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occt/src/OSD/OSD_FileIterator.cxx
abv 1bd04b5a02 0031060: Configuration - Support building with CLang compiler under VS 2019 
Build tools are updated to support building with Visual Studion 2019 toolset ClangCL (LLVM clang-cl):
- In CMake builds, use of unsupported option "-std=c++0x" is avoided
- Tool genconf recognizes availability of ClangCL toolset and proposes it in the list
- Tool genproj recognizes new compiler specification VCVER=vclang and generates VS 2019 projects for it

Note that vclang configuration puts binaries to folder "vc14" as it is compatible with vc14 CRT.

Code is updated to build with Clang for Windows without errors and warnings:
- In BVH classes, pure virtual destructors are replaced by empty ones, to avoid bogus compiler warning
- In .lex files, pragmas are added to disable warnings in parser code
- In OSD, signature of function _osd_wnt_set_error() is corrected to avoid warning on incorrect use of va_args (undefined behavior)
- In OSD_Host, OSD_Parallel_TBB, warnings on usage of deprecated function are disabled
- In Quantity_ColorRGBA and ViewerTest_CmdParser, incorrect use of predefined macro __FUNCTION__ assuming it was a string literal is avoided
- In Standard_Macro.hxx, code is reordered to handle Clang for Windows appropriately
- In AdvApp2Var_SysBase.hxx, inclusion of obsolete (MSVC-specific) header file is replaced by Standard_TypeDef.hxx
- In Standard_ErrorHandler.hxx, empty statements added to avoid warning on unused class fields
- In IVtkDraw and ViewerTest, interface is corrected to use actual type avoiding unnecessary type casts

Off-topic: corrections of some errors (uninitialized class fields) reported by VS Code Analysis in TKernel
2019-11-03 21:47:59 +03:00

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// Copyright (c) 1998-1999 Matra Datavision
// Copyright (c) 1999-2014 OPEN CASCADE SAS
//
// This file is part of Open CASCADE Technology software library.
//
// This library is free software; you can redistribute it and/or modify it under
// the terms of the GNU Lesser General Public License version 2.1 as published
// by the Free Software Foundation, with special exception defined in the file
// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
// distribution for complete text of the license and disclaimer of any warranty.
//
// Alternatively, this file may be used under the terms of Open CASCADE
// commercial license or contractual agreement.
#ifndef _WIN32
#include <OSD_File.hxx>
#include <OSD_FileIterator.hxx>
#include <OSD_OSDError.hxx>
#include <OSD_Path.hxx>
#include <OSD_WhoAmI.hxx>
#include <TCollection_AsciiString.hxx>
#include <dirent.h>
#include <stdio.h>
#include <sys/stat.h>
#include <sys/types.h>
# define NAMLEN(dirent) strlen((dirent)->d_name)
# ifdef VMS
extern char *vmsify PARAMS ((char *name, int type));
# endif
/* In GNU systems, <dirent.h> defines this macro for us. */
#ifdef _D_NAMLEN
# undef NAMLEN
# define NAMLEN(d) _D_NAMLEN(d)
#endif
#if (defined (POSIX) || defined (VMS) || defined (WINDOWS32)) && !defined (__GNU_LIBRARY__)
/* Posix does not require that the d_ino field be present, and some
systems do not provide it. */
# define REAL_DIR_ENTRY(dp) 1
# define FAKE_DIR_ENTRY(dp)
#else
# define REAL_DIR_ENTRY(dp) (dp->d_ino != 0)
# define FAKE_DIR_ENTRY(dp) (dp->d_ino = 1)
#endif /* POSIX */
//const OSD_WhoAmI Iam = OSD_WFileIterator;
OSD_FileIterator::OSD_FileIterator()
: myFlag(false),
myDescr(0),
myEntry(0),
myInit(0)
{
}
OSD_FileIterator::OSD_FileIterator(const OSD_Path& where,
const TCollection_AsciiString& Mask)
: myFlag(false),
myDescr(0),
myEntry(0),
myInit(0)
{
Initialize(where, Mask) ;
}
// For Windows NT compatibility
void OSD_FileIterator :: Destroy () {}
void OSD_FileIterator::Initialize(const OSD_Path& where,
const TCollection_AsciiString& Mask){
myFlag = Standard_False;
where.SystemName(myPlace);
if (myPlace.Length()==0) myPlace = ".";
myMask = Mask;
if (myDescr) {
closedir((DIR *)myDescr) ;
myDescr = NULL ;
}
myInit = 1 ;
}
// Is there another file entry ?
