diff options
| author | Theo de Raadt <deraadt@cvs.openbsd.org> | 2012-04-12 11:07:21 +0000 |
|---|---|---|
| committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 2012-04-12 11:07:21 +0000 |
| commit | 12f43f95f6a8b3cd721a6d8a4818b89ab8bc6f06 (patch) | |
| tree | 250a8c7c985c9d70bbd45e708ad0072c85efe5a7 /sys/kern | |
| parent | 3e86044e3007924a312ab46469a8cbb8acba9f81 (diff) | |
New system call: getdtablecount(2) returns the number of file
descriptors the process currently has open.
ok guenther miod gilles ...
Diffstat (limited to 'sys/kern')
| -rw-r--r-- | sys/kern/kern_descrip.c | 11 | ||||
| -rw-r--r-- | sys/kern/syscalls.master | 4 |
2 files changed, 12 insertions, 3 deletions
diff --git a/sys/kern/kern_descrip.c b/sys/kern/kern_descrip.c index ef18b8bef87..dca42ddc9d7 100644 --- a/sys/kern/kern_descrip.c +++ b/sys/kern/kern_descrip.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kern_descrip.c,v 1.90 2012/04/12 11:01:37 deraadt Exp $ */ +/* $OpenBSD: kern_descrip.c,v 1.91 2012/04/12 11:07:20 deraadt Exp $ */ /* $NetBSD: kern_descrip.c,v 1.42 1996/03/30 22:24:38 christos Exp $ */ /* @@ -155,6 +155,7 @@ fd_used(struct filedesc *fdp, int fd) if (fd > fdp->fd_lastfile) fdp->fd_lastfile = fd; + fdp->fd_openfd++; } static __inline void @@ -175,6 +176,7 @@ fd_unused(struct filedesc *fdp, int fd) #endif if (fd == fdp->fd_lastfile) fdp->fd_lastfile = find_last_set(fdp, fd); + fdp->fd_openfd--; } struct file * @@ -1320,3 +1322,10 @@ sys_closefrom(struct proc *p, void *v, register_t *retval) fdpunlock(fdp); return (0); } + +int +sys_getdtablecount(struct proc *p, void *v, register_t *retval) +{ + *retval = p->p_fd->fd_openfd; + return (0); +} diff --git a/sys/kern/syscalls.master b/sys/kern/syscalls.master index af289aab619..c241438c611 100644 --- a/sys/kern/syscalls.master +++ b/sys/kern/syscalls.master @@ -1,4 +1,4 @@ -; $OpenBSD: syscalls.master,v 1.120 2012/01/17 02:34:18 guenther Exp $ +; $OpenBSD: syscalls.master,v 1.121 2012/04/12 11:07:19 deraadt Exp $ ; $NetBSD: syscalls.master,v 1.32 1996/04/23 10:24:21 mycroft Exp $ ; @(#)syscalls.master 8.2 (Berkeley) 1/13/94 @@ -72,7 +72,7 @@ 16 STD { int sys_chown(const char *path, uid_t uid, \ gid_t gid); } 17 STD { int sys_obreak(char *nsize); } break -18 OBSOL getfsstat25 +18 STD { int sys_getdtablecount(void); } 19 OBSOL olseek 20 STD NOLOCK { pid_t sys_getpid(void); } 21 STD { int sys_mount(const char *type, const char *path, \ |