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Only emit download progress updates every 100ms

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This commit is contained in:
Dan Paulat 2024-03-26 22:48:52 -05:00
parent 3ab05a1654
commit 6448826d60
1 changed files with 53 additions and 30 deletions
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83
scwx-qt/source/scwx/qt/manager/download_manager.cpp
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@ -105,26 +105,52 @@ void DownloadManager::Download(
return;
}
std::chrono::system_clock::time_point lastUpdated {};
cpr::cpr_off_t lastDownloadNow {};
cpr::cpr_off_t lastDownloadTotal {};
// Download file
cpr::Response response = cpr::Get(
cpr::Url {request->url()},
cpr::ProgressCallback(
[=](cpr::cpr_off_t downloadTotal,
cpr::cpr_off_t downloadNow,
cpr::cpr_off_t /* uploadTotal */,
cpr::cpr_off_t /* uploadNow */,
std::intptr_t /* userdata */)
{
Q_EMIT request->ProgressUpdated(downloadNow, downloadTotal);
return !request->IsCanceled();
}),
cpr::WriteCallback(
[=, &ofs](std::string data, std::intptr_t /* userdata */)
{
// Write file
ofs << data;
return !request->IsCanceled();
}));
cpr::Response response =
cpr::Get(cpr::Url {request->url()},
cpr::ProgressCallback(
[&](cpr::cpr_off_t downloadTotal,
cpr::cpr_off_t downloadNow,
cpr::cpr_off_t /* uploadTotal */,
cpr::cpr_off_t /* uploadNow */,
std::intptr_t /* userdata */)
{
using namespace std::chrono_literals;
std::chrono::system_clock::time_point now =
std::chrono::system_clock::now();
// Only emit an update every 100ms
if ((now > lastUpdated + 100ms ||
downloadNow == downloadTotal) &&
(downloadNow != lastDownloadNow ||
downloadTotal != lastDownloadTotal))
{
logger_->trace("Downloaded: {} / {}",
downloadNow,
downloadTotal);
Q_EMIT request->ProgressUpdated(downloadNow,
downloadTotal);
lastUpdated = now;
lastDownloadNow = downloadNow;
lastDownloadTotal = downloadTotal;
}
return !request->IsCanceled();
}),
cpr::WriteCallback(
[&](std::string data, std::intptr_t /* userdata */)
{
// Write file
ofs << data;
return !request->IsCanceled();
}));
bool ofsGood = ofs.good();
ofs.close();
@ -138,14 +164,13 @@ void DownloadManager::Download(
if (request->IsCanceled())
{
logger_->info("Download request cancelled: \"{}\"",
request->url());
logger_->info("Download request cancelled: {}", request->url());
reason = request::DownloadRequest::CompleteReason::Canceled;
}
else if (response.error.code != cpr::ErrorCode::OK)
{
logger_->error("Error downloading file ({}): \"{}\"",
logger_->error("Error downloading file ({}): {}",
response.error.message,
request->url());
@ -153,8 +178,7 @@ void DownloadManager::Download(
}
else if (!ofsGood)
{
logger_->error("File I/O error: \"{}\"",
destinationPath.string());
logger_->error("File I/O error: {}", destinationPath.string());
reason = request::DownloadRequest::CompleteReason::IOError;
}
@ -162,7 +186,7 @@ void DownloadManager::Download(
std::error_code error;
if (!std::filesystem::remove(destinationPath, error))
{
logger_->error("Unable to remove destination file: \"{}\", {}",
logger_->error("Unable to remove destination file: {}, {}",
destinationPath.string(),
error.message());
}
@ -182,9 +206,8 @@ void DownloadManager::Download(
std::ios_base::in | std::ios_base::binary};
if (!is.is_open() || !is.good())
{
logger_->error(
"Unable to open destination file for reading: \"{}\"",
destinationPath.string());
logger_->error("Unable to open destination file for reading: {}",
destinationPath.string());
Q_EMIT request->RequestComplete(
request::DownloadRequest::CompleteReason::IOError);
@ -196,7 +219,7 @@ void DownloadManager::Download(
std::vector<std::uint8_t> digest {};
if (!util::ComputeDigest(EVP_md5(), is, digest))
{
logger_->error("Failed to compute MD5: \"{}\"",
logger_->error("Failed to compute MD5: {}",
destinationPath.string());
Q_EMIT request->RequestComplete(
@ -227,7 +250,7 @@ void DownloadManager::Download(
}
}
logger_->info("Download complete: \"{}\"", request->url());
logger_->info("Download complete: {}", request->url());
Q_EMIT request->RequestComplete(
request::DownloadRequest::CompleteReason::OK);
});