Reduce number of per connection sys calls

1 files changed, 5 insertions, 0 deletions

diff --git a/ot_event.h b/ot_event.h
index 6023134..aa007d0 100644
--- a/ot_event.h
+++ b/ot_event.h
@@ -29,6 +29,11 @@ int  event_add(int fd, int what, uint32_t generation);
 int  event_modify(int fd, int what, uint32_t generation);
 int  event_del(int fd);
 
+/* Stop watching a descriptor and close it. Where the kernel drops a closed
+   descriptor from its set by itself, this is one system call where doing the
+   two separately would be two. */
+int  event_close(int fd);
+
 /* Waits at most timeout_ms, or indefinitely when that is negative, and fills
    out with up to max ready descriptors. Returns how many, or -1. */
 int  event_wait(ot_event *out, int max, int timeout_ms);