minix/servers/vfs/glo.h
2011-11-24 13:57:36 +01:00

37 lines
1.7 KiB
C

/* EXTERN should be extern except for the table file */
#ifdef _TABLE
#undef EXTERN
#define EXTERN
#endif
/* File System global variables */
EXTERN struct fproc *fp; /* pointer to caller's fproc struct */
EXTERN int super_user; /* 1 if caller is super_user, else 0 */
EXTERN int susp_count; /* number of procs suspended on pipe */
EXTERN int nr_locks; /* number of locks currently in place */
EXTERN int reviving; /* number of pipe processes to be revived */
EXTERN dev_t root_dev; /* device number of the root device */
EXTERN int ROOT_FS_E; /* kernel endpoint of the root FS proc */
EXTERN u32_t system_hz; /* system clock frequency. */
/* The parameters of the call are kept here. */
EXTERN message m_in; /* the input message itself */
EXTERN message m_out; /* the output message used for reply */
EXTERN int who_p, who_e; /* caller's proc number, endpoint */
EXTERN int call_nr; /* system call number */
EXTERN message mount_m_in; /* the input message for a mount request */
EXTERN char mount_label[LABEL_MAX]; /* label of file system to mount */
EXTERN char user_fullpath[PATH_MAX]; /* storage for user path name */
/* The following variables are used for returning results to the caller. */
EXTERN int err_code; /* temporary storage for error number */
/* Data initialized elsewhere. */
extern _PROTOTYPE (int (*call_vec[]), (void) ); /* sys call table */
extern _PROTOTYPE (int (*pfs_call_vec[]), (void) ); /* pfs callback table */
extern char dot1[2]; /* dot1 (&dot1[0]) and dot2 (&dot2[0]) have a special */
extern char dot2[3]; /* meaning to search_dir: no access permission check. */
extern char mode_map[]; /* mapping from O_ACCMODE mask to R_BIT/W_BIT flags */