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fogcreek shellext: perform file I/O using CAtlFile, part 2

Changeset f331c3c3903d…

Parent ef6ea1af6f56…

by David Golub

Changes to 6 files · Browse files at f331c3c3903d Showing diff from parent ef6ea1af6f56 Diff from another changeset...

Change 1 of 3 Show Changes Only win32/​shellext/​DirectoryStatus.cpp Stacked
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 // Copyright (C) 2011 Fog Creek Software  // Copyright (C) 2009 Adrian Buehlmann  //  // This program is free software: you can redistribute it and/or modify  // it under the terms of the GNU General Public License as published by  // the Free Software Foundation, either version 2 of the License, or  // (at your option) any later version.  //  // This program is distributed in the hope that it will be useful,  // but WITHOUT ANY WARRANTY; without even the implied warranty of  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the  // GNU General Public License for more details.  //  // You should have received a copy of the GNU General Public License  // along with this program. If not, see <http://www.gnu.org/licenses/>.    #include "stdafx.h"    #include "DirectoryStatus.h"  #include "THgStatus.h"  #include "TortoiseUtils.h"    char CDirectoryStatus::Status(CString strRelPath) const  {   bool bAdded = false;   bool bModified = false;     strRelPath += '/';     POSITION position = m_listEntries.GetHeadPosition();   while (position != NULL)   {   const CEntry& rEntry = m_listEntries.GetNext(position);   if (strRelPath.IsEmpty() || rEntry.strPath.Left(strRelPath.GetLength()) == strRelPath)   {   if (rEntry.chStatus == 'm' || rEntry.chStatus == 'r')   {   bModified = true;   break;   }   if (rEntry.chStatus == 'a')   {   bAdded = true;   }   }   }     if (bModified) return 'M';   if (bAdded) return 'A';   return 'C';  }    int CDirectoryStatus::Read(const CString& strHgRoot, const CString& strCwd)  {   m_listEntries.RemoveAll();   m_bNoIcons = false;     CString strStatusPath = strHgRoot + "\\.hg\\thgstatus";   - FILE *pFile = fopenReadRenameAllowed(strStatusPath); - if (!pFile) + CAtlFile file; + if (FAILED(file.Create(strStatusPath, GENERIC_READ, + FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE, OPEN_EXISTING)))   {   ATLTRACE("CDirectoryStatus::read: can't open '%s'\n", (LPCTSTR)strStatusPath);   CString p = (strCwd.GetLength() < strHgRoot.GetLength() ? strHgRoot : strCwd);   CTHgStatus::Update(strStatusPath);   return 0;   }     CDirectoryStatus::CEntry e;     int nRes = 1;   const CString strNoIcons = "@@noicons";     CString strLine;     for (;;)   {   strLine.Empty();   char chStatus;     for (;;)   { - if (fread(&chStatus, sizeof(char), 1, pFile) != 1) goto close; + if (FAILED(file.Read(&chStatus, sizeof(char)))) goto close;   if (chStatus == '\n') break;   strLine.AppendChar(chStatus);   if (strLine.GetLength() > 1000)   {   nRes = 0;   goto close;   }   }     if (StartsWith(strLine, strNoIcons))   {   m_bNoIcons = true;   goto close;   }     if (strLine.IsEmpty()) goto close;   e.chStatus = strLine[0];     CString strPath;   if (strLine.GetLength() > 1)   {   strPath = strLine.Mid(1).MakeLower();   }   strPath.AppendChar('/');     e.strPath = strPath;     m_listEntries.AddTail(e);   }    close: - fclose(pFile); + file.Close();     ATLTRACE("DirectoryStatus::read(%d): done. %d entries read. noicons_ = %d\n",   m_listEntries.GetCount(), m_bNoIcons);     return nRes;  }    struct CCacheEntry  {   CString strHgRoot;   CDirectoryStatus ds;   bool bReadFailed;   unsigned uTickCount;     CCacheEntry() : bReadFailed(false), uTickCount(0) {}  };    CDirectoryStatus* CDirectoryStatus::Get(const CString& strHgRoot,   const CString& strCwd)  {   static CCacheEntry ce;     unsigned tc = ::GetTickCount();     if (ce.strHgRoot != strHgRoot || (tc - ce.uTickCount) > 2000)   {   ce.strHgRoot.Empty();   ce.bReadFailed = (ce.ds.Read(strHgRoot, strCwd) == 0);   ce.strHgRoot = strHgRoot;   ce.uTickCount = ::GetTickCount();   }     return (ce.bReadFailed ? 0 : &ce.ds);  }
Change 1 of 2 Show Entire File win32/​shellext/​Direntry.cpp Stacked
 
