.cpp
@@ -45,6 +45,13 @@ extern "C"
// Interface between the daemon and the binding
const struct afb_binding_interface *binder_interface;
+void on_no_clients(std::string message)
+{
+ DiagnosticRequest* diag_req = configuration_t::instance().get_request_from_diagnostic_message(message);
+ active_diagnostic_request_t* adr = configuration_t::instance().get_diagnostic_manager().find_recurring_request(diag_req);
+ configuration_t::instance().get_diagnostic_manager().cleanup_request(adr, true);
+}
+
///******************************************************************************
///
/// Subscription and unsubscription
@@ -60,7 +67,6 @@ static int make_subscription_unsubscription(struct afb_req request, const std::s
return 0;
}
return 1;
-
}
static int create_event_handle(const std::string& sig_name, std::map<std::string, struct afb_event>& s)
@@ -129,29 +135,21 @@ static int subscribe_unsubscribe_signals(struct afb_req request, bool subscribe,
for(const std::string& sig : signals)
{
int ret;
+ bool to_subscribe = false;
if (active_diagnostic_request_t::is_diagnostic_signal(sig))
{
- std::vector<diagnostic_message_t*> found;
- configuration_t::instance().find_diagnostic_messages(build_DynamicField(sig), found);
- DiagnosticRequest* diag_req = new DiagnosticRequest(found.front()->build_diagnostic_request());
+ diagnostic_message_t* diag_msg = configuration_t::instance().get_diagnostic_message(sig);
+ DiagnosticRequest* diag_req = configuration_t::instance().get_request_from_diagnostic_message(diag_msg);
// If the requested diagnostic message isn't supported by the car then unssubcribe.
// no matter what we want, worse case will be a fail unsubscription but at least we don't
// poll a PID for nothing.
- if(found.front()->get_supported())
+ if(diag_msg->get_supported() && subscribe)
{
- if(subscribe)
- {
- float frequency = found.front()->get_frequency();
- configuration_t::instance().get_diagnostic_manager().add_recurring_request(
- diag_req, sig.c_str(), false, found.front()->get_decoder(), found.front()->get_callback(), (float)frequency);
+ float frequency = diag_msg->get_frequency();
+ to_subscribe = configuration_t::instance().get_diagnostic_manager().add_recurring_request(
+ diag_req, sig.c_str(), false, diag_msg->get_decoder(), diag_msg->get_callback(), (float)frequency);
//TODO: Adding callback requesting ignition status: diag_req, sig.c_str(), false, diagnostic_message_t::decode_obd2_response, diagnostic_message_t::check_ignition_status, frequency);
- }
- else
- {
- active_diagnostic_request_t* adr = configuration_t::instance().get_diagnostic_manager().find_recurring_request(diag_req);
- configuration_t::instance().get_diagnostic_manager().cleanup_request(adr, true);
- }
}
else
{
@@ -162,11 +160,13 @@ static int subscribe_unsubscribe_signals(struct afb_req request, bool subscribe,
}
}
- ret = subscribe_unsubscribe_signal(request, subscribe, sig);
- if(ret <= 0)
- return ret;
-
- rets++;
+ if(to_subscribe)
+ {
+ ret = subscribe_unsubscribe_signal(request, subscribe, sig);
+ if(ret <= 0)
+ return ret;
+ rets++;
+ }
DEBUG(binder_interface, "Signal: %s subscribed", sig.c_str());
}
return rets;
diff --git a/src/low-can-binding.hpp b/src/low-can-binding.hpp
index 04c7eac..ed5741d 100644
--- a/src/low-can-binding.hpp
+++ b/src/low-can-binding.hpp
@@ -19,6 +19,7 @@
#pragma once
#include <cstddef>
+#include <string>
extern "C"
{
@@ -27,4 +28,6 @@ extern "C"
extern "C" struct afb_binding_interface;
-extern const struct afb_binding_interface *binder_interface; \ No newline at end of file
+extern const struct afb_binding_interface *binder_interface;
+
+void on_no_clients(std::string message); \ No newline at end of file