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Unified Diff: xfa/fgas/crt/fgas_stream.cpp

Issue 2451493002: Refcount all the IFX_ stream classes all the time. (Closed)
Patch Set: Clean up cast expression Created 4 years ago
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Index: xfa/fgas/crt/fgas_stream.cpp
diff --git a/xfa/fgas/crt/fgas_stream.cpp b/xfa/fgas/crt/fgas_stream.cpp
index 18d8e0bfe1b62fb1173e316a9d09cf7bbc65aef2..3ccb6521413470369f34adecfa8a79d18d6951c3 100644
--- a/xfa/fgas/crt/fgas_stream.cpp
+++ b/xfa/fgas/crt/fgas_stream.cpp
@@ -14,6 +14,7 @@
#include <algorithm>
#include <memory>
+#include "third_party/base/ptr_util.h"
#include "xfa/fgas/crt/fgas_codepage.h"
namespace {
@@ -100,7 +101,8 @@ class CFGAS_FileReadStreamImp : public IFGAS_StreamImp {
CFGAS_FileReadStreamImp();
~CFGAS_FileReadStreamImp() override {}
- bool LoadFileRead(IFX_SeekableReadStream* pFileRead, uint32_t dwAccess);
+ bool LoadFileRead(const CFX_RetainPtr<IFX_SeekableReadStream>& pFileRead,
+ uint32_t dwAccess);
// IFGAS_StreamImp:
int32_t GetLength() const override;
@@ -119,7 +121,7 @@ class CFGAS_FileReadStreamImp : public IFGAS_StreamImp {
bool SetLength(int32_t iLength) override { return false; }
protected:
- IFX_SeekableReadStream* m_pFileRead;
+ CFX_RetainPtr<IFX_SeekableReadStream> m_pFileRead;
int32_t m_iPosition;
int32_t m_iLength;
};
@@ -129,10 +131,9 @@ class CFGAS_BufferReadStreamImp : public IFGAS_StreamImp {
CFGAS_BufferReadStreamImp();
~CFGAS_BufferReadStreamImp() override;
- bool LoadBufferRead(IFX_BufferedReadStream* pBufferRead,
+ bool LoadBufferRead(const CFX_RetainPtr<IFX_BufferedReadStream>& pBufferRead,
int32_t iFileSize,
- uint32_t dwAccess,
- bool bReleaseBufferRead);
+ uint32_t dwAccess);
// IFGAS_StreamImp:
int32_t GetLength() const override;
@@ -151,8 +152,7 @@ class CFGAS_BufferReadStreamImp : public IFGAS_StreamImp {
bool SetLength(int32_t iLength) override { return false; }
private:
- IFX_BufferedReadStream* m_pBufferRead;
- bool m_bReleaseBufferRead;
+ CFX_RetainPtr<IFX_BufferedReadStream> m_pBufferRead;
int32_t m_iPosition;
int32_t m_iBufferSize;
};
@@ -162,7 +162,8 @@ class CFGAS_FileWriteStreamImp : public IFGAS_StreamImp {
CFGAS_FileWriteStreamImp();
~CFGAS_FileWriteStreamImp() override {}
- bool LoadFileWrite(IFX_SeekableWriteStream* pFileWrite, uint32_t dwAccess);
+ bool LoadFileWrite(const CFX_RetainPtr<IFX_SeekableWriteStream>& pFileWrite,
+ uint32_t dwAccess);
// IFGAS_StreamImp:
int32_t GetLength() const override;
@@ -179,7 +180,7 @@ class CFGAS_FileWriteStreamImp : public IFGAS_StreamImp {
bool SetLength(int32_t iLength) override { return false; }
protected:
- IFX_SeekableWriteStream* m_pFileWrite;
+ CFX_RetainPtr<IFX_SeekableWriteStream> m_pFileWrite;
