Function lmpfs_readdir

src/mount/fuse_mount.cpp:130–207

#if FUSE_USE_VERSION >= 30
int lmpfs_readdir(const char* path, void* buf, fuse_fill_dir_t filler,
                  off_t, struct fuse_file_info*,
                  enum fuse_readdir_flags) {
#else
int lmpfs_readdir(const char* path, void* buf, fuse_fill_dir_t filler,
                  off_t, struct fuse_file_info*) {
#endif
    try {
        auto node = resolve_node(path);
        if (!node) return -ENOENT;
        if (!node->is_dir()) return -ENOTDIR;
#if FUSE_USE_VERSION >= 30
        filler(buf, ".", nullptr, 0, static_cast<fuse_fill_dir_flags>(0));
        filler(buf, "..", nullptr, 0, static_cast<fuse_fill_dir_flags>(0));
#else
        filler(buf, ".", nullptr, 0);
        filler(buf, "..", nullptr, 0);
#endif
        for (const auto& e : node->list()) {
            struct stat st {};
            fill_stat(e.node, &st, true);
#if FUSE_USE_VERSION >= 30
            if (filler(buf, e.name.c_str(), &st, 0,
                       static_cast<fuse_fill_dir_flags>(0)) != 0)
                break;
#else
            if (filler(buf, e.name.c_str(), &st, 0) != 0)
                break;
#endif
        }
        return 0;
    } catch (const std::exception&) {
        return -ENOENT;
    }
}

int lmpfs_statfs(const char*, struct statvfs* stbuf) {
    std::memset(stbuf, 0, sizeof(*stbuf));
    stbuf->f_bsize = 4096;
    stbuf->f_frsize = 4096;
    stbuf->f_blocks = (16ULL * 1024 * 1024 * 1024) / 4096;
    stbuf->f_bfree = 0;
    stbuf->f_bavail = 0;
    stbuf->f_files = 1024 * 1024;
    stbuf->f_ffree = 0;
    stbuf->f_namemax = 255;
    return 0;
}

fuse_operations make_ops() {
    fuse_operations ops {};
    ops.getattr = lmpfs_getattr;
    ops.open = lmpfs_open;
    ops.read = lmpfs_read;
    ops.readdir = lmpfs_readdir;
    ops.statfs = lmpfs_statfs;
    return ops;
}