1 // Copyright 2014 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6
7 #include "../../include/fxcrt/fx_ext.h"
8 #include "fxcrt_platforms.h"
9 #if (_FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ && _FXM_PLATFORM_ != _FXM_PLATFORM_LINUX_ && _FXM_PLATFORM_ != _FXM_PLATFORM_APPLE_ && _FXM_PLATFORM_ != _FXM_PLATFORM_ANDROID_)
FXCRT_FileAccess_Create()10 IFXCRT_FileAccess* FXCRT_FileAccess_Create()
11 {
12 return new CFXCRT_FileAccess_CRT;
13 }
FXCRT_GetFileModeString(FX_DWORD dwModes,CFX_ByteString & bsMode)14 void FXCRT_GetFileModeString(FX_DWORD dwModes, CFX_ByteString &bsMode)
15 {
16 if (dwModes & FX_FILEMODE_ReadOnly) {
17 bsMode = FX_BSTRC("rb");
18 } else if (dwModes & FX_FILEMODE_Truncate) {
19 bsMode = FX_BSTRC("w+b");
20 } else {
21 bsMode = FX_BSTRC("a+b");
22 }
23 }
FXCRT_GetFileModeString(FX_DWORD dwModes,CFX_WideString & wsMode)24 void FXCRT_GetFileModeString(FX_DWORD dwModes, CFX_WideString &wsMode)
25 {
26 if (dwModes & FX_FILEMODE_ReadOnly) {
27 wsMode = FX_WSTRC(L"rb");
28 } else if (dwModes & FX_FILEMODE_Truncate) {
29 wsMode = FX_WSTRC(L"w+b");
30 } else {
31 wsMode = FX_WSTRC(L"a+b");
32 }
33 }
CFXCRT_FileAccess_CRT()34 CFXCRT_FileAccess_CRT::CFXCRT_FileAccess_CRT()
35 : m_hFile(NULL)
36 {
37 }
~CFXCRT_FileAccess_CRT()38 CFXCRT_FileAccess_CRT::~CFXCRT_FileAccess_CRT()
39 {
40 Close();
41 }
Open(FX_BSTR fileName,FX_DWORD dwMode)42 FX_BOOL CFXCRT_FileAccess_CRT::Open(FX_BSTR fileName, FX_DWORD dwMode)
43 {
44 if (m_hFile) {
45 return FALSE;
46 }
47 CFX_ByteString strMode;
48 FXCRT_GetFileModeString(dwMode, strMode);
49 m_hFile = FXSYS_fopen(fileName.GetCStr(), strMode.c_str());
50 return m_hFile != NULL;
51 }
Open(FX_WSTR fileName,FX_DWORD dwMode)52 FX_BOOL CFXCRT_FileAccess_CRT::Open(FX_WSTR fileName, FX_DWORD dwMode)
53 {
54 if (m_hFile) {
55 return FALSE;
56 }
57 CFX_WideString strMode;
58 FXCRT_GetFileModeString(dwMode, strMode);
59 m_hFile = FXSYS_wfopen(fileName.GetPtr(), strMode.c_str());
60 return m_hFile != NULL;
61 }
Close()62 void CFXCRT_FileAccess_CRT::Close()
63 {
64 if (!m_hFile) {
65 return;
66 }
67 FXSYS_fclose(m_hFile);
68 m_hFile = NULL;
69 }
Release()70 void CFXCRT_FileAccess_CRT::Release()
71 {
72 delete this;
73 }
GetSize() const74 FX_FILESIZE CFXCRT_FileAccess_CRT::GetSize() const
75 {
76 if (!m_hFile) {
77 return 0;
78 }
79 FX_FILESIZE pos = (FX_FILESIZE)FXSYS_ftell(m_hFile);
80 FXSYS_fseek(m_hFile, 0, FXSYS_SEEK_END);
81 FX_FILESIZE size = (FX_FILESIZE)FXSYS_ftell(m_hFile);
82 FXSYS_fseek(m_hFile, pos, FXSYS_SEEK_SET);
83 return size;
84 }
GetPosition() const85 FX_FILESIZE CFXCRT_FileAccess_CRT::GetPosition() const
86 {
87 if (!m_hFile) {
88 return (FX_FILESIZE) - 1;
89 }
90 return (FX_FILESIZE)FXSYS_ftell(m_hFile);
91 }
SetPosition(FX_FILESIZE pos)92 FX_FILESIZE CFXCRT_FileAccess_CRT::SetPosition(FX_FILESIZE pos)
93 {
94 if (!m_hFile) {
95 return (FX_FILESIZE) - 1;
96 }
97 FXSYS_fseek(m_hFile, pos, FXSYS_SEEK_SET);
98 return (FX_FILESIZE)FXSYS_ftell(m_hFile);
99 }
Read(void * pBuffer,size_t szBuffer)100 size_t CFXCRT_FileAccess_CRT::Read(void* pBuffer, size_t szBuffer)
