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Side by Side Diff: base/files/file_proxy.h

Issue 1549853002: Switch to standard integer types in base/files/. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master
Patch Set: fix Created 4 years, 12 months ago
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1 // Copyright 2014 The Chromium Authors. All rights reserved. 1 // Copyright 2014 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef BASE_FILES_FILE_PROXY_H_ 5 #ifndef BASE_FILES_FILE_PROXY_H_
6 #define BASE_FILES_FILE_PROXY_H_ 6 #define BASE_FILES_FILE_PROXY_H_
7 7
8 #include <stdint.h>
9
8 #include "base/base_export.h" 10 #include "base/base_export.h"
9 #include "base/callback_forward.h" 11 #include "base/callback_forward.h"
10 #include "base/files/file.h" 12 #include "base/files/file.h"
11 #include "base/files/file_path.h" 13 #include "base/files/file_path.h"
14 #include "base/macros.h"
12 #include "base/memory/ref_counted.h" 15 #include "base/memory/ref_counted.h"
13 #include "base/memory/weak_ptr.h" 16 #include "base/memory/weak_ptr.h"
14 17
15 namespace tracked_objects { 18 namespace tracked_objects {
16 class Location; 19 class Location;
17 }; 20 };
18 21
19 namespace base { 22 namespace base {
20 23
21 class TaskRunner; 24 class TaskRunner;
(...skipping 35 matching lines...) Expand 10 before | Expand all | Expand 10 after
57 explicit FileProxy(TaskRunner* task_runner); 60 explicit FileProxy(TaskRunner* task_runner);
58 ~FileProxy(); 61 ~FileProxy();
59 62
60 // Creates or opens a file with the given flags. It is invalid to pass a null 63 // Creates or opens a file with the given flags. It is invalid to pass a null
61 // callback. If File::FLAG_CREATE is set in |file_flags| it always tries to 64 // callback. If File::FLAG_CREATE is set in |file_flags| it always tries to
62 // create a new file at the given |file_path| and fails if the file already 65 // create a new file at the given |file_path| and fails if the file already
63 // exists. 66 // exists.
64 // 67 //
65 // This returns false if task posting to |task_runner| has failed. 68 // This returns false if task posting to |task_runner| has failed.
66 bool CreateOrOpen(const FilePath& file_path, 69 bool CreateOrOpen(const FilePath& file_path,
67 uint32 file_flags, 70 uint32_t file_flags,
68 const StatusCallback& callback); 71 const StatusCallback& callback);
69 72
70 // Creates a temporary file for writing. The path and an open file are 73 // Creates a temporary file for writing. The path and an open file are
71 // returned. It is invalid to pass a null callback. The additional file flags 74 // returned. It is invalid to pass a null callback. The additional file flags
72 // will be added on top of the default file flags which are: 75 // will be added on top of the default file flags which are:
73 // File::FLAG_CREATE_ALWAYS 76 // File::FLAG_CREATE_ALWAYS
74 // File::FLAG_WRITE 77 // File::FLAG_WRITE
75 // File::FLAG_TEMPORARY. 78 // File::FLAG_TEMPORARY.
76 // 79 //
77 // This returns false if task posting to |task_runner| has failed. 80 // This returns false if task posting to |task_runner| has failed.
78 bool CreateTemporary(uint32 additional_file_flags, 81 bool CreateTemporary(uint32_t additional_file_flags,
79 const CreateTemporaryCallback& callback); 82 const CreateTemporaryCallback& callback);
80 83
81 // Returns true if the underlying |file_| is valid. 84 // Returns true if the underlying |file_| is valid.
82 bool IsValid() const; 85 bool IsValid() const;
83 86
84 // Returns true if a new file was created (or an old one truncated to zero 87 // Returns true if a new file was created (or an old one truncated to zero
85 // length to simulate a new file), and false otherwise. 88 // length to simulate a new file), and false otherwise.
86 bool created() const { return file_.created(); } 89 bool created() const { return file_.created(); }
87 90
88 // Claims ownership of |file|. It is an error to call this method when 91 // Claims ownership of |file|. It is an error to call this method when
89 // IsValid() returns true. 92 // IsValid() returns true.
