Add some comments to explain the progress of service discovery.

master
Rohit Grover 2015-05-21 15:20:50 +01:00
parent 41d56ae5e7
commit f18a8ba27f
1 changed files with 7 additions and 0 deletions

View File

@ -130,6 +130,7 @@ NordicServiceDiscovery::setupDiscoveredCharacteristics(const ble_gattc_evt_char_
void
NordicServiceDiscovery::progressCharacteristicDiscovery(void)
{
/* Iterate through the previously discovered characteristics cached in characteristics[]. */
while (cDiscoveryActive && (characteristicIndex < numCharacteristics)) {
if (characteristicCallback) {
characteristicCallback(characteristics[characteristicIndex]);
@ -138,7 +139,9 @@ NordicServiceDiscovery::progressCharacteristicDiscovery(void)
characteristicIndex++;
}
/* Relaunch discovery of new characteristics beyond the last entry cached in characteristics[]. */
if (cDiscoveryActive) {
/* Determine the ending handle of the last cached characteristic. */
Gap::Handle_t startHandle = characteristics[characteristicIndex - 1].getValueHandle() + 1;
Gap::Handle_t endHandle = services[serviceIndex].getEndHandle();
resetDiscoveredCharacteristics(); /* Note: resetDiscoveredCharacteristics() must come after fetching start and end Handles. */
@ -160,6 +163,7 @@ NordicServiceDiscovery::progressCharacteristicDiscovery(void)
void
NordicServiceDiscovery::progressServiceDiscovery(void)
{
/* Iterate through the previously discovered services cached in services[]. */
while (sDiscoveryActive && (serviceIndex < numServices)) {
if (serviceCallback) {
serviceCallback(services[serviceIndex]);
@ -171,7 +175,10 @@ NordicServiceDiscovery::progressServiceDiscovery(void)
serviceIndex++; /* Progress service index to keep discovery alive. */
}
}
/* Relaunch discovery of new services beyond the last entry cached in services[]. */
if (sDiscoveryActive && (numServices > 0) && (serviceIndex > 0)) {
/* Determine the ending handle of the last cached service. */
Gap::Handle_t endHandle = services[serviceIndex - 1].getEndHandle();
resetDiscoveredServices(); /* Note: resetDiscoveredServices() must come after fetching endHandle. */