/*
* Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
+ * 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.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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 OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
+ * 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_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* Copyright (c) 1997 Apple Computer, Inc. All Rights Reserved */
/*-
#include <sys/termios.h>
#include <sys/select.h> /* For struct selinfo. */
-#ifdef __APPLE_API_UNSTABLE
-#ifndef __APPLE__
-/*
- * Clists are character lists, which is a variable length linked list
- * of cblocks, with a count of the number of characters in the list.
- */
-struct clist {
- int c_cc; /* Number of characters in the clist. */
- int c_cbcount; /* Number of cblocks. */
- int c_cbmax; /* Max # cblocks allowed for this clist. */
- int c_cbreserved; /* # cblocks reserved for this clist. */
- char *c_cf; /* Pointer to the first cblock. */
- char *c_cl; /* Pointer to the last cblock. */
-};
-#else /* __APPLE__ */
+#ifdef KERNEL
+
+__BEGIN_DECLS
+#include <kern/locks.h>
+__END_DECLS
+
/*
* NetBSD Clists are actually ring buffers. The c_cc, c_cf, c_cl fields have
* exactly the same behaviour as in true clists.
#define TTYCLSIZE 1024
#endif
-#endif /* __APPLE__ */
/*
* Per-tty structure.
* (low, high, timeout).
*/
struct tty {
+ lck_mtx_t t_lock; /* Per tty lock */
+
struct clist t_rawq; /* Device raw input queue. */
long t_rawcc; /* Raw input queue statistics. */
struct clist t_canq; /* Device canonical queue. */
struct termios t_termios; /* Termios state. */
struct winsize t_winsize; /* Window size. */
/* Start output. */
- void (*t_oproc) __P((struct tty *));
+ void (*t_oproc)(struct tty *);
/* Stop output. */
- void (*t_stop) __P((struct tty *, int));
+ void (*t_stop)(struct tty *, int);
/* Set hardware state. */
- int (*t_param) __P((struct tty *, struct termios *));
+ int (*t_param)(struct tty *, struct termios *);
void *t_sc; /* XXX: net/if_sl.c:sl_softc. */
int t_column; /* Tty output column. */
int t_rocount, t_rocol; /* Tty. */
int t_hiwat; /* High water mark. */
int t_lowat; /* Low water mark. */
int t_gen; /* Generation number. */
+ void *t_iokit; /* IOKit management */
};
+#define TTY_NULL (struct tty *)0
+
#define t_cc t_termios.c_cc
#define t_cflag t_termios.c_cflag
#define t_iflag t_termios.c_iflag
#define TTYHOG 1024
#endif
-#ifdef KERNEL
#define TTMAXHIWAT roundup(2048, CBSIZE)
#define TTMINHIWAT roundup(100, CBSIZE)
#define TTMAXLOWAT 256
#define TTMINLOWAT 32
+#else
+struct tty;
+struct clist;
#endif /* KERNEL */
/* These flags are kept in t_state. */
#define TTY_OE 0x04000000 /* Overrun error */
#define TTY_BI 0x08000000 /* Break condition */
-/* Is tp controlling terminal for p? */
-#define isctty(p, tp) \
- ((p)->p_session == (tp)->t_session && (p)->p_flag & P_CONTROLT)
-
-/* Is p in background of tp? */
-#define isbackground(p, tp) \
- (isctty((p), (tp)) && (p)->p_pgrp != (tp)->t_pgrp)
+#ifdef KERNEL
/* Unique sleep addresses. */
#define TSA_CARR_ON(tp) ((void *)&(tp)->t_rawq)
#define TSA_PTS_READ(tp) ((void *)&(tp)->t_canq)
-#ifdef KERNEL
__BEGIN_DECLS
-#ifndef __APPLE__
-extern struct tty *constty; /* Temporary virtual console. */
-
-int b_to_q __P((char *cp, int cc, struct clist *q));
-void catq __P((struct clist *from, struct clist *to));
-void clist_alloc_cblocks __P((struct clist *q, int ccmax, int ccres));
-void clist_free_cblocks __P((struct clist *q));
-/* void clist_init __P((void)); */ /* defined in systm.h for main() */
-int getc __P((struct clist *q));
-void ndflush __P((struct clist *q, int cc));
-int ndqb __P((struct clist *q, int flag));
-char *nextc __P((struct clist *q, char *cp, int *c));
-int putc __P((int c, struct clist *q));
-int q_to_b __P((struct clist *q, char *cp, int cc));
-int unputc __P((struct clist *q));
-
-int ttcompat __P((struct tty *tp, int com, caddr_t data, int flag));
-int ttsetcompat __P((struct tty *tp, int *com, caddr_t data, struct termios *term));
-#else /* __APPLE__ */
-int b_to_q __P((u_char *cp, int cc, struct clist *q));
-void catq __P((struct clist *from, struct clist *to));
-void clist_init __P((void));
-int getc __P((struct clist *q));
-void ndflush __P((struct clist *q, int cc));
-int ndqb __P((struct clist *q, int flag));
