Seperated out the platform specific implementions of the file search/access
routines - we now have FileUtils_Windows.cpp, FileUtils_Mac.cpp and FileUtils_Unix.cpp. The FileUtils_Mac.cpp is based on code submitted by Josh Portway and add uses the carbon API for searching for files.
This commit is contained in:
Robert Osfield
@@ -1,395 +1,9 @@
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#if defined(WIN32) &&!defined(__CYGWIN__)
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#include <Io.h>
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#include <Windows.h>
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#include <Winbase.h>
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#elif !defined(macintosh) // UNIX
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#include <unistd.h>
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#include <dlfcn.h>
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <osg/Notify>
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#include <osg/Node>
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#include <osg/Geode>
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#include <osg/Group>
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#include <osgDB/FileUtils>
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#include <osgDB/FileNameUtils>
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#include <osgDB/Registry>
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using namespace osg;
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using namespace osgDB;
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// follows is definition of strdup for compatibility under mac,
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// However, I'd prefer to migrate all the findFindInPath tools to use
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// std::string's and then be able to remove the following definition.
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// My objective is to minimize the number of platform #ifdef's as they
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// are source of potential bugs and developer confusion.
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#ifdef macintosh
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#ifndef strdup
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inline static char* strdup(const char *src);
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inline static char* strdup(const char *src)
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{
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char *ret = (char *) std::malloc(std::strlen(src) +1);
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if(!ret) return NULL;
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return std::strcpy(ret, src);
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}
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#endif
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#endif
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#define FILEUTILS_MAX_PATH_LENGTH 2048
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#if defined(WIN32) &&!defined(__CYGWIN__)
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char *PathDelimitor = ";";
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static const char *s_default_file_path = ".;";
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static const char *s_default_dso_path = "C:/Windows/System/;";
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static char *s_filePath = ".;";
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#elif macintosh
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char *PathDelimitor = " ";
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static const char *s_default_file_path = ":";
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static const char *s_default_dso_path = ":";
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static char *s_filePath = ":";
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#elif __sgi
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char *PathDelimitor = ":";
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static const char *s_default_file_path = ".:";
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static const char *s_default_dso_path = "/usr/lib32/:/usr/local/lib32/";
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static char *s_filePath = ".:";
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#else
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char *PathDelimitor = ":";
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static const char *s_default_file_path = ".:";
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#if defined(__CYGWIN__)
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static const char *s_default_dso_path = "/usr/lib/:/usr/local/lib/:";
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#else
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static const char *s_default_dso_path = "/usr/lib/:/usr/local/lib/:";
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#endif // __CYGWIN__
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static char *s_filePath = ".:";
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#endif
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#if defined(WIN32) &&!defined(__CYGWIN__)
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#define F_OK 4
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#endif
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static bool s_filePathInitialized = false;
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void osgDB::initFilePath( void )
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{
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char *ptr;
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if( (ptr = getenv( "OSGFILEPATH" )) )
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{
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notify(DEBUG_INFO) << "osgDB::Init("<<ptr<<")"<<std::endl;
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setFilePath( ptr );
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}
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else
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{
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notify(DEBUG_INFO) << "osgDB::Init(NULL)"<<std::endl;
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}
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s_filePathInitialized = true;
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}
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void osgDB::setFilePath( const char *_path )
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{
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char buff[FILEUTILS_MAX_PATH_LENGTH];
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notify(DEBUG_INFO) << "In osgDB::setFilePath("<<_path<<")"<<std::endl;
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buff[0] = 0;
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if( s_filePath != s_default_file_path )
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{
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strcpy( buff, s_filePath );
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}
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strcat( buff, PathDelimitor );
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strcat( buff, _path );
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s_filePath = strdup( buff );
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s_filePathInitialized = true;
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}
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const char* osgDB::getFilePath()
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{
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return s_filePath;
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}
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char *osgDB::findFileInPath( const char *_file, const char * filePath )
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{
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#ifdef macintosh
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return (char *)_file;
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#else
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char pathbuff[FILEUTILS_MAX_PATH_LENGTH];
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char *tptr, *tmppath;
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char *path = 0L;
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notify(DEBUG_INFO) << "FindFileInPath() : trying " << _file << " ...\n";
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if( access( _file, F_OK ) == 0 )
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{
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return strdup(_file);
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}
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tptr = strdup( filePath );
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tmppath = strtok( tptr, PathDelimitor );
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do
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{
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sprintf( pathbuff, "%s/%s", tmppath, _file );
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notify(DEBUG_INFO) << "FindFileInPath() : trying " << pathbuff << " ...\n";
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if( access( pathbuff, F_OK ) == 0 ) break;
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} while( (tmppath = strtok( 0, PathDelimitor )) );
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if( tmppath != (char *)0L )
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path = strdup( pathbuff );
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::free(tptr);
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if (path) notify( DEBUG_INFO ) << "FindFileInPath() : returning " << path << std::endl;
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else notify( DEBUG_INFO ) << "FindFileInPath() : returning NULL" << std::endl;
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return path;
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#endif
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}
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char *osgDB::findFile( const char *file )
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{
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if (!file) return NULL;
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if (!s_filePathInitialized) initFilePath();
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char* newFileName = findFileInPath( file, s_filePath );
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if (newFileName) return newFileName;
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// need to check here to see if file has a path on it.
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// now strip the file of an previous path if one exists.
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std::string simpleFileName = getSimpleFileName(file);
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newFileName = findFileInPath( simpleFileName.c_str(), s_filePath );
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return newFileName;
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}
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/*
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Order of precedence for
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Under UNIX.
