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1 // Copyright 2014 PDFium Authors. All rights reserved. | 1 // Copyright 2014 PDFium 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 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
6 | 6 |
7 #ifndef CORE_INCLUDE_FXCRT_FX_STREAM_H_ | 7 #ifndef CORE_INCLUDE_FXCRT_FX_STREAM_H_ |
8 #define CORE_INCLUDE_FXCRT_FX_STREAM_H_ | 8 #define CORE_INCLUDE_FXCRT_FX_STREAM_H_ |
9 | 9 |
10 #include "fx_string.h" | 10 #include "fx_string.h" |
11 | 11 |
12 void* FX_OpenFolder(const FX_CHAR* path); | 12 void* FX_OpenFolder(const FX_CHAR* path); |
13 void* FX_OpenFolder(const FX_WCHAR* path); | 13 void* FX_OpenFolder(const FX_WCHAR* path); |
14 FX_BOOL FX_GetNextFile(void* handle, CFX_ByteString& filename, FX_BOOL& bFolder)
; | 14 FX_BOOL FX_GetNextFile(void* handle, |
15 FX_BOOL FX_GetNextFile(void* handle, CFX_WideString& filename, FX_BOOL& bFolder)
; | 15 CFX_ByteString& filename, |
| 16 FX_BOOL& bFolder); |
| 17 FX_BOOL FX_GetNextFile(void* handle, |
| 18 CFX_WideString& filename, |
| 19 FX_BOOL& bFolder); |
16 void FX_CloseFolder(void* handle); | 20 void FX_CloseFolder(void* handle); |
17 FX_WCHAR FX_GetFolderSeparator(); | 21 FX_WCHAR FX_GetFolderSeparator(); |
18 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ | 22 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ |
19 #define FX_FILESIZE» » » int32_t | 23 #define FX_FILESIZE int32_t |
20 #else | 24 #else |
21 #include <fcntl.h> | 25 #include <fcntl.h> |
22 #include <unistd.h> | 26 #include <unistd.h> |
23 #include <sys/stat.h> | 27 #include <sys/stat.h> |
24 #ifndef O_BINARY | 28 #ifndef O_BINARY |
25 #define O_BINARY » » 0 | 29 #define O_BINARY 0 |
26 #endif | 30 #endif |
27 #ifndef O_LARGEFILE | 31 #ifndef O_LARGEFILE |
28 #define O_LARGEFILE» » 0 | 32 #define O_LARGEFILE 0 |
29 #endif | 33 #endif |
30 #define FX_FILESIZE» » » off_t | 34 #define FX_FILESIZE off_t |
31 #endif | 35 #endif |
32 #define FX_GETBYTEOFFSET32(a)» 0 | 36 #define FX_GETBYTEOFFSET32(a) 0 |
33 #define FX_GETBYTEOFFSET40(a)» 0 | 37 #define FX_GETBYTEOFFSET40(a) 0 |
34 #define FX_GETBYTEOFFSET48(a)» 0 | 38 #define FX_GETBYTEOFFSET48(a) 0 |
35 #define FX_GETBYTEOFFSET56(a)» 0 | 39 #define FX_GETBYTEOFFSET56(a) 0 |
36 #define FX_GETBYTEOFFSET24(a) ((uint8_t)(a>>24)) | 40 #define FX_GETBYTEOFFSET24(a) ((uint8_t)(a >> 24)) |
37 #define FX_GETBYTEOFFSET16(a) ((uint8_t)(a>>16)) | 41 #define FX_GETBYTEOFFSET16(a) ((uint8_t)(a >> 16)) |
38 #define FX_GETBYTEOFFSET8(a) ((uint8_t)(a>>8)) | 42 #define FX_GETBYTEOFFSET8(a) ((uint8_t)(a >> 8)) |
39 #define FX_GETBYTEOFFSET0(a) ((uint8_t)(a)) | 43 #define FX_GETBYTEOFFSET0(a) ((uint8_t)(a)) |
40 #define FX_FILEMODE_Write» » 0 | 44 #define FX_FILEMODE_Write 0 |
41 #define FX_FILEMODE_ReadOnly» 1 | 45 #define FX_FILEMODE_ReadOnly 1 |
42 #define FX_FILEMODE_Truncate» 2 | 46 #define FX_FILEMODE_Truncate 2 |
43 FX_BOOL»» FX_File_Exist(const CFX_ByteStringC& fileName); | 47 FX_BOOL FX_File_Exist(const CFX_ByteStringC& fileName); |
44 FX_BOOL»» FX_File_Exist(const CFX_WideStringC& fileName); | 48 FX_BOOL FX_File_Exist(const CFX_WideStringC& fileName); |
