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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "fxcrt_platforms.h"
#include "core/include/fxcrt/fx_basic.h"
#if (_FXM_PLATFORM_ != _FXM_PLATFORM_WINDOWS_ && \
_FXM_PLATFORM_ != _FXM_PLATFORM_LINUX_ && \
_FXM_PLATFORM_ != _FXM_PLATFORM_APPLE_ && \
_FXM_PLATFORM_ != _FXM_PLATFORM_ANDROID_)
IFXCRT_FileAccess* FXCRT_FileAccess_Create() {
return new CFXCRT_FileAccess_CRT;
}
void FXCRT_GetFileModeString(FX_DWORD dwModes, CFX_ByteString& bsMode) {
if (dwModes & FX_FILEMODE_ReadOnly) {
bsMode = "rb";
} else if (dwModes & FX_FILEMODE_Truncate) {
bsMode = "w+b";
} else {
bsMode = "a+b";
}
}
void FXCRT_GetFileModeString(FX_DWORD dwModes, CFX_WideString& wsMode) {
if (dwModes & FX_FILEMODE_ReadOnly) {
wsMode = FX_WSTRC(L"rb");
} else if (dwModes & FX_FILEMODE_Truncate) {
wsMode = FX_WSTRC(L"w+b");
} else {
wsMode = FX_WSTRC(L"a+b");
}
}
CFXCRT_FileAccess_CRT::CFXCRT_FileAccess_CRT() : m_hFile(NULL) {}
CFXCRT_FileAccess_CRT::~CFXCRT_FileAccess_CRT() {
Close();
}
FX_BOOL CFXCRT_FileAccess_CRT::Open(const CFX_ByteStringC& fileName,
FX_DWORD dwMode) {
if (m_hFile) {
return FALSE;
}
CFX_ByteString strMode;
FXCRT_GetFileModeString(dwMode, strMode);
m_hFile = FXSYS_fopen(fileName.GetCStr(), strMode.c_str());
return m_hFile != NULL;
}
FX_BOOL CFXCRT_FileAccess_CRT::Open(const CFX_WideStringC& fileName,
FX_DWORD dwMode) {
if (m_hFile) {
return FALSE;
}
CFX_WideString strMode;
FXCRT_GetFileModeString(dwMode, strMode);
m_hFile = FXSYS_wfopen(fileName.GetPtr(), strMode.c_str());
return m_hFile != NULL;
}
void CFXCRT_FileAccess_CRT::Close() {
if (!m_hFile) {
return;
}
FXSYS_fclose(m_hFile);
m_hFile = NULL;
}
void CFXCRT_FileAccess_CRT::Release() {
delete this;
}
FX_FILESIZE CFXCRT_FileAccess_CRT::GetSize() const {
if (!m_hFile) {
return 0;
}
FX_FILESIZE pos = (FX_FILESIZE)FXSYS_ftell(m_hFile);
FXSYS_fseek(m_hFile, 0, FXSYS_SEEK_END);
FX_FILESIZE size = (FX_FILESIZE)FXSYS_ftell(m_hFile);
FXSYS_fseek(m_hFile, pos, FXSYS_SEEK_SET);
return size;
}
FX_FILESIZE CFXCRT_FileAccess_CRT::GetPosition() const {
if (!m_hFile) {
return (FX_FILESIZE)-1;
}
return (FX_FILESIZE)FXSYS_ftell(m_hFile);
}
FX_FILESIZE CFXCRT_FileAccess_CRT::SetPosition(FX_FILESIZE pos) {
if (!m_hFile) {
return (FX_FILESIZE)-1;
}
FXSYS_fseek(m_hFile, pos, FXSYS_SEEK_SET);
return (FX_FILESIZE)FXSYS_ftell(m_hFile);
}
size_t CFXCRT_FileAccess_CRT::Read(void* pBuffer, size_t szBuffer) {
if (!m_hFile) {
return 0;
}
return FXSYS_fread(pBuffer, 1, szBuffer, m_hFile);
}
size_t CFXCRT_FileAccess_CRT::Write(const void* pBuffer, size_t szBuffer) {
if (!m_hFile) {
return 0;
}
return FXSYS_fwrite(pBuffer, 1, szBuffer, m_hFile);
}
size_t CFXCRT_FileAccess_CRT::ReadPos(void* pBuffer,
size_t szBuffer,
FX_FILESIZE pos) {
if (!m_hFile) {
return (FX_FILESIZE)-1;
}
FXSYS_fseek(m_hFile, pos, FXSYS_SEEK_SET);
return FXSYS_fread(pBuffer, 1, szBuffer, m_hFile);
}
size_t CFXCRT_FileAccess_CRT::WritePos(const void* pBuffer,
size_t szBuffer,
FX_FILESIZE pos) {
if (!m_hFile) {
return (FX_FILESIZE)-1;
}
FXSYS_fseek(m_hFile, pos, FXSYS_SEEK_SET);
return FXSYS_fwrite(pBuffer, 1, szBuffer, m_hFile);
}
FX_BOOL CFXCRT_FileAccess_CRT::Flush() {
if (!m_hFile) {
return FALSE;
}
return !FXSYS_fflush(m_hFile);
}
FX_BOOL CFXCRT_FileAccess_CRT::Truncate(FX_FILESIZE szFile) {
return FALSE;
}
#endif
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