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Cider Isn't Darwin Emulation, Really
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at android
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229/* * Copyright (c) 2000-2007 Apple Inc. All rights reserved. * * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. The rights granted to you under the License * may not be used to create, or enable the creation or redistribution of, * unlawful or unlicensed copies of an Apple operating system, or to * circumvent, violate, or enable the circumvention or violation of, any * terms of an Apple operating system software license agreement. * * Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ *//* Copyright (c) 1995, 1997 Apple Computer, Inc. All Rights Reserved *//* * Copyright (c) 1982, 1986, 1989, 1993 * The Regents of the University of California. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * @(#)file.h 8.3 (Berkeley) 1/9/95 */
#ifndef _SYS_FILE_INTERNAL_H_#define _SYS_FILE_INTERNAL_H_
#include <sys/appleapiopts.h>#include <sys/fcntl.h>#include <sys/unistd.h>
#ifdef KERNEL#include <sys/errno.h>#include <sys/queue.h>#include <sys/cdefs.h>#include <sys/lock.h>#include <sys/file.h>
struct proc;struct uio;struct knote;#ifdef __APPLE_API_UNSTABLE
struct file;
/* * Kernel descriptor table. * One entry for each open kernel vnode and socket. */struct fileproc { unsigned int f_flags; int32_t f_iocount; struct fileglob * f_fglob; void * f_waddr;};
#define FILEPROC_NULL (struct fileproc *)0
#define FP_INCREATE 0x0001#define FP_INCLOSE 0x0002#define FP_INSELECT 0x0004#define FP_INCHRREAD 0x0000 /* disable FP_INCHRREAD <rdar://6986929> */#define FP_WRITTEN 0x0010#define FP_CLOSING 0x0020#define FP_WAITCLOSE 0x0040#define FP_AIOISSUED 0x0080#define FP_WAITEVENT 0x0100#define FP_SELCONFLICT 0x0200 /* select conflict on an individual fp */
#define FP_VALID_FLAGS (FP_INCREATE | FP_INCLOSE | FP_INSELECT | FP_INCHRREAD | FP_WRITTEN | FP_CLOSING | FP_WAITCLOSE | FP_AIOISSUED | FP_WAITEVENT | FP_SELCONFLICT)
#ifndef _KAUTH_CRED_T#define _KAUTH_CRED_Tstruct ucred;typedef struct ucred *kauth_cred_t;struct posix_cred;typedef struct posix_cred *posix_cred_t;#endif /* !_KAUTH_CRED_T */
/* file types */typedef enum { DTYPE_VNODE = 1, /* file */ DTYPE_SOCKET, /* communications endpoint */ DTYPE_PSXSHM, /* POSIX Shared memory */ DTYPE_PSXSEM, /* POSIX Semaphores */ DTYPE_KQUEUE, /* kqueue */ DTYPE_PIPE, /* pipe */ DTYPE_FSEVENTS /* fsevents */} file_type_t;
/* defines for fg_lflags */#define FG_TERM 0x01 /* the fileglob is terminating .. */#define FG_INSMSGQ 0x02 /* insert to msgqueue pending .. */#define FG_WINSMSGQ 0x04 /* wait for the fielglob is in msgque */#define FG_RMMSGQ 0x08 /* the fileglob is being removed from msgqueue */#define FG_WRMMSGQ 0x10 /* wait for the fileglob to be removed from msgqueue */#define FG_PORTMADE 0x20 /* a port was at some point created for this fileglob */#define FG_NOSIGPIPE 0x40 /* don't deliver SIGPIPE with EPIPE return */