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@@ -20,16 +20,16 @@
 #include "Direntry.h"  #include "Winstat.h"   -int CDirentry::Read(FILE* pFile, CString& strRelPath) +bool CDirentry::Read(CAtlFile& rFile, CString& strRelPath)  { - if (fread(&m_chState, sizeof(char), 1, pFile) != 1) return 0; + if (FAILED(rFile.Read(&m_chState, sizeof(char)))) return false;     unsigned nLength = 0;   - fread(&m_uMode, sizeof(unsigned), 1, pFile); - fread(&m_uSize, sizeof(unsigned), 1, pFile); - fread(&m_uMTime, sizeof(unsigned), 1, pFile); - fread(&nLength, sizeof(unsigned), 1, pFile); + rFile.Read(&m_uMode, sizeof(unsigned)); + rFile.Read(&m_uSize, sizeof(unsigned)); + rFile.Read(&m_uMTime, sizeof(unsigned)); + rFile.Read(&nLength, sizeof(unsigned));     m_uMode = ntohl(m_uMode);   m_uSize = ntohl(m_uSize); @@ -37,12 +37,12 @@
  nLength = ntohl(nLength);     LPSTR lpszBuf = strRelPath.GetBuffer(nLength); - fread(lpszBuf, sizeof(char), nLength, pFile); + rFile.Read(lpszBuf, nLength * sizeof(char));   strRelPath.ReleaseBuffer(nLength);     strRelPath = strRelPath.MakeLower();   - return 1; + return true;  }    char CDirentry::Status(const CWinstat& stat) const
Change 1 of 1 Show Entire File win32/​shellext/​Direntry.h Stacked
 
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    CString m_strName;   - int Read(FILE* pFile, CString& strRelPath); + bool Read(CAtlFile& rFile, CString& strRelPath);   char Status(const CWinstat& stat) const;     bool Unset() const
Change 1 of 3 Show Entire File win32/​shellext/​Dirstate.cpp Stacked
 
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@@ -24,8 +24,9 @@
 {   bUnset = false;   - FILE *pFile = fopenReadRenameAllowed(strPath); - if (!pFile) + CAtlFile file; + if (FAILED(file.Create(strPath, GENERIC_READ, + FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE, OPEN_EXISTING)))   {   ATLTRACE("Dirstate::read: can't open '%s'\n", (LPCTSTR)strPath);   return CAutoPtr<CDirstate>(NULL); @@ -33,12 +34,12 @@
    CAutoPtr<CDirstate> pd(new CDirstate());   - fread(&pd->m_szParent1, sizeof(char), HASH_LENGTH, pFile); - fread(&pd->m_szParent2, sizeof(char), HASH_LENGTH, pFile); + file.Read(&pd->m_szParent1, HASH_LENGTH * sizeof(char)); + file.Read(&pd->m_szParent2, HASH_LENGTH * sizeof(char));     CDirentry e;   CString strRelPath; - while (e.Read(pFile, strRelPath)) + while (e.Read(file, strRelPath))   {   if (e.Unset()) bUnset = true;   if (e.m_chState == 'a') ++pd->m_nNumAdded; @@ -46,8 +47,7 @@
  pd->Add(strRelPath, e);   }   - fclose(pFile); - + file.Close();   return pd;  }  
Change 1 of 1 Show Entire File win32/​shellext/​TortoiseUtils.cpp Stacked
 
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@@ -191,37 +191,6 @@
  return !GetHgRepoRoot(lpszPath).IsEmpty();  }   -// open a file for reading, allowing renames and deletes by other -// processes while we have it open -FILE* fopenReadRenameAllowed(LPCTSTR lpszPath) -{ - HANDLE hFile = ::CreateFile(lpszPath, GENERIC_READ, - FILE_SHARE_DELETE | FILE_SHARE_READ | FILE_SHARE_WRITE, - 0, OPEN_EXISTING, 0, 0); - - if (hFile == INVALID_HANDLE_VALUE) return 0; - - // get C runtime file descriptor from file handle - int fd = _open_osfhandle((intptr_t)hFile, _O_RDONLY); - if (fd == -1) - { - ATLTRACE("fopenReadRenameAllowed: _open_osfhandle failed\n"); - ::CloseHandle(hFile); - return 0; - } - - // get C runtime FILE from file descriptor - FILE* pFile = _fdopen(fd, "r"); - if (pFile == 0) - { - ATLTRACE("fopenReadRenameAllowed: _fdopen failed\n"); - _close(fd); - return 0; - } - - return pFile; -} -  // read string value from registry, wide version  bool GetRegSZValueW(HKEY hKey, LPCWSTR lpszName, CStringW& strRes)  {
Change 1 of 1 Show Entire File win32/​shellext/​TortoiseUtils.h Stacked
 
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 HICON GetTortoiseIcon(const CString& strIconName);  CString GetHgRepoRoot(LPCTSTR lpszPath);  bool IsHgRepo(const CString& lpszPath); -FILE* fopenReadRenameAllowed(LPCTSTR lpszPath);  bool GetRegSZValueW(HKEY hKey, LPCWSTR lpszName, CStringW& strRes);  bool StartsWith(const CString& strWhole, const CString& strPrefix);  void Tokenize(CString str, CAtlList<CString>& rTokens, LPCTSTR lpszDelimiters = " ");