database/mariadb-columnstore-engine
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Add logic for graceful shutdown

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This commit is contained in:
Ben Thompson
2019-07-01 11:39:24 -05:00
parent bf18233ce7
commit dedffcd01e
10 changed files with 108 additions and 25 deletions
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16
src/Cache.cpp Normal file → Executable file
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@@ -90,9 +90,9 @@ Cache::Cache() : currentCacheSize(0)
throw e;
}
//cout << "Cache got prefix " << prefix << endl;
downloader.setDownloadPath(prefix.string());
downloader.useThisLock(&lru_mutex);
downloader.reset(new Downloader());
downloader->setDownloadPath(prefix.string());
downloader->useThisLock(&lru_mutex);
stmp = conf->getValue("ObjectStorage", "journal_path");
if (stmp.empty())
@@ -191,7 +191,7 @@ void Cache::read(const vector<string> &keys)
vector<int> dl_errnos;
vector<size_t> sizes;
if (!keysToFetch.empty())
downloader.download(keysToFetch, &dl_errnos, &sizes, lru_mutex);
downloader->download(keysToFetch, &dl_errnos, &sizes, lru_mutex);
size_t sum_sizes = 0;
for (size_t &size : sizes)
@@ -266,7 +266,7 @@ void Cache::read(const vector<string> &keys)
return;
assert(s.owns_lock());
downloader.download(keysToFetch, &dlErrnos, &dlSizes);
downloader->download(keysToFetch, &dlErrnos, &dlSizes);
assert(s.owns_lock());
size_t sum_sizes = 0;
@@ -614,6 +614,12 @@ void Cache::reset()
currentCacheSize = 0;
}
void Cache::shutdown()
{
boost::unique_lock<boost::mutex> s(lru_mutex);
downloader.reset();
}
/* The helper classes */
Cache::M_LRU_element_t::M_LRU_element_t(const string *k) : key(k)