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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 _FX_STREAM_H_ | 7 #ifndef _FX_STREAM_H_ |
8 #define _FX_STREAM_H_ | 8 #define _FX_STREAM_H_ |
9 #ifndef _FX_MEMORY_H_ | 9 #ifndef _FX_MEMORY_H_ |
10 #include "fx_memory.h" | 10 #include "fx_memory.h" |
11 #endif | 11 #endif |
12 void* FX_OpenFolder(FX_LPCSTR path); | 12 void* FX_OpenFolder(FX_LPCSTR path); |
13 void* FX_OpenFolder(FX_LPCWSTR path); | 13 void* FX_OpenFolder(FX_LPCWSTR 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 FX_DEFINEHANDLE(FX_HFILE) | 22 FX_DEFINEHANDLE(FX_HFILE) |
19 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ | 23 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_ |
20 #define FX_FILESIZE» » » FX_INT32 | 24 #define FX_FILESIZE FX_INT32 |
21 #else | 25 #else |
22 #include <fcntl.h> | 26 #include <fcntl.h> |
23 #include <unistd.h> | 27 #include <unistd.h> |
24 #include <sys/stat.h> | 28 #include <sys/stat.h> |
25 #ifndef O_BINARY | 29 #ifndef O_BINARY |
26 #define O_BINARY » » 0 | 30 #define O_BINARY 0 |
27 #endif | 31 #endif |
28 #ifndef O_LARGEFILE | 32 #ifndef O_LARGEFILE |
29 #define O_LARGEFILE» » 0 | 33 #define O_LARGEFILE 0 |
30 #endif | 34 #endif |
31 #define FX_FILESIZE» » » off_t | 35 #define FX_FILESIZE off_t |
32 #endif | 36 #endif |
33 typedef base::CheckedNumeric<FX_FILESIZE> FX_SAFE_FILESIZE; | 37 typedef base::CheckedNumeric<FX_FILESIZE> FX_SAFE_FILESIZE; |
34 #define FX_GETBYTEOFFSET32(a)» 0 | 38 #define FX_GETBYTEOFFSET32(a) 0 |
35 #define FX_GETBYTEOFFSET40(a)» 0 | 39 #define FX_GETBYTEOFFSET40(a) 0 |
36 #define FX_GETBYTEOFFSET48(a)» 0 | 40 #define FX_GETBYTEOFFSET48(a) 0 |
37 #define FX_GETBYTEOFFSET56(a)» 0 | 41 #define FX_GETBYTEOFFSET56(a) 0 |
38 #define FX_GETBYTEOFFSET24(a) ((FX_BYTE)(a>>24)) | 42 #define FX_GETBYTEOFFSET24(a) ((FX_BYTE)(a >> 24)) |
39 #define FX_GETBYTEOFFSET16(a) ((FX_BYTE)(a>>16)) | 43 #define FX_GETBYTEOFFSET16(a) ((FX_BYTE)(a >> 16)) |
40 #define FX_GETBYTEOFFSET8(a) ((FX_BYTE)(a>>8)) | 44 #define FX_GETBYTEOFFSET8(a) ((FX_BYTE)(a >> 8)) |
41 #define FX_GETBYTEOFFSET0(a) ((FX_BYTE)(a)) | 45 #define FX_GETBYTEOFFSET0(a) ((FX_BYTE)(a)) |
42 #define FX_FILEMODE_Write» » 0 | 46 #define FX_FILEMODE_Write 0 |
43 #define FX_FILEMODE_ReadOnly» 1 | 47 #define FX_FILEMODE_ReadOnly 1 |
44 #define FX_FILEMODE_Truncate» 2 | 48 #define FX_FILEMODE_Truncate 2 |
45 FX_HFILE» FX_File_Open(FX_BSTR fileName, FX_DWORD dwMode); | 49 FX_HFILE FX_File_Open(FX_BSTR fileName, FX_DWORD dwMode); |
46 FX_HFILE» FX_File_Open(FX_WSTR fileName, FX_DWORD dwMode); | 50 FX_HFILE FX_File_Open(FX_WSTR fileName, FX_DWORD dwMode); |
47 void» » FX_File_Close(FX_HFILE hFile); | 51 void FX_File_Close(FX_HFILE hFile); |
48 FX_FILESIZE» FX_File_GetSize(FX_HFILE hFile); | 52 FX_FILESIZE FX_File_GetSize(FX_HFILE hFile); |
49 FX_FILESIZE» FX_File_GetPosition(FX_HFILE hFile); | 53 FX_FILESIZE FX_File_GetPosition(FX_HFILE hFile); |
50 FX_FILESIZE» FX_File_SetPosition(FX_HFILE hFile, FX_FILESIZE pos); | 54 FX_FILESIZE FX_File_SetPosition(FX_HFILE hFile, FX_FILESIZE pos); |
51 size_t» » FX_File_Read(FX_HFILE hFile, void* pBuffer, size_t szBuffer); | 55 size_t FX_File_Read(FX_HFILE hFile, void* pBuffer, size_t szBuffer); |
