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AP_RCProtocol: optimize DroneCAN subscription process 

* remove unnecessary nullptr check, these are always called from an
  initialized AP_DroneCAN so if it's nullptr something has gone
  horrifically wrong

* pass in driver index instead of repeatedly calling function to get it

* simplify error handling; knowing exactly which allocation failed is not
  super helpful and one failing likely means subsequent ones will too,
  as it can only fail due to being out of memory
This commit is contained in:
Thomas Watson 2024-11-16 21:21:13 -06:00 committed by Andrew Tridgell
parent 453b83c159
commit 2f1a8d1ef4
2 changed files with 4 additions and 8 deletions
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10
libraries/AP_RCProtocol/AP_RCProtocol_DroneCAN.cpp
View File

@ -14,15 +14,11 @@ extern const AP_HAL::HAL& hal;
AP_RCProtocol_DroneCAN::Registry AP_RCProtocol_DroneCAN::registry;
AP_RCProtocol_DroneCAN *AP_RCProtocol_DroneCAN::_singleton;
void AP_RCProtocol_DroneCAN::subscribe_msgs(AP_DroneCAN* ap_dronecan)
bool AP_RCProtocol_DroneCAN::subscribe_msgs(AP_DroneCAN* ap_dronecan)
{
if (ap_dronecan == nullptr) {
return;
}
const auto driver_index = ap_dronecan->get_driver_index();
if (Canard::allocate_sub_arg_callback(ap_dronecan, &handle_rcinput, ap_dronecan->get_driver_index()) == nullptr) {
AP_BoardConfig::allocation_error("rc_sub");
}
return (Canard::allocate_sub_arg_callback(ap_dronecan, &handle_rcinput, driver_index) != nullptr);
}
AP_RCProtocol_DroneCAN* AP_RCProtocol_DroneCAN::get_dronecan_backend(AP_DroneCAN* ap_dronecan, uint8_t node_id)

2
libraries/AP_RCProtocol/AP_RCProtocol_DroneCAN.h
View File

@ -18,7 +18,7 @@ public:
_singleton = this;
}
static void subscribe_msgs(AP_DroneCAN* ap_dronecan);
static bool subscribe_msgs(AP_DroneCAN* ap_dronecan);
void update() override;