C++ PHYSFS_enumerateFiles函数代码示例

void FS_Init(const char *argv0) {
	int err = PHYSFS_init(argv0);

	if (err == 0) {
		Con_Errorf(ERR_FATAL, "Error in PHYSFS_init: %s", PHYSFS_getErrorByCode(PHYSFS_getLastErrorCode()));
		return;
	}

	const char *baseDir = PHYSFS_getBaseDir();
	fs_basepath = Con_GetVarDefault("fs.basepath", baseDir, CONVAR_STARTUP);
	fs_basegame = Con_GetVarDefault("fs.basegame", "base", CONVAR_STARTUP);
	fs_game = Con_GetVarDefault("fs.game", DEFAULT_GAME, CONVAR_STARTUP);

	bool modLoaded = fs_game->string[0] != '\0';

	char **baseFiles, **gameFiles;

	// get the file listing for the basegame dir, then immediately unmount
	const char *fullBasePath = tempstr("%s/%s", fs_basepath->string, fs_basegame->string);
	PHYSFS_mount(fullBasePath, "/", 1);
	baseFiles = PHYSFS_enumerateFiles("/");
	PHYSFS_removeFromSearchPath(fullBasePath);

	// if fs_game is set, do the same thing for the fs_game dir
	if (modLoaded) {
		const char *fullGamePath = tempstr("%s/%s", fs_basepath->string, fs_game->string);
		PHYSFS_mount(fullGamePath, "/", 1);
		gameFiles = PHYSFS_enumerateFiles("/");
		PHYSFS_removeFromSearchPath(fullGamePath);

		// mount the mod dir first, then mount mod PK3s
		PHYSFS_mount(tempstr("%s/%s", fs_basepath->string, fs_game->string), "/", 1);
		FS_AddPaksFromList(gameFiles, fs_basepath->string, fs_game->string);
		PHYSFS_freeList(gameFiles);
	}

	// then mount the base game dir, then the mount base game PK3s
	PHYSFS_mount(tempstr("%s/%s", fs_basepath->string, fs_basegame->string), "/", 1);
	FS_AddPaksFromList(baseFiles, fs_basepath->string, fs_basegame->string);
	PHYSFS_freeList(baseFiles);

	// print all the files we've found in order of priority
	Con_Printf("Current filesystem search path:\n");
	PHYSFS_getSearchPathCallback(printSearchPath, NULL);
	Con_Printf("\n");

	// add command handler for dir to view virtual filesystem
	Con_AddCommand("dir", Cmd_Dir_f);
}

bool buildMapList(void)
{
	char ** filelist, ** file;
	size_t len;

	if (!loadLevFile("gamedesc.lev", mod_campaign, false))
	{
		return false;
	}
	loadLevFile("addon.lev", mod_multiplay, false);

	filelist = PHYSFS_enumerateFiles("");
	for ( file = filelist; *file != NULL; ++file )
	{
		len = strlen( *file );
		if ( len > 10 // Do not add addon.lev again
				&& !strcasecmp( *file+(len-10), ".addon.lev") )
		{
			loadLevFile(*file, mod_multiplay, true);
		}
		// add support for X player maps using a new name to prevent conflicts.
		if ( len > 13 && !strcasecmp( *file+(len-13), ".xplayers.lev") )
		{
			loadLevFile(*file, mod_multiplay, true);
		}

	}
	PHYSFS_freeList( filelist );
	return true;
}

static PHYSFSX_counted_list file_getdirlist(const char *dir)
{
	ntstring<PATH_MAX - 1> path;
	auto dlen = path.copy_if(dir);
	if ((!dlen && dir[0] != '\0') || !path.copy_if(dlen, "/"))
		return nullptr;
	++ dlen;
	PHYSFSX_counted_list list{PHYSFS_enumerateFiles(dir)};
	if (!list)
		return nullptr;
	const auto predicate = [&](char *i) -> bool {
		if (path.copy_if(dlen, i) && PHYSFS_isDirectory(path))
			return false;
		free(i);
		return true;
	};
	auto j = std::remove_if(list.begin(), list.end(), predicate);
	*j = NULL;
	auto NumDirs = j.get() - list.get();
	qsort(list.get(), NumDirs, sizeof(char *), string_array_sort_func);
	if (*dir)
	{
		// Put the 'go to parent directory' sequence '..' first
		++NumDirs;
		auto r = reinterpret_cast<char **>(realloc(list.get(), sizeof(char *)*(NumDirs + 1)));
		if (!r)
			return list;
		list.release();
		list.reset(r);
		std::move_backward(r, r + NumDirs, r + NumDirs + 1);
		list[0] = d_strdup("..");
	}
	list.set_count(NumDirs);
	return list;
}

