third_party/WebKit/Source/platform/FileMetadata.h

   1 /*
   2  * Copyright (C) 2010 Google Inc. All rights reserved.
   3  *
   4  * Redistribution and use in source and binary forms, with or without
   5  * modification, are permitted provided that the following conditions are
   6  * met:
   7  *
   8  *     * Redistributions of source code must retain the above copyright
   9  * notice, this list of conditions and the following disclaimer.
  10  *     * Redistributions in binary form must reproduce the above
  11  * copyright notice, this list of conditions and the following disclaimer
  12  * in the documentation and/or other materials provided with the
  13  * distribution.
  14  *     * Neither the name of Google Inc. nor the names of its
  15  * contributors may be used to endorse or promote products derived from
  16  * this software without specific prior written permission.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  29  */
  30
  31 #ifndef FileMetadata_h
  32 #define FileMetadata_h
  33
  34 #include "platform/PlatformExport.h"
  35 #include "platform/weborigin/KURL.h"
  36 #include "wtf/MathExtras.h"
  37 #include "wtf/text/WTFString.h"
  38 #include <time.h>
  39
  40 namespace blink {
  41
  42 inline double invalidFileTime() { return std::numeric_limits<double>::quiet_NaN(); }
  43 inline bool isValidFileTime(double time) { return std::isfinite(time); }
  44
  45 class FileMetadata {
  46 public:
  47     FileMetadata()
  48         : modificationTime(invalidFileTime())
  49         , length(-1)
  50         , type(TypeUnknown)
  51     {
  52     }
  53
  54     // The last modification time of the file, in milliseconds.
  55     // The value NaN means that the time is not known.
  56     double modificationTime;
  57
  58     // The length of the file in bytes.
  59     // The value -1 means that the length is not set.
  60     long long length;
  61
  62     enum Type {
  63         TypeUnknown = 0,
  64         TypeFile,
  65         TypeDirectory
  66     };
  67
  68     Type type;
  69     String platformPath;
  70 };
  71
  72 PLATFORM_EXPORT bool getFileSize(const String&, long long& result);
  73 PLATFORM_EXPORT bool getFileModificationTime(const String&, double& result);
  74 PLATFORM_EXPORT bool getFileMetadata(const String&, FileMetadata&);
  75 PLATFORM_EXPORT String directoryName(const String&);
  76 PLATFORM_EXPORT KURL filePathToURL(const String&);
  77
  78 } // namespace blink
  79
  80 #endif // FileMetadata_h