mc/vfs/vfs.h

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C
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1998-02-27 07:54:42 +03:00
#ifndef __VFS_H
#define __VFS_H
#if !defined(SCO_FLAVOR) || !defined(_SYS_SELECT_H)
# include <sys/time.h> /* alex: this redefines struct timeval */
#endif /* SCO_FLAVOR */
#ifdef HAVE_UTIME_H
# include <utime.h>
#else
struct utimbuf {
time_t actime;
time_t modtime;
};
#endif
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#ifdef USE_VFS
#ifdef HAVE_MMAP
#include <sys/mman.h>
#endif
/* Our virtual file system layer */
typedef void * vfsid;
struct vfs_stamping;
typedef struct {
void *(*open)(char *fname, int flags, int mode);
int (*close)(void *vfs_info);
int (*read)(void *vfs_info, char *buffer, int count);
int (*write)(void *vfs_info, char *buf, int count);
void *(*opendir)(char *dirname);
void *(*readdir)(void *vfs_info);
int (*closedir)(void *vfs_info);
int (*stat)(char *path, struct stat *buf);
int (*lstat)(char *path, struct stat *buf);
int (*fstat)(void *vfs_info, struct stat *buf);
int (*chmod)(char *path, int mode);
int (*chown)(char *path, int owner, int group);
int (*utime)(char *path, struct utimbuf *times);
int (*readlink)(char *path, char *buf, int size);
int (*symlink)(char *n1, char *n2);
int (*link)(char *p1, char *p2);
int (*unlink)(char *path);
int (*rename)(char *p1, char *p2);
int (*chdir)(char *path);
int (*ferrno)(void);
int (*lseek)(void *vfs_info, off_t offset, int whence);
int (*mknod)(char *path, int mode, int dev);
vfsid (*getid)(char *path, struct vfs_stamping **parent);
int (*nothingisopen)(vfsid id);
void (*free)(vfsid id);
char *(*getlocalcopy)(char *filename);
void (*ungetlocalcopy)(char *filename, char *local, int has_changed);
int (*mkdir)(char *path, mode_t mode);
int (*rmdir)(char *path);
int (*ctl)(void *vfs_info, int ctlop, int arg);
int (*setctl)(char *path, int ctlop, char *arg);
void (*forget_about)(char *path);
#ifdef HAVE_MMAP
caddr_t (*mmap)(caddr_t addr, size_t len, int prot, int flags, void *vfs_info, off_t offset);
int (*munmap)(caddr_t addr, size_t len, void *vfs_info);
#endif
} vfs;
/* Other file systems */
extern vfs local_vfs_ops;
extern vfs tarfs_vfs_ops;
extern vfs ftpfs_vfs_ops;
extern vfs mcfs_vfs_ops;
extern vfs extfs_vfs_ops;
extern vfs undelfs_vfs_ops;
struct vfs_stamping {
vfs *v;
vfsid id;
struct vfs_stamping *parent; /* At the moment applies to tarfs only */
struct vfs_stamping *next;
struct timeval time;
};
void vfs_init (void);
void vfs_shut (void);
extern int vfs_type_absolute;
vfs *vfs_type (char *path);
vfsid vfs_ncs_getid (vfs *nvfs, char *dir, struct vfs_stamping **par);
void vfs_rm_parents (struct vfs_stamping *stamp);
char *vfs_path (char *path);
char *vfs_canon (char *path);
char *mc_get_current_wd (char *buffer, int bufsize);
int vfs_current_is_local (void);
int vfs_current_is_extfs (void);
int vfs_current_is_tarfs (void);
int vfs_file_is_local (char *name);
int vfs_file_is_ftp (char *filename);
char *vfs_get_current_dir (void);
void vfs_stamp (vfs *, vfsid);
void vfs_rmstamp (vfs *, vfsid, int);
void vfs_addstamp (vfs *, vfsid, struct vfs_stamping *);
void vfs_add_noncurrent_stamps (vfs *, vfsid, struct vfs_stamping *);
void vfs_add_current_stamps (void);
void vfs_free_resources(char *path);
void vfs_timeout_handler ();
int vfs_timeouts ();
void vfs_force_expire (char *pathname);
void vfs_fill_names (void (*)(char *));
/* Required for the vfs_canon routine */
char *tarfs_analysis (char *inname, char **archive, int is_dir);
void ftpfs_init(void);
void ftpfs_done(void);
void ftpfs_set_debug (char *file);
#ifdef USE_NETCODE
void ftpfs_hint_reread(int reread);
void ftpfs_flushdir(void);
#else
# define ftpfs_flushdir()
# define ftpfs_hint_reread(x)
#endif
/* They fill the file system names */
void mcfs_fill_names (void (*)(char *));
void ftpfs_fill_names (void (*)(char *));
void tarfs_fill_names (void (*)(char *));
char *ftpfs_gethome (char *);
char *mcfs_gethome (char *);
char *ftpfs_getupdir (char *);