52 size_t» » FX_File_ReadPos(FX_HFILE hFile, void* pBuffer, size_t szBuffer,
FX_FILESIZE pos); | 56 size_t FX_File_ReadPos(FX_HFILE hFile, |
53 size_t» » FX_File_Write(FX_HFILE hFile, const void* pBuffer, size_t szBuff
er); | 57 void* pBuffer, |
54 size_t» » FX_File_WritePos(FX_HFILE hFile, const void* pBuffer, size_t szB
uffer, FX_FILESIZE pos); | 58 size_t szBuffer, |
55 FX_BOOL»» FX_File_Flush(FX_HFILE hFile); | 59 FX_FILESIZE pos); |
56 FX_BOOL»» FX_File_Truncate(FX_HFILE hFile, FX_FILESIZE szFile); | 60 size_t FX_File_Write(FX_HFILE hFile, const void* pBuffer, size_t szBuffer); |
57 FX_BOOL»» FX_File_Exist(FX_BSTR fileName); | 61 size_t FX_File_WritePos(FX_HFILE hFile, |
58 FX_BOOL»» FX_File_Exist(FX_WSTR fileName); | 62 const void* pBuffer, |
59 FX_BOOL»» FX_File_Delete(FX_BSTR fileName); | 63 size_t szBuffer, |
60 FX_BOOL»» FX_File_Delete(FX_WSTR fileName); | 64 FX_FILESIZE pos); |
61 FX_BOOL»» FX_File_Copy(FX_BSTR fileNameSrc, FX_BSTR fileNameDst); | 65 FX_BOOL FX_File_Flush(FX_HFILE hFile); |
62 FX_BOOL»» FX_File_Copy(FX_WSTR fileNameSrc, FX_WSTR fileNameDst); | 66 FX_BOOL FX_File_Truncate(FX_HFILE hFile, FX_FILESIZE szFile); |
63 FX_BOOL»» FX_File_Move(FX_BSTR fileNameSrc, FX_BSTR fileNameDst); | 67 FX_BOOL FX_File_Exist(FX_BSTR fileName); |
64 FX_BOOL»» FX_File_Move(FX_WSTR fileNameSrc, FX_WSTR fileNameDst); | 68 FX_BOOL FX_File_Exist(FX_WSTR fileName); |
65 class IFX_StreamWrite | 69 FX_BOOL FX_File_Delete(FX_BSTR fileName); |
66 { | 70 FX_BOOL FX_File_Delete(FX_WSTR fileName); |
67 public: | 71 FX_BOOL FX_File_Copy(FX_BSTR fileNameSrc, FX_BSTR fileNameDst); |
| 72 FX_BOOL FX_File_Copy(FX_WSTR fileNameSrc, FX_WSTR fileNameDst); |
| 73 FX_BOOL FX_File_Move(FX_BSTR fileNameSrc, FX_BSTR fileNameDst); |
| 74 FX_BOOL FX_File_Move(FX_WSTR fileNameSrc, FX_WSTR fileNameDst); |
| 75 class IFX_StreamWrite { |
| 76 public: |
| 77 virtual void Release() = 0; |
68 | 78 |
69 virtual void» » Release() = 0; | 79 virtual FX_BOOL WriteBlock(const void* pData, size_t size) = 0; |
| 80 }; |
| 81 class IFX_FileWrite : public IFX_StreamWrite { |
| 82 public: |
| 83 virtual void Release() = 0; |
70 | 84 |
71 virtual» FX_BOOL»» WriteBlock(const void* pData, size_t size) = 0; | 85 virtual FX_FILESIZE GetSize() = 0; |
72 }; | |
73 class IFX_FileWrite : public IFX_StreamWrite | |
74 { | |
75 public: | |
76 | 86 |
77 virtual void» » » Release() = 0; | 87 virtual FX_BOOL Flush() = 0; |
78 | 88 |
79 virtual FX_FILESIZE»» GetSize() = 0; | 89 virtual FX_BOOL WriteBlock(const void* pData, |
80 | 90 FX_FILESIZE offset, |
81 virtual FX_BOOL» » » Flush() = 0; | 91 size_t size) = 0; |
82 | 92 virtual FX_BOOL WriteBlock(const void* pData, size_t size) { |
83 virtual» FX_BOOL»» » WriteBlock(const void* pData, FX_FILESIZ
E offset, size_t size) = 0; | 93 return WriteBlock(pData, GetSize(), size); |
84 virtual» FX_BOOL»» » WriteBlock(const void* pData, size_t siz
e) | 94 } |
85 { | |
86 return WriteBlock(pData, GetSize(), size); | |
87 } | |
88 }; | 95 }; |
89 IFX_FileWrite* FX_CreateFileWrite(FX_LPCSTR filename); | 96 IFX_FileWrite* FX_CreateFileWrite(FX_LPCSTR filename); |
90 IFX_FileWrite* FX_CreateFileWrite(FX_LPCWSTR filename); | 97 IFX_FileWrite* FX_CreateFileWrite(FX_LPCWSTR filename); |
