forked from jiuyuan/JYCache
58 lines
2.1 KiB
C
58 lines
2.1 KiB
C
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#ifndef ABSTRACT_FILESYSTEM_H
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#define ABSTRACT_FILESYSTEM_H
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#include <string>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <stdexcept>
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#include "common/common.h"
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namespace intercept {
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namespace filesystem {
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using intercept::common::DirStream;
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class AbstractFileSystem {
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public:
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virtual ~AbstractFileSystem() {}
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virtual void Init() = 0;
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virtual void Shutdown() = 0;
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virtual int Open(const char* path, int flags, int mode) = 0;
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virtual ssize_t Read(int fd, void* buf, size_t count) = 0;
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virtual ssize_t Write(int fd, const void* buf, size_t count) = 0;
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virtual int Close(int fd) = 0;
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virtual off_t Lseek(int fd, off_t offset, int whence) = 0;
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virtual int Stat(const char* path, struct stat* st) = 0;
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virtual int Fstat(int fd, struct stat* st) = 0;
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virtual int Fsync(int fd) = 0;
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virtual int Truncate(const char* path, off_t length) = 0;
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virtual int Ftruncate(int fd, off_t length) = 0;
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virtual int Unlink(const char* path) = 0;
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virtual int Mkdir(const char* path, mode_t mode) = 0;
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virtual int Opendir(const char* path, DirStream* dirstream) = 0;
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virtual int Getdents(DirStream* dirstream, char* contents, size_t maxread, ssize_t* realbytes) = 0;
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virtual int Closedir(DirStream* dirstream) = 0;
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virtual int Rmdir(const char* path) = 0;
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virtual int Chmod(const char* path, mode_t mode) = 0;
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virtual int Chown(const char* path, uid_t owner, gid_t group) = 0;
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virtual int Rename(const char* oldpath, const char* newpath) = 0;
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virtual int Link(const char* oldpath, const char* newpath) = 0;
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virtual int Symlink(const char* oldpath, const char* newpath) = 0;
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virtual int Readlink(const char* path, char* buf, size_t bufsize) = 0;
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virtual int Utime(const char* path, const struct utimbuf* times) = 0;
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virtual ssize_t MultiRead(int fd, void* buf, size_t count) {}
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virtual ssize_t MultiWrite(int fd, const void* buf, size_t count) {}
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protected:
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virtual std::string NormalizePath(const std::string& path) = 0;
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};
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} // namespace filesystem
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} // namespace intercept
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#endif // ABSTRACT_FILESYSTEM_H
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