char *mcfs_getupdir (char *);
/* Only the routines outside of the VFS module need the emulation macros */
int mc_open (char *file, int flags, ...);
int mc_close (int handle);
int mc_read (int handle, char *buffer, int count);
int mc_write (int hanlde, char *buffer, int count);
off_t mc_lseek (int fd, off_t offset, int whence);
int mc_chdir (char *);
DIR *mc_opendir (char *dirname);
struct dirent *mc_readdir(DIR *dirp);
int mc_closedir (DIR *dir);
int mc_stat (char *path, struct stat *buf);
int mc_lstat (char *path, struct stat *buf);
int mc_fstat (int fd, struct stat *buf);
int mc_chmod (char *path, int mode);
int mc_chown (char *path, int owner, int group);
int mc_utime (char *path, struct utimbuf *times);
int mc_readlink(char *path, char *buf, int bufsiz);
int mc_unlink (char *path);
int mc_symlink (char *name1, char *name2);
int mc_link (char *name1, char *name2);
int mc_mknod (char *, int, int);
int mc_rename (char *original, char *target);
int mc_write (int fd, char *buf, int nbyte);
int mc_rmdir (char *path);
int mc_mkdir (char *path, mode_t mode);
char *mc_getlocalcopy (char *filename);
void mc_ungetlocalcopy (char *filename, char *local, int has_changed);
char *mc_def_getlocalcopy (char *filename);
void mc_def_ungetlocalcopy (char *filename, char *local, int has_changed);
int mc_ctl (int fd, int ctlop, int arg);
int mc_setctl (char *path, int ctlop, char *arg);
#ifdef HAVE_MMAP
caddr_t mc_mmap (caddr_t, size_t, int, int, int, off_t);
int mc_unmap (caddr_t, size_t);
int mc_munmap (caddr_t addr, size_t len);
#endif /* HAVE_MMAP */
#else
#ifdef USE_NETCODE
# undef USE_NETCODE
#endif
# define vfs_fill_names(x)
# define vfs_add_current_stamps()
# define vfs_current_is_local() 1
# define vfs_file_is_local(x) 1
# define vfs_file_is_ftp(x) 0
# define vfs_current_is_tarfs() 0
# define vfs_current_is_extfs() 0
# define vfs_path(x) x
# define mc_close close
# define mc_read read
# define mc_write write
# define mc_lseek lseek
# define mc_opendir opendir
# define mc_readdir readdir
# define mc_closedir closedir
# define mc_get_current_wd(x,size) get_current_wd (x, size)
# define mc_fstat fstat
# define mc_lstat lstat
# define mc_readlink readlink
# define mc_symlink symlink
# define mc_rename rename
#ifndef __os2__
# define mc_open open
# define mc_utime utime
# define mc_chmod chmod
# define mc_chown chown
# define mc_chdir chdir
# define mc_unlink unlink
#endif
# define mc_mmap mmap
# define mc_munmap munmap
# define mc_ctl(a,b,c) 0
# define mc_setctl(a,b,c)
# define mc_stat stat
# define mc_mknod mknod
# define mc_link link
# define mc_mkdir mkdir
# define mc_rmdir rmdir
# define is_special_prefix(x) 0
# define vfs_type(x) (vfs *)(NULL)
# define vfs_setup_wd()
# define vfs_init()
# define vfs_shut()
# define vfs_canon(p) strdup (canonicalize_pathname(p))
# define vfs_free_resources()
# define vfs_timeout_handler()
# define vfs_timeouts() 0
# define vfs_force_expire ()
typedef int vfs;
# define mc_getlocalcopy(x) NULL
# define mc_ungetlocalcopy(x,y,z)
# define ftpfs_hint_reread(x)
# define ftpfs_flushdir()
#ifdef _OS_NT
# undef mc_rmdir
#endif
#ifdef OS2_NT
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# undef mc_ctl
# undef mc_unlink
# define mc_ctl(a,b,c) 0
# ifndef __EMX__
# undef mc_mkdir
# define mc_mkdir(a,b) mkdir(a)
# endif
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#endif
#endif /* USE_VFS */
#define mc_errno errno
#ifdef WANT_PARSE_LS_LGA
int parse_ls_lga (char *p, struct stat *s, char **filename, char **linkname);
#endif
#define MCCTL_SETREMOTECOPY 0
#define MCCTL_ISREMOTECOPY 1
#define MCCTL_REMOTECOPYCHUNK 2
#define MCCTL_FINISHREMOTE 3
#define MCCTL_FLUSHDIR 4
/* Return codes from the ${fs}_ctl routine */
#define MCERR_TARGETOPEN -1
/* Can't open target file */
#define MCERR_READ -2
/* Read error on source file */
#define MCERR_WRITE -3
/* Write error on target file */
#define MCERR_FINISH -4
/* Finished transfer */
#define MCERR_DATA_ON_STDIN -5
/* Data waiting on stdin to be processed */
#endif /* __VFS_H */