91 class IFX_StreamRead | 98 class IFX_StreamRead { |
92 { | 99 public: |
93 public: | 100 virtual void Release() = 0; |
94 | 101 |
95 virtual void» » » Release() = 0; | 102 virtual FX_BOOL IsEOF() = 0; |
96 | 103 |
97 virtual FX_BOOL» » » IsEOF() = 0; | 104 virtual FX_FILESIZE GetPosition() = 0; |
98 | 105 |
99 virtual FX_FILESIZE»» GetPosition() = 0; | 106 virtual size_t ReadBlock(void* buffer, size_t size) = 0; |
| 107 }; |
| 108 class IFX_FileRead : IFX_StreamRead { |
| 109 public: |
| 110 virtual void Release() = 0; |
100 | 111 |
101 virtual size_t» » » ReadBlock(void* buffer, size_t size) = 0
; | 112 virtual FX_FILESIZE GetSize() = 0; |
102 }; | |
103 class IFX_FileRead : IFX_StreamRead | |
104 { | |
105 public: | |
106 | 113 |
107 virtual void» » » Release() = 0; | 114 virtual FX_BOOL IsEOF() { return FALSE; } |
108 | 115 |
109 virtual FX_FILESIZE»» GetSize() = 0; | 116 virtual FX_FILESIZE GetPosition() { return 0; } |
110 | 117 |
111 virtual FX_BOOL» » » IsEOF() | 118 virtual FX_BOOL SetRange(FX_FILESIZE offset, FX_FILESIZE size) { |
112 { | 119 return FALSE; |
113 return FALSE; | 120 } |
114 } | |
115 | 121 |
116 virtual FX_FILESIZE»» GetPosition() | 122 virtual void ClearRange() {} |
117 { | |
118 return 0; | |
119 } | |
120 | 123 |
121 virtual FX_BOOL» » » SetRange(FX_FILESIZE offset, FX_FILESIZE
size) | 124 virtual FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) = 0; |
122 { | |
123 return FALSE; | |
124 } | |
125 | 125 |
126 virtual void» » » ClearRange() {} | 126 virtual size_t ReadBlock(void* buffer, size_t size) { return 0; } |
127 | |
128 virtual FX_BOOL» » » ReadBlock(void* buffer, FX_FILESIZE offs
et, size_t size) = 0; | |
129 | |
130 virtual size_t» » » ReadBlock(void* buffer, size_t size) | |
131 { | |
132 return 0; | |
133 } | |
134 }; | 127 }; |
135 IFX_FileRead* FX_CreateFileRead(FX_LPCSTR filename); | 128 IFX_FileRead* FX_CreateFileRead(FX_LPCSTR filename); |
136 IFX_FileRead* FX_CreateFileRead(FX_LPCWSTR filename); | 129 IFX_FileRead* FX_CreateFileRead(FX_LPCWSTR filename); |
137 class IFX_FileStream : public IFX_FileRead, public IFX_FileWrite | 130 class IFX_FileStream : public IFX_FileRead, public IFX_FileWrite { |
138 { | 131 public: |
139 public: | 132 virtual IFX_FileStream* Retain() = 0; |
140 | 133 |
141 virtual IFX_FileStream*» » Retain() = 0; | 134 virtual void Release() = 0; |
142 | 135 |
143 virtual void» » » » Release() = 0; | 136 virtual FX_FILESIZE GetSize() = 0; |
144 | 137 |
145 virtual FX_FILESIZE»» » GetSize() = 0; | 138 virtual FX_BOOL IsEOF() = 0; |
146 | 139 |
147 virtual FX_BOOL» » » » IsEOF() = 0; | 140 virtual FX_FILESIZE GetPosition() = 0; |
148 | 141 |
149 virtual FX_FILESIZE»» » GetPosition() = 0; | 142 virtual FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) = 0; |
150 | 143 |
151 virtual FX_BOOL» » » » ReadBlock(void* buffer, FX_FILES
IZE offset, size_t size) = 0; | 144 virtual size_t ReadBlock(void* buffer, size_t size) = 0; |
152 | 145 |
153 virtual size_t» » » » ReadBlock(void* buffer, size_t s
ize) = 0; | 146 virtual FX_BOOL WriteBlock(const void* buffer, |
| 147 FX_FILESIZE offset, |
| 148 size_t size) = 0; |
