blakeridgway/supercell-wx
1
0
Fork 0
mirror of https://github.com/ciphervance/supercell-wx.git synced 2025-10-31 08:20:05 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Avoid invalid iterator comparison after objects mutex is unlocked

Browse source
This commit is contained in:
Dan Paulat 2024-11-15 05:40:34 -06:00
parent 845d5b5707
commit f7949cc404
1 changed files with 8 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

9
wxdata/source/scwx/provider/aws_nexrad_data_provider.cpp
View file

@ -183,6 +183,7 @@ AwsNexradDataProvider::GetTimePointsByDate(
std::shared_lock lock(p->objectsMutex_);
// Is the date present in the date list?
bool currentDatePresent;
auto currentDateIterator =
std::find(p->objectDates_.cbegin(), p->objectDates_.cend(), day);
if (currentDateIterator == p->objectDates_.cend())
@ -199,6 +200,12 @@ AwsNexradDataProvider::GetTimePointsByDate(
// Re-lock mutex
lock.lock();
currentDatePresent = false;
}
else
{
currentDatePresent = true;
}
// Determine objects to retrieve
@ -216,7 +223,7 @@ AwsNexradDataProvider::GetTimePointsByDate(
// If we haven't updated the most recently queried dates yet, because the
// date was already cached, update
if (currentDateIterator != p->objectDates_.cend())
if (currentDatePresent)
{
p->UpdateObjectDates(date);
}