core/fxcrt/fxcrt_platforms.cpp - Issue 1994323002: Remove Release() from IFXCRT_FileAccess

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Issue 1994323002: Remove Release() from IFXCRT_FileAccess (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master

Patch Set: include <utility>. Created 4 years, 7 months ago

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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 "core/fxcrt/fxcrt_platforms.h"

8

9 #include "core/fxcrt/include/fx_basic.h"

10

11 #if (_FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ && \

12 _FXM_PLATFORM_ != _FXM_PLATFORM_LINUX_ && \

13 _FXM_PLATFORM_ != _FXM_PLATFORM_APPLE_ && \

14 _FXM_PLATFORM_ != _FXM_PLATFORM_ANDROID_)

15 IFXCRT_FileAccess* FXCRT_FileAccess_Create() {

16 return new CFXCRT_FileAccess_CRT;

17 }

18 void FXCRT_GetFileModeString(uint32_t dwModes, CFX_ByteString& bsMode) {

19 if (dwModes & FX_FILEMODE_ReadOnly) {

20 bsMode = "rb";

21 } else if (dwModes & FX_FILEMODE_Truncate) {

22 bsMode = "w+b";

23 } else {

24 bsMode = "a+b";

25 }

26 }

27 void FXCRT_GetFileModeString(uint32_t dwModes, CFX_WideString& wsMode) {

28 if (dwModes & FX_FILEMODE_ReadOnly) {

29 wsMode = FX_WSTRC(L"rb");

30 } else if (dwModes & FX_FILEMODE_Truncate) {

31 wsMode = FX_WSTRC(L"w+b");

32 } else {

33 wsMode = FX_WSTRC(L"a+b");

34 }

35 }

36 CFXCRT_FileAccess_CRT::CFXCRT_FileAccess_CRT() : m_hFile(NULL) {}

37 CFXCRT_FileAccess_CRT::~CFXCRT_FileAccess_CRT() {

38 Close();

39 }

40 FX_BOOL CFXCRT_FileAccess_CRT::Open(const CFX_ByteStringC& fileName,

41 uint32_t dwMode) {

42 if (m_hFile) {

43 return FALSE;

44 }

45 CFX_ByteString strMode;

46 FXCRT_GetFileModeString(dwMode, strMode);

47 m_hFile = FXSYS_fopen(fileName.c_str(), strMode.c_str());

48 return m_hFile != NULL;

49 }

50 FX_BOOL CFXCRT_FileAccess_CRT::Open(const CFX_WideStringC& fileName,

51 uint32_t dwMode) {

52 if (m_hFile) {

53 return FALSE;

54 }

55 CFX_WideString strMode;

56 FXCRT_GetFileModeString(dwMode, strMode);

57 m_hFile = FXSYS_wfopen(fileName.raw_str(), strMode.c_str());

58 return m_hFile != NULL;

59 }

60 void CFXCRT_FileAccess_CRT::Close() {

61 if (!m_hFile) {

62 return;

63 }

64 FXSYS_fclose(m_hFile);

65 m_hFile = NULL;

66 }

67 void CFXCRT_FileAccess_CRT::Release() {

68 delete this;

69 }

70 FX_FILESIZE CFXCRT_FileAccess_CRT::GetSize() const {

71 if (!m_hFile) {

72 return 0;

73 }

74 FX_FILESIZE pos = (FX_FILESIZE)FXSYS_ftell(m_hFile);

75 FXSYS_fseek(m_hFile, 0, FXSYS_SEEK_END);

76 FX_FILESIZE size = (FX_FILESIZE)FXSYS_ftell(m_hFile);

77 FXSYS_fseek(m_hFile, pos, FXSYS_SEEK_SET);

78 return size;

79 }

80 FX_FILESIZE CFXCRT_FileAccess_CRT::GetPosition() const {

81 if (!m_hFile) {

82 return (FX_FILESIZE)-1;

83 }

84 return (FX_FILESIZE)FXSYS_ftell(m_hFile);

85 }

86 FX_FILESIZE CFXCRT_FileAccess_CRT::SetPosition(FX_FILESIZE pos) {

87 if (!m_hFile) {

88 return (FX_FILESIZE)-1;

89 }

90 FXSYS_fseek(m_hFile, pos, FXSYS_SEEK_SET);

91 return (FX_FILESIZE)FXSYS_ftell(m_hFile);

92 }

93 size_t CFXCRT_FileAccess_CRT::Read(void* pBuffer, size_t szBuffer) {

94 if (!m_hFile) {

95 return 0;

96 }

97 return FXSYS_fread(pBuffer, 1, szBuffer, m_hFile);

98 }

99 size_t CFXCRT_FileAccess_CRT::Write(const void* pBuffer, size_t szBuffer) {

100 if (!m_hFile) {

101 return 0;

102 }

103 return FXSYS_fwrite(pBuffer, 1, szBuffer, m_hFile);

104 }

105 size_t CFXCRT_FileAccess_CRT::ReadPos(void* pBuffer,

106 size_t szBuffer,

107 FX_FILESIZE pos) {

108 if (!m_hFile) {

109 return (FX_FILESIZE)-1;

110 }

111 FXSYS_fseek(m_hFile, pos, FXSYS_SEEK_SET);

112 return FXSYS_fread(pBuffer, 1, szBuffer, m_hFile);

113 }

114 size_t CFXCRT_FileAccess_CRT::WritePos(const void* pBuffer,

115 size_t szBuffer,

116 FX_FILESIZE pos) {

117 if (!m_hFile) {

118 return (FX_FILESIZE)-1;

119 }

120 FXSYS_fseek(m_hFile, pos, FXSYS_SEEK_SET);

121 return FXSYS_fwrite(pBuffer, 1, szBuffer, m_hFile);

122 }

123 FX_BOOL CFXCRT_FileAccess_CRT::Flush() {

124 if (!m_hFile) {

125 return FALSE;

126 }

127 return !FXSYS_fflush(m_hFile);

128 }

129 FX_BOOL CFXCRT_FileAccess_CRT::Truncate(FX_FILESIZE szFile) {

130 return FALSE;

131 }

132 #endif

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