int32_t m_iPosition;
};
@@ -198,12 +199,13 @@ class CFGAS_Stream : public IFGAS_Stream {
bool LoadFile(const FX_WCHAR* pszSrcFileName, uint32_t dwAccess);
bool LoadBuffer(uint8_t* pData, int32_t iTotalSize, uint32_t dwAccess);
- bool LoadFileRead(IFX_SeekableReadStream* pFileRead, uint32_t dwAccess);
- bool LoadFileWrite(IFX_SeekableWriteStream* pFileWrite, uint32_t dwAccess);
- bool LoadBufferRead(IFX_BufferedReadStream* pBufferRead,
+ bool LoadFileRead(const CFX_RetainPtr<IFX_SeekableReadStream>& pFileRead,
+ uint32_t dwAccess);
+ bool LoadFileWrite(const CFX_RetainPtr<IFX_SeekableWriteStream>& pFileWrite,
+ uint32_t dwAccess);
+ bool LoadBufferRead(const CFX_RetainPtr<IFX_BufferedReadStream>& pBufferRead,
int32_t iFileSize,
- uint32_t dwAccess,
- bool bReleaseBufferRead);
+ uint32_t dwAccess);
// IFGAS_Stream
void Release() override;
@@ -277,15 +279,17 @@ class CFGAS_TextStream : public IFGAS_Stream {
class CFGAS_FileRead : public IFX_SeekableReadStream {
public:
- CFGAS_FileRead(IFGAS_Stream* pStream, bool bReleaseStream);
+ static CFX_RetainPtr<CFGAS_FileRead> Create(IFGAS_Stream* pStream,
+ bool bReleaseStream);
~CFGAS_FileRead() override;
// IFX_SeekableReadStream
- void Release() override;
FX_FILESIZE GetSize() override;
bool ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override;
protected:
+ CFGAS_FileRead(IFGAS_Stream* pStream, bool bReleaseStream);
+
bool m_bReleaseStream;
IFGAS_Stream* m_pStream;
};
@@ -322,8 +326,9 @@ bool FileSetSize(FXSYS_FILE* file, int32_t size) {
} // namespace
// static
-IFGAS_Stream* IFGAS_Stream::CreateStream(IFX_SeekableReadStream* pFileRead,
- uint32_t dwAccess) {
+IFGAS_Stream* IFGAS_Stream::CreateStream(
+ const CFX_RetainPtr<IFX_SeekableReadStream>& pFileRead,
+ uint32_t dwAccess) {
CFGAS_Stream* pSR = new CFGAS_Stream;
if (!pSR->LoadFileRead(pFileRead, dwAccess)) {
pSR->Release();
@@ -336,8 +341,9 @@ IFGAS_Stream* IFGAS_Stream::CreateStream(IFX_SeekableReadStream* pFileRead,
}
// static
-IFGAS_Stream* IFGAS_Stream::CreateStream(IFX_SeekableWriteStream* pFileWrite,
- uint32_t dwAccess) {
+IFGAS_Stream* IFGAS_Stream::CreateStream(
+ const CFX_RetainPtr<IFX_SeekableWriteStream>& pFileWrite,
+ uint32_t dwAccess) {
CFGAS_Stream* pSR = new CFGAS_Stream;
if (!pSR->LoadFileWrite(pFileWrite, dwAccess)) {
pSR->Release();
@@ -534,18 +540,22 @@ bool CFGAS_FileStreamImp::SetLength(int32_t iLength) {
m_iLength = FileLength(m_hFile);
return bRet;
}
+
CFGAS_FileReadStreamImp::CFGAS_FileReadStreamImp()
: m_pFileRead(nullptr), m_iPosition(0), m_iLength(0) {}
-bool CFGAS_FileReadStreamImp::LoadFileRead(IFX_SeekableReadStream* pFileRead,
- uint32_t dwAccess) {
+
+bool CFGAS_FileReadStreamImp::LoadFileRead(
+ const CFX_RetainPtr<IFX_SeekableReadStream>& pFileRead,