101 {
102 if (!m_hFile) {
103 return 0;
104 }
105 return FXSYS_fread(pBuffer, 1, szBuffer, m_hFile);
106 }
Write(const void * pBuffer,size_t szBuffer)107 size_t CFXCRT_FileAccess_CRT::Write(const void* pBuffer, size_t szBuffer)
108 {
109 if (!m_hFile) {
110 return 0;
111 }
112 return FXSYS_fwrite(pBuffer, 1, szBuffer, m_hFile);
113 }
ReadPos(void * pBuffer,size_t szBuffer,FX_FILESIZE pos)114 size_t CFXCRT_FileAccess_CRT::ReadPos(void* pBuffer, size_t szBuffer, FX_FILESIZE pos)
115 {
116 if (!m_hFile) {
117 return (FX_FILESIZE) - 1;
118 }
119 FXSYS_fseek(m_hFile, pos, FXSYS_SEEK_SET);
120 return FXSYS_fread(pBuffer, 1, szBuffer, m_hFile);
121 }
WritePos(const void * pBuffer,size_t szBuffer,FX_FILESIZE pos)122 size_t CFXCRT_FileAccess_CRT::WritePos(const void* pBuffer, size_t szBuffer, FX_FILESIZE pos)
123 {
124 if (!m_hFile) {
125 return (FX_FILESIZE) - 1;
126 }
127 FXSYS_fseek(m_hFile, pos, FXSYS_SEEK_SET);
128 return FXSYS_fwrite(pBuffer, 1, szBuffer, m_hFile);
129 }
Flush()130 FX_BOOL CFXCRT_FileAccess_CRT::Flush()
131 {
132 if (!m_hFile) {
133 return FALSE;
134 }
135 return !FXSYS_fflush(m_hFile);
136 }
Truncate(FX_FILESIZE szFile)137 FX_BOOL CFXCRT_FileAccess_CRT::Truncate(FX_FILESIZE szFile)
138 {
139 return FALSE;
140 }
FX_File_Exist(FX_BSTR fileName)141 FX_BOOL FX_File_Exist(FX_BSTR fileName)
142 {
143 return access(fileName.GetCStr(), F_OK) > -1;
144 }
FX_File_Exist(FX_WSTR fileName)145 FX_BOOL FX_File_Exist(FX_WSTR fileName)
146 {
147 return FX_File_Exist(FX_UTF8Encode(fileName));
148 }
FX_File_Delete(FX_BSTR fileName)149 FX_BOOL FX_File_Delete(FX_BSTR fileName)
150 {
151 return remove(fileName.GetCStr()) > -1;
152 }
FX_File_Delete(FX_WSTR fileName)153 FX_BOOL FX_File_Delete(FX_WSTR fileName)
154 {
155 return FX_File_Delete(FX_UTF8Encode(fileName));
156 }
FX_File_Copy(FX_BSTR fileNameSrc,FX_BSTR fileNameDst)157 FX_BOOL FX_File_Copy(FX_BSTR fileNameSrc, FX_BSTR fileNameDst)
158 {
159 CFXCRT_FileAccess_CRT src, dst;
160 if (!src.Open(fileNameSrc, FX_FILEMODE_ReadOnly)) {
161 return FALSE;
162 }
163 FX_FILESIZE size = src.GetSize();
164 if (!size) {
165 return FALSE;
166 }
167 if (!dst.Open(fileNameDst, FX_FILEMODE_Truncate)) {
168 return FALSE;
169 }
170 FX_FILESIZE num = 0;
171 FX_LPBYTE pBuffer = FX_Alloc(FX_BYTE, 32768);
172 while (num = src.Read(pBuffer, 32768)) {
173 if (dst.Write(pBuffer, num) != num) {
174 break;
175 }
176 }
177 FX_Free(pBuffer);
178 return TRUE;
179 }
FX_File_Copy(FX_WSTR fileNameSrc,FX_WSTR fileNameDst)180 FX_BOOL FX_File_Copy(FX_WSTR fileNameSrc, FX_WSTR fileNameDst)
181 {
182 return FX_File_Copy(FX_UTF8Encode(fileNameSrc), FX_UTF8Encode(fileNameDst));
183 }
FX_File_Move(FX_BSTR fileNameSrc,FX_BSTR fileNameDst)184 FX_BOOL FX_File_Move(FX_BSTR fileNameSrc, FX_BSTR fileNameDst)
185 {
186 return rename(fileNameSrc.GetCStr(), fileNameDst.GetCStr());
187 }
FX_File_Move(FX_WSTR fileNameSrc,FX_WSTR fileNameDst)188 FX_BOOL FX_File_Move(FX_WSTR fileNameSrc, FX_WSTR fileNameDst)
189 {
190 return FX_File_Move(FX_UTF8Encode(fileNameSrc), FX_UTF8Encode(fileNameDst));
191 }
192 #endif
193