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./
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OSG_LD_LIBRARY_PATH
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s_default_dso_path
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LD_LIBRARY*_PATH
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Under Windows
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./
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OSG_LD_LIBRARY_PATH
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s_default_dso_path
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PATH
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*/
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char *osgDB::findDSO( const char *name )
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{
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#ifndef macintosh
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#if defined(__linux) || defined(__CYGWIN__)
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if( access( name, F_OK ) == 0 )
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{
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if (name[0]!='/')
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{
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char pathbuff[FILEUTILS_MAX_PATH_LENGTH];
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sprintf( pathbuff,"./%s", name );
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return (char *)strdup(pathbuff);
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}
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else
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{
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return (char *)strdup(name);
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}
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}
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#endif
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char path[FILEUTILS_MAX_PATH_LENGTH];
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char *ptr;
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strcpy( path, "./" );
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if((ptr = getenv( "OSG_LD_LIBRARY_PATH" )))
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{
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strcat( path, PathDelimitor );
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strcat( path, ptr );
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}
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strcat( path, PathDelimitor );
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strcat( path, s_default_dso_path );
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#ifdef __sgi
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// bloody mess see rld(1) man page
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#if (_MIPS_SIM == _MIPS_SIM_ABI32)
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if( (ptr = getenv( "LD_LIBRARY_PATH" )))
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{
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strcat( path, PathDelimitor );
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strcat( path, ptr );
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}
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#elif (_MIPS_SIM == _MIPS_SIM_NABI32)
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if( !(ptr = getenv( "LD_LIBRARYN32_PATH" )))
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ptr = getenv( "LD_LIBRARY_PATH" );
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if( ptr )
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{
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strcat( path, PathDelimitor );
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strcat( path, ptr );
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}
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#elif (_MIPS_SIM == _MIPS_SIM_ABI64)
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if( !(ptr = getenv( "LD_LIBRARY64_PATH" )))
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ptr = getenv( "LD_LIBRARY_PATH" );
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if( ptr )
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{
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strcat( path, PathDelimitor );
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strcat( path, ptr );
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}
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#endif
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#elif defined(WIN32)
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if ((ptr = getenv( "PATH" )))
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{
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notify(DEBUG_INFO) << "PATH = "<<ptr<<std::endl;
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strcat( path, PathDelimitor );
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strcat( path, ptr );
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}
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#else
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if( (ptr = getenv( "LD_LIBRARY_PATH" )))
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{
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strcat( path, PathDelimitor );
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strcat( path, ptr );
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}
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#endif
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// check existance of dso assembled direct paths.
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char* fileFound = NULL;
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fileFound = findFileInPath( name , path );
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if (fileFound) return fileFound;
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// failed with direct paths,
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// now try prepending the filename with "osgPlugins/"
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char* prependosgPlugins = osgNew char[strlen(name)+12];
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strcpy(prependosgPlugins,"osgPlugins/");
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strcat(prependosgPlugins,name);
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fileFound = findFileInPath( prependosgPlugins , path );
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osgDelete [] prependosgPlugins;
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return fileFound;
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#else // defined macintosh
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return NULL;
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#endif
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}
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std::string osgDB::findFileInDirectory(const std::string& fileName,const std::string& dirName,bool caseInsensitive)
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{
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bool needFollowingBackslash = false;
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bool needDirectoryName = true;
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osgDB::DirectoryContents dc;
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if (dirName.empty())
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{
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dc = osgDB::getDirectoryContents(".");
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needFollowingBackslash = false;
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needDirectoryName = false;
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}
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else if (dirName=="." || dirName=="./" || dirName==".\\")
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{
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dc = osgDB::getDirectoryContents(".");
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needFollowingBackslash = false;
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needDirectoryName = false;
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}
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else
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{
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dc = osgDB::getDirectoryContents(dirName);
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char lastChar = dirName[dirName.size()-1];
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if (lastChar=='/') needFollowingBackslash = false;
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else if (lastChar=='\\') needFollowingBackslash = false;
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else needFollowingBackslash = true;
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needDirectoryName = true;
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}
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for(osgDB::DirectoryContents::iterator itr=dc.begin();
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itr!=dc.end();
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++itr)
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{
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if ((caseInsensitive && osgDB::equalCaseInsensitive(fileName,*itr)) ||
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(fileName==*itr))
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{
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if (!needDirectoryName) return *itr;
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else if (needFollowingBackslash) return dirName+'/'+*itr;
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else return dirName+*itr;
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}
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}
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return "";
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}
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// moved each platforms file access definitions into their own file
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// to make it easier to manage them.
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#if defined(WIN32) && !defined(__CYGWIN__)
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#include <io.h>
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#include <direct.h>
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osgDB::DirectoryContents osgDB::getDirectoryContents(const std::string& dirName)
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{
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osgDB::DirectoryContents contents;
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WIN32_FIND_DATA data;
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HANDLE handle = FindFirstFile((dirName + "\\*").c_str(), &data);
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if (handle != INVALID_HANDLE_VALUE)
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{
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do
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{
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contents.push_back(data.cFileName);
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}
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while (FindNextFile(handle, &data) != 0);
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FindClose(handle);
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}
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return contents;
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}
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#elif !defined(macintosh) // UNIX
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#include <dirent.h>
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osgDB::DirectoryContents osgDB::getDirectoryContents(const std::string& dirName)
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{
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osgDB::DirectoryContents contents;
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DIR *handle = opendir(dirName.c_str());
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if (handle)
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{
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dirent *rc;
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while((rc = readdir(handle))!=NULL)
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{
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contents.push_back(rc->d_name);
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}
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closedir(handle);
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}
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return contents;
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}
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#include "FileUtils_Windows.cpp"
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#elif defined(TARGET_API_MAC_CARBON)
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#include "FileUtils_Mac.cpp"
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#else
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#include "FileUtils_Unix.cpp"
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#endif
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