// 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 "../../include/fxcrt/fx_ext.h" | |
#include "fxcrt_posix.h" | |
#if _FXM_PLATFORM_ == _FXM_PLATFORM_LINUX_ || _FXM_PLATFORM_ == _FXM_PLATFORM_APPLE_ || _FXM_PLATFORM_ == _FXM_PLATFORM_ANDROID_ | |
IFXCRT_FileAccess* FXCRT_FileAccess_Create(IFX_Allocator* pAllocator) | |
{ | |
if (pAllocator) { | |
return FX_NewAtAllocator(pAllocator) CFXCRT_FileAccess_Posix(); | |
} else { | |
return FX_NEW CFXCRT_FileAccess_Posix; | |
} | |
} | |
void FXCRT_Posix_GetFileMode(FX_DWORD dwModes, FX_INT32 &nFlags, FX_INT32 &nMasks) | |
{ | |
nFlags = O_BINARY | O_LARGEFILE; | |
if (dwModes & FX_FILEMODE_ReadOnly) { | |
nFlags |= O_RDONLY; | |
nMasks = 0; | |
} else { | |
nFlags |= O_RDWR | O_CREAT; | |
if (dwModes & FX_FILEMODE_Truncate) { | |
nFlags |= O_TRUNC; | |
} | |
nMasks = S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH; | |
} | |
} | |
CFXCRT_FileAccess_Posix::CFXCRT_FileAccess_Posix() | |
: m_nFD(-1) | |
{ | |
} | |
CFXCRT_FileAccess_Posix::~CFXCRT_FileAccess_Posix() | |
{ | |
Close(); | |
} | |
FX_BOOL CFXCRT_FileAccess_Posix::Open(FX_BSTR fileName, FX_DWORD dwMode) | |
{ | |
if (m_nFD > -1) { | |
return FALSE; | |
} | |
FX_INT32 nFlags, nMasks; | |
FXCRT_Posix_GetFileMode(dwMode, nFlags, nMasks); | |
m_nFD = open(fileName.GetCStr(), nFlags, nMasks); | |
return m_nFD > -1; | |
} | |
FX_BOOL CFXCRT_FileAccess_Posix::Open(FX_WSTR fileName, FX_DWORD dwMode) | |
{ | |
return Open(FX_UTF8Encode(fileName), dwMode); | |
} | |
void CFXCRT_FileAccess_Posix::Close() | |
{ | |
if (m_nFD < 0) { | |
return; | |
} | |
close(m_nFD); | |
m_nFD = -1; | |
} | |
void CFXCRT_FileAccess_Posix::Release(IFX_Allocator* pAllocator) | |
{ | |
if (pAllocator) { | |
FX_DeleteAtAllocator(this, pAllocator, CFXCRT_FileAccess_Posix); | |
} else { | |
delete this; | |
} | |
} | |
FX_FILESIZE CFXCRT_FileAccess_Posix::GetSize() const | |
{ | |
if (m_nFD < 0) { | |
return 0; | |
} | |
struct stat s; | |
FXSYS_memset32(&s, 0, sizeof(s)); | |
fstat(m_nFD, &s); | |
return s.st_size; | |
} | |
FX_FILESIZE CFXCRT_FileAccess_Posix::GetPosition() const | |
{ | |
if (m_nFD < 0) { | |
return (FX_FILESIZE) - 1; | |
} | |
return lseek(m_nFD, 0, SEEK_CUR); | |
} | |
FX_FILESIZE CFXCRT_FileAccess_Posix::SetPosition(FX_FILESIZE pos) | |
{ | |
if (m_nFD < 0) { | |
return (FX_FILESIZE) - 1; | |
} | |
return lseek(m_nFD, pos, SEEK_SET); | |
} | |
size_t CFXCRT_FileAccess_Posix::Read(void* pBuffer, size_t szBuffer) | |
{ | |
if (m_nFD < 0) { | |
return 0; | |
} | |
return read(m_nFD, pBuffer, szBuffer); | |
} | |
