X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/9bccf70c0258c7cac2dcb80011b2a964d884c552..3a60a9f5b85abb8c2cf24e1926c5c7b3f608a5e2:/bsd/sys/filedesc.h?ds=sidebyside diff --git a/bsd/sys/filedesc.h b/bsd/sys/filedesc.h index 2353a06e2..5212cc45c 100644 --- a/bsd/sys/filedesc.h +++ b/bsd/sys/filedesc.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2003 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * @@ -78,8 +78,10 @@ #define NDFILE 25 /* 125 bytes */ #define NDEXTENT 50 /* 250 bytes in 256-byte alloc. */ +struct klist; + struct filedesc { - struct file **fd_ofiles; /* file structures for open files */ + struct fileproc **fd_ofiles; /* file structures for open files */ char *fd_ofileflags; /* per-process open file flags */ struct vnode *fd_cdir; /* current directory */ struct vnode *fd_rdir; /* root directory */ @@ -88,14 +90,27 @@ struct filedesc { u_short fd_freefile; /* approx. next free file */ u_short fd_cmask; /* mask for file creation */ u_short fd_refcnt; /* reference count */ + + int fd_knlistsize; /* size of knlist */ + struct klist *fd_knlist; /* list of attached knotes */ + u_long fd_knhashmask; /* size of knhash */ + struct klist *fd_knhash; /* hash table for attached knotes */ + int fd_flags; }; +/* + * definitions for fd_flags; + */ +#define FD_CHROOT 0x01 /* process was chrooted... keep track even */ + /* if we're force unmounted and unable to */ + /* take a vnode_ref on fd_rdir during a fork */ + /* * Per-process open flags. */ #define UF_EXCLOSE 0x01 /* auto-close on exec */ -#define UF_MAPPED 0x02 /* mapped from device */ #define UF_RESERVED 0x04 /* open pending / in progress */ +#define UF_CLOSING 0x08 /* close in progress */ /* * Storage required per open file descriptor. @@ -106,24 +121,23 @@ struct filedesc { /* * Kernel global variables and routines. */ -extern int dupfdopen __P((struct filedesc *fdp, - int indx, int dfd, int mode, int error)); -extern int fdalloc __P((struct proc *p, int want, int *result)); -extern void fdrelse __P((struct proc *p, int fd)); -extern int fdavail __P((struct proc *p, int n)); -extern int fdgetf __P((struct proc *p, int fd, struct file **resultfp)); +extern int dupfdopen(struct filedesc *fdp, + int indx, int dfd, int mode, int error); +extern int fdalloc(struct proc *p, int want, int *result); +extern void fdrelse(struct proc *p, int fd); +extern int fdavail(struct proc *p, int n); #define fdfile(p, fd) \ (&(p)->p_fd->fd_ofiles[(fd)]) #define fdflags(p, fd) \ (&(p)->p_fd->fd_ofileflags[(fd)]) -extern int falloc __P((struct proc *p, - struct file **resultfp, int *resultfd)); -extern void ffree __P((struct file *fp)); +extern int falloc(struct proc *p, + struct fileproc **resultfp, int *resultfd); +extern void ffree(struct file *fp); #ifdef __APPLE_API_PRIVATE -extern struct filedesc *fdcopy __P((struct proc *p)); -extern void fdfree __P((struct proc *p)); -extern void fdexec __P((struct proc *p)); +extern struct filedesc *fdcopy(struct proc *p); +extern void fdfree(struct proc *p); +extern void fdexec(struct proc *p); #endif /* __APPLE_API_PRIVATE */ #endif /* KERNEL */