make dmn_ident a uint32_t instead of an int (match kevent)

Author: dgrove-oss

src/event/event_epoll.c

@@ -48,7 +48,7 @@ typedef struct dispatch_muxnote_s {
 	TAILQ_HEAD(, dispatch_unote_linkage_s) dmn_readers_head;
 	TAILQ_HEAD(, dispatch_unote_linkage_s) dmn_writers_head;
 	int     dmn_fd;
-	int     dmn_ident;
+	uint32_t dmn_ident;
 	uint32_t dmn_events;
 	int16_t dmn_filter;
 	bool    dmn_skip_outq_ioctl;
@@ -100,7 +100,7 @@ _dispatch_muxnote_find(struct dispatch_muxnote_bucket_s *dmb,
 	dispatch_muxnote_t dmn;
 	if (filter == EVFILT_WRITE) filter = EVFILT_READ;
 	TAILQ_FOREACH(dmn, dmb, dmn_list) {
-		if (dmn->dmn_ident == (int)ident && dmn->dmn_filter == filter) {
+		if (dmn->dmn_ident == ident && dmn->dmn_filter == filter) {
 			break;
 		}
 	}
@@ -112,7 +112,7 @@ _dispatch_muxnote_find(struct dispatch_muxnote_bucket_s *dmb,
 static void
 _dispatch_muxnote_dispose(dispatch_muxnote_t dmn)
 {
-	if (dmn->dmn_filter != EVFILT_READ || dmn->dmn_fd != dmn->dmn_ident) {
+	if (dmn->dmn_filter != EVFILT_READ || (uint32_t)dmn->dmn_fd != dmn->dmn_ident) {
 		close(dmn->dmn_fd);
 	}
 	free(dmn);
@@ -196,7 +196,7 @@ _dispatch_muxnote_create(dispatch_unote_t du, uint32_t events)
 	TAILQ_INIT(&dmn->dmn_readers_head);
 	TAILQ_INIT(&dmn->dmn_writers_head);
 	dmn->dmn_fd = fd;
-	dmn->dmn_ident = (int)du._du->du_ident;
+	dmn->dmn_ident = du._du->du_ident;
 	dmn->dmn_filter = filter;
 	dmn->dmn_events = events;
 	dmn->dmn_skip_outq_ioctl = skip_outq_ioctl;
@@ -506,7 +506,7 @@ _dispatch_get_buffer_size(dispatch_muxnote_t dmn, bool writer)
 		return 1;
 	}
 
-	if (ioctl(dmn->dmn_ident, writer ? SIOCOUTQ : SIOCINQ, &n) != 0) {
+	if (ioctl((int)dmn->dmn_ident, writer ? SIOCOUTQ : SIOCINQ, &n) != 0) {
 		switch (errno) {
 		case EINVAL:
 		case ENOTTY: