diff options
Diffstat (limited to 'i386/i386at/kd_event.c')
| -rw-r--r-- | i386/i386at/kd_event.c | 54 |
1 files changed, 27 insertions, 27 deletions
diff --git a/i386/i386at/kd_event.c b/i386/i386at/kd_event.c index 304bd7f..898fd24 100644 --- a/i386/i386at/kd_event.c +++ b/i386/i386at/kd_event.c @@ -1,25 +1,25 @@ -/* +/* * Mach Operating System * Copyright (c) 1991,1990,1989 Carnegie Mellon University * All Rights Reserved. - * + * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. - * + * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. - * + * * Carnegie Mellon requests users of this software to return to - * + * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 - * + * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ @@ -59,7 +59,7 @@ WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. #ifdef MACH_KERNEL #include <device/errno.h> #include <device/io_req.h> -#else MACH_KERNEL +#else /* MACH_KERNEL */ #include <sys/file.h> #include <sys/errno.h> #include <kern/thread.h> @@ -68,7 +68,7 @@ WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. #include <sys/kernel.h> #include <sys/ioctl.h> #include <sys/tty.h> -#endif MACH_KERNEL +#endif /* MACH_KERNEL */ #include <i386/machspl.h> #include <i386at/kd.h> #include <i386at/kd_queue.h> @@ -87,7 +87,7 @@ WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. kd_event_queue kbd_queue; /* queue of keyboard events */ #ifdef MACH_KERNEL queue_head_t kbd_read_queue = { &kbd_read_queue, &kbd_read_queue }; -#else MACH_KERNEL +#else /* MACH_KERNEL */ struct proc *kbd_sel = 0; /* selecting process, if any */ short kbdpgrp = 0; /* process group leader when dev is open */ @@ -95,14 +95,14 @@ int kbdflag = 0; #define KBD_COLL 1 /* select collision */ #define KBD_ASYNC 2 /* user wants asynch notification */ #define KBD_NBIO 4 /* user wants non-blocking I/O */ -#endif MACH_KERNEL +#endif /* MACH_KERNEL */ void kbd_enqueue(); #ifdef MACH_KERNEL io_return_t X_kdb_enter_init(); io_return_t X_kdb_exit_init(); -#endif MACH_KERNEL +#endif /* MACH_KERNEL */ static boolean_t initialized = FALSE; @@ -114,7 +114,7 @@ static boolean_t initialized = FALSE; kbdinit() { spl_t s = SPLKD(); - + if (!initialized) { kdq_reset(&kbd_queue); initialized = TRUE; @@ -136,13 +136,13 @@ kbdopen(dev, flags) kbdinit(); #ifdef MACH_KERNEL -#else MACH_KERNEL +#else /* MACH_KERNEL */ if (flags & FWRITE) return(ENODEV); - + if (kbdpgrp == 0) kbdpgrp = u.u_procp->p_pgrp; -#endif MACH_KERNEL +#endif /* MACH_KERNEL */ return(0); } @@ -161,11 +161,11 @@ kbdclose(dev, flags) kb_mode = KB_ASCII; #ifdef MACH_KERNEL -#else MACH_KERNEL +#else /* MACH_KERNEL */ kbdpgrp = 0; kbdflag = 0; kbd_sel = 0; -#endif MACH_KERNEL +#endif /* MACH_KERNEL */ kdq_reset(&kbd_queue); splx(s); } @@ -220,7 +220,7 @@ io_return_t kbdsetstat(dev, flavor, data, count) return (D_SUCCESS); } -#else MACH_KERNEL +#else /* MACH_KERNEL */ /* * kbdioctl - handling for asynch & non-blocking I/O. */ @@ -291,11 +291,11 @@ kbdselect(dev, rw) else kbd_sel = (struct proc *)current_thread(); /* eeeyuck */ - + splx(s); return(0); } -#endif MACH_KERNEL +#endif /* MACH_KERNEL */ /* @@ -374,7 +374,7 @@ boolean_t kbd_read_done(ior) return (TRUE); } -#else MACH_KERNEL +#else /* MACH_KERNEL */ /*ARGSUSED*/ kbdread(dev, uio) dev_t dev; @@ -390,7 +390,7 @@ kbdread(dev, uio) if (kbdflag & KBD_NBIO) { err = EWOULDBLOCK; goto done; - } else + } else while (kdq_empty(&kbd_queue)) { splx(s); sleep((caddr_t)&kbd_queue, TTIPRI); @@ -411,7 +411,7 @@ done: splx(s); return(err); } -#endif MACH_KERNEL +#endif /* MACH_KERNEL */ /* @@ -451,7 +451,7 @@ kbd_enqueue(ev) while ((ior = (io_req_t)dequeue_head(&kbd_read_queue)) != 0) iodone(ior); } -#else MACH_KERNEL +#else /* MACH_KERNEL */ if (kbd_sel) { selwakeup(kbd_sel, kbdflag & KBD_COLL); kbd_sel = 0; @@ -460,7 +460,7 @@ kbd_enqueue(ev) if (kbdflag & KBD_ASYNC) gsignal(kbdpgrp, SIGIO); wakeup((caddr_t)&kbd_queue); -#endif MACH_KERNEL +#endif /* MACH_KERNEL */ } u_int X_kdb_enter_str[512], X_kdb_exit_str[512]; @@ -544,7 +544,7 @@ X_kdb_exit_init(data, count) X_kdb_exit_len = count; return D_SUCCESS; } -#else MACH_KERNEL +#else /* MACH_KERNEL */ X_kdb_enter_init(kp) struct X_kdb *kp; { @@ -566,4 +566,4 @@ struct X_kdb *kp; X_kdb_exit_len = kp->size>>2; } -#endif MACH_KERNEL +#endif /* MACH_KERNEL */ |