-u_char *firstc __P((struct clist *clp, int *c));
-u_char *nextc __P((struct clist *q, u_char *cp, int *c));
-int putc __P((int c, struct clist *q));
-int q_to_b __P((struct clist *q, u_char *cp, int cc));
-int unputc __P((struct clist *q));
-int clalloc __P((struct clist *clp, int size, int quot));
-void clfree __P((struct clist *clp));
+int b_to_q(const u_char *cp, int cc, struct clist *q);
+void catq(struct clist *from, struct clist *to);
+void clist_init(void);
+int getc(struct clist *q);
+void ndflush(struct clist *q, int cc);
+int ndqb(struct clist *q, int flag);
+u_char *firstc (struct clist *clp, int *c);
+u_char *nextc(struct clist *q, u_char *cp, int *c);
+int putc(int c, struct clist *q);
+int q_to_b(struct clist *q, u_char *cp, int cc);
+int unputc(struct clist *q);
+int clalloc(struct clist *clp, int size, int quot);
+void clfree(struct clist *clp);
+void cinit(void);
+void clrbits(u_char *cp, int off, int len);
#ifdef KERNEL_PRIVATE
-int ttcompat __P((struct tty *tp, u_long com, caddr_t data, int flag,
- struct proc *p));
-int ttsetcompat __P((struct tty *tp, u_long *com, caddr_t data, struct termios *term));
+void tty_init(void);
+/*
+ * The locked version of this function is used from routines which hold
+ * the tty_lock(), such as ttcompat() in tty_compat.c
+ */
+int ttioctl_locked(struct tty *tp, u_long com, caddr_t data, int flag,
+ struct proc *p);
+
+int ttcompat(struct tty *tp, u_long com, caddr_t data, int flag,
+ struct proc *p);
#endif /* KERNEL_PRIVATE */
-#endif /* __APPLE__ */
-void termioschars __P((struct termios *t));
-int tputchar __P((int c, struct tty *tp));
-#ifndef __APPLE__
-int ttioctl __P((struct tty *tp, int com, void *data, int flag));
-#else
-int ttioctl __P((struct tty *tp, u_long com, caddr_t data, int flag,
- struct proc *p));
-#endif
-int ttread __P((struct tty *tp, struct uio *uio, int flag));
-void ttrstrt __P((void *tp));
-int ttyselect __P((struct tty *tp, int rw, void * wql, struct proc *p));
-int ttselect __P((dev_t dev, int rw, void * wql, struct proc *p));
-void ttsetwater __P((struct tty *tp));
-int ttspeedtab __P((int speed, struct speedtab *table));
-int ttstart __P((struct tty *tp));
-void ttwakeup __P((struct tty *tp));
-int ttwrite __P((struct tty *tp, struct uio *uio, int flag));
-void ttwwakeup __P((struct tty *tp));
-void ttyblock __P((struct tty *tp));
-void ttychars __P((struct tty *tp));
-int ttycheckoutq __P((struct tty *tp, int wait));
-int ttyclose __P((struct tty *tp));
-void ttyflush __P((struct tty *tp, int rw));
-void ttyinfo __P((struct tty *tp));
-int ttyinput __P((int c, struct tty *tp));
-int ttylclose __P((struct tty *tp, int flag));
-int ttymodem __P((struct tty *tp, int flag));
-int ttyopen __P((dev_t device, struct tty *tp));
-int ttysleep __P((struct tty *tp,
- void *chan, int pri, char *wmesg, int timeout));
-int ttywait __P((struct tty *tp));
-struct tty *ttymalloc __P((void));
-void ttyfree __P((struct tty *));
+void tty_lock(struct tty *tp);
+void tty_unlock(struct tty *tp);
+
+void termioschars(struct termios *t);
+int tputchar(int c, struct tty *tp);
+int ttioctl(struct tty *tp, u_long com, caddr_t data, int flag,
+ struct proc *p);
+int ttread(struct tty *tp, struct uio *uio, int flag);
+int ttyselect(struct tty *tp, int rw, void * wql, struct proc *p);
+int ttselect(dev_t dev, int rw, void * wql, struct proc *p);
+void ttsetwater(struct tty *tp);
+int ttspeedtab(int speed, struct speedtab *table);
+int ttstart(struct tty *tp);
+void ttwakeup(struct tty *tp);
+int ttwrite(struct tty *tp, struct uio *uio, int flag);
+void ttwwakeup(struct tty *tp);
+void ttyblock(struct tty *tp);
+int ttycheckoutq(struct tty *tp, int wait);
+int ttyclose(struct tty *tp); /* LEGACY: avoid using */
+void ttyflush(struct tty *tp, int rw);
+void ttyinfo(struct tty *tp);
+void ttyinfo_locked(struct tty *tp);
+int ttyinput(int c, struct tty *tp);
+int ttylclose(struct tty *tp, int flag);
+int ttymodem(struct tty *tp, int flag);
+int ttyopen(dev_t device, struct tty *tp);
+int ttysleep(struct tty *tp,
+ void *chan, int pri, const char *wmesg, int timeout);
+int ttywait(struct tty *tp);
+struct tty *ttymalloc(void);
+void ttyfree(struct tty *);
__END_DECLS
#endif /* KERNEL */
-#endif /* __APPLE_API_UNSTABLE */
#endif /* !_SYS_TTY_H_ */
projects / apple / xnu.git / blobdiff