void
ResourceManager::searchAndAddArchives(const std::string &path,
                                      const std::string &ext,
                                      bool append)
{
    const char *dirSep = PHYSFS_getDirSeparator();
    char **list = PHYSFS_enumerateFiles(path.c_str());

    for (char **i = list; *i != NULL; i++)
    {
        size_t len = strlen(*i);

        if (len > ext.length() && !ext.compare((*i)+(len - ext.length())))
        {
            std::string file, realPath, archive;

            file = path + (*i);
            realPath = std::string(PHYSFS_getRealDir(file.c_str()));
            archive = realPath + dirSep + file;

            addToSearchPath(archive, append);
        }
    }

    PHYSFS_freeList(list);
}

static int cmd_enumerate(char *args)
{
    char **rc;

    if (*args == '\"')
    {
        args++;
        args[strlen(args) - 1] = '\0';
    } /* if */

    rc = PHYSFS_enumerateFiles(args);

    if (rc == NULL)
        printf("Failure. reason: %s.\n", PHYSFS_getLastError());
    else
    {
        int file_count;
        char **i;
        for (i = rc, file_count = 0; *i != NULL; i++, file_count++)
            printf("%s\n", *i);

        printf("\n total (%d) files.\n", file_count);
        PHYSFS_freeList(rc);
    } /* else */

    return(1);
} /* cmd_enumerate */

Font::Font(GlyphWidth glyph_width_,
           const std::string& filename,
           int shadowsize_) :
  glyph_width(glyph_width_),
  glyph_surfaces(),
  shadow_surfaces(),
  char_height(),
  shadowsize(shadowsize_),
  glyphs(65536)
{
  for(unsigned int i=0; i<65536;i++) glyphs[i].surface_idx = -1;

  const std::string fontdir = FileSystem::dirname(filename);
  const std::string fontname = FileSystem::basename(filename);

  // scan for prefix-filename in addons search path
  char **rc = PHYSFS_enumerateFiles(fontdir.c_str());
  for (char **i = rc; *i != NULL; i++) {
    std::string filename(*i);
    if( filename.rfind(fontname) != std::string::npos ) {
      loadFontFile(fontdir + filename);
    }
  }
  PHYSFS_freeList(rc);
}

static int l_filesystem_enumerate(lua_State* state) {
  int n = lua_gettop(state);

  const char * dir = l_tools_toStringOrError(state, 1);
  int error = PHYSFS_mount(dir, "/", 1);

  if (error != 1)
    return printf("%s %s %s \n", "Error: Directory or archive named : ", dir ," does not exist");

  char **rc = PHYSFS_enumerateFiles("/");
  char **i;
  int index = 1;

  if( n != 1 )
    return luaL_error(state, "Function s a single parameter.");

  lua_newtable(state);

  for (i = rc; *i != 0; i++)
    {
      lua_pushinteger(state, index);
      lua_pushstring(state, *i);
      lua_settable(state, -3);
      index++;
    }

  PHYSFS_freeList(rc);
  return 1;
}

/*!
 * Tries to mount a list of directories, found in /basedir/subdir/<list>.
 * \param basedir Base directory
 * \param subdir A subdirectory of basedir
 * \param appendToPath Whether to append or prepend
 * \param checkList List of directories to check. NULL means any.
 */
void addSubdirs( const char * basedir, const char * subdir, const bool appendToPath, char * checkList[], bool addToModList )
{
	char tmpstr[PATH_MAX];
	char buf[256];
	char ** subdirlist = PHYSFS_enumerateFiles( subdir );
	char ** i = subdirlist;
	while( *i != NULL )
	{
#ifdef DEBUG
		debug( LOG_NEVER, "addSubdirs: Examining subdir: [%s]", *i );
#endif // DEBUG
		if (*i[0] != '.' && (!checkList || inList(checkList, *i)))
		{
			snprintf(tmpstr, sizeof(tmpstr), "%s%s%s%s", basedir, subdir, PHYSFS_getDirSeparator(), *i);
#ifdef DEBUG
			debug( LOG_NEVER, "addSubdirs: Adding [%s] to search path", tmpstr );
#endif // DEBUG
			if (addToModList)
			{
				addLoadedMod(*i);
				snprintf(buf, sizeof(buf), "mod: %s", *i);
				addDumpInfo(buf);
			}
			PHYSFS_addToSearchPath( tmpstr, appendToPath );
		}
		i++;
	}
	PHYSFS_freeList( subdirlist );
}

