From c5334a46523b9ac959c002fbc23a25eeccf63599 Mon Sep 17 00:00:00 2001
From: Mikhail Burakov <mburakov@mailbox.org>
Date: Sun, 9 Apr 2023 14:13:37 +0200
Subject: Add fd forgetting function to io muxer

---
 io_muxer.c | 8 +++++++-
 io_muxer.h | 1 +
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/io_muxer.c b/io_muxer.c
index 4c4c0e2..e56cb0b 100644
--- a/io_muxer.c
+++ b/io_muxer.c
@@ -98,12 +98,18 @@ enum IoMuxerResult IoMuxerIterate(struct IoMuxer* io_muxer, int timeout) {
       break;
   }
   for (size_t i = 0; i < io_muxer->size; i++) {
-    if (io_muxer->pfds[i].revents)
+    if (io_muxer->pfds[i].revents && io_muxer->pfds[i].revents != POLLNVAL)
       io_muxer->tasks[i].fun(io_muxer->tasks[i].user);
   }
   return kIoMuxerResultSuccess;
 }
 
+void IoMuxerForget(struct IoMuxer* io_muxer, int fd) {
+  for (size_t i = 0; i < io_muxer->size; i++) {
+    if (io_muxer->pfds[i].fd == fd) io_muxer->pfds[i].revents = POLLNVAL;
+  }
+}
+
 void IoMuxerDestroy(struct IoMuxer* io_muxer) {
   free(io_muxer->pfds);
   free(io_muxer->tasks);
diff --git a/io_muxer.h b/io_muxer.h
index ae6b88f..de03788 100644
--- a/io_muxer.h
+++ b/io_muxer.h
@@ -47,6 +47,7 @@ bool IoMuxerOnRead(struct IoMuxer* io_muxer, int fd, void (*fun)(void*),
 bool IoMuxerOnWrite(struct IoMuxer* io_muxer, int fd, void (*fun)(void*),
                     void* user);
 enum IoMuxerResult IoMuxerIterate(struct IoMuxer* io_muxer, int timeout);
+void IoMuxerForget(struct IoMuxer* io_muxer, int fd);
 void IoMuxerDestroy(struct IoMuxer* io_muxer);
 
 #ifdef __cplusplus
-- 
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