+ uint32_t dwAccess) {
ASSERT(!m_pFileRead && pFileRead);
- if (dwAccess & FX_STREAMACCESS_Write) {
+ if (dwAccess & FX_STREAMACCESS_Write)
return false;
- }
+
m_pFileRead = pFileRead;
m_iLength = m_pFileRead->GetSize();
return true;
}
+
int32_t CFGAS_FileReadStreamImp::GetLength() const {
return m_iLength;
}
@@ -600,34 +610,28 @@ int32_t CFGAS_FileReadStreamImp::ReadString(FX_WCHAR* pStr,
bEOS = (m_iPosition >= m_iLength) || pStr[i] == L'\0';
return i;
}
+
CFGAS_BufferReadStreamImp::CFGAS_BufferReadStreamImp()
- : m_pBufferRead(nullptr),
- m_bReleaseBufferRead(false),
- m_iPosition(0),
- m_iBufferSize(0) {}
-CFGAS_BufferReadStreamImp::~CFGAS_BufferReadStreamImp() {
- if (m_bReleaseBufferRead && m_pBufferRead) {
- m_pBufferRead->Release();
- }
-}
+ : m_iPosition(0), m_iBufferSize(0) {}
+
+CFGAS_BufferReadStreamImp::~CFGAS_BufferReadStreamImp() {}
+
bool CFGAS_BufferReadStreamImp::LoadBufferRead(
- IFX_BufferedReadStream* pBufferRead,
+ const CFX_RetainPtr<IFX_BufferedReadStream>& pBufferRead,
int32_t iFileSize,
- uint32_t dwAccess,
- bool bReleaseBufferRead) {
+ uint32_t dwAccess) {
ASSERT(!m_pBufferRead && pBufferRead);
- if (dwAccess & FX_STREAMACCESS_Write) {
+ if (dwAccess & FX_STREAMACCESS_Write)
return false;
- }
- m_bReleaseBufferRead = bReleaseBufferRead;
+
m_pBufferRead = pBufferRead;
m_iBufferSize = iFileSize;
- if (m_iBufferSize >= 0) {
+ if (m_iBufferSize >= 0)
return true;
- }
- if (!m_pBufferRead->ReadNextBlock(true)) {
+
+ if (!m_pBufferRead->ReadNextBlock(true))
return false;
- }
+
m_iBufferSize = m_pBufferRead->GetBlockSize();
while (!m_pBufferRead->IsEOF()) {
m_pBufferRead->ReadNextBlock(false);
@@ -733,23 +737,25 @@ int32_t CFGAS_BufferReadStreamImp::ReadString(FX_WCHAR* pStr,
}
CFGAS_FileWriteStreamImp::CFGAS_FileWriteStreamImp()
: m_pFileWrite(nullptr), m_iPosition(0) {}
+
bool CFGAS_FileWriteStreamImp::LoadFileWrite(
- IFX_SeekableWriteStream* pFileWrite,
+ const CFX_RetainPtr<IFX_SeekableWriteStream>& pFileWrite,
uint32_t dwAccess) {
ASSERT(!m_pFileWrite && pFileWrite);
- if (dwAccess & FX_STREAMACCESS_Read) {
+ if (dwAccess & FX_STREAMACCESS_Read)
return false;
- }
- if (dwAccess & FX_STREAMACCESS_Append) {
+
+ if (dwAccess & FX_STREAMACCESS_Append)
m_iPosition = pFileWrite->GetSize();
- }
+
m_pFileWrite = pFileWrite;
return true;
}
+
int32_t CFGAS_FileWriteStreamImp::GetLength() const {
- if (!m_pFileWrite) {
+ if (!m_pFileWrite)
return 0;
- }
+
return (int32_t)m_pFileWrite->GetSize();
}
int32_t CFGAS_FileWriteStreamImp::Seek(FX_STREAMSEEK eSeek, int32_t iOffset) {
@@ -1159,8 +1165,9 @@ bool CFGAS_Stream::LoadFile(const FX_WCHAR* pszSrcFileName, uint32_t dwAccess) {
return true;
}
-bool CFGAS_Stream::LoadFileRead(IFX_SeekableReadStream* pFileRead,
