gkfs_functions.hpp 2.55 KiB
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/*
  Copyright 2018-2019, Barcelona Supercomputing Center (BSC), Spain
  Copyright 2015-2019, Johannes Gutenberg Universitaet Mainz, Germany

  This software was partially supported by the
  EC H2020 funded project NEXTGenIO (Project ID: 671951, www.nextgenio.eu).

  This software was partially supported by the
  ADA-FS project under the SPPEXA project funded by the DFG.

  SPDX-License-Identifier: MIT
*/

#ifndef GEKKOFS_GKFS_FUNCTIONS_HPP
#define GEKKOFS_GKFS_FUNCTIONS_HPP

#include <client/open_file_map.hpp>
#include <global/metadata.hpp>

std::shared_ptr<Metadata> gkfs_metadata(const std::string& path, bool follow_links = false);

int check_parent_dir(const std::string& path);

int gkfs_open(const std::string& path, mode_t mode, int flags);

int gkfs_mk_node(const std::string& path, mode_t mode);

int gkfs_rm_node(const std::string& path);

int gkfs_access(const std::string& path, int mask, bool follow_links = true);

int gkfs_stat(const std::string& path, struct stat* buf, bool follow_links = true);

int gkfs_statvfs(struct statvfs* buf);

int gkfs_statfs(struct statfs* buf);

off64_t gkfs_lseek(unsigned int fd, off64_t offset, unsigned int whence);

off64_t gkfs_lseek(std::shared_ptr<OpenFile> gkfs_fd, off64_t offset, unsigned int whence);

int gkfs_truncate(const std::string& path, off_t offset);

int gkfs_truncate(const std::string& path, off_t old_size, off_t new_size);

int gkfs_dup(int oldfd);

int gkfs_dup2(int oldfd, int newfd);

#ifdef HAS_SYMLINKS

int gkfs_mk_symlink(const std::string& path, const std::string& target_path);

int gkfs_readlink(const std::string& path, char* buf, int bufsize);

#endif


ssize_t gkfs_pwrite(std::shared_ptr<OpenFile> file,
                    const char* buf, size_t count, off64_t offset);

ssize_t gkfs_pwrite_ws(int fd, const void* buf, size_t count, off64_t offset);

ssize_t gkfs_write(int fd, const void* buf, size_t count);

ssize_t gkfs_pwritev(int fd, const struct iovec* iov, int iovcnt, off_t offset);

ssize_t gkfs_writev(int fd, const struct iovec* iov, int iovcnt);

ssize_t gkfs_pread(std::shared_ptr<OpenFile> file, char* buf, size_t count, off64_t offset);

ssize_t gkfs_pread_ws(int fd, void* buf, size_t count, off64_t offset);

ssize_t gkfs_read(int fd, void* buf, size_t count);


int gkfs_opendir(const std::string& path);

int getdents(unsigned int fd,
             struct linux_dirent* dirp,
             unsigned int count);

int getdents64(unsigned int fd,
               struct linux_dirent64* dirp,
               unsigned int count);

int gkfs_rmdir(const std::string& path);

#endif //GEKKOFS_GKFS_FUNCTIONS_HPP