Attachment 149376 Details for Bug 194985 – Updated kern code patch

[patch] Updated kern code patch

patch-getdtablecount.txt (text/plain), 1.16 KB, created by David CARLIER on 2014-11-13 13:17:11 UTC

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Creator: David CARLIER

Created: 2014-11-13 13:17:11 UTC

Size: 1.16 KB

patch

obsolete

>diff --git a/sys/kern/kern_descrip.c b/sys/kern/kern_descrip.c
>index e955b87..856eae5 100644
>--- a/sys/kern/kern_descrip.c
>+++ b/sys/kern/kern_descrip.c
>@@ -255,6 +255,7 @@ fdused_init(struct filedesc *fdp, int fd)
> 	KASSERT(!fdisused(fdp, fd), ("fd=%d is already used", fd));
> 
> 	fdp->fd_map[NDSLOT(fd)] |= NDBIT(fd);
>+	fdp->fd_openfd++;
> }
> 
> static void
>@@ -288,6 +289,7 @@ fdunused(struct filedesc *fdp, int fd)
> 		fdp->fd_freefile = fd;
> 	if (fd == fdp->fd_lastfile)
> 		fdp->fd_lastfile = fd_last_used(fdp, fd);
>+	fdp->fd_openfd--;
> }
> 
> /*
>@@ -1262,6 +1264,33 @@ sys_closefrom(struct thread *td, struct closefrom_args *uap)
> 	return (0);
> }
> 
>+/*
>+ * Number of file descriptors per process
>+ */ 
>+#ifndef _SYS_SYSPROTO_H_
>+struct getdtablecount_args {
>+	int	dummy;
>+};
>+#endif
>+/* ARGSUSED */
>+
>+int
>+sys_getdtablecount(struct thread *td, struct getdtablecount_args *uap)
>+{
>+	struct proc *p;
>+	struct filedesc *fdp;
>+
>+	p = td->td_proc;
>+	PROC_LOCK(p);
>+	fdp = p->p_fd;
>+	FILEDESC_SLOCK(fdp);
>+	td->td_retval[0] = fdp->fd_openfd;
>+	FILEDESC_SUNLOCK(fdp);
>+	PROC_UNLOCK(p);
>+	
>+	return (0);
>+}
>+
> #if defined(COMPAT_43)
> /*
>  * Return status information about a file descriptor.

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Attachments on bug 194985: 149353 | 149376