Standard_Boolean OSD_FileIterator::More(){
if (myInit) {
myInit = 0 ;
myDescr = (Standard_Address) opendir(myPlace.ToCString());
if (myDescr) { // LD : Si repertoire inaccessible retourner False
myFlag = Standard_True;
myInit = 0 ;
Next(); // Now find first entry
}
}
return myFlag;
}
// Private : See if file name matches with a mask (like "*.c")
static int strcmp_joker(const char *Mask,const char *Name)
{
const char *p, *s ;
for(p = Mask,s = Name ; *p && *p != '*' ; p++,s++)
if (*p != *s) return 0 ;
if (!*p) return !(*s) ;
while (*p == '*') p++ ;
if (!*p) return 1 ;
for (;*s; s++)
if (strcmp_joker(p,s)) return 1 ;
return 0 ;
}
#if 0
// LD : ancienne version.
#define TRUE 1
#define FALSE 0
#define NO_MASK '*'
static int strcmp_joker(char *fileMask,char *fileName)
{
char *sauve_fileMask,*sauve_fileName;
int compare_result;
int beginning = 1; // 0 if first character is a joker, otherwise 1
while (*fileName) { // Test end of AsciiString
if (*fileMask == NO_MASK) {
beginning = 0;
while(*fileMask == NO_MASK) fileMask++;
if (*fileMask) {
while(*fileName &&
*fileName != *fileMask)
fileName++;
sauve_fileMask = fileMask; // Save strings
sauve_fileName = fileName;
}
else return(0); // fileMask ends with a joker
}
else { // Compare two characters
compare_result = *fileMask++ - *fileName++;
if (compare_result != 0)
if (beginning)
return (compare_result); /* 1ere chaine pas de joker au debut */
else { // Look ahead for same string
fileMask = sauve_fileMask;
fileName = ++sauve_fileName;
while(*fileName &&
*fileName != *fileMask)
fileName++;
sauve_fileName = fileName;
}
}
}
while(*fileMask == NO_MASK) fileMask++;
return(*fileMask - *fileName);
}
#endif
// Find next file entry in current directory
void OSD_FileIterator::Next(){
int again = 1;
struct stat stat_buf;
myFlag = false; // Initialize to nothing found
do {
myEntry = readdir((DIR *)myDescr);
if (!myEntry){ // No file found
myEntry = NULL; // Keep pointer clean
myFlag = Standard_False; // No more files/directory
closedir((DIR *)myDescr) ; // so close directory
myDescr = NULL;
again = 0;
}
else {
if (!strcmp(((struct dirent *)myEntry)->d_name,".")) continue;
if (!strcmp(((struct dirent *)myEntry)->d_name,"..")) continue;
// Is it a file ?
const TCollection_AsciiString aFullName = myPlace + "/" + ((struct dirent* )myEntry)->d_name;
stat(aFullName.ToCString(), &stat_buf);
if (S_ISREG(stat_buf.st_mode)) // LD : Ensure me it's a regular file
if (strcmp_joker(myMask.ToCString(), ((struct dirent *)myEntry)->d_name)){
// Does it follow mask ?