45 FX_BOOL»» FX_File_Delete(const CFX_ByteStringC& fileName); | 49 FX_BOOL FX_File_Delete(const CFX_ByteStringC& fileName); |
46 FX_BOOL»» FX_File_Delete(const CFX_WideStringC& fileName); | 50 FX_BOOL FX_File_Delete(const CFX_WideStringC& fileName); |
47 FX_BOOL»» FX_File_Copy(const CFX_ByteStringC& fileNameSrc, const CFX_ByteS
tringC& fileNameDst); | 51 FX_BOOL FX_File_Copy(const CFX_ByteStringC& fileNameSrc, |
48 FX_BOOL»» FX_File_Copy(const CFX_WideStringC& fileNameSrc, const CFX_WideS
tringC& fileNameDst); | 52 const CFX_ByteStringC& fileNameDst); |
49 FX_BOOL»» FX_File_Move(const CFX_ByteStringC& fileNameSrc, const CFX_ByteS
tringC& fileNameDst); | 53 FX_BOOL FX_File_Copy(const CFX_WideStringC& fileNameSrc, |
50 FX_BOOL»» FX_File_Move(const CFX_WideStringC& fileNameSrc, const CFX_WideS
tringC& fileNameDst); | 54 const CFX_WideStringC& fileNameDst); |
51 class IFX_StreamWrite | 55 FX_BOOL FX_File_Move(const CFX_ByteStringC& fileNameSrc, |
52 { | 56 const CFX_ByteStringC& fileNameDst); |
53 public: | 57 FX_BOOL FX_File_Move(const CFX_WideStringC& fileNameSrc, |
54 virtual ~IFX_StreamWrite() { } | 58 const CFX_WideStringC& fileNameDst); |
55 virtual void» » Release() = 0; | 59 class IFX_StreamWrite { |
| 60 public: |
| 61 virtual ~IFX_StreamWrite() {} |
| 62 virtual void Release() = 0; |
56 | 63 |
57 virtual» FX_BOOL»» WriteBlock(const void* pData, size_t size) = 0; | 64 virtual FX_BOOL WriteBlock(const void* pData, size_t size) = 0; |
58 }; | 65 }; |
59 class IFX_FileWrite : public IFX_StreamWrite | 66 class IFX_FileWrite : public IFX_StreamWrite { |
60 { | 67 public: |
61 public: | 68 virtual void Release() = 0; |
62 | 69 |
63 virtual void» » » Release() = 0; | 70 virtual FX_FILESIZE GetSize() = 0; |
64 | 71 |
65 virtual FX_FILESIZE»» GetSize() = 0; | 72 virtual FX_BOOL Flush() = 0; |
66 | 73 |
67 virtual FX_BOOL» » » Flush() = 0; | 74 virtual FX_BOOL WriteBlock(const void* pData, |
68 | 75 FX_FILESIZE offset, |
69 virtual» FX_BOOL»» » WriteBlock(const void* pData, FX_FILESIZ
E offset, size_t size) = 0; | 76 size_t size) = 0; |
70 virtual» FX_BOOL»» » WriteBlock(const void* pData, size_t siz
e) | 77 virtual FX_BOOL WriteBlock(const void* pData, size_t size) { |
71 { | 78 return WriteBlock(pData, GetSize(), size); |
72 return WriteBlock(pData, GetSize(), size); | 79 } |
73 } | |
74 }; | 80 }; |
75 IFX_FileWrite* FX_CreateFileWrite(const FX_CHAR* filename); | 81 IFX_FileWrite* FX_CreateFileWrite(const FX_CHAR* filename); |
76 IFX_FileWrite* FX_CreateFileWrite(const FX_WCHAR* filename); | 82 IFX_FileWrite* FX_CreateFileWrite(const FX_WCHAR* filename); |
77 class IFX_StreamRead | 83 class IFX_StreamRead { |
78 { | 84 public: |
79 public: | 85 virtual ~IFX_StreamRead() {} |
80 virtual ~IFX_StreamRead() { } | |
81 | 86 |
82 virtual void» » » Release() = 0; | 87 virtual void Release() = 0; |
83 | 88 |
84 virtual FX_BOOL» » » IsEOF() = 0; | 89 virtual FX_BOOL IsEOF() = 0; |
85 | 90 |
86 virtual FX_FILESIZE»» GetPosition() = 0; | 91 virtual FX_FILESIZE GetPosition() = 0; |
