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Use a slower retry interval if no products have been recently found, keep refresh enabled if no products were found

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This commit is contained in:
Dan Paulat 2024-02-18 23:37:20 -06:00
parent b493a8d013
commit 3eab1405d2
1 changed files with 25 additions and 9 deletions
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34
scwx-qt/source/scwx/qt/manager/radar_product_manager.cpp
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@ -62,7 +62,8 @@ static constexpr uint32_t NUM_COORIDNATES_1_DEGREE =
static const std::string kDefaultLevel3Product_ {"N0B"};
static constexpr std::chrono::seconds kRetryInterval_ {15};
static constexpr std::chrono::seconds kFastRetryInterval_ {15};
static constexpr std::chrono::seconds kSlowRetryInterval_ {120};
static std::unordered_map<std::string, std::weak_ptr<RadarProductManager>>
instanceMap_;
@ -638,10 +639,12 @@ void RadarProductManagerImpl::RefreshData(
threadPool_,
[=, this]()
{
using namespace std::chrono_literals;
auto [newObjects, totalObjects] =
providerManager->provider_->Refresh();
std::chrono::milliseconds interval = kRetryInterval_;
std::chrono::milliseconds interval = kFastRetryInterval_;
if (totalObjects > 0)
{
@ -651,12 +654,25 @@ void RadarProductManagerImpl::RefreshData(
auto updatePeriod = providerManager->provider_->update_period();
auto lastModified = providerManager->provider_->last_modified();
auto sinceLastModified =
std::chrono::system_clock::now() - lastModified;
// For the default interval, assume products are updated at a
// constant rate. Expect the next product at a time based on the
// previous two.
interval = std::chrono::duration_cast<std::chrono::milliseconds>(
updatePeriod -
(std::chrono::system_clock::now() - lastModified));
if (interval < std::chrono::milliseconds {kRetryInterval_})
updatePeriod - sinceLastModified);
if (updatePeriod > 0s && sinceLastModified > updatePeriod * 5)
{
interval = kRetryInterval_;
// If it has been at least 5 update periods since the file has
// been last modified, slow the retry period
interval = kSlowRetryInterval_;
}
else if (interval < std::chrono::milliseconds {kFastRetryInterval_})
{
// The interval should be no quicker than the fast retry interval
interval = kFastRetryInterval_;
}
if (newObjects > 0)
@ -669,10 +685,10 @@ void RadarProductManagerImpl::RefreshData(
}
else if (providerManager->refreshEnabled_)
{
logger_->info("[{}] No data found, disabling refresh",
providerManager->name());
logger_->info("[{}] No data found", providerManager->name());
providerManager->refreshEnabled_ = false;
// If no data is found, retry at the slow retry interval
interval = kSlowRetryInterval_;
}
if (providerManager->refreshEnabled_)