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This commit is contained in:
Robin Müller 2023-10-13 16:42:13 +02:00
parent a47ad98d90
commit e7709b7091
Signed by: muellerr
GPG Key ID: FCE0B2BD2195142F
2 changed files with 24 additions and 16 deletions
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38
mission/com/LiveTmTask.cpp
View File

@ -58,16 +58,9 @@ ReturnValue_t LiveTmTask::performOperation(uint8_t opCode) {
<< result << std::dec << std::endl;
}
}
if (channelIsBusy and !throttlePeriodOngoing) {
// Throttle CFDP packet creator. It is by far the most relevant data creator, so throttling
// it is the easiest way to handle back pressure for now in a sensible way.
throttleCfdp();
} else if (!channelIsBusy and throttlePeriodOngoing) {
// Half full/empty flow control: Release the CFDP is the queue is empty enough.
if (signals::CFDP_MSG_COUNTER <= config::LIVE_CHANNEL_CFDP_QUEUE_SIZE / 2) {
releaseCfdp();
}
}
cfdpBackpressureHandling();
if (!handledTm) {
if (tmFunnelCd.hasTimedOut()) {
pusFunnel.performOperation(0);
@ -159,9 +152,10 @@ ReturnValue_t LiveTmTask::handleGenericTmQueue(MessageQueueIF& queue, bool isCfd
if (result == MessageQueueIF::EMPTY) {
return result;
}
if (signals::CFDP_MSG_COUNTER > 0) {
if (isCfdp and signals::CFDP_MSG_COUNTER > 0) {
signals::CFDP_MSG_COUNTER--;
}
sif::debug << "CFDP msg counter: " << signals::CFDP_MSG_COUNTER << std::endl;
store_address_t storeId = message.getStorageId();
const uint8_t* data = nullptr;
size_t size = 0;
@ -177,17 +171,12 @@ ReturnValue_t LiveTmTask::handleGenericTmQueue(MessageQueueIF& queue, bool isCfd
size_t writtenSize = 0;
result = channel.write(data, size, writtenSize);
if (result == DirectTmSinkIF::PARTIALLY_WRITTEN) {
// Already throttle CFDP.
throttleCfdp();
result = channel.handleWriteCompletionSynchronously(writtenSize, 200);
if (result != returnvalue::OK) {
// TODO: Event? Might lead to dangerous spam though..
sif::warning << "LiveTmTask: Synchronous write of last segment failed with code 0x"
<< std::setw(4) << std::hex << result << std::dec << std::endl;
}
// This is a bit of a hack: If a partial write was performed and synchronously finished, we
// treat this like a busy channel.
channelIsBusy = true;
}
}
// Try delete in any case, ignore failures (which should not happen), it is more important to
@ -199,11 +188,13 @@ ReturnValue_t LiveTmTask::handleGenericTmQueue(MessageQueueIF& queue, bool isCfd
void LiveTmTask::throttleCfdp() {
throttlePeriodOngoing = true;
signals::CFDP_CHANNEL_THROTTLE_SIGNAL = true;
sif::debug << "throttling CFDP" << std::endl;
}
void LiveTmTask::releaseCfdp() {
throttlePeriodOngoing = false;
signals::CFDP_CHANNEL_THROTTLE_SIGNAL = false;
sif::debug << "releasing CFDP" << std::endl;
}
void LiveTmTask::updateBusyFlag() {
@ -211,6 +202,21 @@ void LiveTmTask::updateBusyFlag() {
channelIsBusy = channel.isBusy();
}
void LiveTmTask::cfdpBackpressureHandling() {
if (channelIsBusy and !throttlePeriodOngoing) {
// Throttle CFDP packet creator. It is by far the most relevant data creator, so throttling
// it is the easiest way to handle back pressure for now in a sensible way.
if (signals::CFDP_MSG_COUNTER >= (config::LIVE_CHANNEL_CFDP_QUEUE_SIZE / 2)) {
throttleCfdp();
}
} else if (!channelIsBusy and throttlePeriodOngoing) {
// Half full/empty flow control: Release the CFDP is the queue is empty enough.
if (signals::CFDP_MSG_COUNTER <= (config::LIVE_CHANNEL_CFDP_QUEUE_SIZE / 4)) {
releaseCfdp();
}
}
}
ModeTreeChildIF& LiveTmTask::getModeTreeChildIF() { return *this; }
ReturnValue_t LiveTmTask::initialize() {

2
mission/com/LiveTmTask.h
View File

@ -56,6 +56,8 @@ class LiveTmTask : public SystemObject,
void getMode(Mode_t* mode, Submode_t* submode) override;
void cfdpBackpressureHandling();
ReturnValue_t checkModeCommand(Mode_t mode, Submode_t submode,
uint32_t* msToReachTheMode) override;