87 | 92 |
88 virtual size_t» » » ReadBlock(void* buffer, size_t size) = 0
; | 93 virtual size_t ReadBlock(void* buffer, size_t size) = 0; |
89 }; | 94 }; |
90 class IFX_FileRead : IFX_StreamRead | 95 class IFX_FileRead : IFX_StreamRead { |
91 { | 96 public: |
92 public: | 97 virtual void Release() = 0; |
93 virtual void» » » Release() = 0; | |
94 | 98 |
95 virtual FX_FILESIZE»» GetSize() = 0; | 99 virtual FX_FILESIZE GetSize() = 0; |
96 | 100 |
97 virtual FX_BOOL» » » IsEOF() | 101 virtual FX_BOOL IsEOF() { return FALSE; } |
98 { | |
99 return FALSE; | |
100 } | |
101 | 102 |
102 virtual FX_FILESIZE»» GetPosition() | 103 virtual FX_FILESIZE GetPosition() { return 0; } |
103 { | |
104 return 0; | |
105 } | |
106 | 104 |
107 virtual FX_BOOL» » » SetRange(FX_FILESIZE offset, FX_FILESIZE
size) | 105 virtual FX_BOOL SetRange(FX_FILESIZE offset, FX_FILESIZE size) { |
108 { | 106 return FALSE; |
109 return FALSE; | 107 } |
110 } | |
111 | 108 |
112 virtual void» » » ClearRange() {} | 109 virtual void ClearRange() {} |
113 | 110 |
114 virtual FX_BOOL» » » ReadBlock(void* buffer, FX_FILESIZE offs
et, size_t size) = 0; | 111 virtual FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) = 0; |
115 | 112 |
116 virtual size_t» » » ReadBlock(void* buffer, size_t size) | 113 virtual size_t ReadBlock(void* buffer, size_t size) { return 0; } |
117 { | |
118 return 0; | |
119 } | |
120 }; | 114 }; |
121 IFX_FileRead* FX_CreateFileRead(const FX_CHAR* filename); | 115 IFX_FileRead* FX_CreateFileRead(const FX_CHAR* filename); |
122 IFX_FileRead* FX_CreateFileRead(const FX_WCHAR* filename); | 116 IFX_FileRead* FX_CreateFileRead(const FX_WCHAR* filename); |
123 class IFX_FileStream : public IFX_FileRead, public IFX_FileWrite | 117 class IFX_FileStream : public IFX_FileRead, public IFX_FileWrite { |
124 { | 118 public: |
125 public: | 119 virtual IFX_FileStream* Retain() = 0; |
126 | 120 |
127 virtual IFX_FileStream*» » Retain() = 0; | 121 virtual void Release() = 0; |
128 | 122 |
129 virtual void» » » » Release() = 0; | 123 virtual FX_FILESIZE GetSize() = 0; |
130 | 124 |
131 virtual FX_FILESIZE»» » GetSize() = 0; | 125 virtual FX_BOOL IsEOF() = 0; |
132 | 126 |
133 virtual FX_BOOL» » » » IsEOF() = 0; | 127 virtual FX_FILESIZE GetPosition() = 0; |
134 | 128 |
135 virtual FX_FILESIZE»» » GetPosition() = 0; | 129 virtual FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) = 0; |
136 | 130 |
137 virtual FX_BOOL» » » » ReadBlock(void* buffer, FX_FILES
IZE offset, size_t size) = 0; | 131 virtual size_t ReadBlock(void* buffer, size_t size) = 0; |
138 | 132 |
139 virtual size_t» » » » ReadBlock(void* buffer, size_t s
ize) = 0; | 133 virtual FX_BOOL WriteBlock(const void* buffer, |
| 134 FX_FILESIZE offset, |
| 135 size_t size) = 0; |
| 136 virtual FX_BOOL WriteBlock(const void* buffer, size_t size) { |
| 137 return WriteBlock(buffer, GetSize(), size); |
| 138 } |
140 | 139 |
141 virtual» FX_BOOL»» » » WriteBlock(const void* buffer, F
X_FILESIZE offset, size_t size) = 0; | 140 virtual FX_BOOL Flush() = 0; |
