Merge pull request #1003 from isanae/file-list-improvements

Refresh optimizations

1 files changed, 145 insertions, 0 deletions

diff --git a/src/shared/originconnection.cpp b/src/shared/originconnection.cpp
new file mode 100644
index 00000000..c1c096f0
--- /dev/null
+++ b/src/shared/originconnection.cpp
@@ -0,0 +1,145 @@
+#include "originconnection.h"
+#include "filesorigin.h"
+#include "util.h"
+#include <log.h>
+
+namespace MOShared
+{
+
+using namespace MOBase;
+
+OriginConnection::OriginConnection()
+  : m_NextID(0)
+{
+}
+
+std::pair<FilesOrigin&, bool> OriginConnection::getOrCreate(
+  const std::wstring &originName, const std::wstring &directory, int priority,
+  const boost::shared_ptr<FileRegister>& fileRegister,
+  const boost::shared_ptr<OriginConnection>& originConnection,
+  DirectoryStats& stats)
+{
+  std::unique_lock lock(m_Mutex);
+
+  auto itor = m_OriginsNameMap.find(originName);
+
+  if (itor == m_OriginsNameMap.end()) {
+    FilesOrigin& origin = createOriginNoLock(
+      originName, directory, priority, fileRegister, originConnection);
+
+    return {origin, true};
+  } else {
+    FilesOrigin& origin = m_Origins[itor->second];
+    lock.unlock();
+
+    origin.enable(true, stats);
+    return {origin, false};
+  }
+}
+
+FilesOrigin& OriginConnection::createOrigin(
+  const std::wstring &originName, const std::wstring &directory, int priority,
+  boost::shared_ptr<FileRegister> fileRegister,
+  boost::shared_ptr<OriginConnection> originConnection)
+{
+  std::scoped_lock lock(m_Mutex);
+
+  return createOriginNoLock(
+    originName, directory, priority, fileRegister, originConnection);
+}
+
+bool OriginConnection::exists(const std::wstring &name)
+{
+  std::scoped_lock lock(m_Mutex);
+  return m_OriginsNameMap.find(name) != m_OriginsNameMap.end();
+}
+
+FilesOrigin& OriginConnection::getByID(OriginID ID)
+{
+  std::scoped_lock lock(m_Mutex);
+  return m_Origins[ID];
+}
+
+const FilesOrigin* OriginConnection::findByID(OriginID ID) const
+{
+  std::scoped_lock lock(m_Mutex);
+
+  auto itor = m_Origins.find(ID);
+
+  if (itor == m_Origins.end()) {
+    return nullptr;
+  } else {
+    return &itor->second;
+  }
+}
+
+FilesOrigin& OriginConnection::getByName(const std::wstring &name)
+{
+  std::scoped_lock lock(m_Mutex);
+
+  auto iter = m_OriginsNameMap.find(name);
+
+  if (iter != m_OriginsNameMap.end()) {
+    return m_Origins[iter->second];
+  } else {
+    std::ostringstream stream;
+    stream << QObject::tr("invalid origin name: ").toStdString() << ToString(name, true);
+    throw std::runtime_error(stream.str());
+  }
+}
+
+void OriginConnection::changePriorityLookup(int oldPriority, int newPriority)
+{
+  std::scoped_lock lock(m_Mutex);
+
+  auto iter = m_OriginsPriorityMap.find(oldPriority);
+
+  if (iter != m_OriginsPriorityMap.end()) {
+    OriginID idx = iter->second;
+    m_OriginsPriorityMap.erase(iter);
+    m_OriginsPriorityMap[newPriority] = idx;
+  }
+}
+
+void OriginConnection::changeNameLookup(const std::wstring &oldName, const std::wstring &newName)
+{
+  std::scoped_lock lock(m_Mutex);
+
+  auto iter = m_OriginsNameMap.find(oldName);
+
+  if (iter != m_OriginsNameMap.end()) {
+    OriginID idx = iter->second;
+    m_OriginsNameMap.erase(iter);
+    m_OriginsNameMap[newName] = idx;
+  } else {
+    log::error(QObject::tr("failed to change name lookup from {} to {}").toStdString(), oldName, newName);
+  }
+}
+
+OriginID OriginConnection::createID()
+{
+  return m_NextID++;
+}
+
+FilesOrigin& OriginConnection::createOriginNoLock(
+  const std::wstring &originName, const std::wstring &directory, int priority,
+  boost::shared_ptr<FileRegister> fileRegister,
+  boost::shared_ptr<OriginConnection> originConnection)
+{
+  OriginID newID = createID();
+
+  auto itor = m_Origins.emplace(
+    std::piecewise_construct,
+    std::forward_as_tuple(newID),
+    std::forward_as_tuple(
+      newID, originName, directory, priority,
+      fileRegister, originConnection))
+    .first;
+
+  m_OriginsNameMap.insert({originName, newID});
+  m_OriginsPriorityMap.insert({priority, newID});
+
+  return itor->second;
+}
+
+} // namespace