/**Enumerates all files available in a path.
 * \param path String pointing to the path
 * \return Nonzero on success */
list<string> Filesystem::Enumerate( const string& path, const string &suffix )
{
	list<string> files;
	char **rc;

	rc = PHYSFS_enumerateFiles(path.c_str());
	if (rc == NULL){
		LogMsg(ERR,"Failure to enumerate %s. reason: %s.\n",
				path.c_str(),PHYSFS_getLastError());
	}
	else
	{
		int file_count;
		char **i;
		for (i = rc, file_count = 0; *i != NULL; i++, file_count++)
		{
			files.push_back( string(*i) );
		}

		LogMsg(INFO,"\n total (%d) files.\n", file_count);
		PHYSFS_freeList(rc);
		return 1;
	}
	return files;
}

void MainMenu::fillLoadMenu( bool save /*= false*/ )
{
    const std::string buttonNames[]={"File0","File1","File2","File3","File4","File5"};

    char** rc = PHYSFS_enumerateFiles("/");

    char* curfile;
    CheckButton *button;

    for(int i=0;i<6;i++) {
        char* recentfile = NULL;
        PHYSFS_sint64 t = 0;

        std::stringstream filestart;
        filestart << i+1 << "_";
        if( save ){
            button = getCheckButton(*saveGameMenu.get(),buttonNames[i]);
        } else {
            button = getCheckButton(*loadGameMenu.get(),buttonNames[i]);
        }
        //make sure Button is connected only once
        button->clicked.clear();
        if( save )
            button->clicked.connect(makeCallback(*this,&MainMenu::selectSaveGameButtonClicked));
        else {
            button->clicked.connect(makeCallback(*this,&MainMenu::selectLoadGameButtonClicked));
        }
        for(char** i = rc; *i != 0; i++){
            curfile = *i;
            if(std::string( curfile ).find( filestart.str() ) == 0 ) {
                // && !( curfile->d_type & DT_DIR  ) ) is not portable. So
                // don't create a directoy named 2_ in a savegame-directory or
                // you can no longer load from slot 2.
                if (t == 0) {
                    recentfile = curfile;
                    t = PHYSFS_getLastModTime(recentfile);
              } else {
                    if (PHYSFS_getLastModTime(curfile) > t) {
/*#ifdef DEBUG
                        fprintf(stderr," %s is more recent than previous %s\n",
                                          curfile, recentfile);
#endif*/
                        recentfile = curfile;
                        t = PHYSFS_getLastModTime(recentfile);
                    }
                }
            }
        }
#ifdef DEBUG
        fprintf(stderr,"Most recent file: %s\n\n",recentfile);
#endif

        if(t != 0) {
            std::string f= recentfile;
            button->setCaptionText(f);
        } else {
            button->setCaptionText(_("empty"));
        }
    }
}

WzConfig::WzConfig(const QString &name, WzConfig::warning warning, QObject *parent)
	: WzConfigHack(name, (int)warning), m_settings(QString("wz::") + name, QSettings::IniFormat, parent), m_overrides()
{
	if (m_settings.status() != QSettings::NoError && (warning != ReadOnly || PHYSFS_exists(name.toUtf8().constData())))
	{
		debug(LOG_FATAL, "Could not open \"%s\"", name.toUtf8().constData());
	}
	char **diffList = PHYSFS_enumerateFiles("diffs");
	char **i;
	int j;
	for (i = diffList; *i != NULL; i++) 
	{
		std::string str(std::string("diffs/") + *i + std::string("/") + name.toUtf8().constData());
		if (!PHYSFS_exists(str.c_str())) 
			continue;
		QSettings tmp(QString("wz::") + str.c_str(), QSettings::IniFormat);
		if (tmp.status() != QSettings::NoError)
		{
			debug(LOG_FATAL, "Could not read an override for \"%s\"", name.toUtf8().constData());
		}
		QStringList keys(tmp.allKeys());
		for (j = 0; j < keys.length(); j++)
		{
			m_overrides.insert(keys[j],tmp.value(keys[j]));
		}
	}
	PHYSFS_freeList(diffList);
}

