mars-nwe/include/nwfile.h

/* nwfile.h 10-Nov-99 */
#ifndef _NWFILE_H_
#define _NWFILE_H_
#include "extpipe.h"

typedef struct {
  int    task;          /* for which task		     */
  int      fd;          /* filehandle from system open/creat */
  long   offd;          /* actual file offset                */
  uint8  *p_mmap;       /* for use with mmap                 */
  int    size_mmap;
  time_t tmodi;         /* modification TIME                 */
  int    modified;      /* is file modified / written        */
  FILE_PIPE *f;         /* for PIPE                          */
  int fh_flags;         /* 2 = PIPE                          */
                        /* 4 = don't reuse after close       */
                        /* 0x20 = readonly                   */
  int    st_dev;        /* device 			     */
  int    st_ino;        /* inode 			     */
  char   fname[256];    /* UNIX filename                     */
  int    volume;        /* Volume			     */
  int    inuse;         /* used for multiple open of filehandle */
  int    access;        /* open access                       */
} FILE_HANDLE;

/* fh_flags */
#define FH_IS_PIPE           0x01
#define FH_IS_PIPE_COMMAND   0x02
#define FH_DO_NOT_REUSE      0x04
#define FH_IS_READONLY       0x20  /* filesystem is readonly */
#define FH_OPENED_RO         0x40  /* is opened RO */

extern void sig_bus_mmap(int rsig);

extern void init_file_module(int task);

extern int file_creat_open(int volume, uint8 *unixname,
                           struct stat *stbuff,
                           int attrib, int access, int creatmode, int task);

extern int nw_set_fdate_time(uint32 fhandle, uint8 *datum, uint8 *zeit);


extern int nw_close_file(int fhandle, int reset_reuse, int task);
extern int nw_commit_file(int fhandle);

extern uint8 *file_get_unix_name(int fhandle);

extern int nw_read_file(int fhandle, uint8 *data, int size, uint32 offset);
extern int nw_seek_file(int fhandle, int modus);
extern int nw_write_file(int fhandle, uint8 *data, int size, uint32 offset);
extern int nw_server_copy(int qfhandle, uint32 qoffset,
                   int zfhandle, uint32 zoffset,
                   uint32 size);

extern int nw_log_physical_record(int fhandle, uint32 offset, uint32 size, uint16 timeout, int do_lock);

extern int fd_2_fname(int fhandle, char *buf, int bufsize);
extern FILE_HANDLE *fd_2_fh(int fhandle);
extern int get_nwfd(int fhandle);
extern void log_file_module(FILE *f);
extern int nw_get_count_open_files(uint8 *handlebuf, uint32 offset);

extern  int nw_log_logical_record(int lock_flag,
                  int timeout,
                  int len,
                  uint8 *data);
extern void dump_locks(int dev, int inode, int fd, FILE *f);
#endif