diff options
Diffstat (limited to 'lib/libc/sys/kqueue.2')
| -rw-r--r-- | lib/libc/sys/kqueue.2 | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/lib/libc/sys/kqueue.2 b/lib/libc/sys/kqueue.2 index ef4278cf3c35..b83d85d90d42 100644 --- a/lib/libc/sys/kqueue.2 +++ b/lib/libc/sys/kqueue.2 @@ -24,7 +24,7 @@ .\" .\" $FreeBSD$ .\" -.Dd May 1, 2020 +.Dd October 8, 2020 .Dt KQUEUE 2 .Os .Sh NAME @@ -341,6 +341,11 @@ when the BPF has enabled and there is any data to read; .Va data contains the number of bytes available. +.It Eventfds +Returns when the counter is greater than 0; +.Va data +contains the counter value, which must be cast to +.Vt uint64_t . .El .It Dv EVFILT_WRITE Takes a descriptor as the identifier, and returns whenever @@ -359,6 +364,11 @@ For sockets, the low water mark and socket error handling is identical to the .Dv EVFILT_READ case. +.Pp +For eventfds, +.Va data +will contain the maximum value that can be added to the counter +without blocking. .It Dv EVFILT_EMPTY Takes a descriptor as the identifier, and returns whenever there is no remaining data in the write buffer. |