| 149 virtual FX_BOOL WriteBlock(const void* buffer, size_t size) { |
| 150 return WriteBlock(buffer, GetSize(), size); |
| 151 } |
154 | 152 |
155 virtual» FX_BOOL»» » » WriteBlock(const void* buffer, F
X_FILESIZE offset, size_t size) = 0; | 153 virtual FX_BOOL Flush() = 0; |
156 virtual» FX_BOOL»» » » WriteBlock(const void* buffer, s
ize_t size) | 154 }; |
157 { | 155 IFX_FileStream* FX_CreateFileStream(FX_LPCSTR filename, FX_DWORD dwModes); |
158 return WriteBlock(buffer, GetSize(), size); | 156 IFX_FileStream* FX_CreateFileStream(FX_LPCWSTR filename, FX_DWORD dwModes); |
159 } | 157 class IFX_MemoryStream : public IFX_FileStream { |
| 158 public: |
| 159 virtual FX_BOOL IsConsecutive() const = 0; |
160 | 160 |
161 virtual FX_BOOL» » » » Flush() = 0; | 161 virtual void EstimateSize(size_t nInitSize, size_t nGrowSize) = 0; |
| 162 |
| 163 virtual FX_LPBYTE GetBuffer() const = 0; |
| 164 |
| 165 virtual void AttachBuffer(FX_LPBYTE pBuffer, |
| 166 size_t nSize, |
| 167 FX_BOOL bTakeOver = FALSE) = 0; |
| 168 |
| 169 virtual void DetachBuffer() = 0; |
162 }; | 170 }; |
163 IFX_FileStream*»» FX_CreateFileStream(FX_LPCSTR filename, FX_DWORD dwModes
); | 171 IFX_MemoryStream* FX_CreateMemoryStream(FX_LPBYTE pBuffer, |
164 IFX_FileStream*»» FX_CreateFileStream(FX_LPCWSTR filename, FX_DWORD dwMode
s); | 172 size_t nSize, |
165 class IFX_MemoryStream : public IFX_FileStream | 173 FX_BOOL bTakeOver = FALSE); |
166 { | 174 IFX_MemoryStream* FX_CreateMemoryStream(FX_BOOL bConsecutive = FALSE); |
167 public: | 175 class IFX_BufferRead : public IFX_StreamRead { |
| 176 public: |
| 177 virtual void Release() = 0; |
168 | 178 |
169 virtual FX_BOOL» » » IsConsecutive() const = 0; | 179 virtual FX_BOOL IsEOF() = 0; |
170 | 180 |
171 virtual void» » » EstimateSize(size_t nInitSize, size_t nG
rowSize) = 0; | 181 virtual FX_FILESIZE GetPosition() = 0; |
172 | 182 |
173 virtual FX_LPBYTE» » GetBuffer() const = 0; | 183 virtual size_t ReadBlock(void* buffer, size_t size) = 0; |
174 | 184 |
175 virtual void» » » AttachBuffer(FX_LPBYTE pBuffer, size_t n
Size, FX_BOOL bTakeOver = FALSE) = 0; | 185 virtual FX_BOOL ReadNextBlock(FX_BOOL bRestart = FALSE) = 0; |
176 | 186 |
177 virtual void» » » DetachBuffer() = 0; | 187 virtual FX_LPCBYTE GetBlockBuffer() = 0; |
178 }; | |
179 IFX_MemoryStream*» FX_CreateMemoryStream(FX_LPBYTE pBuffer, size_t nSize, F
X_BOOL bTakeOver = FALSE); | |
180 IFX_MemoryStream*» FX_CreateMemoryStream(FX_BOOL bConsecutive = FALSE); | |
181 class IFX_BufferRead : public IFX_StreamRead | |
182 { | |
183 public: | |
184 | 188 |
185 virtual void» » » Release() = 0; | 189 virtual size_t GetBlockSize() = 0; |
186 | 190 |
187 virtual FX_BOOL» » » IsEOF() = 0; | 191 virtual FX_FILESIZE GetBlockOffset() = 0; |
188 | |
189 virtual FX_FILESIZE»» GetPosition() = 0; | |
190 | |
191 virtual size_t» » » ReadBlock(void* buffer, size_t size) = 0
; | |
192 | |
193 virtual FX_BOOL» » » ReadNextBlock(FX_BOOL bRestart = FALSE)
= 0; | |
194 | |
195 virtual FX_LPCBYTE» » GetBlockBuffer() = 0; | |
196 | |
197 virtual size_t» » » GetBlockSize() = 0; | |
198 | |
199 virtual FX_FILESIZE»» GetBlockOffset() = 0; | |
200 }; | 192 }; |
201 #endif | 193 #endif |
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