wip

net/url_request/url_request_file_job.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef NET_URL_REQUEST_URL_REQUEST_FILE_JOB_H_
 #define NET_URL_REQUEST_URL_REQUEST_FILE_JOB_H_
 
 #include <stdint.h>
 
 #include <memory>
@@ skipping 27 matching lines @@
                     const scoped_refptr<base::TaskRunner>& file_task_runner);
 
   // URLRequestJob:
   void Start() override;
   void Kill() override;
   int ReadRawData(IOBuffer* buf, int buf_size) override;
   bool IsRedirectResponse(GURL* location, int* http_status_code) override;
   bool GetMimeType(std::string* mime_type) const override;
   void SetExtraRequestHeaders(const HttpRequestHeaders& headers) override;
 
+ protected:
+  // Meta information about the file. It's used as a member in the
+  // URLRequestFileJob and also passed between threads because disk access is
+  // necessary to obtain it.
+  struct FileMetaInfo {
+    FileMetaInfo();
+
+    // Size of the file.
+    int64_t file_size;
+    // Mime type associated with the file.
+    std::string mime_type;
+    // Result returned from GetMimeTypeFromFile(), i.e. flag showing whether
+    // obtaining of the mime type was successful.
+    bool mime_type_result;
+    // Flag showing whether the file exists.
+    bool file_exists;
+    // Flag showing whether the file name actually refers to a directory.
+    bool is_directory;
+    // Absolute path of the file (i.e. symbolic link is resolved).
+    base::FilePath absolute_path;
+  };
+
   // An interface for subclasses who wish to monitor read operations.
   //
+  // ...
+  virtual bool OnFetchMetaInfo(const FileMetaInfo& meta_info);
   // |result| is the net::Error code resulting from attempting to open the file.
   // Called before OnSeekComplete, only called if the request advanced to the
   // point the file was opened, without being canceled.
   virtual void OnOpenComplete(int result);
   // Called at most once.  On success, |result| is the non-negative offset into
   // the file that the request will read from.  On seek failure, it's a negative
   // net:Error code.
   virtual void OnSeekComplete(int64_t result);
   // Called once per read attempt.  |buf| contains the read data, if any.
   // |result| is the number of read bytes.  0 (net::OK) indicates EOF, negative
   // numbers indicate it's a net::Error code.
   virtual void OnReadComplete(IOBuffer* buf, int result);
 
- protected:
   ~URLRequestFileJob() override;
 
   // URLRequestJob implementation.
   std::unique_ptr<SourceStream> SetUpSourceStream() override;
 
   int64_t remaining_bytes() const { return remaining_bytes_; }
 
   // The OS-specific full path name of the file
   base::FilePath file_path_;
 
  private:
-  // Meta information about the file. It's used as a member in the
-  // URLRequestFileJob and also passed between threads because disk access is
-  // necessary to obtain it.
-  struct FileMetaInfo {
-    FileMetaInfo();
-
-    // Size of the file.
-    int64_t file_size;
-    // Mime type associated with the file.
-    std::string mime_type;
-    // Result returned from GetMimeTypeFromFile(), i.e. flag showing whether
-    // obtaining of the mime type was successful.
-    bool mime_type_result;
-    // Flag showing whether the file exists.
-    bool file_exists;
-    // Flag showing whether the file name actually refers to a directory.
-    bool is_directory;
-  };
-
   // Fetches file info on a background thread.
   static void FetchMetaInfo(const base::FilePath& file_path,
                             FileMetaInfo* meta_info);
 
   // Callback after fetching file info on a background thread.
   void DidFetchMetaInfo(const FileMetaInfo* meta_info);
 
   // Callback after opening file on a background thread.
   void DidOpen(int result);
 
@@ skipping 15 matching lines @@
   Error range_parse_result_;
 
   base::WeakPtrFactory<URLRequestFileJob> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(URLRequestFileJob);
 };
 
 }  // namespace net
 
 #endif  // NET_URL_REQUEST_URL_REQUEST_FILE_JOB_H_