Delete httpclient.c and related files.

webrtc/base/diskcache.h

-/*
- *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
- *
- *  Use of this source code is governed by a BSD-style license
- *  that can be found in the LICENSE file in the root of the source
- *  tree. An additional intellectual property rights grant can be found
- *  in the file PATENTS.  All contributing project authors may
- *  be found in the AUTHORS file in the root of the source tree.
- */
-
-#ifndef WEBRTC_BASE_DISKCACHE_H__
-#define WEBRTC_BASE_DISKCACHE_H__
-
-#include <map>
-#include <string>
-
-#if defined(WEBRTC_WIN)
-#undef UnlockResource
-#endif  // WEBRTC_WIN 
-
-namespace rtc {
-
-class StreamInterface;
-
-///////////////////////////////////////////////////////////////////////////////
-// DiskCache - An LRU cache of streams, stored on disk.
-//
-// Streams are identified by a unique resource id.  Multiple streams can be
-// associated with each resource id, distinguished by an index.  When old
-// resources are flushed from the cache, all streams associated with those
-// resources are removed together.
-// DiskCache is designed to persist across executions of the program.  It is
-// safe for use from an arbitrary number of users on a single thread, but not
-// from multiple threads or other processes.
-///////////////////////////////////////////////////////////////////////////////
-
-class DiskCache {
-public:
-  DiskCache();
-  virtual ~DiskCache();
-
-  bool Initialize(const std::string& folder, size_t size);
-  bool Purge();
-
-  bool LockResource(const std::string& id);
-  StreamInterface* WriteResource(const std::string& id, size_t index);
-  bool UnlockResource(const std::string& id);
-
-  StreamInterface* ReadResource(const std::string& id, size_t index) const;
-
-  bool HasResource(const std::string& id) const;
-  bool HasResourceStream(const std::string& id, size_t index) const;
-  bool DeleteResource(const std::string& id);
-
- protected:
-  virtual bool InitializeEntries() = 0;
-  virtual bool PurgeFiles() = 0;
-
-  virtual bool FileExists(const std::string& filename) const = 0;
-  virtual bool DeleteFile(const std::string& filename) const = 0;
-
-  enum LockState { LS_UNLOCKED, LS_LOCKED, LS_UNLOCKING };
-  struct Entry {
-    LockState lock_state;
-    mutable size_t accessors;
-    size_t size;
-    size_t streams;
-    time_t last_modified;
-  };
-  typedef std::map<std::string, Entry> EntryMap;
-  friend class DiskCacheAdapter;
-
-  bool CheckLimit();
-
-  std::string IdToFilename(const std::string& id, size_t index) const;
-  bool FilenameToId(const std::string& filename, std::string* id,
-                    size_t* index) const;
-
-  const Entry* GetEntry(const std::string& id) const {
-    return const_cast<DiskCache*>(this)->GetOrCreateEntry(id, false);
-  }
-  Entry* GetOrCreateEntry(const std::string& id, bool create);
-
-  void ReleaseResource(const std::string& id, size_t index) const;
-
-  std::string folder_;
-  size_t max_cache_, total_size_;
-  EntryMap map_;
-  mutable size_t total_accessors_;
-};
-
-///////////////////////////////////////////////////////////////////////////////
-// CacheLock - Automatically manage locking and unlocking, with optional
-// rollback semantics
-///////////////////////////////////////////////////////////////////////////////
-
-class CacheLock {
-public:
-  CacheLock(DiskCache* cache, const std::string& id, bool rollback = false)
-  : cache_(cache), id_(id), rollback_(rollback)
-  {
-    locked_ = cache_->LockResource(id_);
-  }
-  ~CacheLock() {
-    if (locked_) {
-      cache_->UnlockResource(id_);
-      if (rollback_) {
-        cache_->DeleteResource(id_);
-      }
-    }
-  }
-  bool IsLocked() const { return locked_; }
-  void Commit() { rollback_ = false; }
-
-private:
-  DiskCache* cache_;
-  std::string id_;
-  bool rollback_, locked_;
-};
-
-///////////////////////////////////////////////////////////////////////////////
-
-}  // namespace rtc
-
-#endif // WEBRTC_BASE_DISKCACHE_H__