144 lines
3.7 KiB
C++
144 lines
3.7 KiB
C++
#include "FilesystemImpl.h"
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#include <memory>
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#include <fcntl.h>
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#include "../fs_interface/Device.h"
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#include "../fs_interface/Dir.h"
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#include "../fuse/FuseErrnoException.h"
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#include "../fs_interface/File.h"
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#include "messmer/cpp-utils/pointer.h"
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using namespace fspp;
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using cpputils::dynamic_pointer_move;
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using std::unique_ptr;
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using std::make_unique;
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using std::vector;
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using std::string;
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namespace bf = boost::filesystem;
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FilesystemImpl::FilesystemImpl(Device *device)
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:_device(device), _open_files() {
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}
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FilesystemImpl::~FilesystemImpl() {
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}
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unique_ptr<File> FilesystemImpl::LoadFile(const bf::path &path) {
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auto node = _device->Load(path);
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auto file = dynamic_pointer_move<File>(node);
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if (!file) {
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throw fuse::FuseErrnoException(EISDIR);
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}
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return file;
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}
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unique_ptr<Dir> FilesystemImpl::LoadDir(const bf::path &path) {
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auto node = _device->Load(path);
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auto dir = dynamic_pointer_move<Dir>(node);
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if (!dir) {
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throw fuse::FuseErrnoException(ENOTDIR);
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}
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return dir;
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}
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int FilesystemImpl::openFile(const bf::path &path, int flags) {
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auto file = LoadFile(path);
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return openFile(*file, flags);
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}
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int FilesystemImpl::openFile(const File &file, int flags) {
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return _open_files.open(file.open(flags));
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}
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void FilesystemImpl::flush(int descriptor) {
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_open_files.get(descriptor)->flush();
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}
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void FilesystemImpl::closeFile(int descriptor) {
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_open_files.close(descriptor);
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}
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void FilesystemImpl::lstat(const bf::path &path, struct ::stat *stbuf) {
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_device->Load(path)->stat(stbuf);
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}
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void FilesystemImpl::fstat(int descriptor, struct ::stat *stbuf) {
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_open_files.get(descriptor)->stat(stbuf);
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}
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void FilesystemImpl::truncate(const bf::path &path, off_t size) {
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LoadFile(path)->truncate(size);
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}
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void FilesystemImpl::ftruncate(int descriptor, off_t size) {
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_open_files.get(descriptor)->truncate(size);
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}
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int FilesystemImpl::read(int descriptor, void *buf, size_t count, off_t offset) {
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return _open_files.get(descriptor)->read(buf, count, offset);
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}
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void FilesystemImpl::write(int descriptor, const void *buf, size_t count, off_t offset) {
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//printf("Write %d bytes to offset %d\n", count, offset);fflush(stdout);
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_open_files.get(descriptor)->write(buf, count, offset);
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}
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void FilesystemImpl::fsync(int descriptor) {
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_open_files.get(descriptor)->fsync();
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}
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void FilesystemImpl::fdatasync(int descriptor) {
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_open_files.get(descriptor)->fdatasync();
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}
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void FilesystemImpl::access(const bf::path &path, int mask) {
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_device->Load(path)->access(mask);
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}
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int FilesystemImpl::createAndOpenFile(const bf::path &path, mode_t mode) {
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//TODO Creating the file opens and closes it. We then reopen it afterwards.
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// This is slow. Improve!
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auto dir = LoadDir(path.parent_path());
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auto file = dir->createAndOpenFile(path.filename().native(), mode);
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return _open_files.open(std::move(file));
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}
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void FilesystemImpl::mkdir(const bf::path &path, mode_t mode) {
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auto dir = LoadDir(path.parent_path());
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dir->createDir(path.filename().native(), mode);
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}
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void FilesystemImpl::rmdir(const bf::path &path) {
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auto dir = LoadDir(path);
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dir->remove();
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}
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void FilesystemImpl::unlink(const bf::path &path) {
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auto file = LoadFile(path);
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file->remove();
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}
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void FilesystemImpl::rename(const bf::path &from, const bf::path &to) {
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auto node = _device->Load(from);
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node->rename(to);
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}
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unique_ptr<vector<Dir::Entry>> FilesystemImpl::readDir(const bf::path &path) {
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auto dir = LoadDir(path);
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return dir->children();
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}
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void FilesystemImpl::utimens(const bf::path &path, const timespec times[2]) {
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auto node = _device->Load(path);
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node->utimens(times);
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}
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void FilesystemImpl::statfs(const bf::path &path, struct statvfs *fsstat) {
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_device->statfs(path, fsstat);
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}
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