void Game::testAllHelpFiles(){
    getGameView()->printStatusMessage( "Testing Help Files...");

    std::string filename;
    std::string directory = "help/en";
    std::string fullname;
    char **rc = PHYSFS_enumerateFiles( directory.c_str() );
    char **i;
    size_t pos;
    for (i = rc; *i != NULL; i++) {
        fullname = directory;
        fullname.append( *i );
        filename.assign( *i );

        if(PHYSFS_isDirectory(fullname.c_str()))
            continue;

        pos = filename.rfind( ".xml" );
        if( pos != std::string::npos ){
            filename.replace( pos, 4 ,"");
            std::cerr << "--- Examining " << filename << "\n";
            helpWindow->showTopic( filename );
            std::cerr << "\n";
        }
    }
    PHYSFS_freeList(rc);
}

std::string
AddonManager::scan_for_info(const std::string& archive_os_path) const
{
  std::unique_ptr<char*, decltype(&PHYSFS_freeList)>
    rc2(PHYSFS_enumerateFiles("/"),
        PHYSFS_freeList);
  for(char** j = rc2.get(); *j != 0; ++j)
  {
    if (has_suffix(*j, ".nfo"))
    {
      std::string nfo_filename = FileSystem::join("/", *j);

      // make sure it's in the current archive_os_path
      const char* realdir = PHYSFS_getRealDir(nfo_filename.c_str());
      if (!realdir)
      {
        log_warning << "PHYSFS_getRealDir() failed for " << nfo_filename << ": " << PHYSFS_getLastError() << std::endl;
      }
      else
      {
        if (realdir == archive_os_path)
        {
          return nfo_filename;
        }
      }
    }
  }

  return std::string();
}

void removeSubdirs( const char * basedir, const char * subdir, char * checkList[] )
{
	char tmpstr[PATH_MAX];
	char ** subdirlist = PHYSFS_enumerateFiles( subdir );
	char ** i = subdirlist;
	while( *i != NULL )
	{
#ifdef DEBUG
		debug( LOG_NEVER, "removeSubdirs: Examining subdir: [%s]", *i );
#endif // DEBUG
		if( !checkList || inList( checkList, *i ) )
		{
			snprintf(tmpstr, sizeof(tmpstr), "%s%s%s%s", basedir, subdir, PHYSFS_getDirSeparator(), *i);
#ifdef DEBUG
			debug( LOG_NEVER, "removeSubdirs: Removing [%s] from search path", tmpstr );
#endif // DEBUG
			if (!PHYSFS_removeFromSearchPath( tmpstr ))
			{
#ifdef DEBUG	// spams a ton!
				debug(LOG_NEVER, "Couldn't remove %s from search path because %s", tmpstr, PHYSFS_getLastError());
#endif // DEBUG
			}
		}
		i++;
	}
	PHYSFS_freeList( subdirlist );
}

ReplayMenuState::ReplayMenuState() :
    mLeftPlayer(LEFT_PLAYER),
    mRightPlayer(RIGHT_PLAYER)
{
    IMGUI::getSingleton().resetSelection();
    mReplaying = false;
    mChecksumError = false;

    mReplayMatch = 0;
    mReplayRecorder = 0;
    mSelectedReplay = 0;
    char** filenames = PHYSFS_enumerateFiles("replays");
    for (int i = 0; filenames[i] != 0; ++i)
    {
        std::string tmp(filenames[i]);
        if (tmp.find(".bvr") != std::string::npos)
        {
            mReplayFiles.push_back(std::string(tmp.begin(), tmp.end()-4));
        }
    }
    if (mReplayFiles.size() == 0)
        mSelectedReplay = -1;
    std::sort(mReplayFiles.rbegin(), mReplayFiles.rend());

    mLeftPlayer.loadFromConfig("left");
    mRightPlayer.loadFromConfig("right");
}