size_t CFXCRT_FileAccess_Posix::Write(const void* pBuffer, size_t szBuffer) | |
{ | |
if (m_nFD < 0) { | |
return 0; | |
} | |
return write(m_nFD, pBuffer, szBuffer); | |
} | |
size_t CFXCRT_FileAccess_Posix::ReadPos(void* pBuffer, size_t szBuffer, FX_FILESIZE pos) | |
{ | |
if (m_nFD < 0) { | |
return 0; | |
} | |
if (pos >= GetSize()) { | |
return 0; | |
} | |
if (SetPosition(pos) == (FX_FILESIZE) - 1) { | |
return 0; | |
} | |
return Read(pBuffer, szBuffer); | |
} | |
size_t CFXCRT_FileAccess_Posix::WritePos(const void* pBuffer, size_t szBuffer, FX_FILESIZE pos) | |
{ | |
if (m_nFD < 0) { | |
return 0; | |
} | |
if (SetPosition(pos) == (FX_FILESIZE) - 1) { | |
return 0; | |
} | |
return Write(pBuffer, szBuffer); | |
} | |
FX_BOOL CFXCRT_FileAccess_Posix::Flush() | |
{ | |
if (m_nFD < 0) { | |
return FALSE; | |
} | |
return fsync(m_nFD) > -1; | |
} | |
FX_BOOL CFXCRT_FileAccess_Posix::Truncate(FX_FILESIZE szFile) | |
{ | |
if (m_nFD < 0) { | |
return FALSE; | |
} | |
return !ftruncate(m_nFD, szFile); | |
} | |
FX_BOOL FX_File_Exist(FX_BSTR fileName) | |
{ | |
return access(fileName.GetCStr(), F_OK) > -1; | |
} | |
FX_BOOL FX_File_Exist(FX_WSTR fileName) | |
{ | |
return FX_File_Exist(FX_UTF8Encode(fileName)); | |
} | |
FX_BOOL FX_File_Delete(FX_BSTR fileName) | |
{ | |
return remove(fileName.GetCStr()) > -1; | |
} | |
FX_BOOL FX_File_Delete(FX_WSTR fileName) | |
{ | |
return FX_File_Delete(FX_UTF8Encode(fileName)); | |
} | |
FX_BOOL FX_File_Copy(FX_BSTR fileNameSrc, FX_BSTR fileNameDst) | |
{ | |
CFXCRT_FileAccess_Posix src, dst; | |
if (!src.Open(fileNameSrc, FX_FILEMODE_ReadOnly)) { | |
return FALSE; | |
} | |
FX_FILESIZE size = src.GetSize(); | |
if (!size) { | |
return FALSE; | |
} | |
if (!dst.Open(fileNameDst, FX_FILEMODE_Truncate)) { | |
return FALSE; | |
} | |
size_t num = 0; | |
FX_LPBYTE pBuffer = FX_Alloc(FX_BYTE, 32768); | |
if (!pBuffer) { | |
return FALSE; | |
} | |
num = src.Read(pBuffer, 32768); | |
while (num) { | |
if (dst.Write(pBuffer, num) != num) { | |
break; | |
} | |
num = src.Read(pBuffer, 32768); | |
} | |
FX_Free(pBuffer); | |
return TRUE; | |
} | |
FX_BOOL FX_File_Copy(FX_WSTR fileNameSrc, FX_WSTR fileNameDst) | |
{ | |
return FX_File_Copy(FX_UTF8Encode(fileNameSrc), FX_UTF8Encode(fileNameDst)); | |
} | |
FX_BOOL FX_File_Move(FX_BSTR fileNameSrc, FX_BSTR fileNameDst) | |
{ | |
return rename(fileNameSrc.GetCStr(), fileNameDst.GetCStr()); | |
} | |
FX_BOOL FX_File_Move(FX_WSTR fileNameSrc, FX_WSTR fileNameDst) | |
{ | |
return FX_File_Move(FX_UTF8Encode(fileNameSrc), FX_UTF8Encode(fileNameDst)); | |
} | |
#endif |