MemoryCache.cpp

#include "MemoryCache.h"
 
 
Cogs::Core::TerrainProvider::MemoryCache::~MemoryCache()
{
}
 
bool Cogs::Core::TerrainProvider::MemoryCache::getTile(Memory::MemoryBuffer& contents, MimeType& kind, const TileId& id)
{
  Cogs::LockGuard guard(mutex);
 
  if (auto it = items.find(tileKey(id)); it != items.end()) {
    auto& item = it->second;
    kind = item.mimeType;
    contents.resize(item.contents.size(), false);
    std::memcpy(contents.data(), item.contents.data(), item.contents.size());
    return true;
  }
  return false;
}
 
bool Cogs::Core::TerrainProvider::MemoryCache::storeTile(const Memory::MemoryBuffer& contents, MimeType kind, const TileId& id, StringView /*debugLog*/)
{
  if (contents.size() == 0) return true;
 
  Cogs::LockGuard guard(mutex);
  if (auto it = items.find(tileKey(id)); it != items.end()) {
    auto& item = it->second;
    item.mimeType = kind;
    item.contents.resize(contents.size());
    std::memcpy(item.contents.data(), contents.data(),contents.size());
  }
  else {
    Item item{
      kind,
      Cogs::Memory::MemoryBuffer()
    };
    item.mimeType = kind;
    item.contents.resize(contents.size());
    std::memcpy(item.contents.data(), contents.data(), contents.size());
    items[tileKey(id)] = std::move(item);
  }
  return true;
}