diff options
Diffstat (limited to 'sys/kern/subr_log.c')
| -rw-r--r-- | sys/kern/subr_log.c | 30 |
1 files changed, 18 insertions, 12 deletions
diff --git a/sys/kern/subr_log.c b/sys/kern/subr_log.c index 80193d4..01d8c4e 100644 --- a/sys/kern/subr_log.c +++ b/sys/kern/subr_log.c @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * @(#)subr_log.c 8.1 (Berkeley) 6/10/93 - * $Id: subr_log.c,v 1.29 1998/05/28 09:30:20 phk Exp $ + * $Id: subr_log.c,v 1.30 1998/06/07 17:11:38 dfr Exp $ */ /* @@ -51,6 +51,7 @@ #include <sys/signalvar.h> #include <sys/kernel.h> #include <sys/poll.h> +#include <sys/filedesc.h> #ifdef DEVFS #include <sys/devfsext.h> #endif /*DEVFS*/ @@ -75,7 +76,7 @@ static struct cdevsw log_cdevsw = static struct logsoftc { int sc_state; /* see above for possibilities */ struct selinfo sc_selp; /* process waiting on select call */ - int sc_pgid; /* process/group for async I/O */ + struct sigio *sc_sigio; /* information for SIGIO */ } logsoftc; int log_open; /* also used in log() */ @@ -90,7 +91,7 @@ logopen(dev, flags, mode, p) if (log_open) return (EBUSY); log_open = 1; - logsoftc.sc_pgid = p->p_pid; /* signal process only */ + fsetown(p->p_pid, &logsoftc.sc_sigio); /* signal process only */ return (0); } @@ -104,6 +105,7 @@ logclose(dev, flag, mode, p) log_open = 0; logsoftc.sc_state = 0; + funsetown(logsoftc.sc_sigio); return (0); } @@ -183,12 +185,8 @@ logwakeup() if (!log_open) return; selwakeup(&logsoftc.sc_selp); - if (logsoftc.sc_state & LOG_ASYNC) { - if (logsoftc.sc_pgid < 0) - gsignal(-logsoftc.sc_pgid, SIGIO); - else if ((p = pfind(logsoftc.sc_pgid))) - psignal(p, SIGIO); - } + if ((logsoftc.sc_state & LOG_ASYNC) && logsoftc.sc_sigio != NULL) + pgsigio(logsoftc.sc_sigio, SIGIO, 0); if (logsoftc.sc_state & LOG_RDWAIT) { wakeup((caddr_t)msgbufp); logsoftc.sc_state &= ~LOG_RDWAIT; @@ -229,12 +227,20 @@ logioctl(dev, com, data, flag, p) logsoftc.sc_state &= ~LOG_ASYNC; break; - case TIOCSPGRP: - logsoftc.sc_pgid = *(int *)data; + case FIOSETOWN: + return (fsetown(*(int *)data, &logsoftc.sc_sigio)); + + case FIOGETOWN: + *(int *)data = fgetown(logsoftc.sc_sigio); break; + /* This is deprecated, FIOSETOWN should be used instead. */ + case TIOCSPGRP: + return (fsetown(-(*(int *)data), &logsoftc.sc_sigio)); + + /* This is deprecated, FIOGETOWN should be used instead */ case TIOCGPGRP: - *(int *)data = logsoftc.sc_pgid; + *(int *)data = -fgetown(logsoftc.sc_sigio); break; default: |