142 virtual» FX_BOOL»» » » WriteBlock(const void* buffer, s
ize_t size) | 141 }; |
143 { | 142 IFX_FileStream* FX_CreateFileStream(const FX_CHAR* filename, FX_DWORD dwModes); |
144 return WriteBlock(buffer, GetSize(), size); | 143 IFX_FileStream* FX_CreateFileStream(const FX_WCHAR* filename, FX_DWORD dwModes); |
145 } | 144 class IFX_MemoryStream : public IFX_FileStream { |
| 145 public: |
| 146 virtual FX_BOOL IsConsecutive() const = 0; |
146 | 147 |
147 virtual FX_BOOL» » » » Flush() = 0; | 148 virtual void EstimateSize(size_t nInitSize, size_t nGrowSize) = 0; |
| 149 |
| 150 virtual uint8_t* GetBuffer() const = 0; |
| 151 |
| 152 virtual void AttachBuffer(uint8_t* pBuffer, |
| 153 size_t nSize, |
| 154 FX_BOOL bTakeOver = FALSE) = 0; |
| 155 |
| 156 virtual void DetachBuffer() = 0; |
148 }; | 157 }; |
149 IFX_FileStream*»» FX_CreateFileStream(const FX_CHAR* filename, FX_DWORD dw
Modes); | 158 IFX_MemoryStream* FX_CreateMemoryStream(uint8_t* pBuffer, |
150 IFX_FileStream*»» FX_CreateFileStream(const FX_WCHAR* filename, FX_DWORD d
wModes); | 159 size_t nSize, |
151 class IFX_MemoryStream : public IFX_FileStream | 160 FX_BOOL bTakeOver = FALSE); |
152 { | 161 IFX_MemoryStream* FX_CreateMemoryStream(FX_BOOL bConsecutive = FALSE); |
153 public: | 162 class IFX_BufferRead : public IFX_StreamRead { |
| 163 public: |
| 164 virtual void Release() = 0; |
154 | 165 |
155 virtual FX_BOOL» » » IsConsecutive() const = 0; | 166 virtual FX_BOOL IsEOF() = 0; |
156 | 167 |
157 virtual void» » » EstimateSize(size_t nInitSize, size_t nG
rowSize) = 0; | 168 virtual FX_FILESIZE GetPosition() = 0; |
158 | 169 |
159 virtual uint8_t*» » GetBuffer() const = 0; | 170 virtual size_t ReadBlock(void* buffer, size_t size) = 0; |
160 | 171 |
161 virtual void» » » AttachBuffer(uint8_t* pBuffer, size_t nS
ize, FX_BOOL bTakeOver = FALSE) = 0; | 172 virtual FX_BOOL ReadNextBlock(FX_BOOL bRestart = FALSE) = 0; |
162 | 173 |
163 virtual void» » » DetachBuffer() = 0; | 174 virtual const uint8_t* GetBlockBuffer() = 0; |
164 }; | |
165 IFX_MemoryStream*» FX_CreateMemoryStream(uint8_t* pBuffer, size_t nSize, FX
_BOOL bTakeOver = FALSE); | |
166 IFX_MemoryStream*» FX_CreateMemoryStream(FX_BOOL bConsecutive = FALSE); | |
167 class IFX_BufferRead : public IFX_StreamRead | |
168 { | |
169 public: | |
170 | 175 |
171 virtual void» » » Release() = 0; | 176 virtual size_t GetBlockSize() = 0; |
172 | 177 |
173 virtual FX_BOOL» » » IsEOF() = 0; | 178 virtual FX_FILESIZE GetBlockOffset() = 0; |
174 | |
175 virtual FX_FILESIZE»» GetPosition() = 0; | |
176 | |
177 virtual size_t» » » ReadBlock(void* buffer, size_t size) = 0
; | |
178 | |
179 virtual FX_BOOL» » » ReadNextBlock(FX_BOOL bRestart = FALSE)
= 0; | |
180 | |
181 virtual const uint8_t*» » GetBlockBuffer() = 0; | |
182 | |
183 virtual size_t» » » GetBlockSize() = 0; | |
184 | |
185 virtual FX_FILESIZE»» GetBlockOffset() = 0; | |
186 }; | 179 }; |
187 | 180 |
188 #endif // CORE_INCLUDE_FXCRT_FX_STREAM_H_ | 181 #endif // CORE_INCLUDE_FXCRT_FX_STREAM_H_ |
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