myFlag = Standard_True;
again = 0;
}
}
} while (again);
}
// Get Name of selected file
OSD_File OSD_FileIterator::Values(){
OSD_Path thisvalue;
TCollection_AsciiString Name;
TCollection_AsciiString Ext;
Standard_Integer position;
if (myEntry) Name = ((struct dirent *)myEntry)->d_name ;
position = Name.Search(".");
if (position != -1){
Ext = Name;
Ext.Remove(1,position-1);
Name.Remove( position,Ext.Length());
}
thisvalue.SetValues("", "", "", "", "", Name,Ext);
TheIterator.SetPath (thisvalue);
return (TheIterator);
}
void OSD_FileIterator::Reset(){
myError.Reset();
}
Standard_Boolean OSD_FileIterator::Failed()const{
return( myError.Failed());
}
void OSD_FileIterator::Perror() {
myError.Perror();
}
Standard_Integer OSD_FileIterator::Error()const{
return( myError.Error());
}
#else
//------------------------------------------------------------------------
//------------------- Windows NT sources for OSD_FileIterator -----------
//------------------------------------------------------------------------
#include <windows.h>
#include <OSD_File.hxx>
#include <OSD_FileIterator.hxx>
#include <OSD_OSDError.hxx>
#include <OSD_Path.hxx>
#include <TCollection_AsciiString.hxx>
#include <TCollection_ExtendedString.hxx>
#define _FD ( ( PWIN32_FIND_DATAW )myData )
void _osd_wnt_set_error ( OSD_Error&, Standard_Integer, ... );
OSD_FileIterator :: OSD_FileIterator (
const OSD_Path& where,
const TCollection_AsciiString& Mask
) {
myFlag = Standard_False;
myHandle = INVALID_HANDLE_VALUE;
where.SystemName ( myPlace );
if ( myPlace.Length () == 0 ) myPlace = ".";
myMask = Mask;
myData = NULL;
} // end constructor
void OSD_FileIterator :: Destroy () {
if ( myData != NULL ) HeapFree ( GetProcessHeap (), 0, myData );
if ( myHandle != INVALID_HANDLE_VALUE )
FindClose ( ( HANDLE )myHandle );
} // end OSD_DirectoryIterator :: Destroy
Standard_Boolean OSD_FileIterator :: More () {
if ( myHandle == INVALID_HANDLE_VALUE ) {
TCollection_AsciiString wc = myPlace + "/" + myMask;
myData = HeapAlloc (
GetProcessHeap (), HEAP_GENERATE_EXCEPTIONS, sizeof ( WIN32_FIND_DATAW )
);
// make wchar_t string from UTF-8
TCollection_ExtendedString wcW(wc);
myHandle = FindFirstFileExW (wcW.ToWideString(), FindExInfoStandard, (PWIN32_FIND_DATAW)myData, FindExSearchNameMatch, NULL, 0);
if ( myHandle == INVALID_HANDLE_VALUE )
_osd_wnt_set_error ( myError, OSD_WDirectoryIterator );
else {
myFlag = Standard_True;
myFirstCall = Standard_True;
Next ();
} // end else
} else if ( !myFlag ) {
FindClose ( ( HANDLE )myHandle );
myHandle = INVALID_HANDLE_VALUE;
} // end if
return myFlag;
} // end OSD_FileIterator :: More
void OSD_FileIterator :: Next () {
if ( ! myFirstCall || ( _FD -> dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ) ) {
do {
if ( !FindNextFileW ( ( HANDLE )myHandle, _FD ) ) {
myFlag = Standard_False;
break;
} // end if
} while ( ( _FD -> dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY ) );
} // end if
myFirstCall = Standard_False;
} // end OSD_FileIterator :: Next
OSD_File OSD_FileIterator :: Values () {
// make UTF-8 string
TCollection_AsciiString aFileName
(TCollection_ExtendedString( (Standard_ExtString) _FD -> cFileName) );
TheIterator.SetPath ( OSD_Path ( aFileName ) );
return TheIterator;
} // end OSD_FileIterator :: Values
Standard_Boolean OSD_FileIterator :: Failed () const {
return myError.Failed ();
} // end OSD_FileIterator :: Failed
void OSD_FileIterator :: Reset () {
myError.Reset ();
} // end OSD_FileIterator :: Reset
void OSD_FileIterator :: Perror () {
myError.Perror ();
} // end OSD_FileIterator :: Perror
Standard_Integer OSD_FileIterator :: Error () const {
return myError.Error ();
} // end OSD_FileIterator :: Error
// For compatibility with UNIX version
OSD_FileIterator::OSD_FileIterator()
: myFlag(Standard_False),
myHandle(0),
myData(0),
myFirstCall(Standard_False)
{}
void OSD_FileIterator::Initialize(
const OSD_Path&,
const TCollection_AsciiString&){}
#endif
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