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Notifications : Fix copy when the messages is spread across multiple os_mbuf.

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This commit is contained in:
JF 2020-10-22 10:43:42 +02:00
parent cabf1168d4
commit 07b6812f61
5 changed files with 28 additions and 23 deletions
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15
src/components/ble/AlertNotificationService.cpp
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@ -54,18 +54,21 @@ AlertNotificationService::AlertNotificationService ( System::SystemTask& systemT
int AlertNotificationService::OnAlert(uint16_t conn_handle, uint16_t attr_handle,
struct ble_gatt_access_ctxt *ctxt) {
if (ctxt->op == BLE_GATT_ACCESS_OP_WRITE_CHR) {
static constexpr size_t stringTerminatorSize{1}; // end of string '\0'
static constexpr size_t headerSize{3};
constexpr size_t stringTerminatorSize = 1; // end of string '\0'
constexpr size_t headerSize = 3;
const auto maxMessageSize {NotificationManager::MaximumMessageSize()};
const auto maxBufferSize{maxMessageSize + headerSize};
size_t bufferSize = min(OS_MBUF_PKTLEN(ctxt->om) + stringTerminatorSize, maxBufferSize);
char *message = (char *)(&ctxt->om->om_data[headerSize]);
const auto dbgPacketLen = OS_MBUF_PKTLEN(ctxt->om);
size_t bufferSize = min(dbgPacketLen + stringTerminatorSize, maxBufferSize);
auto messageSize = min(maxMessageSize, (bufferSize-headerSize));
message[messageSize-1] = '\0';
NotificationManager::Notification notif;
os_mbuf_copydata(ctxt->om, headerSize, messageSize-1, notif.message.data());
notif.message[messageSize-1] = '\0';
notif.category = Pinetime::Controllers::NotificationManager::Categories::SimpleAlert;
notificationManager.Push(std::move(notif));
notificationManager.Push(Pinetime::Controllers::NotificationManager::Categories::SimpleAlert, message, messageSize);
systemTask.PushMessage(Pinetime::System::SystemTask::Messages::OnNewNotification);
}
return 0;