From 5110c4743751145c4ae1934cd1d83bc6c55bb43f Mon Sep 17 00:00:00 2001
From: John Abd-El-Malek <jabdelmalek@google.com>
Date: Sat, 17 May 2014 22:33:34 -0700
Subject: Initial commit.

---
 core/src/fxcrt/fxcrt_posix.cpp | 201 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 201 insertions(+)
 create mode 100644 core/src/fxcrt/fxcrt_posix.cpp

(limited to 'core/src/fxcrt/fxcrt_posix.cpp')

diff --git a/core/src/fxcrt/fxcrt_posix.cpp b/core/src/fxcrt/fxcrt_posix.cpp
new file mode 100644
index 0000000000..6752e0a117
--- /dev/null
+++ b/core/src/fxcrt/fxcrt_posix.cpp
@@ -0,0 +1,201 @@
+// 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
-- 
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