90 void SetFile(File file); 93 void SetFile(File file);
91 94
92 File TakeFile(); 95 File TakeFile();
93 96
94 PlatformFile GetPlatformFile() const; 97 PlatformFile GetPlatformFile() const;
95 98
96 // Proxies File::Close. The callback can be null. 99 // Proxies File::Close. The callback can be null.
97 // This returns false if task posting to |task_runner| has failed. 100 // This returns false if task posting to |task_runner| has failed.
98 bool Close(const StatusCallback& callback); 101 bool Close(const StatusCallback& callback);
99 102
100 // Proxies File::GetInfo. The callback can't be null. 103 // Proxies File::GetInfo. The callback can't be null.
101 // This returns false if task posting to |task_runner| has failed. 104 // This returns false if task posting to |task_runner| has failed.
102 bool GetInfo(const GetFileInfoCallback& callback); 105 bool GetInfo(const GetFileInfoCallback& callback);
103 106
104 // Proxies File::Read. The callback can't be null. 107 // Proxies File::Read. The callback can't be null.
105 // This returns false if |bytes_to_read| is less than zero, or 108 // This returns false if |bytes_to_read| is less than zero, or
106 // if task posting to |task_runner| has failed. 109 // if task posting to |task_runner| has failed.
107 bool Read(int64 offset, int bytes_to_read, const ReadCallback& callback); 110 bool Read(int64_t offset, int bytes_to_read, const ReadCallback& callback);
108 111
109 // Proxies File::Write. The callback can be null. 112 // Proxies File::Write. The callback can be null.
110 // This returns false if |bytes_to_write| is less than or equal to zero, 113 // This returns false if |bytes_to_write| is less than or equal to zero,
111 // if |buffer| is NULL, or if task posting to |task_runner| has failed. 114 // if |buffer| is NULL, or if task posting to |task_runner| has failed.
112 bool Write(int64 offset, 115 bool Write(int64_t offset,
113 const char* buffer, 116 const char* buffer,
114 int bytes_to_write, 117 int bytes_to_write,
115 const WriteCallback& callback); 118 const WriteCallback& callback);
116 119
117 // Proxies File::SetTimes. The callback can be null. 120 // Proxies File::SetTimes. The callback can be null.
118 // This returns false if task posting to |task_runner| has failed. 121 // This returns false if task posting to |task_runner| has failed.
119 bool SetTimes(Time last_access_time, 122 bool SetTimes(Time last_access_time,
120 Time last_modified_time, 123 Time last_modified_time,
121 const StatusCallback& callback); 124 const StatusCallback& callback);
122 125
123 // Proxies File::SetLength. The callback can be null. 126 // Proxies File::SetLength. The callback can be null.
124 // This returns false if task posting to |task_runner| has failed. 127 // This returns false if task posting to |task_runner| has failed.
125 bool SetLength(int64 length, const StatusCallback& callback); 128 bool SetLength(int64_t length, const StatusCallback& callback);
126 129
127 // Proxies File::Flush. The callback can be null. 130 // Proxies File::Flush. The callback can be null.
128 // This returns false if task posting to |task_runner| has failed. 131 // This returns false if task posting to |task_runner| has failed.
129 bool Flush(const StatusCallback& callback); 132 bool Flush(const StatusCallback& callback);
130 133
131 private: 134 private:
132 friend class FileHelper; 135 friend class FileHelper;
133 TaskRunner* task_runner() { return task_runner_.get(); } 136 TaskRunner* task_runner() { return task_runner_.get(); }
134 137
135 scoped_refptr<TaskRunner> task_runner_; 138 scoped_refptr<TaskRunner> task_runner_;
136 File file_; 139 File file_;
137 DISALLOW_COPY_AND_ASSIGN(FileProxy); 140 DISALLOW_COPY_AND_ASSIGN(FileProxy);
138 }; 141 };
139 142
140 } // namespace base 143 } // namespace base
141 144
142 #endif // BASE_FILES_FILE_PROXY_H_ 145 #endif // BASE_FILES_FILE_PROXY_H_
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