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authortsepez <tsepez@chromium.org>2016-10-24 10:19:11 -0700
committerCommit bot <commit-bot@chromium.org>2016-10-24 10:19:11 -0700
commitad2441ef675866eb84c7392eeda03391a5a5d474 (patch)
tree5b250139c65d5f440f3b544643b1fb85e23380dd /core/fxcrt/fx_stream.h
parentb674ebe6dd13288160ad8e324d719a124caf5a83 (diff)
downloadpdfium-ad2441ef675866eb84c7392eeda03391a5a5d474.tar.xz
Rename IFX_ stream nameschromium/2900
It's been troubling for some time that an IFX_FileStream might actually be an in-memory buffer with no backing file. Review-Url: https://codereview.chromium.org/2443723002
Diffstat (limited to 'core/fxcrt/fx_stream.h')
-rw-r--r--core/fxcrt/fx_stream.h59
1 files changed, 31 insertions, 28 deletions
diff --git a/core/fxcrt/fx_stream.h b/core/fxcrt/fx_stream.h
index 047fedf9bb..2509ec2cd7 100644
--- a/core/fxcrt/fx_stream.h
+++ b/core/fxcrt/fx_stream.h
@@ -55,16 +55,26 @@ FX_WCHAR FX_GetFolderSeparator();
#define FX_FILEMODE_ReadOnly 1
#define FX_FILEMODE_Truncate 2
-class IFX_StreamWrite {
+class IFX_WriteStream {
public:
- virtual ~IFX_StreamWrite() {}
+ virtual ~IFX_WriteStream() {}
virtual void Release() = 0;
virtual FX_BOOL WriteBlock(const void* pData, size_t size) = 0;
};
-class IFX_FileWrite : public IFX_StreamWrite {
+class IFX_ReadStream {
public:
- // IFX_StreamWrite:
+ virtual ~IFX_ReadStream() {}
+
+ virtual void Release() = 0;
+ virtual FX_BOOL IsEOF() = 0;
+ virtual FX_FILESIZE GetPosition() = 0;
+ virtual size_t ReadBlock(void* buffer, size_t size) = 0;
+};
+
+class IFX_SeekableWriteStream : public IFX_WriteStream {
+ public:
+ // IFX_WriteStream:
FX_BOOL WriteBlock(const void* pData, size_t size) override;
virtual FX_FILESIZE GetSize() = 0;
virtual FX_BOOL Flush() = 0;
@@ -73,19 +83,9 @@ class IFX_FileWrite : public IFX_StreamWrite {
size_t size) = 0;
};
-class IFX_StreamRead {
- public:
- virtual ~IFX_StreamRead() {}
-
- virtual void Release() = 0;
- virtual FX_BOOL IsEOF() = 0;
- virtual FX_FILESIZE GetPosition() = 0;
- virtual size_t ReadBlock(void* buffer, size_t size) = 0;
-};
-
-class IFX_FileRead : public IFX_StreamRead {
+class IFX_SeekableReadStream : public IFX_ReadStream {
public:
- // IFX_StreamRead:
+ // IFX_ReadStream:
void Release() override = 0;
FX_BOOL IsEOF() override;
FX_FILESIZE GetPosition() override;
@@ -95,14 +95,15 @@ class IFX_FileRead : public IFX_StreamRead {
virtual FX_FILESIZE GetSize() = 0;
};
-IFX_FileRead* FX_CreateFileRead(const FX_CHAR* filename);
-IFX_FileRead* FX_CreateFileRead(const FX_WCHAR* filename);
+IFX_SeekableReadStream* FX_CreateFileRead(const FX_CHAR* filename);
+IFX_SeekableReadStream* FX_CreateFileRead(const FX_WCHAR* filename);
-class IFX_FileStream : public IFX_FileRead, public IFX_FileWrite {
+class IFX_SeekableStream : public IFX_SeekableReadStream,
+ public IFX_SeekableWriteStream {
public:
- virtual IFX_FileStream* Retain() = 0;
+ virtual IFX_SeekableStream* Retain() = 0;
- // IFX_FileRead:
+ // IFX_SeekableReadStream:
void Release() override = 0;
FX_BOOL IsEOF() override = 0;
FX_FILESIZE GetPosition() override = 0;
@@ -110,7 +111,7 @@ class IFX_FileStream : public IFX_FileRead, public IFX_FileWrite {
FX_BOOL ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override = 0;
FX_FILESIZE GetSize() override = 0;
- // IFX_FileWrite:
+ // IFX_SeekableWriteStream:
FX_BOOL WriteBlock(const void* buffer,
FX_FILESIZE offset,
size_t size) override = 0;
@@ -118,8 +119,10 @@ class IFX_FileStream : public IFX_FileRead, public IFX_FileWrite {
FX_BOOL Flush() override = 0;
};
-IFX_FileStream* FX_CreateFileStream(const FX_CHAR* filename, uint32_t dwModes);
-IFX_FileStream* FX_CreateFileStream(const FX_WCHAR* filename, uint32_t dwModes);
+IFX_SeekableStream* FX_CreateFileStream(const FX_CHAR* filename,
+ uint32_t dwModes);
+IFX_SeekableStream* FX_CreateFileStream(const FX_WCHAR* filename,
+ uint32_t dwModes);
#ifdef PDF_ENABLE_XFA
class IFX_FileAccess {
@@ -128,12 +131,12 @@ class IFX_FileAccess {
virtual void Release() = 0;
virtual IFX_FileAccess* Retain() = 0;
virtual void GetPath(CFX_WideString& wsPath) = 0;
- virtual IFX_FileStream* CreateFileStream(uint32_t dwModes) = 0;
+ virtual IFX_SeekableStream* CreateFileStream(uint32_t dwModes) = 0;
};
IFX_FileAccess* FX_CreateDefaultFileAccess(const CFX_WideStringC& wsPath);
#endif // PDF_ENABLE_XFA
-class IFX_MemoryStream : public IFX_FileStream {
+class IFX_MemoryStream : public IFX_SeekableStream {
public:
virtual FX_BOOL IsConsecutive() const = 0;
virtual void EstimateSize(size_t nInitSize, size_t nGrowSize) = 0;
@@ -149,9 +152,9 @@ IFX_MemoryStream* FX_CreateMemoryStream(uint8_t* pBuffer,
FX_BOOL bTakeOver = FALSE);
IFX_MemoryStream* FX_CreateMemoryStream(FX_BOOL bConsecutive = FALSE);
-class IFX_BufferRead : public IFX_StreamRead {
+class IFX_BufferRead : public IFX_ReadStream {
public:
- // IFX_StreamRead:
+ // IFX_ReadStream:
void Release() override = 0;
FX_BOOL IsEOF() override = 0;
FX_FILESIZE GetPosition() override = 0;