struct fileglob { LIST_ENTRY(fileglob) f_msglist;/* list of active files */ int32_t fg_flag; /* see fcntl.h */ file_type_t fg_type; /* descriptor type */ int32_t fg_count; /* reference count */ int32_t fg_msgcount; /* references from message queue */ kauth_cred_t fg_cred; /* credentials associated with descriptor */ struct fileops { int (*fo_read) (struct fileproc *fp, struct uio *uio, int flags, vfs_context_t ctx); int (*fo_write) (struct fileproc *fp, struct uio *uio, int flags, vfs_context_t ctx);#define FOF_OFFSET 0x00000001 /* offset supplied to vn_write */#define FOF_PCRED 0x00000002 /* cred from proc, not current thread */ int (*fo_ioctl) (struct fileproc *fp, u_long com, caddr_t data, vfs_context_t ctx); int (*fo_select) (struct fileproc *fp, int which, void *wql, vfs_context_t ctx); int (*fo_close) (struct fileglob *fg, vfs_context_t ctx); int (*fo_kqfilter) (struct fileproc *fp, struct knote *kn, vfs_context_t ctx); int (*fo_drain) (struct fileproc *fp, vfs_context_t ctx); } *fg_ops; off_t fg_offset; void *fg_data; /* vnode or socket or SHM or semaphore */ lck_mtx_t fg_lock; int32_t fg_lflags; /* file global flags */#if CONFIG_MACF struct label *fg_label; /* JMM - use the one in the cred? */#endif};
#ifdef __APPLE_API_PRIVATELIST_HEAD(fmsglist, fileglob);extern struct fmsglist fmsghead; /* head of list of open files */extern int maxfiles; /* kernel limit on number of open files */extern int nfiles; /* actual number of open files */extern int maxfilesperproc;#endif /* __APPLE_API_PRIVATE */
__BEGIN_DECLSint fo_read(struct fileproc *fp, struct uio *uio, int flags, vfs_context_t ctx);int fo_write(struct fileproc *fp, struct uio *uio, int flags, vfs_context_t ctx);int fo_ioctl(struct fileproc *fp, u_long com, caddr_t data, vfs_context_t ctx);int fo_select(struct fileproc *fp, int which, void *wql, vfs_context_t ctx);int fo_close(struct fileglob *fg, vfs_context_t ctx);int fo_kqfilter(struct fileproc *fp, struct knote *kn, vfs_context_t ctx);void fileproc_drain(proc_t, struct fileproc *);int fp_drop(struct proc *p, int fd, struct fileproc *fp, int locked);int fp_drop_written(proc_t p, int fd, struct fileproc *fp);int fp_drop_event(proc_t p, int fd, struct fileproc *fp);int fp_free(struct proc * p, int fd, struct fileproc * fp);struct kqueue;int fp_getfkq(struct proc *p, int fd, struct fileproc **resultfp, struct kqueue **resultkq);struct psemnode;int fp_getfpsem(struct proc *p, int fd, struct fileproc **resultfp, struct psemnode **resultpsem);struct pshmnode;int fp_getfpshm(struct proc *p, int fd, struct fileproc **resultfp, struct pshmnode **resultpshm);struct pipe;int fp_getfpipe(struct proc *p, int fd, struct fileproc **resultfp, struct pipe **resultpipe);struct atalk;int fp_getfatalk(struct proc *p, int fd, struct fileproc **resultfp, struct atalk **resultatalk);struct vnode;int fp_getfvp(struct proc *p, int fd, struct fileproc **resultfp, struct vnode **resultvp);int fp_getfvpandvid(struct proc *p, int fd, struct fileproc **resultfp, struct vnode **resultvp, uint32_t * vidp);struct socket;int fp_getfsock(struct proc *p, int fd, struct fileproc **resultfp, struct socket **results);int fp_lookup(struct proc *p, int fd, struct fileproc **resultfp, int locked);int closef_locked(struct fileproc *fp, struct fileglob *fg, struct proc *p);void fg_insertuipc(struct fileglob * fg);void fg_removeuipc(struct fileglob * fg);void unp_gc_wait(void);void procfdtbl_reservefd(struct proc * p, int fd);void procfdtbl_markclosefd(struct proc * p, int fd);void procfdtbl_releasefd(struct proc * p, int fd, struct fileproc * fp);void procfdtbl_waitfd(struct proc * p, int fd);void procfdtbl_clearfd(struct proc * p, int fd);boolean_t filetype_issendable(file_type_t type);extern int fdgetf_noref(proc_t, int, struct fileproc **);__END_DECLS
#endif /* __APPLE_API_UNSTABLE */
#endif /* KERNEL */
#endif /* !_SYS_FILE_INTERNAL_H_ */