- uint32_t dwAccess) {
+bool CFGAS_Stream::LoadFileRead(
+ const CFX_RetainPtr<IFX_SeekableReadStream>& pFileRead,
+ uint32_t dwAccess) {
if (m_eStreamType != FX_SREAMTYPE_Unknown || m_pStreamImp)
return false;
@@ -1178,16 +1185,16 @@ bool CFGAS_Stream::LoadFileRead(IFX_SeekableReadStream* pFileRead,
return true;
}
-bool CFGAS_Stream::LoadFileWrite(IFX_SeekableWriteStream* pFileWrite,
- uint32_t dwAccess) {
+bool CFGAS_Stream::LoadFileWrite(
+ const CFX_RetainPtr<IFX_SeekableWriteStream>& pFileWrite,
+ uint32_t dwAccess) {
if (m_eStreamType != FX_SREAMTYPE_Unknown || m_pStreamImp)
return false;
if (!pFileWrite)
return false;
- std::unique_ptr<CFGAS_FileWriteStreamImp> pImp(
- new CFGAS_FileWriteStreamImp());
+ auto pImp = pdfium::MakeUnique<CFGAS_FileWriteStreamImp>();
if (!pImp->LoadFileWrite(pFileWrite, dwAccess))
return false;
@@ -1218,20 +1225,18 @@ bool CFGAS_Stream::LoadBuffer(uint8_t* pData,
return true;
}
-bool CFGAS_Stream::LoadBufferRead(IFX_BufferedReadStream* pBufferRead,
- int32_t iFileSize,
- uint32_t dwAccess,
- bool bReleaseBufferRead) {
+bool CFGAS_Stream::LoadBufferRead(
+ const CFX_RetainPtr<IFX_BufferedReadStream>& pBufferRead,
+ int32_t iFileSize,
+ uint32_t dwAccess) {
if (m_eStreamType != FX_SREAMTYPE_Unknown || m_pStreamImp)
return false;
if (!pBufferRead)
return false;
- std::unique_ptr<CFGAS_BufferReadStreamImp> pImp(
- new CFGAS_BufferReadStreamImp);
- if (!pImp->LoadBufferRead(pBufferRead, iFileSize, dwAccess,
- bReleaseBufferRead))
+ auto pImp = pdfium::MakeUnique<CFGAS_BufferReadStreamImp>();
+ if (!pImp->LoadBufferRead(pBufferRead, iFileSize, dwAccess))
return false;
m_pStreamImp = pImp.release();
@@ -1478,14 +1483,21 @@ IFGAS_Stream* CFGAS_Stream::CreateSharedStream(uint32_t dwAccess,
return pShared;
}
-IFX_SeekableReadStream* IFGAS_Stream::MakeSeekableReadStream() {
- return new CFGAS_FileRead(this, false);
+CFX_RetainPtr<IFX_SeekableReadStream> IFGAS_Stream::MakeSeekableReadStream() {
+ return CFGAS_FileRead::Create(this, false);
+}
+
+CFX_RetainPtr<CFGAS_FileRead> CFGAS_FileRead::Create(IFGAS_Stream* pStream,
+ bool bReleaseStream) {
+ return CFX_RetainPtr<CFGAS_FileRead>(
+ new CFGAS_FileRead(pStream, bReleaseStream));
}
CFGAS_FileRead::CFGAS_FileRead(IFGAS_Stream* pStream, bool bReleaseStream)
: m_bReleaseStream(bReleaseStream), m_pStream(pStream) {
ASSERT(m_pStream);
}
+
CFGAS_FileRead::~CFGAS_FileRead() {
if (m_bReleaseStream) {
m_pStream->Release();
@@ -1500,7 +1512,3 @@ bool CFGAS_FileRead::ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) {
int32_t iLen = m_pStream->ReadData((uint8_t*)buffer, (int32_t)size);
return iLen == (int32_t)size;
}
-
-void CFGAS_FileRead::Release() {
- delete this;
-}
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